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Li GJ, Tan H, Nusrat H, Chang J, Chen H, Poon I, Shahi J, Tsao M, Ung Y, Cheung P, Louie AV. Safety and Efficacy of Stereotactic Body Radiotherapy for Ultra-Central Thoracic Tumours: A Single Centre Retrospective Review. Int J Radiat Oncol Biol Phys 2024:S0360-3016(24)00508-X. [PMID: 38621607 DOI: 10.1016/j.ijrobp.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 04/17/2024]
Abstract
PURPOSE/OBJECTIVE(S) We sought to evaluate the toxicity and efficacy of stereotactic body radiotherapy (SBRT) for ultra-central thoracic tumours at our institution. MATERIALS/METHODS Patients with ultra-central lung tumours or nodes, defined as having the planning target volume (PTV) overlapping or abutting the central bronchial tree and/or esophagus, treated at our institution with SBRT between 2009 and 2019 were retrospectively reviewed. All SBRT plans were generated with the goal of creating homogenous dose distributions. The primary endpoint was incidence of SBRT-related grade ≥3 toxicity, defined using the Common Terminology Criteria for Adverse Events (V5.0). Secondary endpoints included local failure (LF), progression-free survival (PFS) and overall survival (OS). Competing risk analysis was used to estimate incidence and identify predictors of severe toxicity and LF, while the Kaplan-Meier method was used to estimate PFS and OS. RESULTS 154 patients receiving 162 ultra-central courses of SBRT were included. The most common prescription was 50Gy in 5 fractions (42%), with doses ranging from 30-55Gy in 5 fractions (BED10 range 48-115Gy). The incidence of severe toxicity was 9.4% at 3 years. The most common severe toxicity was pneumonitis (n=4). There was 1 possible treatment related death from pneumonitis/pneumonia. Predictors of severe toxicity included increased PTV size, decreased PTV V95%, lung V5Gy, and lung V20Gy. The incidence of LF was 14% at 3 years. Predictors of LF included younger age, and greater volume of overlap between the PTV and esophagus. Median PFS was 8.8 months, while median OS was 44.0 months. CONCLUSION In the largest case series of ultra-central thoracic SBRT to date, homogenously prescribed SBRT was associated with relatively low rates of severe toxicity and LF. Predictors of toxicity should be interpreted in the context of the heterogeneity in toxicities observed.
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Affiliation(s)
- George J Li
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Hendrick Tan
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Humza Nusrat
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada; Department of Medical Physics, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Joe Chang
- Liverpool Cancer Therapy Centre, Liverpool Hospital, Liverpool, NSW, Australia
| | - Hanbo Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Ian Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Jeevin Shahi
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - May Tsao
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Yee Ung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Patrick Cheung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.
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Meredith EG, Filion E, Faria S, Kundapur V, Thuc TVTT, Lok BH, Raman S, Bahig H, Laba JM, Lang P, Louie AV, Hope A, Rodrigues GB, Bezjak A, Campeau MP, Duclos M, Bratman S, Swaminath A, Salunkhe R, Warner A, Palma DA. Stereotactic Radiation for Ultra-Central Non-Small Cell Lung Cancer: A Safety and Efficacy Trial (SUNSET). Int J Radiat Oncol Biol Phys 2024:S0360-3016(24)00480-2. [PMID: 38614279 DOI: 10.1016/j.ijrobp.2024.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/22/2024] [Accepted: 03/30/2024] [Indexed: 04/15/2024]
Abstract
INTRODUCTION The use of stereotactic body radiotherapy (SBRT) for tumors in close proximity to the central mediastinal structures has been associated with a high risk of toxicity. This study (BLINDED FOR REVIEW) aimed to determine the maximally tolerated dose (MTD) of SBRT for ultra-central (UC) non-small cell lung carcinoma (NSCLC), using a time-to-event continual reassessment methodology (TITE-CRM). METHODS Patients with T1-3N0M0 (≤ 6 cm) NSCLC were eligible. The MTD was defined as the dose of radiotherapy associated with a ≤ 30% rate of grade (G) 3-5 pre-specified treatment-related toxicity occurring within 2 years of treatment. The starting dose level was 60 Gy in 8 daily fractions. The dose-maximum hotspot was limited to 120% and within the planning tumor volume (PTV); tumors with endobronchial invasion were excluded. This primary analysis occurred two years after completion of accrual. RESULTS Between March 2018 and April 2021, 30 patients were enrolled at 5 institutions. The median age was 73 years (range: 65-87) and 17 (57%) were female. PTV was abutting proximal bronchial tree in 19 (63%), esophagus 5 (17%), pulmonary vein 1 (3.3%) and pulmonary artery 14 (47%). All patients received 60 Gy in 8 fractions. The median follow-up was 37 months (range: 8.9-51). Two patients (6.7%) experienced G3-5 adverse events related to treatment: 1 patient with G3 dyspnea and 1 G5 pneumonia; the latter had CT findings consistent with a background of interstitial lung disease. Three-year overall survival was 72.5% (95% confidence interval [CI]: 52.3-85.3%), progression-free survival 66.1% (95% CI: 46.1-80.2%), local control 89.6% (95% CI: 71.2-96.5%), regional control 96.4% (95% CI: 77.2-99.5%) and distant control 85.9% (95% CI: 66.7-94.5%). Quality of life scores declined numerically over time, but the decreases were not clinically or statistically significant. CONCLUSIONS 60 Gy in 8 fractions, planned and delivered with only a moderate hotspot, has a favorable adverse event rate within the pre-specified acceptability criteria, and results in excellent control for UC tumors.
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Affiliation(s)
| | - Edith Filion
- Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Sergio Faria
- McGill University Health Centre, Montréal, Canada
| | | | | | | | | | - Houda Bahig
- Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Joanna M Laba
- Division of Radiation Oncology, London Health Sciences Centre and Western University, London, Canada
| | - Pencilla Lang
- Division of Radiation Oncology, London Health Sciences Centre and Western University, London, Canada
| | - Alexander V Louie
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Andrew Hope
- Princess Margaret Cancer Centre, Toronto, Canada
| | - George B Rodrigues
- Division of Radiation Oncology, London Health Sciences Centre and Western University, London, Canada
| | | | | | - Marie Duclos
- McGill University Health Centre, Montréal, Canada
| | | | | | | | - Andrew Warner
- Division of Radiation Oncology, London Health Sciences Centre and Western University, London, Canada.
| | - David A Palma
- Division of Radiation Oncology, London Health Sciences Centre and Western University, London, Canada
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Shor D, Louie AV, Zeng KL, Menjak IB, Atenafu EG, Chia-Lin Tseng, Detsky J, Larouche J, Zhang B, Soliman H, Myrehaug S, Maralani P, Hwang DM, Sahgal A, Chen H. Utility of molecular markers in predicting local control specific to lung cancer spine metastases treated with stereotactic body radiotherapy. J Neurooncol 2024; 167:275-283. [PMID: 38526757 DOI: 10.1007/s11060-024-04603-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 02/07/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND AND PURPOSE We report outcomes following spine stereotactic body radiotherapy (SBRT) in metastatic non-small cell lung cancer (NSCLC) and the significance of programmed death-ligand 1 (PD-L1) status, epidermal growth factor receptor (EGFR) mutation and timing of immune check point inhibitors (ICI) on local failure (LF). MATERIALS AND METHODS 165 patients and 389 spinal segments were retrospectively reviewed from 2009 to 2021. Baseline patient characteristics, treatment and outcomes were abstracted. Primary endpoint was LF and secondary, overall survival (OS) and vertebral compression fracture (VCF). Multivariable analysis (MVA) evaluated factors predictive of LF and VCF. RESULTS The median follow-up and OS were: 13.0 months (range, 0.5-95.3 months) and 18.4 months (95% CI 11.4-24.6). 52.1% were male and 76.4% had adenocarcinoma. Of the 389 segments, 30.3% harboured an EGFR mutation and 17.0% were PD-L1 ≥ 50%. The 24 months LF rate in PD-L1 ≥ 50% vs PD-L1 < 50% was 10.7% vs. 38.0%, and in EGFR-positive vs. negative was 18.1% vs. 30.0%. On MVA, PD-L1 status of ≥ 50% (HR 0.32, 95% CI 0.15-0.69, p = 0.004) significantly predicted for lower LF compared to PD-L1 < 50%. Lower LF trend was seen with ICI administration peri and post SBRT (HR 0.41, 95% CI 0.16-1.05, p = 0.062). On MVA, polymetastatic disease (HR 3.28, 95% CI 1.84-5.85, p < 0.0001) and ECOG ≥ 2 (HR 1.87, 95% CI 1.16-3.02, p = 0.011) significantly predicted for worse OS and absence of baseline VCF predicted for lower VCF rate (HR 0.20, 95% CI 0.10-0.39, p < 0.0001). CONCLUSION We report a significant association of PD-L1 ≥ 50% status on improved LC rates from spine SBRT in NSCLC patients.
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Affiliation(s)
- Dana Shor
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Kang Liang Zeng
- Department of Radiation Oncology, Simcoe Muskoka Regional Cancer Centre, Barrie, ON, Canada
| | - Ines B Menjak
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Eshetu G Atenafu
- Department of Biostatistics, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Chia-Lin Tseng
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Jay Detsky
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Jeremie Larouche
- Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Beibei Zhang
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Hany Soliman
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Sten Myrehaug
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Pejman Maralani
- Department of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - David M Hwang
- Department of Laboratory Medicine & Molecular Diagnostics, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Hanbo Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada.
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Palma DA, Bahig H, Hope A, Harrow S, Debenham BJ, Louie AV, Vu TTT(T, Filion E, Bezjak A, Campeau MP, Duimering A, Giuliani ME, Laba JM, Lang P, Lok BH, Qu XM, Raman S, Rodrigues GB, Goodman CD, Gaede S, Morisset J, Warner A, Dhaliwal I, Ryerson CJ. Stereotactic Radiation Therapy in Early Non-Small Cell Lung Cancer and Interstitial Lung Disease: A Nonrandomized Clinical Trial. JAMA Oncol 2024:2815670. [PMID: 38451491 PMCID: PMC10921346 DOI: 10.1001/jamaoncol.2023.7269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/25/2023] [Indexed: 03/08/2024]
Abstract
Importance Patients with interstitial lung disease (ILD) and early-stage non-small cell lung cancer (NSCLC) have been reported to be at high risk of toxic effects after stereotactic ablative radiotherapy (SABR), but for many patients, there are limited alternative treatment options. Objective To prospectively assess the benefits and toxic effects of SABR in this patient population. Design, Setting, and Participants This prospective cohort study was conducted at 6 academic radiation oncology institutions, 5 in Canada and 1 in Scotland, with accrual between March 7, 2019, and January 12, 2022. Patients aged 18 years or older with fibrotic ILD and a diagnosis of T1-2N0 NSCLC who were not candidates for surgical resection were enrolled. Intervention Patients were treated with SABR to a dose of 50 Gy in 5 fractions every other day. Main Outcomes and Measures The study prespecified that SABR would be considered worthwhile if median overall survival-the primary end point-was longer than 1 year, with a grade 3 to 4 risk of toxic effects less than 35% and a grade 5 risk of toxic effects less than 15%. Secondary end points included toxic effects, progression-free survival (PFS), local control (LC), quality-of-life outcomes, and changes in pulmonary function. Intention-to-treat analysis was conducted. Results Thirty-nine patients enrolled and received SABR. Median age was 78 (IQR, 67-83) years and 59% (n = 23) were male. At baseline, 70% (26 of 37) of patients reported dyspnea, median forced expiratory volume in first second of expiration was 80% (IQR, 66%-90%) predicted, median forced vital capacity was 84% (IQR, 69%-94%) predicted, and median diffusion capacity of the lung for carbon monoxide was 49% (IQR, 38%-61%) predicted. Median follow-up was 19 (IQR, 14-25) months. Overall survival at 1 year was 79% (95%, CI 62%-89%; P < .001 vs the unacceptable rate), and median overall survival was 25 months (95% CI, 14 months to not reached). Median PFS was 19 months (95% CI, 13-28 months), and 2-year LC was 92% (95% CI, 69%-98%). Adverse event rates (highest grade per patient) were grade 1 to 2: n = 12 (31%), grade 3: n = 4 (10%), grade 4: n = 0, and grade 5: n = 3 (7.7%, all due to respiratory deterioration). Conclusions and Relevance In this trial, use of SABR in patients with fibrotic ILD met the prespecified acceptability thresholds for both toxicity and efficacy, supporting the use of SABR for curative-intent treatment after a careful discussion of risks and benefits. Trial Registration ClinicalTrials.gov Identifier: NCT03485378.
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Affiliation(s)
- David A. Palma
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Houda Bahig
- Department of Radiation Oncology, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Andrew Hope
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | | | - Brock J. Debenham
- Department of Radiation Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Thi Trinh Thuc (Toni) Vu
- Department of Radiation Oncology, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Edith Filion
- Department of Radiation Oncology, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Andrea Bezjak
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Marie-Pierre Campeau
- Department of Radiation Oncology, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Adele Duimering
- Department of Radiation Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Meredith E. Giuliani
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Joanna M. Laba
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Pencilla Lang
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Benjamin H. Lok
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - X. Melody Qu
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Srinivas Raman
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - George B. Rodrigues
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Christopher D. Goodman
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Stewart Gaede
- Department of Medical Physics, Western University, London, Ontario, Canada
| | - Julie Morisset
- Department of Medicine, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Andrew Warner
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Inderdeep Dhaliwal
- Department of Respirology, London Health Sciences Centre, London, Ontario, Canada
| | - Christopher J. Ryerson
- Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia, Vancouver, British Columbia, Canada
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Verma S, Young S, Kennedy TAC, Carvalhana I, Black M, Baer K, Churchman E, Warner A, Allan AL, Izaguirre-Carbonell J, Dhani H, Louie AV, Palma DA, Breadner DA. Detection of Circulating Tumor DNA After Stereotactic Ablative Radiotherapy in Patients With Unbiopsied Lung Tumors (SABR-DETECT). Clin Lung Cancer 2024; 25:e87-e91. [PMID: 38101984 DOI: 10.1016/j.cllc.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
For patients with stage I/IIA non-small-cell lung cancer (NSCLC), surgical resection is the standard treatment. However, some of these patients are not candidates for surgery or refuse a surgical option. Definitive stereotactic ablative radiotherapy (SABR) is a standard approach in these patients. Approximately 15% of patients undergoing SABR for localized NSCLC will experience a recurrence within 2 years. Furthermore, many of these patients are deemed appropriate for SABR without a tissue diagnosis, based on the likelihood of malignancy which can be calculated by validated models. A liquid biopsy, detecting ctDNA, would be useful in early detection of recurrences, and documenting a cancer diagnosis in patients without a biopsy. This is a multi-institutional study enrolling patients with suspected stage I/IIA NSCLC and a pretreatment likelihood of malignancy of ≥60% using the validated models for patients without a tissue diagnosis, in cohort 1 (n = 45). The second cohort will consist of biopsied patients (n = 30-60). SABR will be delivered as per risk-adapted protocol. Plasma will be collected for ctDNA analysis prior to the first fraction of SABR, 24 to 72 hours after first fraction, and at 3, 6, 9, 12, 18, and 24-months. The patients will be followed up with imaging at 3, 6, 9, 12, 18, and 24-months. The primary objective is to assess whether a cancer detection liquid biopsy platform can predict recurrence of NSCLC. The secondary objectives are to assess the impact of SABR on detection rates of ctDNA in patients undergoing SABR and to correlate ctDNA positivity and pretreatment probability of malignancy (NCT05921474).
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Affiliation(s)
- Saurav Verma
- Division of Medical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Sympascho Young
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Thomas A C Kennedy
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Ilda Carvalhana
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Morgan Black
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Kathie Baer
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Emma Churchman
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Andrew Warner
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Alison L Allan
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada; Department of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | | | | | - Alexander V Louie
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - David A Palma
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Daniel A Breadner
- Division of Medical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada.
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Mutsaers A, Akingbade A, Louie AV, Id Said B, Zhang L, Poon I, Smoragiewicz M, Eskander A, Karam I. Stereotactic Body Radiotherapy for Extracranial Oligometastatic Disease from Head and Neck Primary Cancers: A Systematic Review and Meta-Analysis. Cancers (Basel) 2024; 16:851. [PMID: 38473213 DOI: 10.3390/cancers16050851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/25/2024] [Accepted: 02/08/2024] [Indexed: 03/14/2024] Open
Abstract
INTRODUCTION Stereotactic body radiotherapy (SBRT) is increasingly used to treat disease in the oligometastatic (OM) setting due to mounting evidence demonstrating its efficacy and safety. Given the low population representation in prospective studies, we performed a systematic review and meta-analysis of outcomes of HNC patients with extracranial OM disease treated with SBRT. METHODS A systematic review was conducted with Cochrane, Medline, and Embase databases queried from inception to August 2022 for studies with extracranial OM HNC treated with stereotactic radiotherapy. Polymetastatic patients (>five lesions), mixed-primary cohorts failing to report HNC separately, lack of treatment to all lesions, nonquantitative endpoints, and other definitive treatments (surgery, conventional radiotherapy, and radioablation) were excluded. The meta-analysis examined the pooled effects of 12- and 24-month local control (LC) per lesion, progression-free survival (PFS), and overall survival (OS). Weighted random-effects were assessed using the DerSimonian and Laird method, with heterogeneity evaluated using the I2 statistic and Cochran Qtest. Forest plots were generated for each endpoint. RESULTS Fifteen studies met the inclusion criteria (639 patients, 831 lesions), with twelve eligible for quantitative synthesis with common endpoints and sufficient reporting. Fourteen studies were retrospective, with a single prospective trial. Studies were small, with a median of 32 patients (range: 6-81) and 63 lesions (range: 6-126). The OM definition varied, with a maximum of two to five metastases, mixed synchronous and metachronous lesions, and a few studies including oligoprogressive lesions. The most common site of metastasis was the lung. Radiation was delivered in 1-10 fractions (20-70 Gy). The one-year LC (LC1), reported in 12 studies, was 86.9% (95% confidence interval [CI]: 79.3-91.9%). LC2 was 77.9% (95% CI: 66.4-86.3%), with heterogeneity across studies. PFS was reported in five studies, with a PFS1 of 43.0% (95% CI: 35.0-51.4%) and PFS2 of 23.9% (95% CI: 17.8-31.2%), with homogeneity across studies. OS was analyzed in nine studies, demonstrating an OS1 of 80.1% (95% CI: 74.2-85.0%) and OS2 of 60.7% (95% CI: 51.3-69.4%). Treatment was well tolerated with no reported grade 4 or 5 toxicities. Grade 3 toxicity rates were uniformly below 5% when reported. CONCLUSIONS SBRT offers excellent LC and promising OS, with acceptable toxicities in OM HNC. Durable PFS remains rare, highlighting the need for effective local or systemic therapies in this population. Further investigations on concurrent and adjuvant therapies are warranted.
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Affiliation(s)
- Adam Mutsaers
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
- Division of Radiation Oncology, London Health Sciences, Western University, Toronto, ON M4N 3M5, Canada
| | - Aquila Akingbade
- Division of Radiation Oncology, London Health Sciences, Western University, Toronto, ON M4N 3M5, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Badr Id Said
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Liying Zhang
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Ian Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Martin Smoragiewicz
- Department of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Antoine Eskander
- Department of Otolaryngology-Head and Neck Surgery, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Irene Karam
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences, University of Toronto, Toronto, ON M4N 3M5, Canada
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Olson R, Abraham H, Leclerc C, Benny A, Baker S, Matthews Q, Chng N, Bergman A, Mou B, Dunne EM, Schellenberg D, Jiang W, Chan E, Atrchian S, Lefresne S, Carolan H, Valev B, Tyldesley S, Bang A, Berrang T, Clark H, Hsu F, Louie AV, Warner A, Palma DA, Howell D, Barry A, Dawson L, Grendarova P, Walker D, Sinha R, Tsai J, Bahig H, Thibault I, Koul R, Senthi S, Phillips I, Grose D, Kelly P, Armstrong J, McDermott R, Johnstone C, Vasan S, Aherne N, Harrow S, Liu M. Single vs. multiple fraction non-inferiority trial of stereotactic ablative radiotherapy for the comprehensive treatment of oligo-metastases/progression: SIMPLIFY-SABR-COMET. BMC Cancer 2024; 24:171. [PMID: 38310262 PMCID: PMC10838428 DOI: 10.1186/s12885-024-11905-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/21/2024] [Indexed: 02/05/2024] Open
Abstract
BACKGROUND Radiotherapy delivery regimens can vary between a single fraction (SF) and multiple fractions (MF) given daily for up to several weeks depending on the location of the cancer or metastases. With limited evidence comparing fractionation regimens for oligometastases, there is support to explore toxicity levels to nearby organs at risk as a primary outcome while using SF and MF stereotactic ablative radiotherapy (SABR) as well as explore differences in patient-reported quality of life and experience. METHODS This study will randomize 598 patients in a 1:1 ratio between the standard arm (MF SABR) and the experimental arm (SF SABR). This trial is designed as two randomized controlled trials within one patient population for resource efficiency. The primary objective of the first randomization is to determine if SF SABR is non-inferior to MF SABR, with respect to healthcare provider (HCP)-reported grade 3-5 adverse events (AEs) that are related to SABR. Primary endpoint is toxicity while secondary endpoints include lesional control rate (LCR), and progression-free survival (PFS). The second randomization (BC Cancer sites only) will allocate participants to either complete quality of life (QoL) questionnaires only; or QoL questionnaires and a symptom-specific survey with symptom-guided HCP intervention. The primary objective of the second randomization is to determine if radiation-related symptom questionnaire-guided HCP intervention results in improved reported QoL as measured by the EuroQoL-5-dimensions-5levels (EQ-5D-5L) instrument. The primary endpoint is patient-reported QoL and secondary endpoints include: persistence/resolution of symptom reporting, QoL, intervention cost effectiveness, resource utilization, and overall survival. DISCUSSION This study will compare SF and MF SABR in the treatment of oligometastases and oligoprogression to determine if there is non-inferior toxicity for SF SABR in selected participants with 1-5 oligometastatic lesions. This study will also compare patient-reported QoL between participants who receive radiation-related symptom-guided HCP intervention and those who complete questionnaires alone. TRIAL REGISTRATION Clinicaltrials.gov identifier: NCT05784428. Date of Registration: 23 March 2023.
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Affiliation(s)
- Robert Olson
- University of British Columbia, Vancouver, Canada.
- University of Northern British Columbia, Prince George, Canada.
- BC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada.
- Department of Radiation Oncology, BC Cancer - Centre for the North, 1215 Lethbridge Street, Prince George, British Columbia, V2M 7E9, Canada.
| | - Hadassah Abraham
- BC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada
| | - Curtis Leclerc
- University of British Columbia, Vancouver, Canada
- BC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada
| | | | - Sarah Baker
- BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - Quinn Matthews
- BC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada
| | - Nick Chng
- BC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada
| | - Alanah Bergman
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - Benjamin Mou
- BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - Emma M Dunne
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | | | - Will Jiang
- BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - Elisa Chan
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | | | - Shilo Lefresne
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - Hannah Carolan
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - Boris Valev
- BC Cancer- Victoria, Victoria, British Columbia, Canada
| | | | - Andrew Bang
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - Tanya Berrang
- BC Cancer- Victoria, Victoria, British Columbia, Canada
| | - Haley Clark
- BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - Fred Hsu
- BC Cancer- Abbotsford, Abbotsford, British Columbia, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Andrew Warner
- Department of Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - David A Palma
- Department of Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Doris Howell
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | | | - Laura Dawson
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | | | - Debra Walker
- Patient partner, BC Cancer-Prince George, Prince George, BC, Canada
| | - Rishi Sinha
- Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Jillian Tsai
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Houda Bahig
- Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | | | - Rashmi Koul
- Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | | | - Iain Phillips
- Western General Hospital/Edinburgh Cancer Centre, Edinburgh, Scotland
| | - Derek Grose
- Beatson West of Scotland Cancer Centre, Glasgow, Scotland
| | - Paul Kelly
- Bon Secours Radiotherapy Cork (In Partnership with UPMC Hillman Cancer Centre), Cork, Ireland
| | | | | | - Candice Johnstone
- Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Srini Vasan
- Precision Cancer Center, Ashland, Kentucky, United States of America
| | - Noel Aherne
- Riverina Cancer Care Centre, Wagga Wagga, New South Wales, Australia
| | - Stephen Harrow
- Western General Hospital/Edinburgh Cancer Centre, Edinburgh, Scotland
| | - Mitchell Liu
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
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Bae SH, Chun SJ, Chung JH, Kim E, Kang JK, Jang WI, Moon JE, Roquette I, Mirabel X, Kimura T, Ueno M, Su TS, Tree AC, Guckenberger M, Lo SS, Scorsetti M, Slotman BJ, Kotecha R, Sahgal A, Louie AV, Kim MS. Stereotactic Body Radiation Therapy for Hepatocellular Carcinoma: Meta-Analysis and International Stereotactic Radiosurgery Society Practice Guidelines. Int J Radiat Oncol Biol Phys 2024; 118:337-351. [PMID: 37597757 DOI: 10.1016/j.ijrobp.2023.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/26/2023] [Accepted: 08/05/2023] [Indexed: 08/21/2023]
Abstract
This systematic review and meta-analysis reports on outcomes and hepatic toxicity rates after stereotactic body radiation therapy (SBRT) for liver-confined hepatocellular carcinoma (HCC) and presents consensus guidelines regarding appropriate patient management. Using the Preferred Reporting Items for Systemic Review and Meta-Analyses guidelines, a systematic review was performed from articles reporting outcomes at ≥5 years published before October 2022 from the Embase, MEDLINE, Cochrane, and Scopus databases with the following search terms: ("stereotactic body radiotherapy" OR "SBRT" OR "SABR" OR "stereotactic ablative radiotherapy") AND ("hepatocellular carcinoma" OR "HCC"). An aggregated data meta-analysis was conducted to assess overall survival (OS) and local control (LC) using weighted random effects models. In addition, individual patient data analyses incorporating data from 6 institutions were conducted as their own subgroup analyses. Seventeen observational studies, comprising 1889 patients with HCC treated with ≤9 SBRT fractions, between 2003 and 2019, were included in the aggregated data meta-analysis. The 3- and 5-year OS rates after SBRT were 57% (95% confidence interval [CI], 47%-66%) and 40% (95% CI, 29%-51%), respectively. The 3- and 5-year LC rates after SBRT were 84% (95% CI, 77%-90%) and 82% (95% CI, 74%-88%), respectively. Tumor size was the only prognostic factor for LC. Tumor size and region were significantly associated with OS. Five-year LC and OS rates of 79% (95% CI, 0.74-0.84) and 25% (95% CI, 0.20-0.30), respectively, were observed in the individual patient data analyses. Factors prognostic for improved OS were tumor size <3 cm, Eastern region, Child-Pugh score ≤B7, and the Barcelona Clinic Liver Cancer stage of 0 and A. The incidence of severe hepatic toxicity varied according to the criteria applied. SBRT is an effective treatment modality for patients with HCC with mature follow-up. Clinical practice guidelines were developed on behalf of the International Stereotactic Radiosurgery Society (ISRS).
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Affiliation(s)
- Sun Hyun Bae
- Department of Radiation Oncology, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Seok-Joo Chun
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Joo-Hyun Chung
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Eunji Kim
- Department of Radiation Oncology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea
| | - Jin-Kyu Kang
- Department of Radiation Oncology, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Won Il Jang
- Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Ji Eun Moon
- Department of Biostatistics, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Isaure Roquette
- Academic Department of Radiation Oncology, Centre Oscar Lambret, Lille, France
| | - Xavier Mirabel
- Academic Department of Radiation Oncology, Centre Oscar Lambret, Lille, France
| | - Tomoki Kimura
- Department of Radiation Oncology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Masayuki Ueno
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Okayama, Japan; Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ting-Shi Su
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Alison C Tree
- Department of Radiotherapy, Royal Marsden NHS Foundation Trust and Institute of Cancer Research, London, United Kingdom
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - Marta Scorsetti
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Ben J Slotman
- Department of Radiation Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida; Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Science Centre, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Science Centre, University of Toronto, Toronto, Ontario, Canada
| | - Mi-Sook Kim
- Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
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Grafham GK, Craddock KJ, Huang W, Louie AV, Zhang L, Hwang DM, Parmar A. Referred molecular testing as a barrier to optimal treatment decision making in metastatic non-small cell lung cancer: Experience at a tertiary academic institution in Canada. Cancer Med 2024; 13:e6886. [PMID: 38317584 PMCID: PMC10905241 DOI: 10.1002/cam4.6886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/08/2023] [Accepted: 12/16/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Molecular testing is critical to guiding treatment approaches in patients with metastatic non-small cell lung cancer (mNSCLC), with testing delays adversely impacting the timeliness of treatment decisions. Here, we aimed to evaluate the time from initial mNSCLC diagnosis to treatment decision (TTD) following implementation of in-house EGFR, ALK, and PD-L1 testing at our institution. METHODS We conducted a retrospective chart review of 165 patients (send-out testing, n = 92; in-house testing, n = 73) with newly diagnosed mNSCLC treated at our institution. Data were compared during the send-out (March 2017-May 2019) and in-house (July 2019-March 2021) testing periods. We performed a detailed workflow analysis to provide insight on the pre-analytic, analytic, and post-analytic intervals that constituted the total TTD. RESULTS TTD was significantly shorter with in-house testing (10 days vs. 18 days, p < 0.0001), driven largely by decreased internal handling and specimen transit times (2 days vs. 3 days, p < 0.0001) and laboratory turnaround times (TAT, 3 days vs. 8 days, p < 0.0001), with 96% of in-house cases meeting the international guideline of a ≤ 10-day intra-laboratory TAT (vs. 74% send-out, p < 0.001). Eighty-eight percent of patients with in-house testing had results available at their first oncology consultation (vs. 52% send-out, p < 0.0001), and all patients with in-house testing had results available at the time of treatment decision (vs. 86% send-out, p = 0.57). CONCLUSION Our results demonstrate the advantages of in-house biomarker testing for mNSCLC at a tertiary oncology center. Incorporation of in-house testing may reduce barriers to offering personalized medicine by improving the time to optimal systemic therapy decision.
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Affiliation(s)
- Grace K. Grafham
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
| | - Kenneth J. Craddock
- Department of Laboratory Medicine and Molecular DiagnosticsSunnybrook Health Sciences CentreTorontoOntarioCanada
- Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
| | - Weei‐Yuarn Huang
- Department of Laboratory Medicine and Molecular DiagnosticsSunnybrook Health Sciences CentreTorontoOntarioCanada
- Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
| | - Alexander V. Louie
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
- Department of Radiation OncologySunnybrook Health Sciences CentreTorontoOntarioCanada
| | | | - David M. Hwang
- Department of Laboratory Medicine and Molecular DiagnosticsSunnybrook Health Sciences CentreTorontoOntarioCanada
- Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
| | - Ambica Parmar
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
- Division of Hematology and Medical Oncology, Department of MedicineSunnybrook Health Sciences CentreTorontoOntarioCanada
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10
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Safavi AH, Bryson E, Delibasic V, Tjong MC, Hallet J, Mahar A, Davis LE, Wright FC, Parmar A, Coburn NG, Louie AV. Enhancing Symptom Screening and Patient Education Among Patients with Metastatic Lung Cancer: a Qualitative Analysis. J Cancer Educ 2024; 39:86-95. [PMID: 37962792 DOI: 10.1007/s13187-023-02379-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
We explored perspectives of patients with metastatic non-small cell lung cancer (mNSCLC) on symptom screening and population-level patient-reported outcome (PRO) data regarding common symptom trajectories in the year after diagnosis. A qualitative study of patients with mNSCLC was conducted at a Canadian tertiary cancer centre. English-speaking patients diagnosed ≥ 6 months prior to study invitation were recruited, and semi-structured one-on-one interviews were conducted. Patient and treatment characteristics were obtained via chart review. Anonymized interview transcripts underwent deductive-inductive coding and thematic content analysis. Among ten participants (5 (50%) females; median (range) age, 68 (56-77) years; median (range) time since diagnosis, 28.5 (6-72) months; 6 (60%) with smoking histories), six themes were identified in total. Two themes were identified regarding symptom screening: (1) screening is useful for symptom self-monitoring and disclosure to the healthcare team, (2) screening of additional quality-of-life (QOL) domains (smoking-related stigma, sexual dysfunction, and financial toxicity) is desired. Four themes were identified regarding population-level symptom trajectory PRO data: (1) data provide reassurance and motivation to engage in symptom self-management, (2) data should be disclosed after an oncologic treatment plan is developed, (3) data should be communicated via in-person discussion with accompanying patient-education resources, and (4) communication of data should include reassurance about symptom stabilization, acknowledgement of variability in patient experience, and strategies for symptom self-management. The themes and recommendations derived from the patient experience with mNSCLC provide guidance for enhanced symptom screening and utilization of population-level symptom trajectory data for patient education.
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Affiliation(s)
- Amir H Safavi
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
| | - Emily Bryson
- Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
| | - Victoria Delibasic
- Department of Surgery, Sunnybrook Health Sciences Centre-Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, T2 163M4N 3M5, Canada
| | - Michael C Tjong
- Department of Radiation Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Julie Hallet
- Department of Surgery, Sunnybrook Health Sciences Centre-Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, T2 163M4N 3M5, Canada
| | - Alyson Mahar
- School of Nursing, Queen's University, 92 Barrie Street, Kingston, ON, K7L 3N6, Canada
| | - Laura E Davis
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, 2001 McGill College Suite 1200, Montreal, QC, H3A 1G1, Canada
| | - Frances C Wright
- Department of Surgery, Sunnybrook Health Sciences Centre-Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, T2 163M4N 3M5, Canada
| | - Ambica Parmar
- Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
| | - Natalie G Coburn
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
- Department of Surgery, Sunnybrook Health Sciences Centre-Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, T2 163M4N 3M5, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.
- Department of Surgery, Sunnybrook Health Sciences Centre-Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, T2 163M4N 3M5, Canada.
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11
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Siva S, Louie AV, Kotecha R, Barber MN, Ali M, Zhang Z, Guckenberger M, Kim MS, Scorsetti M, Tree AC, Slotman BJ, Sahgal A, Lo SS. Stereotactic body radiotherapy for primary renal cell carcinoma: a systematic review and practice guideline from the International Society of Stereotactic Radiosurgery (ISRS). Lancet Oncol 2024; 25:e18-e28. [PMID: 38181809 DOI: 10.1016/s1470-2045(23)00513-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 01/07/2024]
Abstract
Surgery is the standard of care for patients with primary renal cell carcinoma. Stereotactic body radiotherapy (SBRT) is a novel alternative for patients who are medically inoperable, technically high risk, or who decline surgery. Evidence for using SBRT in the primary renal cell carcinoma setting is growing, including several rigorously conducted prospective clinical trials. This systematic review was performed to assess the safety and efficacy of SBRT for primary renal cell carcinoma. Review results then formed the basis for the practice guidelines described, on behalf of the International Stereotactic Radiosurgery Society. 3972 publications were screened and 36 studies (822 patients) were included in the analysis. Median local control rate was 94·1% (range 70·0-100), 5-year progression-free survival was 80·5% (95% CI 72-92), and 5-year overall survival was 77·2% (95% CI 65-89). These practice guidelines addressed four key clinical questions. First, the optimal dose fractionation was 25-26 Gy in one fraction, or 42-48 Gy in three fractions for larger tumours. Second, routine post-treatment biopsy is not recommended as it is not predictive of patient outcome. Third, SBRT for primary renal cell carcinoma in a solitary kidney is safe and effective. Finally, guidelines for post-treatment follow-up are described, which include cross-axial imaging of the abdomen including both kidneys, adrenals, and surveillance of the chest initially every 6 months. This systematic review and practice guideline support the practice of SBRT for primary renal cell carcinoma as a safe and effective standard treatment option. Randomised trials with surgery and invasive ablative therapies are needed to further define best practice.
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Affiliation(s)
- Shankar Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia.
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - Melissa N Barber
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Muhammad Ali
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Zhenwei Zhang
- Center for Advanced Analytics, Baptist Health South Florida, Miami, FL, USA
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Mi-Sook Kim
- Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Marta Scorsetti
- Radiosurgery and Radiotherapy Department, IRCCS-Humanitas Research Hospital, Rozzano-Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele-Milan, Italy
| | - Alison C Tree
- Division of Radiotherapy and Imaging, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, Sutton, UK
| | - Ben J Slotman
- Department of Radiation Oncology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA, USA
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12
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Zaorsky NG, Louie AV, Siva S. Radiation therapy options in kidney cancer. Curr Opin Support Palliat Care 2023; 17:308-314. [PMID: 37877449 DOI: 10.1097/spc.0000000000000683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
PURPOSE OF REVIEW In this review, the authors discuss the use of stereotactic body radiation therapy (SBRT) for the treatment of primary and metastatic renal cell carcinoma (RCC). RECENT FINDINGS For primary RCC treated with SBRT, local control is estimated at >95%, and grade 3-4 toxicity is limited at ≤5%. The difference in glomerular filtration rate pretreatment versus posttreatment was about 7.7 ml/min. For metastatic RCC treated with SBRT, the 1-year local control is ~90%. The incidence of any grade 3-4 toxicity is ~1%. Several ongoing trials are evaluating SBRT in combination or in lieu of systemic therapy. There are many unknowns remaining in the treatment of RCC, including tumor prognostication, treatment selection, and treatment delivery. SUMMARY Stereotactic body radiation therapy is a safe and effective treatment option for patients with primary and metastatic RCC.
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Affiliation(s)
- Nicholas G Zaorsky
- University Hospitals Seidman Cancer Center and Case Western Reserve University, Cleveland, Ohio, USA
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre - Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Shankar Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Australia
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13
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Butler SJ, Louie AV, Sutradhar R, Paszat L, Brooks D, Gershon AS. Palliative Care Among Lung Cancer Patients With and Without COPD: A Population-Based Cohort Study. J Pain Symptom Manage 2023; 66:611-620.e4. [PMID: 37619760 DOI: 10.1016/j.jpainsymman.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
CONTEXT Lung cancer patients with chronic obstructive pulmonary disease (COPD) may have greater palliative care needs due to poor prognosis and symptom burden. OBJECTIVES We sought to compare the provision of timely palliative care and symptom burden by COPD status. METHODS We performed a retrospective, population-based cohort study of individuals diagnosed with lung cancer in Ontario, Canada (2009-2019) using health administrative databases and cancer registries. The impact of COPD on the probability of receiving palliative care was determined accounting for dying as a competing event, overall and stratified by stage. The provision of palliative care for patients with severe symptoms (Edmonton Symptom Assessment Scale score ≥ 7), location of the first palliative care visit and symptom severity were compared by COPD status. RESULTS A total of 74,993 patients were included in the study (48% of patients had available symptom data). At the time of lung cancer diagnosis, 50% of patients had COPD. Stage I-III patients with COPD were more likely to receive palliative care (adjusted Hazard Ratio (HR)s: 1.05-1.31) with no difference for stage IV (1.02, 95% CI: 1.00-1.04). Despite having severe symptoms, very few patients with early-stage disease received palliative care (Stage I: COPD-23% vs. no COPD-18%, SMD = 0.12). Most patients (84%) reported severe symptoms and COPD worsened symptom burden, especially among early-stage patients. CONCLUSION COPD impacts the receipt of palliative care and symptom burden for patients with early-stage lung cancer. Many patients with severe symptoms did not receive palliative care, suggesting unmet needs among this vulnerable population.
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Affiliation(s)
- Stacey J Butler
- Institute of Medical Sciences (S.J.B., A.S.G.), University of Toronto, Toronto, ON, Canada; ICES (S.J.B., R.K., L.P., A.S.G.), Toronto, ON, Canada; Sunnybrook Research Institute (S.J.B., A.V.L., R.S., L.P., A.S.G.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Alexander V Louie
- Sunnybrook Research Institute (S.J.B., A.V.L., R.S., L.P., A.S.G.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Rinku Sutradhar
- ICES (S.J.B., R.K., L.P., A.S.G.), Toronto, ON, Canada; Sunnybrook Research Institute (S.J.B., A.V.L., R.S., L.P., A.S.G.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Dalla Lana School of Public Health (R.S.), University of Toronto, Toronto, ON, Canada
| | - Lawrence Paszat
- ICES (S.J.B., R.K., L.P., A.S.G.), Toronto, ON, Canada; Sunnybrook Research Institute (S.J.B., A.V.L., R.S., L.P., A.S.G.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Institute of Health Policy (L.P., ASG), Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | - Dina Brooks
- School of Rehabilitation Sciences (D.B.), McMaster University, Hamilton, ON, Canada
| | - Andrea S Gershon
- Institute of Medical Sciences (S.J.B., A.S.G.), University of Toronto, Toronto, ON, Canada; ICES (S.J.B., R.K., L.P., A.S.G.), Toronto, ON, Canada; Sunnybrook Research Institute (S.J.B., A.V.L., R.S., L.P., A.S.G.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Institute of Health Policy (L.P., ASG), Management and Evaluation, University of Toronto, Toronto, ON, Canada.
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Mushonga M, Ung Y, Louie AV, Cheung P, Poon I, Zhang L, Tsao MN. Unanticipated Radiation Replanning for Stage III Non-small Cell Lung Cancer. Adv Radiat Oncol 2023; 8:101275. [PMID: 38047222 PMCID: PMC10692281 DOI: 10.1016/j.adro.2023.101275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 05/10/2023] [Indexed: 12/05/2023] Open
Abstract
Purpose The purpose of this study was to identify factors associated with unanticipated radiation therapy (RT) replanning in stage III non-small cell lung cancer (NSCLC). Methods and Materials Patients from a single institution with newly diagnosed stage III NSCLC treated with radical RT from January 1, 2016, to December 31, 2019, were retrospectively analyzed. The frequency and reasons for replanning were determined. Logistic regression analysis was used to identify factors associated with replanning. Results Of 144 patients included in this study, 11% (n = 16) required replanning after the start of RT. The reason for replanning in these 16 patients was changes in the target detected by cone beam computed tomography (shift in 10 patients, shrinkage in 5 patients, and growth in 1 patient). Larger planning target volume (primary and nodal) was statistically predictive of replanning (odds ratio, 2.5; 95% CI, 1.2-5.4; P = .02). The actuarial median overall survival was 33.3 months (95% CI, 10.3-43.9) for the 16 patients who were replanned and 36.3 months (95% CI, 27.4-66.5) for the remaining 128 patients (P = .96). The median time to local recurrence was 25.0 months (95% CI, 10.3-41.3) for those patients who underwent replanning, which was similar to those patients who did not undergo replanning (19.5 months; 95% CI, 11.8-23.2; P = .28). Conclusions In this study, 11% of patients treated with radical RT for NSCLC required replanning due to changes in the target detected by cone beam computed tomography. A larger planning target volume predicts a higher likelihood of requiring adaptive RT. Overall survival and local control were similar between patients who were replanned compared with those who were not replanned.
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Affiliation(s)
- Melinda Mushonga
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Yee Ung
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V. Louie
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Patrick Cheung
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Ian Poon
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | | | - May N. Tsao
- Odette Cancer Centre, Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
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15
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Zaorsky NG, Louie AV, Siva S. Radiation Therapy for Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:523-525. [PMID: 37739599 DOI: 10.1016/j.ijrobp.2023.03.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 09/24/2023]
Affiliation(s)
- Nicholas G Zaorsky
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Case Western Reserve School of Medicine, Cleveland, Ohio.
| | - Alexander V Louie
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Shankar Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
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16
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Mutsaers A, Fernandes JS, Li GJ, Ali S, Palhares DM, Chen H, Cheung P, Czarnota GJ, Karam I, Poon I, Soliman H, Vesprini D, Sahgal A, Louie AV. Uncovering the Armpit of Axillary SBRT. Int J Radiat Oncol Biol Phys 2023; 117:e195. [PMID: 37784836 DOI: 10.1016/j.ijrobp.2023.06.1064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The growing use of stereotactic body radiotherapy (SBRT) in metastatic cancer has led to applications in new and unique anatomic locations, highlighting the importance of effective, safe, reproducible treatment delivery. The objective of this study was to review our institutional SBRT experience for axillary metastases (AM), focusing on outcomes, safety and process. MATERIALS/METHODS In this ethics approved single-institution retrospective review, patients treated with SBRT to AM from 2014-2022 had tumor, treatment planning, and dosimetric variables abstracted. Toxicity was assessed per Common Terminology for Adverse Events V5.0. Cumulative incidence functions were used to estimate the incidence of local failure (LF), with death as competing risk. Kaplan-Meier method was used to estimate progression-free (PFS) and overall survival (OS). RESULTS We analyzed 37 patients with 39 AM who received SBRT. Patients were predominantly female (60%), Eastern Cooperative Oncology Group performance status 0-1 (62%), and elderly (median age: 72), with a median follow-up of 14.6 months. Common primary sites included breast (n = 16, 43%), skin (n = 7, 19%), and lung (n = 5, 14%). Treatment indication included oligoprogression (n = 18, 46%), oligometastases (n = 14, 36%) and symptomatic progression (n = 7, 18%). A minority had prior overlapping radiation (n = 7, 18%) or regional surgery (n = 4, 11%), while most had prior systemic therapy (n = 26, 70%). Significant heterogeneity in simulation, planning and treatment was identified. Immobilization included 5-point thermoplastic mask (n = 12, 32%), Vacloc (n = 12, 32%) arms-up thorax bag (n = 11, 30%). 4-D CT scans were obtained in 46%, MR simulation in 21%, and intravenous contrast in 10%. Median dose was 40 Gy (interquartile range (IQR): 35-40) in 5 fractions, (BED10 = 72 Gy), over a median of 12 days (IQR: 9-14). Seventeen cases (44%) utilized a low-dose elective volume to cover remaining axilla; 14% used a high dose clinical target volume. Median planning target volume margin was 5mm (range: 3-10mm), and plans were generated with 5 different dose constraint protocols. At first radiographic assessment, 87% had partial or complete response, with a single progression. Of symptomatic patients (n = 14), 57% had complete symptom resolution and 21% had improvement. One and 2-year LF rate were 19% and 31%, respectively. Median OS was 21.0 months (95% [Confidence Interval (CI)] 17.3-not reached) and median PFS was 7.0 months (95% [CI] 4.3-11.3). Acute and late toxicities were uncommon, with two grade 3 events (1 plexopathy in a case with tumor involving brachial plexus, 1 skin ulceration) identified, and no grade 4/5. CONCLUSION In this series of AM SBRT, low rates of toxicity, and good rates of LF and symptom improvement were observed. As treatment was delivered with a variety of individual treatment differences, an institutional protocol is under development to standardize technique, optimize efficiency and improve evaluability.
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Affiliation(s)
- A Mutsaers
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J S Fernandes
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - G J Li
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - S Ali
- Department of Radiation Therapy, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - D M Palhares
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - P Cheung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - G J Czarnota
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - I Karam
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - I Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Soliman
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - D Vesprini
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - A Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - A V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
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Mutsaers A, Tan VS, Youssef A, Nguyen T, Suchit A, Boldt G, Palma DA, Zaric G, Qu M, Louie AV. All that Glitters is Not Gold: Examining Cost Effectiveness Analyses in Radiation Oncology. Int J Radiat Oncol Biol Phys 2023; 117:e602. [PMID: 37785817 DOI: 10.1016/j.ijrobp.2023.06.1966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Cost effectiveness analyses (CEA) provide data for health policy decisions in resource constrained environments. These are important in Radiation Oncology as infrastructure and delivery costs increase and indications expand. The purpose of this study was to systematically review methodologic quality and trends in CEAs involving radiotherapy (RT). MATERIALS/METHODS A systematic review was performed on cost effectiveness/utility studies involving RT, querying PubMed and Embase from inception to September 2020. Non-English, reviews, abstracts and cost-only studies were excluded. Independent reviewers screened and abstracted study demographics, economic parameters and methodological details. RESULTS After screening 1652 abstracts, 214 met criteria. The first publication was in 1995, and more than half (n = 113, 53%) were published after 2014. Author institutions were from North America (n = 128, 60%), Europe (n = 49, 23%) and Asia (n = 30, 14%) with most reporting in US$ (n = 143, 67%). A majority utilized a decision model (n = 164, 77%), healthcare payer perspective (n = 171, 80%) and a finite time horizon (n = 108, 50%). Publications spanned 96 unique journals, most commonly International Journal of Radiation and Oncological Biology and Physics (n = 35, 16%). Treatment intent was curative in 171 studies. Disease sites included breast (n = 34, 16%), genitourinary (n = 31, 14%), and gastrointestinal (n = 31, 14%). RT was mostly used as primary treatment (n = 144, 67%), followed by adjuvant (n = 70, 33%) and neoadjuvant (n = 10, 5%). Emerging topics included stereotactic RT (n = 45, 21%), immunotherapy (n = 6, 3%), oligometastasis (n = 4, 2%), and heavy particles (n = 23, 11%). RT was compared to other RT (n = 136, 64%), surgery (n = 43, 20%), drugs (n = 14, 7%) and observation (n = 31, 17%). Incomplete reporting was common. Missing elements included analysis perspective (n = 13, 6%), time horizon (n = 38, 18%), discounting of utilities (n = 71, 33%) or costs (n = 54, 25%), and willingness-to-pay threshold (n = 59, 28%). Furthermore, 27 studies did not perform sensitivity analyses, 36 did not evaluate incremental cost-effectiveness ratio and only 60 explicitly utilized recognized reporting guidelines. Conflict of interest statements were found in 63%, with sponsor statements in 59%; 25% were industry sponsors. Outcome parameters were obtained from primary (author institution/trial data) sources in 33%, including randomized trials (RCTs) (n = 20, 9%), retrospective data (n = 20, 9%) and population data (n = 9, 4%). The remainder utilized secondary sources including RCTs (n = 71, 33%), retrospective data (n = 35, 16%) or meta-analyses (n = 11, 5%). Outcomes included quality adjusted life years (n = 158, 74%), life-years (n = 30, 14%) or toxicity (n = 26,12%). 31% utilized author generated utilities; of literature derived only 49% were matched to disease and clinical context. CONCLUSION While CEAs are increasingly common in RT, reporting and methodologic rigor must improve. Greater use of published guidelines will improve data quality for decision makers.
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Affiliation(s)
- A Mutsaers
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - V S Tan
- Division of Radiation Oncology, Western University, London Health Sciences Centre, London, ON, Canada
| | - A Youssef
- Durham Regional Cancer Centre, Oshawa, ON, Canada
| | - T Nguyen
- Division of Radiation Oncology, Western University, London Health Sciences Centre, London, ON, Canada
| | - A Suchit
- Western University, London, ON, Canada
| | - G Boldt
- Department of Radiation Oncology, Western University, London, ON, Canada
| | - D A Palma
- Division of Radiation Oncology, Western University, London Health Sciences Centre, London, ON, Canada
| | - G Zaric
- Ivey Business School, Western University, London, ON, Canada; Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - M Qu
- Division of Radiation Oncology, Western University, London Health Sciences Centre, London, ON, Canada
| | - A V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
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Wu CHD, Wierzbicki M, Parpia S, Kundapur V, Bujold A, Filion EJ, Lau H, Faria S, Ahmed N, Leong N, Okawara G, Hirmiz KJ, Owen TE, Louie AV, Wright J, Whelan TJ, Swaminath A. Long-Term Toxicity in Patients Receiving Radiotherapy for Ultracentral Stage I Non-Small Cell Lung Cancer - A Secondary Analysis of the LUSTRE Randomized Trial. Int J Radiat Oncol Biol Phys 2023; 117:S171. [PMID: 37784427 DOI: 10.1016/j.ijrobp.2023.06.636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Hypofractionated and stereotactic body radiotherapy (SBRT) are increasingly used in the treatment of centrally located, early-stage non-small cell lung cancer (NSCLC), though there are concerns of increased morbidity and mortality in patients with ultracentral tumors (UC). We report on the long-term toxicity of patients with UC lung cancer treated on a prospective randomized clinical trial of SBRT versus conventionally hypofractionated radiotherapy (CRT) for stage I NSCLC (NCT01968941). MATERIALS/METHODS Patients with UC tumors, defined as those where the planning target volume directly overlaps with the proximal bronchial tree (PBT), were identified from the larger cohort of patients treated on the trial. These patients received either SBRT with 60 Gy in 8 fractions or CRT with 60 Gy in 15 fractions. The primary endpoint of this secondary analysis was development of any grade 3 or higher toxicity defined using CTCAE version 3.0. Secondary endpoints included local control, as well as dosimetric analysis of the PBT, using EQD2 with α/β ratio of 3 to assess the relationship between dose to the PBT and toxicity. RESULTS Twenty-nine patients were identified with UC tumors; 21 received SBRT and 8 received CRT. Median age was 72 years (range 55-88 years) and 59% were female. Median FEV1 was 1.46L (range 0.64-2.37L). Patients had either T1 (59%) or T2 (41%) lesions, with median tumor size 2.5cm (range 1.1-4.9cm). Most patients had histologically confirmed disease (squamous cell, n = 10; adenocarcinoma, n = 8; radiographically suspicious, n = 11). The median follow-up was 2.9 years (range 0.7-5.2 years). The 3-year local control rate of all patients was 88.3% (95% confidence interval: 75.7-100%). There were 3 patients with late (>3 months) grade 3 toxicity (bronchial stricture, chest pain, and atelectasis) and 1 patient with late grade 5 toxicity (bleeding/hemorrhage), all treated in the SBRT arm. Median EQD2 dose to PBT in patients with grade ≥3 late toxicity compared to the rest of the cohort was: Dmax, 132 vs 129 Gy; D0.1cc, 129 vs 119 Gy; D1cc, 124 vs 80 Gy; and D5cc, 83 vs 41 Gy. Median EQD2 volumetric doses in grade ≥3 patients (compared to the rest) to PBT were: V65 Gy, 9.7 vs 2.2cc; V80 Gy, 7.9 vs 1.1cc; V90 Gy, 6.2 vs 0.4cc; and V100 Gy, 4.8 vs 0.3cc. The single patient with grade 5 toxicity had the highest D5cc (116 Gy) and V100 Gy (7cc) among all patients. CONCLUSION Stereotactic radiation with 60 Gy in 8 fractions for UC lung cancer provides good local control but carries an approximately 15-20% rate of late grade ≥3 toxicity. There appears to be a dosimetric association between toxicity and dose to the PBT. It may be more important to minimize volumetric PBT dose rather than maximum point dose to reduce risk of severe late toxicity.
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Affiliation(s)
- C H D Wu
- BC Cancer Agency, Victoria, BC, Canada
| | - M Wierzbicki
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - S Parpia
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - V Kundapur
- Saskatoon Cancer Centre, Saskatoon, SK, Canada
| | - A Bujold
- Hopital Maisonneuve-Rosemont, Universite de Montreal, Montreal, QC, Canada
| | - E J Filion
- Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
| | - H Lau
- University of Calgary, Calgary, AB, Canada
| | - S Faria
- McGill University Health Center, Montreal, QC, Canada
| | - N Ahmed
- Department of Radiation Oncology, Cancer Care Manitoba, Winnipeg, MB, Canada
| | - N Leong
- Allan Blair Cancer Centre, Regina, SK, Canada
| | - G Okawara
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - K J Hirmiz
- Windsor Regional Hospital Cancer Program, Windsor, ON, Canada
| | - T E Owen
- Cancer Centre of Southeastern Ontario, Kingston, ON, Canada
| | - A V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J Wright
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - T J Whelan
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - A Swaminath
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
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Shor D, Zeng KL, Chen H, Louie AV, Menjak I, Atenafu E, Tseng CL, Detsky J, Larouche J, Zhang B, Soliman H, Maralani P, Myrehaug SD, Sahgal A. Molecular Status Predicts for Local Control in Patients with Non-Small Cell Lung Cancer Spinal Metastases Following Spine Stereotactic Body Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e57-e58. [PMID: 37785740 DOI: 10.1016/j.ijrobp.2023.06.773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We report outcomes after spine stereotactic body radiotherapy (SBRT) in patients with metastatic non-small cell lung cancer (NSCLC), to determine the significance of programmed death-ligand 1 (PD-L1) status and epidermal growth factor (EGFR) mutation on local failure (LF) rate. MATERIALS/METHODS A total of 165 patients and 389 spinal segments were retrospectively reviewed from 2009 to 2021. Baseline patient characteristics, treatment and outcomes were abstracted. Primary endpoint was LF and secondary outcomes included overall survival (OS) and vertebral compression fracture (VCF) rates. OS was estimated using the Kaplan-Meier method. Cumulative LF and VCF rates were calculated using competing risk analysis method. Multivariable analysis (MVA) evaluated factors predictive of LF and VCF. RESULTS Median follow-up was 13 months (range, 0.5-95 months). Median OS was 18.4 months (95% CI 11.4-24.6). Median age was 67 years (range, 28.2-89.9). 52% were female, 76% had an adenocarcinoma histology and 61% had a smoking history. 49/165 (29%) had an EGFR mutation. PD-L1 status was analyzed in 109/165 (66%) patients with 16% PD-L1 ≥ 50%, 20% PD-L1 1-49% and 35% PD-L1 <1%. Of 389 segments, 79% were de novo and 21% were previously radiated. At baseline, 35% had a VCF, 27% had epidural disease, 27% had paraspinal extension, and 49% were Spinal Instability in Neoplasia Score (SINS) stable. 239/389 (61%) were treated with either 24 or 28 Gy in 2 SBRT fractions. Within 1 month of SBRT, 39/165 (24%) had a tyrosine kinase inhibitor, 27/165 (16%) immunotherapy (IO) with or without chemotherapy, and 31/165 (19%) chemotherapy alone. LF cumulative incidence at 1- and 2-years was 16.3% (95% CI 12.8-20.3%) and 25.4% (95% CI 20.9%-30%), respectively. EGFR positivity (p<0.0001), PD-L1≥50% (p = 0.013) and treatment with IO within 1 month of SBRT (p = 0.004) predicted for improved local control on MVA. The 1- and 2-year LF rate in EGFR-positive vs. negative patients were 12.9% vs. 16.6% and 17.7% vs. 28.8%, respectively, and in those PD-L1 ≥50% vs PD-L1<50% were 7.8% vs. 19.6% and 7.8% vs. 38.1% respectively. Cumulative incidence of VCF at 1- and 2-years were 6.6% (95% CI 4.4-9.4%) and 8.8% (95% CI 6.1-12.0%). MVA identified prior SBRT to the same treated segment (P<0.0001) and a baseline VCF (p<0.0001) as significant predictors. 18/389 (4.6%) had radiation-induced radiculopathy and no radiation myelopathy events detected. CONCLUSION We identify the predictive utility of EGFR mutation and PD-L1 ≥50% status on local control in NSCLC patients with spinal metastases treated with spine SBRT, and a therapeutic benefit with peri-SBRT IO.
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Affiliation(s)
- D Shor
- Sunnybrook Odette Cancer Centre, Toronto, ON, Canada
| | - K L Zeng
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - A V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - I Menjak
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - E Atenafu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - C L Tseng
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J Detsky
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J Larouche
- Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - B Zhang
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Soliman
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - P Maralani
- Department of Neuroradiology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - S D Myrehaug
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - A Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
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Id Said B, Mutsaers A, Chen H, Husain ZA, Biswas T, Dagan R, Erler D, Foote M, Louie AV, Redmond K, Ricardi U, Sahgal A, Poon I. Outcomes for oligometastatic head and neck cancer treated with stereotactic body radiotherapy: Results from an international multi-institutional consortium. Head Neck 2023; 45:2627-2637. [PMID: 37602655 DOI: 10.1002/hed.27488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 08/22/2023] Open
Abstract
BACKGROUND We report the results of an international multi-institutional cohort of oligometastatic (OMD) head and neck cancer (HNC) patients treated with SBRT. METHODS Patients with OMD HNC (≤5 metastases) treated with SBRT between 2008 and 2016 at six institutions were included. Treated metastasis control (TMC), progression-free survival (PFS), and overall survival (OS) were analyzed by multivariable analysis (MVA). RESULTS Forty-two patients with 84 HNC oligometastases were analyzed. The TMC rate at 1 and 2 years were 80% and 66%, with a median time to recurrence of 10.1 months. The median PFS and OS were 4.7 and 23.3 months. MVA identified a PTV point maximum (BED)10 > 100 Gy as a predictor of improved TMC (HR = 0.31, p = 0.034), and a cumulative PTV > 48 cc as having worse PFS (HR = 2.99, p < 0.001). CONCLUSION Favorable TMC and OS was observed in OMD HNCs treated with SBRT.
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Affiliation(s)
- Badr Id Said
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Adam Mutsaers
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Hanbo Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Zain A Husain
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Tithi Biswas
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Cleveland, Ohio, USA
| | - Roi Dagan
- University of Florida Health Proton Therapy Institute, Jacksonville, Florida, USA
| | - Darby Erler
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Matthew Foote
- Department of Radiation Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane, Queensland, Australia
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Kristin Redmond
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Ian Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
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21
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Tan VS, Correa RJM, Warner A, Ali M, Muacevic A, Ponsky L, Ellis RJ, Lo SS, Onishi H, Swaminath A, Kwon YS, Morgan SC, Cury F, Teh BS, Mahadevan A, Kaplan ID, Chu W, Hannan R, Staehler M, Grubb W, Louie AV, Siva S. 5-Year Renal Function Outcomes after SABR for Primary Renal Cell Carcinoma: A Report from the International Radiosurgery Oncology Consortium of the Kidney (IROCK). Int J Radiat Oncol Biol Phys 2023; 117:S84. [PMID: 37784588 DOI: 10.1016/j.ijrobp.2023.06.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Renal cell carcinoma (RCC) presents uncommonly in patients with a congenital solitary kidney or prior contralateral nephrectomy. The objective of this study was to compare renal function outcomes of stereotactic ablative body radiotherapy (SABR) in patients with solitary vs. bilateral kidneys. MATERIALS/METHODS Patients with primary RCC with ≥2 years of follow-up at 12 participating International Radiosurgery Consortium for Kidney (IROCK) institutions were included. Patients with upper tract urothelial carcinoma or metastatic disease were excluded. Renal function was measured by estimated glomerular filtration rate (eGFR). For patients where eGFR was not recorded, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to estimate eGFR based on known creatinine. Baseline characteristics and renal function outcomes were compared between solitary vs. bilateral kidneys. Multivariable logistic regression was used to identify factors predictive of eGFR decline ≥ 15 mL/min and any eGFR increase evaluated at 1-year post-SABR. RESULTS One hundred and ninety patients with solitary (n = 56) or bilateral kidneys (n = 134) underwent SABR and were followed for a median of 5.0 years (IQR: 3.4-6.8). Pre-SABR eGFR (mean ± SD) was similar in patients with solitary (61.1 ± 23.2 mL/min) vs. bilateral kidneys (58.0 ± 22.3 mL/min, p = 0.324). Mean tumor size was 3.70 ± 1.40 cm in solitary and 4.35 ± 2.50 cm in bilateral kidneys (p = 0.026). After SABR, an initial compensatory increase in eGFR was observed in both cohorts (22.7% solitary and 17.7% bilateral at 1 year). This compensatory increase persisted in patients with bilateral but not a solitary kidney (10.3% vs. 0% at 3-years and 21.1% vs. 0% at 5-years, respectively). At 5-years post-SABR, eGFR decreased by -14.5 ± 7.6 in solitary and -13.3 ± 15.9 mL/min in bilateral kidneys (p = 0.665). At all timepoints assessed, there were no significant differences in eGFR decline between solitary vs. bilateral cohorts (all p > 0.05). There were also no significant differences in post-SABR end-stage renal disease (7.1% vs. 6.7%) or dialysis (3.6% vs. 3.7%) in solitary vs. bilateral, respectively. Multivariable analysis demonstrated that increasing tumor size (OR per 1 cm: 1.57; 95% CI: 1.14-2.16, p = 0.006) and baseline eGFR (OR per 10 mL/min: 1.30; 95% CI: 1.02-1.66, p = 0.034) was more likely to be associated with eGFR decline ≥ 15 mL/min. There was no significant association between solitary vs. bilateral kidney and eGFR decline (OR: 1.22; 95% CI: 0.45-3.34, p = 0.693). CONCLUSION There was no observed difference between renal function outcomes in patients with a solitary vs. bilateral kidneys. While larger tumor size may increase the risk of eGFR decline post-SABR, treatment of a solitary kidney does not appear to increase the risk of renal dysfunction long-term.
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Affiliation(s)
- V S Tan
- London Regional Cancer Program, London, ON, Canada
| | - R J M Correa
- London Regional Cancer Program, London, ON, Canada
| | - A Warner
- London Regional Cancer Program, London, ON, Canada
| | - M Ali
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - A Muacevic
- University of Munich Hospitals, Munich, Germany
| | - L Ponsky
- University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | | | - S S Lo
- University of Washington School of Medicine, Seattle, WA
| | - H Onishi
- University of Yamanashi, Chuo, Japan
| | - A Swaminath
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - Y S Kwon
- University of Texas Southwestern Medical Center, Dallas, TX
| | - S C Morgan
- The Ottawa Hospital Cancer Center, Ottawa, ON, Canada
| | - F Cury
- McGill University Health Centre, Montreal, QC, Canada
| | - B S Teh
- Houston Methodist Hospital, Houston, TX
| | - A Mahadevan
- NYU Langone Health Laura and Isaac Perlmutter Cancer Center, New York, NY
| | - I D Kaplan
- Beth Israel Deaconess Medical Center, Boston, MA
| | - W Chu
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - R Hannan
- University of Texas Southwestern Medical Center, Dallas, TX
| | - M Staehler
- University of Munich Hospitals, Munich, Germany
| | - W Grubb
- Augusta University, Augusta, GA
| | - A V Louie
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - S Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
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22
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Li GJ, Tan H, Nusrat H, Chen H, Chang JH, Shahi J, Poon I, Tsao M, Ung YC, Cheung P, Louie AV. Safety and Efficacy of Stereotactic Body Radiotherapy for Ultra-Central Thoracic Tumors. Int J Radiat Oncol Biol Phys 2023; 117:e35-e36. [PMID: 37785212 DOI: 10.1016/j.ijrobp.2023.06.725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic body radiotherapy (SBRT) is increasingly utilized in the management of ultra-central thoracic tumors, although concerns regarding significant toxicity remain. We sought to evaluate the toxicity and efficacy of SBRT to these tumors at our institution. MATERIALS/METHODS Patients with ultra-central lung tumors or nodes treated at our institution with SBRT between 2009 and 2019 were retrospectively reviewed. Ultra-central was defined as having the planning target volume (PTV) overlapping or abutting the central bronchial tree and/or esophagus. All SBRT plans were generated with homogenous dose distributions using target coverage objectives of ITV V100% >99%, PTV V95% >99%, and an ideal PTV Dmax <105% (strict <120%). All plans were reviewed in quality assurance rounds by a team of dosimetrists, physicists, and radiation oncologists. The primary endpoint was incidence of severe toxicity (ST), defined as SBRT-related grade ≥3 toxicities, graded using the Common Terminology Criteria for Adverse Events V5.0. Secondary endpoints included local failure (LF), progression-free survival (PFS) and overall survival (OS). Competing risk analysis was used to estimate incidence and predictors of ST and LF, with death as a competing risk. Kaplan-Meier method was used to estimate PFS and OS. RESULTS A total of 154 patients who received 162 ultra-central courses of SBRT were included, with a median follow-up of 21.5 months. Treatment intent was most commonly for oligoprogression (46%), oligometastasis (30%), followed by curative (20%). The most frequent tumor histologies were NSCLC (41%) and RCC (26%). SBRT prescription doses ranged from 30-55 Gy in 5 fractions (BED10 range 48-115 Gy). The most common prescription was 50 Gy in 5 fractions (42%). The cumulative incidence of ST was 8.9% at 3-years. The most common ST was pneumonitis (n = 4). Notable toxicities included bronchopleural fistula (n = 2, grade 3 and 4), bronchial stricture (n = 1, grade 3), and esophagitis leading to bleeding (n = 1, grade 4). There were no esophageal strictures or perforations, and no bronchial bleeds. There was 1 possible treatment related death from pneumonitis/pneumonia. Predictors of any ST included increased lung V5 Gy, decreased PTV V95%, and not having prior radiation therapy to the chest. The cumulative incidence of LF was 4.8%, 11% and 14% at 1-, 2-, and 3-years respectively. Predictors of LF included younger age, and greater volume of overlap between the PTV and esophagus. Median PFS was 8.4 months, while median OS was 3.7 years. CONCLUSION In one of the largest case series of ultra-central thoracic SBRT reported to date, homogenously prescribed SBRT plans were associated with relatively low rates of ST and LF across a variety of treatment indications. Predictors of ST should be interpreted recognizing the heterogeneity in toxicities observed. Identified predictors of both ST and LF can contribute to future work to optimize the therapeutic ratio in treatment of ultra-central thoracic tumors.
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Affiliation(s)
- G J Li
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Tan
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Nusrat
- Department of Medical Physics, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - H Chen
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J H Chang
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - J Shahi
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - I Poon
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - M Tsao
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Y C Ung
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - P Cheung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - A V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
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23
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Nguyen EK, Korol R, Ali S, Cumal A, Erler D, Louie AV, Nguyen TK, Poon I, Cheung P, Chu W, Soliman H, Vesprini D, Sahgal A, Chen H. Predictors of pathologic fracture and local recurrence following stereotactic body radiation therapy to 505 non-spine bone metastases. Radiother Oncol 2023; 186:109792. [PMID: 37414253 DOI: 10.1016/j.radonc.2023.109792] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
PURPOSE Stereotactic Body Radiation Therapy (SBRT) is increasingly applied to treat non-spine bone metastases (NSBM) though data remains limited on this approach. In this retrospective study, we report outcomes and predictors of local failure (LF) and pathological fracture (PF) post-SBRT for NSBM using a mature single-institution database. METHODS Patients with NSBM treated with SBRT between 2011 and 2021 were identified. The primary objective was to assess the rates of radiographic LF. Secondary objectives were to assess the rates of in-field PF, overall survival (OS), and late grade ≥ 3 toxicity. Competing risks analysis was used to assess rates of LF and PF. Univariable regression and multivariable regression (MVR) were performed to investigate predictors of LF and PF. RESULTS A total of 373 patients with 505 NSBM were included in this study. Median follow-up was 26.5 months. The cumulative incidence of LF at 6, 12, and 24 months were 5.7%, 7.9%, and 12.6%, respectively. The cumulative incidence of PF at 6, 12, and 24 months were 3.8%, 6.1%, and 10.9%, respectively. Lytic NSBM (HR = 2.18; p < 0.01), a lower biologically effective dose (HR = 1.11 per 5 Gy10 decrease; p = 0.04), and a PTV ≥ 54 cc (HR = 4.32; p < 0.01) predicted for a higher risk of LF on MVR. Lytic NSBM (HR = 3.43; p < 0.01), mixed (lytic/sclerotic) lesions (HR = 2.70; p = 0.04), and rib metastases (HR = 2.68; p < 0.01) predicted for a higher risk of PF on MVR. CONCLUSION SBRT is an effective modality to treat NSBM with high rates of radiographic local control with an acceptable rate of PF. We identify predictors of both LF and PF that can serve to inform practice and trial design.
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Affiliation(s)
- Eric K Nguyen
- Department of Radiation Oncology, Walker Family Cancer Center, Niagara Health, St. Catharines, Ontario L2S 0A9, Canada
| | - Renee Korol
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Saher Ali
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Aaron Cumal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Darby Erler
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Timothy K Nguyen
- Department of Radiation Oncology, London Health Sciences Center, Western University, London, Ontario N6A 5W9, Canada
| | - Ian Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Patrick Cheung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - William Chu
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Hany Soliman
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Danny Vesprini
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada
| | - Hanbo Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario M4N 3M5, Canada.
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24
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Cao Y, Chen H, Sahgal A, Erler D, Badellino S, Biswas T, Dagan R, Foote MC, Louie AV, Poon I, Ricardi U, Redmond KJ. The impact of local control on widespread progression and survival in oligometastasis-directed SBRT: Results from a large international database. Radiother Oncol 2023; 186:109769. [PMID: 37385379 DOI: 10.1016/j.radonc.2023.109769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 06/02/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE We investigated the impact of local control (LC) on widespread progression (WSP) and overall survival (OS) in patients treated to all extracranial oligometastases (OMs) at presentation to SBRT in this retrospective review across 6 international centers. MATERIALS/METHODS Relationships between LC status of SBRT-directed OMs and OS and WSP (>5 new active/untreated lesions) were explored using Cox and Fine-Gray regression models, adjusting for radioresistant histology and pre-SBRT systemic therapy receipt. The association between LC and dosimetric predictors was analyzed with competing risk regression using death as a competing risk and across a wide range of simulated α/βratios. RESULTS In total, 1700 OMs in 1033 patients were analyzed, with 25.2% NSCLC, 22.7% colorectal, 12.8% prostate, and 8.1% breast histology. Patients who failed locally in any SBRT-directed OM within 6 mo were at 3.6-fold higher risk of death and 2.7-fold higher risk of WSP compared to those who remained locally-controlled (p < 0.001). Similar associations existed for each duration of LC investigated through 3 yrs post-SBRT. There was no significant difference in risk of WSP or death between patients who failed in a subset of SBRT-treated lesions vs. patients who failed in all lesions. Minimum dose (Dmin) to the GTV/ITV was most predictive of LC when compared to prescription dose, PTV Dmin, and PTV Dmax. Sensitivity analysis for achieving 1-yr LC > 95% found thresholds of 41.2 Gy and 55.2 Gy in 5 fractions for smaller (< 27.7 cc) and larger radioresistant lesions, respectively. CONCLUSION This large multinational cohort suggests that the duration of LC following OM-directed SBRT strongly correlates with WSP and OS.
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Affiliation(s)
- Yilin Cao
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hanbo Chen
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Darby Erler
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | | | - Tithi Biswas
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Roi Dagan
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Matthew C Foote
- Department of Radiation Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane, Australia
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Ian Poon
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | | | - Kristin J Redmond
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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25
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Viani GA, Gouveia AG, Pavoni JF, Louie AV, Detsky J, Spratt DE, Moraes FY. A Meta-analysis of the Efficacy and Safety of Stereotactic Arrhythmia Radioablation (STAR) in Patients with Refractory Ventricular Tachycardia. Clin Oncol (R Coll Radiol) 2023; 35:611-620. [PMID: 37365062 DOI: 10.1016/j.clon.2023.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/24/2023] [Accepted: 04/19/2023] [Indexed: 06/28/2023]
Abstract
AIMS Reports of stereotactic arrhythmia radioablation (STAR) in patients with refractory ventricular tachycardia after catheter ablation are limited to small series. Here, we carried out a systematic review and meta-analysis of studies to better determine the efficacy and toxicity of STAR for ventricular tachycardia. MATERIALS AND METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) and the Meta-analyses Of Observational Studies in Epidemiology (MOOSE) guidelines, eligible studies were identified on Medline, Embase, Cochrane Library and the proceedings of annual meetings to 10 February 2023. Efficacy was defined as a ventricular tachycardia burden reduction >70% at 6 months; safety was defined as <10% of any grade ≥3 toxicity. RESULTS Seven observational studies with a total of 61 patients treated were included. At 6 months, the ventricular tachycardia burden reduction was 92% (95% confidence interval 85-100%) and use of fewer than two anti-arrhythmic drugs was seen in 85% (95% confidence interval 50-100). Six months after STAR, an 86% reduction (95% confidence interval 80-93) in the number of implantable cardioverter-defibrillator shocks was observed. The rates for improved, unchanged and decreased cardiac ejection fraction were 10%, 84% and 6%, respectively. Overall survival at 6 and 12 months was 89% (95% confidence interval 81-97) and 82% (95% confidence interval 65-98). The cardiac-specific survival at 6 months was 87%. Late grade 3 toxicity occurred in 2% (95% confidence interval 0-5%) with no grade 4-5 toxicity. CONCLUSION STAR demonstrated both satisfactory efficacy and safety for the management of refractory ventricular tachycardia and was also associated with a significant decline in anti-arrhythmic drugs consumption. These findings support the continued development of STAR as a treatment option.
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Affiliation(s)
- G A Viani
- Ribeirão Preto Medical School, Department of Medical Imaging, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil.
| | - A G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Oncologia, Rio de Janeiro, Brazil
| | - J F Pavoni
- Faculdade de Filosofia, Letras e Ciências Naturais, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - A V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - J Detsky
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - D E Spratt
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - F Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
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Ali S, Louie AV, Tsao MN. Severe kyphosis and stereotactic lung radiation therapy set-up: A case report and lessons learned. J Med Imaging Radiat Sci 2023; 54:566-571. [PMID: 37422412 DOI: 10.1016/j.jmir.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/10/2023]
Abstract
INTRODUCTION Stereotactic body radiation therapy (SBRT) for lung cancers allows for safe ablative radiation doses to be delivered precisely to treat localized stage 1 lung cancers and for the treatment of lung oligometastasis/es. The successful delivery of lung SBRT requires multidisciplinary technical expertise, from radiation oncologists, medical physicists, radiation therapists, and a clinical specialist radiation therapist in SBRT. While the majority of SBRT lung set-ups are routine, we present a challenging situation in the lung SBRT set-up for a patient with severe kyphosis. CASE AND OUTCOMES An 80-year-old woman was diagnosed with a right upper lobe non-small cell lung cancer. She declined surgery and was referred for lung SBRT. Her severe kyphosis did present challenges in terms of reproducible lung SBRT set-up. We were successful in immobilizing this patient in a vacuum customized rigid support which was shaped to accommodate this patient's extreme kyphosis and elevated head. The patient tolerated the treatment position and successfully completed her lung SBRT treatments comfortably, without any reproducibility issues. Four months after SBRT, the patient was doing well without any new chest symptoms. DISCUSSION This report is the first, in the published medical literature, to describe a lung SBRT set-up for a patient with extreme kyphosis. Her successful set-up and ability to complete her lung SBRT was dependent on creative problem-solving from the multi-disciplinary team and a patient-centred approach to care CONCLUSION: Multidisciplinary collaboration was essential in the successful SBRT treatment for a severely kyphotic patient. The use of a vacuum customized thoracic rigid support was effectively used in a patient with severe kyphosis for lung SBRT. Results from this case report could be useful and guide other clinicians if presented with similarly challenging cases.
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Affiliation(s)
- S Ali
- Odette Cancer Centre, Sunnybrook Health Sciences, Toronto, ON, CANADA
| | - A V Louie
- Odette Cancer Centre, Sunnybrook Health Sciences, Toronto, ON, CANADA; Department of Radiation Oncology, University of Toronto, Toronto, ON, CANADA
| | - M N Tsao
- Odette Cancer Centre, Sunnybrook Health Sciences, Toronto, ON, CANADA; Department of Radiation Oncology, University of Toronto, Toronto, ON, CANADA.
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Verma S, Young S, Louie AV, Palma D, Breadner D. The role of thoracic consolidative radiotherapy in the setting of immunotherapy in extensive stage small cell lung cancer. Ther Adv Med Oncol 2023; 15:17588359231192399. [PMID: 37655208 PMCID: PMC10467203 DOI: 10.1177/17588359231192399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 07/19/2023] [Indexed: 09/02/2023] Open
Abstract
The improvement in treatment strategies and outcomes in small cell lung cancer (SCLC) has lagged behind other cancers. The addition of immune checkpoint inhibitors (ICIs), durvalumab and atezolizumab, to the platinum-based chemotherapy in frontline setting has improved the survival in extensive stage SCLC, (ES-SCLC), albeit modestly, and is now the new standard of care. Prior to advent of immunotherapy into the therapeutic armamentarium in ES-SCLC, consolidative thoracic radiotherapy (TRT) was associated with improved thoracic control and survival outcomes. In the era of ICIs, the role of TRT is not well defined, chiefly because TRT was not incorporated in any immunotherapy trials, secondly due to concerns regarding the increased risks of pneumonitis, and finally uncertain magnitude of benefit with this combined approach. In principle, radiation can increase in the immunogenicity of tumor and hence the activity of immune checkpoint blockade, thereby increasing efficacy both locally and distantly. Such an approach has been promising in non-small cell lung cancer with ICIs improving outcomes after concurrent chemoradiation, but remains unanswered in ES-SCLC. It is, thus, possible that the modest improvement in survival by addition of ICIs to chemotherapy in ES-SCLC can be further improved by the incorporation of consolidative TRT in selected patients. Several early phase trials and retrospective studies have suggested that such an approach may be feasible and safe. Prospective trials are ongoing to answer whether adding radiation therapy to chemoimmunotherapy will improve outcomes in ES-SCLC.
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Affiliation(s)
- Saurav Verma
- Division of Medical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program at London Health Sciences Center, London, ON, Canada
| | - Sympascho Young
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program at London Health Sciences Center, London, ON, Canada
| | - Alexander V. Louie
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - David Palma
- Division of Radiation Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program at London Health Sciences Center, London, ON, Canada
| | - Daniel Breadner
- Division of Medical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, Western University, A3-913 800 Commissioners Road East, London, ON N6A5W9, Canada
- London Regional Cancer Program at London Health Sciences Center, London, ON, Canada
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28
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Yan B, Ramadan S, Jerzak KJ, Louie AV, Donovan E. The Effectiveness and Safety of Stereotactic Body Radiation Therapy (SBRT) in the Treatment of Oligoprogressive Breast Cancer: A Systematic Review. Curr Oncol 2023; 30:6976-6985. [PMID: 37504365 PMCID: PMC10378468 DOI: 10.3390/curroncol30070505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
Stereotactic body radiotherapy (SBRT) has emerged as a technique to treat oligoprogressive sites among patients with breast cancer who are otherwise doing well on systemic therapy. This study systematically reviewed the efficacy and safety of SBRT in the setting of oligoprogressive breast cancer. A literature search was conducted in the MEDLINE database. Studies regarding SBRT and oligoprogressive breast cancer were included. Key outcomes of interest were toxicity, local control, progression, and overall survival. From 863 references, five retrospective single-center cohort studies were identified. All studies included patients with both oligometastatic and oligoprogressive disease; 112 patients with oligoprogressive breast cancer were identified across these studies. Patient age ranged from 22 to 84, with a median of 55 years of age. Most patients had hormone-receptor-positive and HER2-negative disease. SBRT doses varied from 24 to 60 Gy in 1-10 fractions based on the location/size of the lesion. Forty toxicity events were reported, of which the majority (n = 25, 62.5%) were grade 1-2 events. Among 15 patients who received SBRT concurrently with a CDK4/6 inhibitor, 37.5% of patients experienced grade 3-5 toxicities. Progression-free and overall survival ranged from 17 to 57% and 62 to 91%, respectively. There are limited data on the role of SBRT in oligoprogressive breast cancer, and prospective evaluation of this strategy is awaited to inform its safety and efficacy.
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Affiliation(s)
- Bernie Yan
- Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Sherif Ramadan
- Department of Radiation Oncology, London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Katarzyna J Jerzak
- Department of Medicine, Sunnybrook Odette Cancer Centre, Toronto, ON M4N 3M5, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Elysia Donovan
- Department of Radiation Oncology, Juravinski Cancer Centre, Hamilton Health Sciences, Hamilton, ON L8V 5C2, Canada
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Barbour AB, Kirste S, Grosu AL, Siva S, Louie AV, Onishi H, Swaminath A, Teh BS, Psutka SP, Weg ES, Chen JJ, Zeng J, Gore JL, Hall E, Liao JJ, Correa RJM, Lo SS. The Judicious Use of Stereotactic Ablative Radiotherapy in the Primary Management of Localized Renal Cell Carcinoma. Cancers (Basel) 2023; 15:3672. [PMID: 37509333 PMCID: PMC10377531 DOI: 10.3390/cancers15143672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Localized renal cell carcinoma is primarily managed surgically, but this disease commonly presents in highly comorbid patients who are poor operative candidates. Less invasive techniques, such as cryoablation and radiofrequency ablation, are effective, but require percutaneous or laparoscopic access, while generally being limited to cT1a tumors without proximity to the renal pelvis or ureter. Active surveillance is another management option for small renal masses, but many patients desire treatment or are poor candidates for active surveillance. For poor surgical candidates, a growing body of evidence supports stereotactic ablative radiotherapy (SABR) as a safe and effective non-invasive treatment modality. For example, a recent multi-institution individual patient data meta-analysis of 190 patients managed with SABR estimated a 5.5% five-year cumulative incidence of local failure with one patient experiencing grade 4 toxicity, and no other grade ≥3 toxic events. Here, we discuss the recent developments in SABR for the management of localized renal cell carcinoma, highlighting key concepts of appropriate patient selection, treatment design, treatment delivery, and response assessment.
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Affiliation(s)
- Andrew B Barbour
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Simon Kirste
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK) Partner Site Freiburg, 79085 Freiburg, Germany
| | - Anca-Liga Grosu
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK) Partner Site Freiburg, 79085 Freiburg, Germany
| | - Shankar Siva
- Division of Radiation Oncology and Cancer Imaging, Peter MacCallum Cancer Center, University of Melbourne, Parkville, VIC 3052, Australia
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Hiroshi Onishi
- Department of Radiology, School of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Anand Swaminath
- Division of Radiation Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON L8V 5C2, Canada
| | - Bin S Teh
- Department of Radiation Oncology, Cancer Center and Research Institute, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Sarah P Psutka
- Department of Urology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Emily S Weg
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Jonathan J Chen
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Jing Zeng
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - John L Gore
- Department of Urology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Evan Hall
- Department of Medical Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Jay J Liao
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Rohann J M Correa
- Department of Radiation Oncology, London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
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Zayed S, Louie AV, Breadner DA, Palma DA, Correa RJM. Radiation and immune checkpoint inhibitors in the treatment of oligometastatic non-small-cell lung cancer: a practical review of rationale, recent data, and research questions. Ther Adv Med Oncol 2023; 15:17588359231183668. [PMID: 37435562 PMCID: PMC10331344 DOI: 10.1177/17588359231183668] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 05/31/2023] [Indexed: 07/13/2023] Open
Abstract
The combined use of stereotactic ablative radiotherapy (SABR) and immune checkpoint inhibitors (ICIs) is an emerging treatment paradigm for oligometastatic non-small-cell lung cancer (NSCLC). Recent phase I and II trial data suggest that SABR to multiple metastases in addition to ICI use is safe and effective with promising progression-free survival and overall survival signals. There is great interest in capitalizing on combined immunomodulation from these two modalities for the treatment of oligometastatic NSCLC. Ongoing trials seek to validate the safety, efficacy, and preferred sequencing of SABR and ICI. This narrative review of the role of SABR when combined with ICI in oligometastatic NSCLC discusses the rationale for this bimodality treatment, summarizes recent clinical trial evidence, and proposes key principles of management based on the available evidence.
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Affiliation(s)
- Sondos Zayed
- Department of Radiation Oncology, London Health Sciences Centre, London, ON, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, Sunnybrook Hospital Odette Cancer Centre, Toronto, ON, Canada
| | - Daniel A. Breadner
- Department of Medical Oncology, London Health Sciences Centre, London, ON, Canada
| | - David A. Palma
- Department of Radiation Oncology, London Health Sciences Centre, London, ON, Canada
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Butler SJ, Louie AV, Sutradhar R, Paszat L, Brooks D, Gershon AS. Association between COPD and Stage of Lung Cancer Diagnosis: A Population-Based Study. Curr Oncol 2023; 30:6397-6410. [PMID: 37504331 PMCID: PMC10377848 DOI: 10.3390/curroncol30070471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/29/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is associated with an increased risk of lung cancer; however, the association between COPD and stage of lung cancer diagnosis is unclear. We conducted a population-based cross-sectional analysis of lung cancer patients (2008-2020) in Ontario, Canada. Using estimated propensity scores and inverse probability weighting, logistic regression models were developed to assess the association between COPD and lung cancer stage at diagnosis (early: I/II, advanced: III/IV), accounting for prior chest imaging. We further examined associations in subgroups with previously diagnosed and undiagnosed COPD. Over half (55%) of all lung cancer patients in Ontario had coexisting COPD (previously diagnosed: 45%, undiagnosed at time of cancer diagnosis: 10%). Compared to people without COPD, people with COPD had 30% lower odds of being diagnosed with lung cancer in the advanced stages (OR = 0.70, 95% CI: 0.68 to 0.72). Prior chest imaging only slightly attenuated this association (OR = 0.77, 95% CI: 0.75 to 0.80). The association with lower odds of advanced-stage diagnosis remained, regardless of whether COPD was previously diagnosed (OR = 0.68, 95% CI: 0.66 to 0.70) or undiagnosed (OR = 0.77, 95% CI: 0.73 to 0.82). Although most lung cancers are detected in the advanced stages, underlying COPD was associated with early-stage detection. Lung cancer diagnostics may benefit from enhanced partnership with COPD healthcare providers.
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Affiliation(s)
- Stacey J Butler
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Alexander V Louie
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Rinku Sutradhar
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada
| | - Lawrence Paszat
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
| | - Dina Brooks
- School of Rehabilitation Sciences, McMaster University, Hamilton, ON L8S 1C7, Canada
| | - Andrea S Gershon
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
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Safavi AH, Louie AV, Elzibak AH, Warner A, Donovan EK, Detsky JS. Management of Patients with Cardiovascular Implantable Electronic Devices Undergoing Radiation Therapy: A National Survey of Canadian Multidisciplinary Radiation Oncology Professionals. Adv Radiat Oncol 2023; 8:101184. [PMID: 36874173 PMCID: PMC9975614 DOI: 10.1016/j.adro.2023.101184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023] Open
Abstract
Purpose This study aimed to characterize contemporary management of Canadian patients with cardiovascular implantable electronic devices (CIEDs) undergoing radiation therapy (RT) in light of updated American Association of Physicists in Medicine guidelines. Methods and Materials A 22-question web-based survey was distributed to members of the Canadian Association of Radiation Oncology, Canadian Organization of Medical Physicists, and Canadian Association of Medical Radiation Technologists from January to February 2020. Respondent demographics, knowledge, and management practices were elicited. Statistical comparisons by respondent demographics were performed using χ2 and Fisher exact tests. Results In total, 155 surveys were completed by 54 radiation oncologists, 26 medical physicists, and 75 radiation therapists in academic (51%) and community (49%) practices across all provinces. The majority of respondents (77%) had managed >10 patients with CIEDs in their career. Most respondents (70%) reported using risk-stratified institutional management protocols. Respondents used manufacturer recommendations, rather than American Association of Physicists in Medicine or institutionally recommended dose limits, when the manufacturer limit was 0 Gy (44%), 0 to 2 Gy (45%), or >2 Gy (34%). The majority of respondents (86%) reported institutional policies to refer to a cardiologist for CIED evaluation both before and after completion of RT. Cumulative dose to CIED, pacing dependence, and neutron production were considered during risk stratification by 86%, 74%, and 50% of participants, respectively. Dose and energy thresholds for high-risk management were not known by 45% and 52% of respondents, with radiation oncologists and radiation therapists significantly less likely to report thresholds than medical physicists (P < .001). Although 59% of respondents felt comfortable managing patients with CIEDs, community respondents were less likely to feel comfortable than academic respondents (P = .037). Conclusions The management of Canadian patients with CIEDs undergoing RT is characterized by variability and uncertainty. National consensus guidelines may have a role in improving provider knowledge and confidence in caring for this growing population.
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Affiliation(s)
- Amir H. Safavi
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre – Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Alyaa H. Elzibak
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre – Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Andrew Warner
- Department of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada
| | - Elysia K. Donovan
- Department of Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Jay S. Detsky
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre – Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Corresponding author: Jay S. Detsky, MD, PhD
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33
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Mayinger M, Kotecha R, Sahgal A, Kim MS, Lo SS, Louie AV, Scorsetti M, Slotman B, Guckenberger M. Stereotactic Body Radiotherapy for Lung Oligo-metastases: Systematic Review and International Stereotactic Radiosurgery Society Practice Guidelines. Lung Cancer 2023; 182:107284. [PMID: 37390723 DOI: 10.1016/j.lungcan.2023.107284] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/02/2023]
Abstract
PURPOSE A systematic review of treatment characteristics, outcomes, and treatment-related toxicities of stereotactic body radiation therapy (SBRT) for pulmonary oligometastases served as the basis for development of this International Stereotactic Radiosurgery Society (ISRS) practice guideline. METHODS In accordance with PRISMA guidelines, a systematic review was performed of retrospective series with ≥50 patients/lung metastases, prospective trials with ≥25 patients/lung metastases, analyses of specific high-risk situations, and all randomized trials published between 2012 and July 2022 in the MEDLINE or Embase database using the key words "lung oligometastases", "lung metastases", "pulmonary metastases", "pulmonary oligometastases", "stereotactic body radiation therapy (SBRT)" and "stereotactic ablative body radiotherapy (SBRT)". Weighted random effects models were used to calculate pooled outcomes estimates. RESULTS Of the 1884 articles screened, 35 analyses (27 retrospective-, 5 prospective, and 3 randomized trials) reporting on treatment of >3600 patients and >4650 metastases were included. The median local control was 90 % (Range: 57-100 %) at 1 year and 79 % (R: 70-96 %) at 5 years. Acute toxicity ≥3 was reported for 0.5 % and late toxicity ≥3 for 1.8 % of patients. A total of 21 practice recommendations covering the areas of staging & patient selection (n = 10), SBRT treatment (n = 10), and follow-up (n = 1) were developed, with agreements rates of 100 %, except for recommendation 13 (83 %). CONCLUSION SBRT represents an effective definitive local treatment modality combining high local control rates with low risk of radiation-induced toxicities.
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Affiliation(s)
- Michael Mayinger
- Department of Radiation Oncology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Mi-Sook Kim
- Department of Radiation Oncology, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Nowon-gu, Seoul, South Korea
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA, USA
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Marta Scorsetti
- Department of Radiotherapy and Radiosurgery, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano 20089, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
| | - Ben Slotman
- Department of Radiation Oncology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland.
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Yan M, Louie AV, Kotecha R, Ashfaq Ahmed M, Zhang Z, Guckenberger M, Kim MS, Lo SS, Scorsetti M, Tree AC, Sahgal A, Slotman BJ. Stereotactic body radiotherapy for Ultra-Central lung Tumors: A systematic review and Meta-Analysis and International Stereotactic Radiosurgery Society practice guidelines. Lung Cancer 2023; 182:107281. [PMID: 37393758 DOI: 10.1016/j.lungcan.2023.107281] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Stereotactic body radiotherapy (SBRT) is an effective and safe modality for early-stage lung cancer and lung metastases. However, tumors in an ultra-central location pose unique safety considerations. We performed a systematic review and meta-analysis to summarize the current safety and efficacy data and provide practice recommendations on behalf of the International Stereotactic Radiosurgery Society (ISRS). METHODS We performed a systematic review using PubMed and EMBASE databases of patients with ultra-central lung tumors treated with SBRT. Studies reporting local control (LC) and/or toxicity were included. Studies with <5 treated lesions, non-English language, re-irradiation, nodal tumors, or mixed outcomes in which ultra-central tumors could not be discerned were excluded. Random-effects meta-analysis was performed for studies reporting relevant endpoints. Meta-regression was conducted to determine the effect of various covariates on the primary outcomes. RESULTS 602 unique studies were identified of which 27 (one prospective observational, the remainder retrospective) were included, representing 1183 treated targets. All studies defined ultra-central as the planning target volume (PTV) overlapping the proximal bronchial tree (PBT). The most common dose fractionations were 50 Gy/5, 60 Gy/8, and 60 Gy/12 fractions. The pooled 1- and 2-year LC estimates were 92 % and 89 %, respectively. Meta-regression identified biological effective dose (BED10) as a significant predictor of 1-year LC. A total of 109 grade 3-4 toxicity events, with a pooled incidence of 6 %, were reported, most commonly pneumonitis. There were 73 treatment related deaths, with a pooled incidence of 4 %, with the most common being hemoptysis. Anticoagulation, interstitial lung disease, endobronchial tumor, and concomitant targeted therapies were observed risk factors for fatal toxicity events. CONCLUSION SBRT for ultra-central lung tumors results in acceptable rates of local control, albeit with risks of severe toxicity. Caution should be taken for appropriate patient selection, consideration of concomitant therapies, and radiotherapy plan design.
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Affiliation(s)
- Michael Yan
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, University of Toronto, Toronto, Canada.
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, USA
| | - Md Ashfaq Ahmed
- Center for Advanced Analytics, Baptist Health South Florida, Miami, USA
| | - Zhenwei Zhang
- Center for Advanced Analytics, Baptist Health South Florida, Miami, USA
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Mi-Sook Kim
- Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Seattle, USA
| | - Marta Scorsetti
- Radiosurgery and Radiotherapy Department, IRCCS-Humanitas Research Hospital, Rozzano-Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele-Milan, Italy
| | - Alison C Tree
- Division of Radiotherapy and Imaging, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, Sutton, UK
| | - Arjun Sahgal
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Ben J Slotman
- Department of Radiation Oncology, Amsterdam University Medical Center, Amsterdam, the Netherlands
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Fu R, Sutradhar R, Li Q, Hanna TP, Chan KKW, Irish JC, Coburn N, Hallet J, Dare A, Singh S, Parmar A, Earle CC, Lapointe-Shaw L, Krzyzanowska MK, Finelli A, Louie AV, Look Hong NJ, Witterick IJ, Mahar A, Urbach DR, McIsaac DI, Enepekides D, Eskander A. Association between the COVID-19 pandemic and first cancer treatment modality: a population-based cohort study. CMAJ Open 2023; 11:E426-E433. [PMID: 37160325 PMCID: PMC10174267 DOI: 10.9778/cmajo.20220102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
BACKGROUND Physicians were directed to prioritize using nonsurgical cancer treatment at the beginning of the COVID-19 pandemic. We sought to quantify the impact of this policy on the modality of first cancer treatment (surgery, chemotherapy, radiotherapy or no treatment). METHODS In this population-based study using Ontario data from linked administrative databases, we identified adults diagnosed with cancer from January 2016 to November 2020 and their first cancer treatment received within 1 year postdiagnosis. Segmented Poisson regressions were applied to each modality to estimate the change in mean 1-year recipient volume per thousand patients (rate) at the start of the pandemic (the week of Mar. 15, 2020) and change in the weekly trend in rate during the pandemic (Mar. 15, 2020, to Nov. 7, 2020) relative to before the pandemic (Jan. 3, 2016, to Mar. 14, 2020). RESULTS We included 321 535 people diagnosed with cancer. During the first week of the COVID-19 pandemic, the mean rate of receiving upfront surgery over the next year declined by 9% (rate ratio 0.91, 95% confidence interval [CI] 0.88-0.95), and chemotherapy and radiotherapy rates rose by 30% (rate ratio 1.30, 95% CI 1.23-1.36) and 13% (rate ratio 1.13, 95% CI 1.07-1.19), respectively. Subsequently, the 1-year rate of upfront surgery increased at 0.4% for each week (rate ratio 1.004, 95% CI 1.002-1.006), and chemotherapy and radiotherapy rates decreased by 0.9% (rate ratio 0.991, 95% CI 0.989-0.994) and 0.4% (rate ratio 0.996, 95% CI 0.994-0.998), respectively, per week. Rates of each modality resumed to prepandemic levels at 24-31 weeks into the pandemic. INTERPRETATION An immediate and sustained increase in use of nonsurgical therapy as the first cancer treatment occurred during the first 8 months of the COVID-19 pandemic in Ontario. Further research is needed to understand the consequences.
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Affiliation(s)
- Rui Fu
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Rinku Sutradhar
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Qing Li
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Timothy P Hanna
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Kelvin K W Chan
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Jonathan C Irish
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Natalie Coburn
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Julie Hallet
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Anna Dare
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Simron Singh
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Ambica Parmar
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Craig C Earle
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Lauren Lapointe-Shaw
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Monika K Krzyzanowska
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Antonio Finelli
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Alexander V Louie
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Nicole J Look Hong
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Ian J Witterick
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Alyson Mahar
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - David R Urbach
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Daniel I McIsaac
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Danny Enepekides
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont
| | - Antoine Eskander
- ICES (Fu, Sutradhar, Li, Coburn, Hallet, Dare, Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Urbach, McIsaac, Eskander); Institute of Health Policy, Management and Evaluation (Fu, Sutradhar, Chan, Irish, Coburn, Hallet, Dare, Singh, Lapointe-Shaw, Krzyzanowska, Finelli, Hong, Eskander) and Department of Otolaryngology - Head and Neck Surgery (Fu, Witterick, Enepekides, Eskander), University of Toronto, Toronto, Ont.; Division of Cancer Care and Epidemiology (Hanna), Cancer Research Institute, Queen's University, Kingston, Ont.; Ontario Institute for Cancer Research (Hanna); Odette Cancer Centre (Chan, Hallet), Sunnybrook Health Sciences Centre; Ontario Health (Chan, Coburn, Witterick) - Cancer Care Ontario; Department of Otolaryngology - Head and Neck Surgery (Irish, Witterick), University of Toronto, Princess Margaret Cancer Centre; Department of Surgery (Coburn, Hallet, Dare, Finelli, Hong) and Department of Medicine (Singh, Parmar, Earle, Lapointe-Shaw, Krzyzanowska), University of Toronto; Department of Radiation Oncology (Louie), University of Toronto, Toronto, Ont.; Department of Community Health Sciences (Mahar), University of Manitoba, Winnipeg, Man.; Department of Surgery (Urbach), Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (McIsaac), The Ottawa Hospital, Ottawa, Ont.
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Arifin AJ, Tan VS, Yan M, Warner A, Boldt RG, Chen H, Rodrigues GB, Palma DA, Louie AV. Ensuring Superior Reporting of Radiation Therapy Noninferiority Trials: A Systematic Review. Adv Radiat Oncol 2023; 8:101178. [PMID: 36852015 PMCID: PMC9958349 DOI: 10.1016/j.adro.2023.101178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/09/2023] [Indexed: 01/22/2023] Open
Abstract
Purpose Although the frequency of noninferiority trials is increasing, the consistency of the reporting of these trials can vary. The aim of this systematic review was to assess the reporting quality of radiation therapy noninferiority trials. Methods and Materials The PubMed, Embase, and Cochrane databases were queried for randomized controlled radiation therapy trials with noninferiority hypotheses published in English between January 2000 and July 2022, and this was performed by an information scientist. Descriptive statistics were used to summarize data. Results Of 423 records screened, 59 (14%) were included after full-text review. All were published after 2003 and open label. The most common primary cancer type was breast (n = 15, 25%). Altered radiation fractionation (n = 26, 45%) and radiation de-escalation (n = 11, 19%) were the most common types of interventions. The most common primary endpoints were locoregional control (n = 17, 29%) and progression-free survival (n = 14, 24%). Fifty-three (90%) reported the noninferiority margin, and only 9 (17%) provided statistical justification for the margin. The median absolute noninferiority margin was 9% (interquartile range, 5%-10%), and the median relative margin was 1.51 (interquartile range, 1.33-2.04). Sample size calculations and confidence intervals were reported in 54 studies (92%). Both intention-to-treat and per-protocol analyses were reported in 27 studies (46%). In 31 trials (53%), noninferiority of the primary endpoint was reached. Conclusions There was variability in the reporting of key components of noninferiority trials. We encourage consideration of additional statistical reasoning such as guidelines or previous trials in the selection of the noninferiority margin, reporting both absolute and relative margins, and the avoidance of statistically vague or misleading language in the reporting of future noninferiority trials.
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Affiliation(s)
- Andrew J Arifin
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - Vivian S Tan
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - Michael Yan
- Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Andrew Warner
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - R G Boldt
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - Hanbo Chen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - George B Rodrigues
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - David A Palma
- Division of Radiation Oncology, London Regional Cancer Program, London, Ontario, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Simone CB, Bradley J, Chen AB, Daly ME, Louie AV, Robinson CG, Videtic GMM, Rodrigues G. ASTRO Radiation Therapy Summary of the ASCO Guideline on Management of Stage III Non-Small Cell Lung Cancer. Pract Radiat Oncol 2023; 13:195-202. [PMID: 37080641 DOI: 10.1016/j.prro.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 04/22/2023]
Abstract
PURPOSE To develop a radiation therapy summary of recommendations on the management of locally advanced non-small cell lung cancer (NSCLC) based on the Management of Stage III Non-Small Cell Lung Cancer: American Society of Clinical Oncology Guideline, which was endorsed by the American Society for Radiation Oncology (ASTRO). METHODS The American Society of Clinical Oncology, ASTRO, and the American College of Chest Physicians convened a multidisciplinary panel to develop a guideline based on a systematic review of the literature and a formal consensus process, that has been separately published. A new panel consisting of radiation oncologists from the original guideline as well as additional ASTRO members was formed to provide further guidance to the radiation oncology community. A total of 127 articles met the eligibility criteria to answer 5 clinical questions. This summary focuses on the 3 radiation therapy questions (neoadjuvant, adjuvant, and unresectable settings). RESULTS Radiation-specific recommendations are summarized with additional relevant commentary on specific questions regarding the management of preoperative radiation, postoperative radiation, and combined chemoradiation. CONCLUSIONS Patients with stage III NSCLC who are planned for surgical resection, should receive either neoadjuvant chemotherapy or chemoradiation. The addition of neoadjuvant treatment is particularly important in patients planned for surgery in the N2 or superior sulcus settings. Postoperatively, patients who did not receive neoadjuvant chemotherapy should be offered adjuvant chemotherapy. The use of postoperative radiation for completely resected N2 disease is not routinely recommended. Unresectable patients with stage III NSCLC should ideally be managed with combined concurrent chemoradiation using a platinum-based doublet with a standard radiation dose of 60 Gy followed by consolidation durvalumab in patients without progression after initial therapy. Patients who cannot tolerate a concurrent chemoradiation approach can be managed either by sequential chemotherapy followed by radiation or by dose-escalated or hypofractionated radiation alone.
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Affiliation(s)
- Charles B Simone
- Department of Radiation Oncology, New York Proton Center, New York, New York
| | - Jeffrey Bradley
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, Georgia
| | - Aileen B Chen
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Megan E Daly
- Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, Sacramento, California
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Clifford G Robinson
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Gregory M M Videtic
- Department of Radiation Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio
| | - George Rodrigues
- Department of Radiation Oncology, London Health Sciences Cancer, London, Ontario, Canada.
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Fu R, Sutradhar R, Li Q, Kamalraj P, Dare A, Hanna TP, Chan KKW, Irish JC, Coburn N, Hallet J, Singh S, Parmar A, Earle CC, Lapointe-Shaw L, Krzyzanowska MK, Louie AV, Mahar A, Urbach DR, McIsaac DI, Enepekides D, Gomez D, Look Hong NJ, Tinmouth J, Eskander A. Early survival for patients newly diagnosed with cancer during COVID-19 in Ontario, Canada: A population-based cohort study. Cancer Med 2023. [PMID: 36999960 DOI: 10.1002/cam4.5861] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/15/2023] [Accepted: 03/16/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Little is known about the association between the COVID-19 pandemic and early survival among newly diagnosed cancer patients. METHODS This retrospective population-based cohort study used linked administrative datasets from Ontario, Canada. Adults (≥18 years) who received a cancer diagnosis between March 15 and December 31, 2020, were included in a pandemic cohort, while those diagnosed during the same dates in 2018/2019 were included in a pre-pandemic cohort. All patients were followed for one full year after the date of diagnosis. Cox proportional hazards regression models were used to assess survival in relation to the pandemic, patient characteristics at diagnosis, and the modality of first cancer treatment as a time-varying covariate. Interaction terms were explored to measure the pandemic association with survival for each cancer type. RESULTS Among 179,746 patients, 53,387 (29.7%) were in the pandemic cohort and 37,741 (21.0%) died over the first post-diagnosis year. No association between the pandemic and survival was found when adjusting for patient characteristics at diagnosis (HR 0.99 [95% CI 0.96-1.01]), while marginally better survival was found for the pandemic cohort when the modality of treatment was additionally considered (HR 0.97 [95% CI 0.95-0.99]). When examining each cancer type, only a new melanoma diagnosis was associated with a worse survival in the pandemic cohort (HR 1.25 [95% CI 1.05-1.49]). CONCLUSIONS Among patients able to receive a cancer diagnosis during the pandemic, one-year overall survival was not different than those diagnosed in the previous 2 years. This study highlights the complex nature of the COVID-19 pandemic impact on cancer care.
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Affiliation(s)
- Rui Fu
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Rinku Sutradhar
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Qing Li
- ICES, Toronto, Ontario, Canada
| | - Pabiththa Kamalraj
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Anna Dare
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Timothy P Hanna
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, Ontario, Canada
- Ontario Institute for Cancer Research (OICR), Toronto, Ontario, Canada
| | - Kelvin K W Chan
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Ontario Health-Cancer Care Ontario, Toronto, Ontario, Canada
| | - Jonathan C Irish
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology-Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Natalie Coburn
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Julie Hallet
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Ontario Institute for Cancer Research (OICR), Toronto, Ontario, Canada
| | - Simron Singh
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ambica Parmar
- ICES, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Craig C Earle
- ICES, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lauren Lapointe-Shaw
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Monika K Krzyzanowska
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Alyson Mahar
- School of Nursing, Queen's University, Kingston, Ontario, Canada
| | - David R Urbach
- ICES, Toronto, Ontario, Canada
- Department of Surgery, Women's College Hospital, Toronto, Ontario, Canada
| | - Daniel I McIsaac
- ICES, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Danny Enepekides
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - David Gomez
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Division of General Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Nicole J Look Hong
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jill Tinmouth
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Ontario Health-Cancer Care Ontario, Toronto, Ontario, Canada
| | - Antoine Eskander
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
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Nguyen EK, Poon I, Ung YC, Tsao M, Korol R, Elzibak AH, Erler D, Zhang L, Louie AV, Cheung P. Toxicity and Efficacy of Multitarget Thoracic Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 115:897-905. [PMID: 36368432 DOI: 10.1016/j.ijrobp.2022.10.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 10/07/2022] [Accepted: 10/23/2022] [Indexed: 11/09/2022]
Abstract
PURPOSE With the increasing use of stereotactic body radiation therapy (SBRT) for primary and metastatic cancer, use of multitarget thoracic (MTT) SBRT is rising. Given the limited safety and efficacy data, we report the experience of this strategy from a large academic center. METHODS AND MATERIALS Between 2012 and 2021, patients who received SBRT for ≥2 thoracic targets separated by ≤1 year were retrospectively reviewed. The primary endpoint was clinically significant radiation pneumonitis (CSRP) requiring steroids, oxygen, or intubation. Secondary endpoints included local failure (LF), initiation or change of systemic therapy (ICST), progression-free survival, and overall survival. Competing risk analysis was used to evaluate the cumulative incidence of CSRP, LF, and ICST. Univariate and multivariable analyses were performed to look for clinical and dosimetric predictive factors of CSRP and LF. RESULTS One hundred ninety patients (481 lesions) were treated with MTT SBRT with a median follow-up of 19.7 months. Indications for SBRT were oligometastases (n = 70; 36.8%), oligoprogression (n = 62; 32.6%), curative intent in patients with primary lung cancer (n = 37; 19.5%), and control of dominant areas of metastatic progression (n = 21; 11.0%). The number of irradiated tumors ranged from 2 to 7 and the majority of SBRT courses were delivered simultaneously (88.2%). Overall, 14 patients (7.4%) had CSRP, with 5 cases requiring oxygen. The cumulative incidence of CSRP at 6 and 12 months was 5.3% and 7.6%, respectively. The cumulative incidence of LF at 2 years was 10.5%. The cumulative incidence of ICST at 2 years was 41.1%. Median progression-free survival was 11.8 months and median overall survival was 51.3 months. On multivariable analysis, a higher lung V35Gy (hazard ratio, 2.59; P = .02) was a statistically significant predictor of CSRP and colorectal histology predicted for higher LF (hazard ratio, 2.12; P = .02). CONCLUSIONS In one of the largest institutional series of MTT SBRT, rates of CSRP and LF were low. Optimizing plans to lower the lung V35Gy may decrease the risk of CSRP.
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Affiliation(s)
- Eric K Nguyen
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Ian Poon
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Yee C Ung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - May Tsao
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Renee Korol
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Alyaa H Elzibak
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Darby Erler
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Liying Zhang
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Patrick Cheung
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
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Sun A, Abdulkarim B, Blais N, Greenland J, Louie AV, Melosky B, Schellenberg D, Snow S, Liu G. Use of radiation therapy among patients with Extensive-stage Small-cell lung cancer receiving Immunotherapy: Canadian consensus recommendations. Lung Cancer 2023; 179:107166. [PMID: 36944282 DOI: 10.1016/j.lungcan.2023.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/23/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
OBJECTIVES Thoracic radiation therapy (TRT) and prophylactic cranial irradiation (PCI) are commonly used in the management of extensive-stage small-cell lung cancer (ES-SCLC); however, Phase III trials of first-line immunotherapy often excluded these options. Guidance is needed regarding appropriate use of TRT, PCI, and magnetic resonance imaging (MRI) surveillance while new data are awaited. MATERIALS AND METHODS In two web-based meetings, a pan-Canadian expert working group of five radiation oncologists and four medical oncologists addressed eight clinical questions regarding use of radiation therapy (RT) and MRI surveillance among patients with ES-SCLC receiving immunotherapy. A targeted literature review was conducted using PubMed and conference proceedings to identify recent (January 2019-April 2022) publications in this setting. Fifteen recommendations were developed; online voting was conducted to gauge agreement with each recommendation. RESULTS After considering recently available evidence across lung cancer populations and clinical experience, the experts recommended that all patients with a response to chemo-immunotherapy, good performance status (PS), and limited metastases be considered for consolidation TRT (e.g., 30 Gy in 10 fractions). When considered appropriate after multidisciplinary team discussion, TRT can be initiated during maintenance immunotherapy. All patients who respond to concurrent chemo-immunotherapy should undergo restaging with brain MRI to guide decision-making regarding PCI versus MRI surveillance alone. MRI surveillance should be conducted for two years after response to initial therapy. PCI (e.g., 25 Gy in 10 fractions or 20 Gy in 5 fractions) can be considered for patients without central nervous system involvement who have a response to chemo-immunotherapy and good PS. Concurrent treatment with PCI and immunotherapy or with TRT, PCI, and immunotherapy is appropriate after completion of initial therapy. All recommendations were agreed upon unanimously. CONCLUSIONS These consensus recommendations provide practical guidance regarding appropriate use of RT and immunotherapy in ES-SCLC while awaiting new clinical trial data.
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Affiliation(s)
- Alexander Sun
- Princess Margaret Cancer Centre, 700 University Avenue, Toronto, ON M5G 1Z5, Canada.
| | - Bassam Abdulkarim
- McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montréal, QC H4A 3J1, Canada.
| | - Normand Blais
- Centre Hospitalier de l'Université de Montréal, University of Montréal, 1051 Rue Sanguinet, Montréal, QC H2X 3E4, Canada.
| | - Jonathan Greenland
- Eastern Health, 300 Prince Philip Drive, St. John's, NL A1B 3V6, Canada.
| | - Alexander V Louie
- Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada.
| | - Barbara Melosky
- BC Cancer-Vancouver Centre, 600 W 10th Avenue, Vancouver, BC V5Z 4E6, Canada.
| | | | - Stephanie Snow
- QEII Health Sciences Centre, Dalhousie University, 5788 University Avenue, Halifax, NS B3H 1V8, Canada.
| | - Geoffrey Liu
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Toronto, ON M5G 2M9, Canada.
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Yan M, Tjong M, Chan WC, Darling G, Delibasic V, Davis LE, Doherty M, Hallet J, Kidane B, Mahar A, Mittmann N, Parmar A, Tan V, Tan H, Wright FC, Coburn NG, Louie AV. Dyspnea in patients with stage IV non-small cell lung cancer: a population-based analysis of disease burden and patterns of care. J Thorac Dis 2023; 15:494-506. [PMID: 36910044 PMCID: PMC9992624 DOI: 10.21037/jtd-22-919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 12/09/2022] [Indexed: 02/23/2023]
Abstract
Background Patients with metastatic non-small cell lung cancer (NSCLC) experience significant morbidity with dyspnea being a common symptom with a prevalence of 70%. The objective of this study was to determine factors associated with a moderate-to-severe dyspnea score based on the Edmonton Symptom Assessment System (ESAS), as well as resultant patterns of intervention and factors correlated to intervention receipt. Methods Using health services administrative data, we conducted a population-based study of all patients diagnosed with metastatic NSCLC treated from January 2007 to September 2018 in the province of Ontario. The primary outcomes of interest are the prevalence of moderate-to-severe dyspnea scores, and the receipt of dyspnea-directed intervention. Differences in baseline characteristic between moderate-to-severe dyspnea and low dyspnea score cohorts were assessed by comparative statistics. Predictors of intervention receipt for patients with moderate-to-severe dyspnea scores were estimated using multivariable modified Poisson regression. Results The initial study cohort included 13,159 patients diagnosed with metastatic NSCLC and of these, 9,434 (71.7%) reported a moderate-to-severe dyspnea score. Compared to patients who did not report moderate-to-severe dyspnea scores, those who reported a moderate-to-severe dyspnea score were more likely to complete a greater number of ESAS surveys, be male, have a higher Elixhauser comorbidity index (ECI) score, and receive subsequent systemic therapy after diagnosis. Most patients with a moderate-to-severe dyspnea score received intervention (96%), of which the most common were palliative care management (87%), thoracic radiotherapy (56%) and thoracentesis (37%). Multivariable regression identified older patients to be less likely to undergo pleurodesis. Thoracentesis was less common for patients living in rural and non-major urban areas, lower income areas, and earlier year of diagnosis. Receipt of thoracic radiotherapy was less common for older patients, females, those with ECI ≥4, patients living in major urban areas, and those with later year of diagnosis. Finally, palliative care referrals were less frequent for patients with ECI ≥4, age 60-69, residence outside of major urban areas, earlier year of diagnosis, and lower income areas. Conclusions Dyspnea is a prevalent symptom amongst patients with metastatic NSCLC. Subpopulations of patients with moderate-to-severe dyspnea scores were in which inequities may exist in access to care that require further attention and evaluation.
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Affiliation(s)
- Michael Yan
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Michael Tjong
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Wing C Chan
- Institute for Clinical Evaluative Sciences (ICES), Toronto, ON, Canada
| | - Gail Darling
- Division of Thoracic Surgery, University of Toronto, Toronto, ON, Canada
| | - Victoria Delibasic
- Department of Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Laura E Davis
- Department of Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Mark Doherty
- Department of Oncology, St. Vincent's Hospital Group, Dublin, Ireland.,Division of Medical Oncology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Julie Hallet
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Biniam Kidane
- Division of Thoracic Surgery, University of Manitoba, Winnipeg, Canada
| | - Alyson Mahar
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Nicole Mittmann
- Canadian Agency for Drugs and Technology in Health, Ottawa, Canada
| | - Ambica Parmar
- Division of Medical Oncology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Vivian Tan
- Department of Radiation Oncology, University of Western Ontario, London, Canada
| | - Hendrick Tan
- Department of Radiation Oncology, Fiona Stanley Hospital, Perth, Australia
| | - Frances C Wright
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Natalie G Coburn
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
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Zeng KL, Poon I, Ung Y, Tsao M, Zhang L, Cumal A, Louie AV, Cheung P. Accelerated Hypofractionated Radiotherapy for Centrally Located Lung Tumours Not Suitable for Stereotactic Body Radiotherapy or Chemoradiotherapy. Clin Oncol (R Coll Radiol) 2023; 35:e173-e181. [PMID: 36470682 DOI: 10.1016/j.clon.2022.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/01/2022] [Accepted: 11/18/2022] [Indexed: 12/04/2022]
Abstract
AIMS Accelerated hypofractionated radiotherapy is used at our institution for non-small cell lung cancer (NSCLC) patients not eligible for stereotactic body radiotherapy or chemoradiotherapy. The purpose of this study was to report clinical outcomes of delivering 60 Gy in 15 fractions for these patients. MATERIALS AND METHODS All NSCLC patients who received 60 Gy in 15 fractions were reviewed. Outcomes of interest were local failure, regional failure, distant progression, overall survival and treatment-associated toxicities. RESULTS In total, 111 patients were included. The median age was 78.8 years and most tumours were adenocarcinoma (n = 55, 49.6%). Sixty-five patients (58.6%) were N0. The cumulative incidence of local failure at 12 and 24 months in the N0 cohort was 5.2% and 14.2%, respectively, compared with 11.5% and 14.8% for N+ patients. Tumour size >35 mm predicted for local failure (hazard ratio 2.706, 95% confidence interval 1.002-7.307, P = 0.0494). Distant progression at 12 and 24 months in N0 patients was 13.7% and 24.3% compared with 24.6% and 33.5% in N+ patients. In N0 patients, larger tumour size was associated with increased risk of distant progression. The median overall survival was 38.1 months in N0 patients versus 31.7 months in N+ patients. The most common toxicity was radiation pneumonitis (n = 6, 6.4%). The incidence of any grade 3 toxicity was 10.3% at ≥1 year. There were no deaths or hospitalisations attributed to treatment. CONCLUSIONS Accelerated hypofractionated radiotherapy is well tolerated and resulted in favourable clinical outcomes in various stages of NSCLC patients.
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Affiliation(s)
- K L Zeng
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - I Poon
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - Y Ung
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - M Tsao
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - L Zhang
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - A Cumal
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - A V Louie
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - P Cheung
- Department of Radiation Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada.
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Fu R, Sutradhar R, Li Q, Hanna TP, Chan KKW, Irish JC, Coburn N, Hallet J, Dare A, Singh S, Parmar A, Earle CC, Lapointe-Shaw L, Krzyzanowska MK, Finelli A, Louie AV, Hong NJL, Witterick IJ, Mahar A, Urbach DR, McIsaac DI, Enepekides D, Tinmouth J, Eskander A. Timeliness and Modality of Treatment for New Cancer Diagnoses During the COVID-19 Pandemic in Canada. JAMA Netw Open 2023; 6:e2250394. [PMID: 36626169 PMCID: PMC9856765 DOI: 10.1001/jamanetworkopen.2022.50394] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
IMPORTANCE The impact of COVID-19 on the modality and timeliness of first-line cancer treatment is unclear yet critical to the planning of subsequent care. OBJECTIVE To explore the association of the COVID-19 pandemic with modalities of and wait times for first cancer treatment. DESIGN, SETTING, AND PARTICIPANTS This retrospective population-based cohort study using administrative data was conducted in Ontario, Canada, among adults newly diagnosed with cancer between January 3, 2016, and November 7, 2020. Participants were followed up from date of diagnosis for 1 year, until death, or until June 26, 2021, whichever occurred first, to ensure a minimum of 6-month follow-up time. EXPOSURES Receiving a cancer diagnosis in the pandemic vs prepandemic period, using March 15, 2020, the date when elective hospital procedures were halted. MAIN OUTCOMES AND MEASURES The main outcome was a time-to-event variable describing number of days from date of diagnosis to date of receiving first cancer treatment (surgery, chemotherapy, or radiation) or to being censored. For each treatment modality, a multivariable competing-risk regression model was used to assess the association between time to treatment and COVID-19 period. A secondary continuous outcome was defined for patients who were treated 6 months after diagnosis as the waiting time from date of diagnosis to date of treatment. RESULTS Among 313 499 patients, the mean (SD) age was 66.4 (14.1) years and 153 679 (49.0%) were male patients. Those who were diagnosed during the pandemic were less likely to receive surgery first (subdistribution hazard ratio [sHR], 0.97; 95% CI, 0.95-0.99) but were more likely to receive chemotherapy (sHR, 1.26; 95% CI, 1.23-1.30) or radiotherapy (sHR, 1.16; 95% CI, 1.13-1.20) first. Among patients who received treatment within 6 months from diagnosis (228 755 [73.0%]), their mean (SD) waiting time decreased from 35.1 (37.2) days to 29.5 (33.6) days for surgery, from 43.7 (34.1) days to 38.4 (30.6) days for chemotherapy, and from 55.8 (41.8) days to 49.0 (40.1) days for radiotherapy. CONCLUSIONS AND RELEVANCE In this cohort study, the pandemic was significantly associated with greater use of nonsurgical therapy as initial cancer treatment. Wait times were shorter in the pandemic period for those treated within 6 months of diagnosis. Future work needs to examine how these changes may have affected patient outcomes to inform future pandemic guideline development.
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Affiliation(s)
- Rui Fu
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Rinku Sutradhar
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Qing Li
- ICES, Toronto, Ontario, Canada
| | - Timothy P. Hanna
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen’s University, Kingston, Ontario, Canada
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Kelvin K. W. Chan
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre–Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Ontario Health–Cancer Care Ontario, Toronto, Ontario, Canada
| | - Jonathan C. Irish
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology–Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Natalie Coburn
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Ontario Health–Cancer Care Ontario, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Julie Hallet
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre–Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Anna Dare
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Simron Singh
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ambica Parmar
- ICES, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Craig C. Earle
- ICES, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lauren Lapointe-Shaw
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Monika K. Krzyzanowska
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Antonio Finelli
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Nicole J. Look Hong
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Ian J. Witterick
- Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
- Ontario Health–Cancer Care Ontario, Toronto, Ontario, Canada
- Department of Otolaryngology–Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Alyson Mahar
- School of Nursing, Queen’s University, Kingston, Ontario, Canada
| | - David R. Urbach
- ICES, Toronto, Ontario, Canada
- Department of Surgery, Women’s College Hospital, Toronto, Ontario, Canada
| | - Daniel I. McIsaac
- ICES, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Danny Enepekides
- Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jill Tinmouth
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Odette Cancer Centre–Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Ontario Health–Cancer Care Ontario, Toronto, Ontario, Canada
| | - Antoine Eskander
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
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Mak DY, Tjong MC, Louie AV. Usage of Radiotherapy With Osimertinib Plus Bevacizumab Versus Osimertinib for Untreated Patients With Nonsquamous NSCLC Harboring EGFR Mutations. J Thorac Oncol 2023; 18:e3-e4. [PMID: 36543437 DOI: 10.1016/j.jtho.2022.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 12/23/2022]
Affiliation(s)
- David Y Mak
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Michael C Tjong
- Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
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Siva S, Ali M, Correa RJM, Muacevic A, Ponsky L, Ellis RJ, Lo SS, Onishi H, Swaminath A, McLaughlin M, Morgan SC, Cury FL, Teh BS, Mahadevan A, Kaplan ID, Chu W, Grubb W, Hannan R, Staehler M, Warner A, Louie AV. 5-year outcomes after stereotactic ablative body radiotherapy for primary renal cell carcinoma: an individual patient data meta-analysis from IROCK (the International Radiosurgery Consortium of the Kidney). Lancet Oncol 2022; 23:1508-1516. [PMID: 36400098 DOI: 10.1016/s1470-2045(22)00656-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Stereotactic ablative body radiotherapy (SABR) is a non-invasive treatment option for primary renal cell carcinoma, for which long-term data are awaited. The primary aim of this study was to report on long-term efficacy and safety of SABR for localised renal cell carcinoma. METHODS This study was an individual patient data meta-analysis, for which patients undergoing SABR for primary renal cell carcinoma across 12 institutions in five countries (Australia, Canada, Germany, Japan, and the USA) were eligible. Eligible patients had at least 2 years of follow-up, were aged 18 years or older, had any performance status, and had no previous local therapy. Patients with metastatic renal cell carcinoma or upper-tract urothelial carcinoma were excluded. SABR was delivered as a single or multiple fractions of greater than 5 Gy. The primary endpoint was investigator-assessed local failure per the Response Evaluation Criteria in Solid Tumours version 1.1, and was evaluated using cumulative incidence functions. FINDINGS 190 patients received SABR between March 23, 2007, and Sept 20, 2018. Single-fraction SABR was delivered in 81 (43%) patients and multifraction SABR was delivered in 109 (57%) patients. Median follow-up was 5·0 years (IQR 3·4-6·8). 139 (73%) patients were men, and 51 (27%) were women. Median age was 73·6 years (IQR 66·2-82·0). Median tumour diameter was 4·0 cm (IQR 2·8-4·9). 96 (75%) of 128 patients with available operability details were deemed inoperable by the referring urologist. 56 (29%) of 190 patients had a solitary kidney. Median baseline estimated glomerular filtration rate (eGFR) was 60·0 mL/min per 1·73 m2 (IQR 42·0-76·0) and decreased by 14·2 mL/min per 1·73 m2 (IQR 5·4-22·5) by 5 years post-SABR. Seven (4%) patients required dialysis post-SABR. The cumulative incidence of local failure at 5 years was 5·5% (95% CI 2·8-9·5) overall, with single-fraction SABR yielding fewer local failures than multifraction (Gray's p=0·020). There were no grade 3 toxic effects or treatment-related deaths. One (1%) patient developed an acute grade 4 duodenal ulcer and late grade 4 gastritis. INTERPRETATION SABR is effective and safe in the long term for patients with primary renal cell carcinoma. Single-fraction SABR might yield less local failure than multifraction, but further evidence from randomised trials is needed to elucidate optimal treatment schedules. These mature data lend further support for renal SABR as a treatment option for patients unwilling or unfit to undergo surgery. FUNDING None.
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Affiliation(s)
- Shankar Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, Australia.
| | - Muhammad Ali
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, Australia
| | - Rohann J M Correa
- Department of Radiation Oncology, London Regional Cancer Program, London, ON, Canada
| | - Alexander Muacevic
- European Radiosurgery Center Munich, University of Munich Hospitals, Munich, Germany
| | - Lee Ponsky
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | | | - Simon S Lo
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA, USA
| | - Hiroshi Onishi
- Department of Radiology, University of Yamanashi, Yamanashi, Japan
| | - Anand Swaminath
- Department of Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - Mark McLaughlin
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Scott C Morgan
- Department of Radiology, Radiation Oncology and Medical Physics, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
| | - Fabio L Cury
- Division of Radiation Oncology, Department of Oncology, McGill University Health Centre, Montreal, QC, Canada
| | - Bin S Teh
- Department of Radiation Oncology, Houston Methodist Hospital, Cancer Center and Research Institute, Houston, TX, USA
| | - Anand Mahadevan
- Department of Radiation Oncology, Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Irving D Kaplan
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - William Chu
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - William Grubb
- Department of Radiation Oncology, Augusta University, Augusta, GA, USA
| | - Raquibul Hannan
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Michael Staehler
- Department of Urology, University of Munich Hospitals, Munich, Germany
| | - Andrew Warner
- Department of Radiation Oncology, London Regional Cancer Program, London, ON, Canada
| | - Alexander V Louie
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
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46
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Fu R, Sutradhar R, Li Q, Hanna TP, Chan KKW, Irish JC, Coburn N, Hallet J, Dare A, Singh S, Parmar A, Earle CC, Lapointe-Shaw L, Krzyzanowska MK, Finelli A, Louie AV, Look Hong NJ, Witterick IJ, Mahar A, Gomez D, McIsaac DI, Enepekides D, Urbach DR, Eskander A. Incident Cancer Detection During Multiple Waves of COVID-19: The Tsunami After the Earthquake. J Natl Compr Canc Netw 2022; 20:1190-1192. [PMID: 36351330 DOI: 10.6004/jnccn.2022.7075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/15/2022] [Indexed: 11/11/2022]
Abstract
No population-based study exists to demonstrate the full-spectrum impact of COVID-19 on hindering incident cancer detection in a large cancer system. Building upon our previous publication in JNCCN, we conducted an updated analysis using 12 months of new data accrued in the pandemic era (extending the study period from September 26, 2020, to October 2, 2021) to demonstrate how multiple COVID-19 waves affected the weekly cancer incidence volume in Ontario, Canada, and if we have fully cleared the backlog at the end of each wave.
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Affiliation(s)
- Rui Fu
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 3Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto
| | - Rinku Sutradhar
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
| | | | - Timothy P Hanna
- 4Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston
- 5Ontario Institute for Cancer Research (OICR), Toronto
| | - Kelvin K W Chan
- 6Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto
- 7Ontario Health-Cancer Care Ontario, Toronto
| | - Jonathan C Irish
- 2Institute of Health Policy, Management, and Evaluation, and
- 8Department of Otolaryngology-Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto
| | - Natalie Coburn
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 7Ontario Health-Cancer Care Ontario, Toronto
- 9Department of Surgery
| | - Julie Hallet
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 6Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto
- 9Department of Surgery
| | - Anna Dare
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 9Department of Surgery
| | - Simron Singh
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 10Department of Medicine, and
| | - Ambica Parmar
- 1ICES, Toronto, Ontario
- 10Department of Medicine, and
| | - Craig C Earle
- 1ICES, Toronto, Ontario
- 10Department of Medicine, and
| | - Lauren Lapointe-Shaw
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 10Department of Medicine, and
| | - Monika K Krzyzanowska
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 10Department of Medicine, and
| | - Antonio Finelli
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 9Department of Surgery
| | | | - Nicole J Look Hong
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 9Department of Surgery
| | - Ian J Witterick
- 3Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto
- 7Ontario Health-Cancer Care Ontario, Toronto
- 8Department of Otolaryngology-Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto
| | - Alyson Mahar
- 12School of Nursing, Queen's University, Kingston
| | - David Gomez
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 9Department of Surgery
- 13Division of General Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto
| | - Daniel I McIsaac
- 1ICES, Toronto, Ontario
- 14Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa; and
| | - Danny Enepekides
- 3Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto
| | - David R Urbach
- 1ICES, Toronto, Ontario
- 15Department of Surgery, Women's College Hospital, Toronto, Ontario, Canada
| | - Antoine Eskander
- 1ICES, Toronto, Ontario
- 2Institute of Health Policy, Management, and Evaluation, and
- 3Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto
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47
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Fu R, Sutradhar R, Dare A, Li Q, Hanna TP, Chan KKW, Irish JC, Coburn N, Hallet J, Singh S, Parmar A, Earle CC, Lapointe-Shaw L, Krzyzanowska MK, Finelli A, Louie AV, Witterick IJ, Mahar A, Urbach DR, McIsaac DI, Enepekides D, Look Hong NJ, Eskander A. Cancer Patients First Treated with Chemotherapy: Are They More Likely to Receive Surgery in the Pandemic? Curr Oncol 2022; 29:7732-7744. [PMID: 36290888 PMCID: PMC9600641 DOI: 10.3390/curroncol29100611] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022] Open
Abstract
Due to the ramping down of cancer surgery in early pandemic, many newly diagnosed patients received other treatments first. We aimed to quantify the pandemic-related shift in rate of surgery following chemotherapy. This is a retrospective population-based cohort study involving adults diagnosed with cancer between 3 January 2016 and 7 November 2020 in Ontario, Canada who received chemotherapy as first treatment within 6-months of diagnosis. Competing-risks regression models with interaction effects were used to quantify the association between COVID-19 period (receiving a cancer diagnosis before or on/after 15 March 2020) and receipt of surgical reSection 9-months after first chemotherapy. Among 51,653 patients, 8.5% (n = 19,558) of them ultimately underwent surgery 9-months after chemotherapy initiation. Receipt of surgery was higher during the pandemic than before (sHR 1.07, 95% CI 1.02-1.13). Material deprivation was independently associated with lower receipt of surgery (least vs. most deprived quintile: sHR 1.11, 95% CI 1.04-1.17), but did not change with the pandemic. The surgical rate increase was most pronounced for breast cancer (sHR 1.13, 95% CI 1.06-1.20). These pandemic-related shifts in cancer treatment requires further evaluations to understand the long-term consequences. Persistent material deprivation-related inequity in cancer surgical access needs to be addressed.
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Affiliation(s)
- Rui Fu
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, ON M5G 1X5, Canada
| | - Rinku Sutradhar
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
| | - Anna Dare
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
| | - Qing Li
- ICES, Toronto, ON M4N 3M5, Canada
| | - Timothy P. Hanna
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen’s University, Kingston, ON K7L 3N6, Canada
- Ontario Institute for Cancer Research (OICR), Toronto, ON M5G 0A3, Canada
| | - Kelvin K. W. Chan
- Odette Cancer Centre—Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Ontario Health—Cancer Care Ontario, Toronto, ON M5G 2L7, Canada
| | - Jonathan C. Irish
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Otolaryngology—Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON M5G 1X5, Canada
| | - Natalie Coburn
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
- Ontario Health—Cancer Care Ontario, Toronto, ON M5G 2L7, Canada
| | - Julie Hallet
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
- Odette Cancer Centre—Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Simron Singh
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Ambica Parmar
- ICES, Toronto, ON M4N 3M5, Canada
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Craig C. Earle
- ICES, Toronto, ON M4N 3M5, Canada
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Lauren Lapointe-Shaw
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Monika K. Krzyzanowska
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Antonio Finelli
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, University of Toronto, Toronto, ON M5T 1P5, Canada
| | - Ian J. Witterick
- Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, ON M5G 1X5, Canada
- Odette Cancer Centre—Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Ontario Health—Cancer Care Ontario, Toronto, ON M5G 2L7, Canada
| | - Alyson Mahar
- School of Nursing, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - David R. Urbach
- ICES, Toronto, ON M4N 3M5, Canada
- Department of Surgery, Women’s College Hospital, Toronto, ON M5S 1B2, Canada
| | - Daniel I. McIsaac
- ICES, Toronto, ON M4N 3M5, Canada
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, ON K1Y 4E9, Canada
| | - Danny Enepekides
- Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, ON M5G 1X5, Canada
| | - Nicole J. Look Hong
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
| | - Antoine Eskander
- ICES, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
- Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, ON M5G 1X5, Canada
- Correspondence: ; Tel.: +1-416-480-6705
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48
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Correa R, Siva S, Muhammad A, Muacevic A, Ponsky L, Ellis R, Lo SS, Onishi H, Swaminath A, Mclaughlin M, Morgan S, Cury F, Teh BS, Mahadevan A, Kaplan I, Chu W, Hannan R, Staehler M, Warner A, Louie AV. 44: Long-Term Outcomes of SABR to Primary Renal Cell Carcinoma: A Multi-Centre Analysis from the International Radiosurgery Oncology Consortium for Kidney (IROCK). Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)04323-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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49
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Safavi AH, Louie AV, Boldt RG, Bruynzeel AM, Lagerwaard FJ, Senan S, Chen H. 108: Early Clinical Effectiveness, Toxicity, and Quality of Life Outcomes of Magnetic Resonance Imaging-Guided Stereotactic Ablative Radiotherapy: A Systematic Review. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)04387-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Safavi AH, Bryson E, Delibasic V, Wright FC, Parmar A, Coburn N, Louie AV. 114: Perspectives of Patients with Metastatic Lung Cancer on Symptom Screening and Utilization of Patient-Reported Outcomes Data for Patient Education. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)04393-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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