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Yang J, Xiong X, Liao X, Zheng W, Xu H, Wei Q, Yang L. Nonsurgical salvage options for locally recurrent prostate cancer after primary definitive radiotherapy: a systematic review and meta-analysis. Int J Surg 2024; 110:3008-3020. [PMID: 38348896 DOI: 10.1097/js9.0000000000001164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/26/2024] [Indexed: 05/16/2024]
Abstract
OBJECTIVE To conduct a meta-analysis to provide the latest evidence of nonsurgical local salvage options in the first-line radiotherapy (RT) failure setting for localized prostate cancer patients. BACKGROUND Recurrence of localized prostate cancer after primary RT remains a clinical challenge. There is no consensus on optimal nonsurgical local salvage therapies, which mainly consist of cryotherapy (CRYO), high-intensity focused ultrasound (HIFU), high/low-dose-rate brachytherapy (HDR/LDR), and stereotactic body radiotherapy (SBRT). METHODS Our study was performed following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. The authors systematically searched PubMed, Web of Science, Cochrane Library, and ClinicalTrials.gov up to September 2023 to identify potentially relevant studies. The risk of bias was assessed using the European Association of Urology (EAU) items. Biochemical recurrence-free survival (bRFS) and genitourinary/gastrointestinal toxicities were the outcomes of interest. Pooled rates with 95% CIs were evaluated. RESULTS A total of 99 studies comprising 8440 patients were included. The pooled rate of 1-year biochemical control (BC) was highest for LDR (0.88, 95% CI: 0.72-0.95) and lowest for SBRT (0.68, 95% CI: 0.49-0.83). The pooled rate of 5-year BC was highest for CRYO (0.52, 95% CI: 0.33-0.69) and lowest for HDR (0.23, 95% CI: 0.08-0.51). HIFU presented the worst outcome of grade ≥3 genitourinary toxicities (GU3), with a rate of 0.22 (95% CI: 0.12-0.3). Conversely, CRYO (0.09, 95% CI: 0.04-0.14), HDR (0.05, 95% CI: 0.02-0.07), LDR (0.10, 95% CI: 0.06-0.14), and SBRT (0.06, 95% CI: 0.03-0.09) presented low rates of GU3. All subgroups induced a quite low incidence of grade ≥3 gastrointestinal toxicities (GI3). CONCLUSIONS Nonsurgical salvage therapies are promising modalities for prostate cancer in the local radiorecurrence setting. Based on the preliminary evidence from this study, CRYO and SBRT might present a relatively steady efficacy of BC with acceptable treatment-related toxicities.
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Affiliation(s)
- Jie Yang
- Department of Urology, Institute of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
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Sritharan K, Daamen L, Pathmanathan A, Schytte T, Pos F, Choudhury A, van der Voort van Zyp JR, Kerkmeijer LG, Hall W, Hall E, Verkooijen HM, Herbert T, Hafeez S, Mitchell A, Tree AC. MRI-guided radiotherapy in twenty fractions for localised prostate cancer; results from the MOMENTUM study. Clin Transl Radiat Oncol 2024; 46:100742. [PMID: 38440792 PMCID: PMC10909700 DOI: 10.1016/j.ctro.2024.100742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/30/2024] [Accepted: 02/03/2024] [Indexed: 03/06/2024] Open
Abstract
Background and purpose MRI-guided radiotherapy (MRIgRT) offers multiple potential advantages over CT-guidance. This study examines the potential clinical benefits of MRIgRT for men with localised prostate cancer, in the setting of moderately hypofractionated radiotherapy. We evaluate two-year toxicity outcomes, early biochemical response and patient-reported outcomes (PRO), using data obtained from a multicentre international registry study, for the first group of patients with prostate cancer who underwent treatment on a 1.5 T MR-Linac. Materials and methods Patients who were enrolled within the MOMENTUM study and received radical treatment with 60 Gy in 20 fractions were identified. PSA levels and CTCAE version 5.0 toxicity data were measured at follow-up visits. Those patients who consented to PRO data collection also completed EQ-5D-5L, EORTC QLQ-C30 and EORTC QLQ-PR25 questionnaires. Results Between November 2018 and June 2022, 146 patients who had MRIgRT for localised prostate cancer on the 1.5 T MR-Linac were eligible for this study. Grade 2 and worse gastro-intestinal (GI) toxicity was reported in 3 % of patients at three months whilst grade 2 and worse genitourinary (GU) toxicity was 7 % at three months. There was a significant decrease in the median PSA at 12 months. The results from both the EQ-5D-5L data and EORTC global health status scale indicate a decline in the quality of life (QoL) during the first six months. The mean change in score for the EORTC scale showed a decrease of 11.4 points, which is considered clinically important. QoL improved back to baseline by 24 months. Worsening of hormonal symptoms in the first six months was reported with a return to baseline by 24 months and sexual activity in all men worsened in the first three months and returned to baseline at 12 months. Conclusion This study establishes the feasibility of online-MRIgRT for localised prostate on a 1.5 T MR-Linac with low rates of toxicity, similar to that published in the literature. However, the clinical benefits of MRIgRT over conventional radiotherapy in the setting of moderate hypofractionation is not evident. Further research will focus on the delivery of ultrahypofractionated regimens, where the potential advantages of MRIgRT for prostate cancer may become more discernible.
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Affiliation(s)
- Kobika Sritharan
- The Royal Marsden NHS Foundation Trust, UK
- The Institute of Cancer Research, UK
| | - Lois Daamen
- Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | - Floris Pos
- The Netherlands Cancer Institute, The Netherlands
| | - Ananya Choudhury
- Division of Cancer Sciences, University of Manchester and The Christie NHS Foundation Trust, UK
| | | | | | | | - Emma Hall
- The Institute of Cancer Research, UK
| | - Helena M. Verkooijen
- Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | - Adam Mitchell
- The Royal Marsden NHS Foundation Trust, UK
- The Institute of Cancer Research, UK
| | - Alison C. Tree
- The Royal Marsden NHS Foundation Trust, UK
- The Institute of Cancer Research, UK
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Moll M, Goldner G. Assessing the toxicity after moderately hypofractionated prostate and whole pelvis radiotherapy compared to conventional fractionation. Strahlenther Onkol 2024; 200:188-194. [PMID: 37341774 PMCID: PMC10876811 DOI: 10.1007/s00066-023-02104-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/19/2023] [Indexed: 06/22/2023]
Abstract
OBJECTIVE To evaluate acute and late gastrointestinal (GI) and genitourinary (GU) toxicities after moderately hypofractionated (HF) or conventionally fractionated (CF) primary whole-pelvis radiotherapy (WPRT). METHODS Primary prostate-cancer patients treated between 2009 and 2021 with either 60 Gy at 3 Gy/fraction to the prostate and 46 Gy at 2.3 Gy/fraction to the whole pelvis (HF), or 78 Gy at 2 Gy/fraction to the prostate and 50/50.4 Gy at 1.8-2 Gy/fraction to the whole pelvis (CF). Acute and late GI and GU toxicities were retrospectively assessed. RESULTS 106 patients received HF and 157 received CF, with a median follow-up of 12 and 57 months. Acute GI toxicity rates in the HF and CF groups were, respectively, grade 2: 46.7% vs. 37.6%, and grade 3: 0% vs. 1.3%, with no significant difference (p = 0.71). Acute GU toxicity rates were, respectively, grade 2: 20.0% vs. 31.8%, and grade 3: 2.9% vs. 0%, (p = 0.04). We compared prevalence of late GI and GU toxicities between groups after 3, 12, and 24 months and did not find any significant differences (respectively, p = 0.59, 0.22, and 0.71 for GI toxicity; p = 0.39, 0.58, and 0.90 for GU toxicity). CONCLUSION Moderate HF WPRT was well tolerated during the first 2 years. Randomized trials are needed to confirm these findings.
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Affiliation(s)
- Matthias Moll
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Währinger Gürtel 18-20, A-1090, Vienna, Austria.
| | - Gregor Goldner
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Währinger Gürtel 18-20, A-1090, Vienna, Austria
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Costa P, Vale J, Fonseca G, Costa A, Kos M. Use of rectal balloon spacer in patients with localized prostate cancer receiving external beam radiotherapy. Tech Innov Patient Support Radiat Oncol 2024; 29:100237. [PMID: 38322778 PMCID: PMC10846399 DOI: 10.1016/j.tipsro.2024.100237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 02/08/2024] Open
Abstract
Objective To evaluate the efficacy of the balloon spacer when used to reduce the radiation dose delivered to the rectum in prostate cancer patients undergoing external beam radiotherapy. Method A single center retrospective analysis including 75 PC patients with localized T1-T3a disease who received balloon spacer followed by EBRT. Pre- and post-implantation computed tomography (CT) scans were utilized for treatment planning for standard EBRT (78-81 Gy in 1.8-2 Gy fractions). Rectal dosimetry was assessed using DVHs, and toxicities were graded with CTCAE v.4. Results A median (IQR) prostate-rectum separation resulted in 1.6 cm (1.4-2.0) post balloon spacer implantation. Overall, 90.6 % (68/75) of patients had a clinically significant 25 % relative reduction in the rectal with a median relative reduction of 91.8 % (71.2-98.6 %) at rV70. Three (4.0 %) patients reported mild procedural adverse events, anal discomfort and dysuria. Within 90 days post-implantation, five patients (6.67 %) and 1 patient (1.33 %) reported grade 1 and grade 2 rectal toxicities (anal pain, constipation, diarrhea and hemorrhoids). Genitourinary (GU) grade 1 toxicity was reported in 37 patients (49.33 %), with only one patient (1.33 %) experiencing grade 2 GU toxicity. No grade ≥ 3 toxicity was reported. Conclusion Balloon spacer implantation effectively increased prostate-rectum separation and associated with dosimetric gains EBRT for PC stage T1-T3a. Further controlled studies are required to ascertain whether this spacer allows for radiotherapy dose escalation and minimizes gastrointestinal (GI) toxicity.
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Affiliation(s)
- Paulo Costa
- CUF Porto Instituto, Rua Fonte das Sete Bicas, 170 - Piso -1 – 4460-188 SENHORA DA HORA, Porto Portugal
| | - Joana Vale
- CUF Porto Instituto, Rua Fonte das Sete Bicas, 170 - Piso -1 – 4460-188 SENHORA DA HORA, Porto Portugal
| | - Graça Fonseca
- CUF Porto Instituto, Rua Fonte das Sete Bicas, 170 - Piso -1 – 4460-188 SENHORA DA HORA, Porto Portugal
| | - Adelina Costa
- CUF Porto Instituto, Rua Fonte das Sete Bicas, 170 - Piso -1 – 4460-188 SENHORA DA HORA, Porto Portugal
| | - Michael Kos
- Brachytherapy Radiation Specialists Summit Cancer, 6506 Regal Ct., Reno, NV 99223, USA
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Vieceli M, Park J, Hsi WC, Saki M, Mendenhall NP, Johnson P, Artz M. Potential Therapeutic Improvements in Prostate Cancer Treatment Using Pencil Beam Scanning Proton Therapy with LET d Optimization and Disease-Specific RBE Models. Cancers (Basel) 2024; 16:780. [PMID: 38398171 PMCID: PMC10886728 DOI: 10.3390/cancers16040780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
PURPOSE To demonstrate the feasibility of improving prostate cancer patient outcomes with PBS proton LETd optimization. METHODS SFO, IPT-SIB, and LET-optimized plans were created for 12 patients, and generalized-tissue and disease-specific LET-dependent RBE models were applied. The mean LETd in several structures was determined and used to calculate mean RBEs. LETd- and dose-volume histograms (LVHs/DVHs) are shown. TODRs were defined based on clinical dose goals and compared between plans. The impact of robust perturbations on LETd, TODRs, and DVH spread was evaluated. RESULTS LETd optimization achieved statistically significant increased target volume LETd of ~4 keV/µm compared to SFO and IPT-SIB LETd of ~2 keV/µm while mitigating OAR LETd increases. A disease-specific RBE model predicted target volume RBEs > 1.5 for LET-optimized plans, up to 18% higher than for SFO plans. LET-optimized target LVHs/DVHs showed a large increase not present in OARs. All RBE models showed a statistically significant increase in TODRs from SFO to IPT-SIB to LET-optimized plans. RBE = 1.1 does not accurately represent TODRs when using LETd optimization. Robust evaluations demonstrated a trade-off between increased mean target LETd and decreased DVH spread. CONCLUSION The demonstration of improved TODRs provided via LETd optimization shows potential for improved patient outcomes.
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Affiliation(s)
- Michael Vieceli
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Medical Physics Graduate Program, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Jiyeon Park
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Wen Chien Hsi
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Mo Saki
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Nancy P Mendenhall
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Perry Johnson
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Mark Artz
- University of Florida Health Proton Therapy Institute, Jacksonville, FL 32206, USA
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL 32610, USA
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Hu W, Zhang Z, Xue Y, Ning R, Guo X, Sun Y, Zhang Q. Carbon ion irradiation exerts antitumor activity by inducing cGAS-STING activation and immune response in prostate cancer-bearing mice. Cancer Med 2024; 13:e6950. [PMID: 38379323 PMCID: PMC10832322 DOI: 10.1002/cam4.6950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/01/2024] [Accepted: 01/10/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND AND PURPOSE As an advanced radiotherapy technique, carbon ion radiotherapy has demonstrated good efficacy and low toxicity for prostate cancer patients, but the radiobiological mechanism of killing tumor cells has not been fully elucidated. This study aims to explore the antitumor effects of carbon ion irradiation (CIR) through investigating the immune response induced by CIR in prostate cancer-bearing mice and the underlying molecular mechanism. MATERIALS AND METHODS We established subcutaneous transplantation tumor models of prostate cancer to evaluate the tumor inhibition effect of CIR. Investigation of immunophenotype alterations were assessed by flow cytometry. Immunofluorescence, western blot, and real-time quantitative PCR was employed to analyze the activation of cGAS-STING pathway. RESULTS CIR showed more powerful tumor growth control than photon irradiation in immunocompetent syngeneic C57BL/6 mice. CIR exerts antitumor effect by triggering immune response, characterized by increased CD4+ T cells and macrophages in tumor, enhanced CD8+ T cells and T effector memory cells in spleen, improved IFN-γ production of CD8+ tumor-infiltrating lymphocytes, and reduced exhausted T cells in tumor and spleen. Additionally, production of cytoplasmic double-stranded DNA, protein levels of p-TBK1 and p-IRF3 in the cGAS-STING pathway, and gene expression levels of downstream interferon-stimulated genes were significantly increased after CIR in a dose-dependent manner. Treatment of RM1 tumor-bearing mice with the STING inhibitor C-176 impaired the antitumor effect of CIR. CONCLUSION The excellent antitumor activity of CIR in immunocompetent prostate cancer-bearing C57BL/6 mice may be attributed to stronger induction of antitumor immune response and higher activation of cGAS-STING pathway.
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Affiliation(s)
- Wei Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Zhenshan Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Yushan Xue
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Renli Ning
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Xiaomao Guo
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Yun Sun
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Qing Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
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Hebert K, Bruno A, Matta R, Horns J, Paudel N, Das R, Hotaling J, McCormick B, Myers JB. Impact of Prostate Cancer-related Genitourinary Radiation Injury on Mental Health Diagnosis and Treatment: Assessment of 55,425 Men. Urology 2024; 183:228-235. [PMID: 37838002 DOI: 10.1016/j.urology.2023.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/16/2023]
Abstract
OBJECTIVE To investigate the association of low-grade radiation injury (LGRI) and high-grade radiation injury (HGRI) following prostate cancer treatment with mental health diagnoses and therapy. METHODS A retrospective study of men diagnosed with prostate cancer who were treated with radiotherapy. Men were followed to assess for LGRI or HGRI using IBM MarketScan. Cohorts included: no injury (no-RI), LGRI, HGRI, and controls. Mental health diagnoses and related treatment (medication/therapy) were identified using ICD-10 codes, CPT codes, and national drug codes. A multivariable Cox proportional hazards model from time of radiation to first instance of mental health diagnosis was modeled against injury group, age, and comorbidities. RESULTS Between 2011 and 2020 we identified 55,425 men who received radiotherapy for prostate cancer. 22,879 (41.3%) experienced a LGRI while 4128 (7.4%) experienced a HGRI. Prior to radiation therapy, mental health diagnoses were equally distributed across cohorts (P > .05). Every marker of mental health showed a step-wise increase in incidence from no-RI to LGRI to HGRI except for alcohol abuse. Use of mental health medications and therapy visits were slightly more likely in the LGRI and HGRI groups prior to radiation, however, this difference was greatly increased postradiation therapy. LGRI (HR 1.38; P < .001) and HGRI (HR 2.1; P < .001) were independently associated with an increased likelihood of mental health diagnoses. CONCLUSION LGRI and HGRI following prostate cancer radiotherapy are associated with increased risk of mental health diagnosis, medication use, and therapy need compared to men who do not develop injuries. The most common mental health diagnoses were depression and anxiety.
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Affiliation(s)
- Kevin Hebert
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, UT.
| | - Ann Bruno
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT
| | - Rano Matta
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, UT
| | - Joshua Horns
- Surgical Population Analysis Research Core, University of Utah, Salt Lake City, UT
| | - Niraj Paudel
- Surgical Population Analysis Research Core, University of Utah, Salt Lake City, UT
| | - Rupam Das
- Surgical Population Analysis Research Core, University of Utah, Salt Lake City, UT
| | - James Hotaling
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, UT
| | - Benjamin McCormick
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, UT
| | - Jeremy B Myers
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, UT
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Houlihan OA, Redmond K, Fairmichael C, Lyons CA, McGarry CK, Mitchell D, Cole A, O'Connor J, McMahon S, Irvine D, Hyland W, Hanna M, Prise KM, Hounsell AR, O'Sullivan JM, Jain S. A Randomized Feasibility Trial of Stereotactic Prostate Radiation Therapy With or Without Elective Nodal Irradiation in High-Risk Localized Prostate Cancer (SPORT Trial). Int J Radiat Oncol Biol Phys 2023; 117:594-609. [PMID: 36893820 DOI: 10.1016/j.ijrobp.2023.02.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/06/2023] [Accepted: 02/25/2023] [Indexed: 03/11/2023]
Abstract
PURPOSE The aim of this study was to establish the feasibility of a randomized clinical trial comparing SABR with prostate-only (P-SABR) or with prostate plus pelvic lymph nodes (PPN-SABR) in patients with unfavorable intermediate- or high-risk localized prostate cancer and to explore potential toxicity biomarkers. METHODS AND MATERIALS Thirty adult men with at least 1 of the following features were randomized 1:1 to P-SABR or PPN-SABR: clinical magnetic resonance imaging stage T3a N0 M0, Gleason score ≥7 (4+3), and prostate-specific antigen >20 ng/mL. P-SABR patients received 36.25 Gy/5 fractions/29 days, and PPN-SABR patients received 25 Gy/5 fractions to pelvic nodes, with the final cohort receiving a boost to the dominant intraprostatic lesion of 45 to 50 Gy. Phosphorylated gamma-H2AX (γH2AX) foci numbers, citrulline levels, and circulating lymphocyte counts were quantified. Acute toxicity information (Common Terminology Criteria for Adverse Events, version 4.03) was collected weekly at each treatment and at 6 weeks and 3 months. Physician-reported late Radiation Therapy Oncology Group (RTOG) toxicity was recorded from 90 days to 36 months postcompletion of SABR. Patient-reported quality of life (Expanded Prostate Cancer Index Composite and International Prostate Symptom Score) scores were recorded with each toxicity time point. RESULTS The target recruitment was achieved, and treatment was successfully delivered in all patients. A total of 0% and 6.7% (P-SABR) and 6.7% and 20.0% (PPN-SABR) experienced acute grade ≥2 gastrointestinal (GI) and genitourinary (GU) toxicity, respectively. At 3 years, 6.7% and 6.7% (P-SABR) and 13.3% and 33.3% (PPN-SABR) had experienced late grade ≥2 GI and GU toxicity, respectively. One patient (PPN-SABR) had late grade 3 GU toxicity (cystitis and hematuria). No other grade ≥3 toxicity was observed. In addition, 33.3% and 60% (P-SABR) and 64.3% and 92.9% (PPN-SABR) experienced a minimally clinically important change in late Expanded Prostate Cancer Index Composite bowel and urinary summary scores, respectively. γH2AX foci numbers at 1 hour after the first fraction were significantly higher in the PPN-SABR arm compared with the P-SABR arm (P = .04). Patients with late grade ≥1 GI toxicity had significantly greater falls in circulating lymphocytes (12 weeks post-radiation therapy, P = .01) and a trend toward higher γH2AX foci numbers (P = .09) than patients with no late toxicity. Patients with late grade ≥1 bowel toxicity and late diarrhea experienced greater falls in citrulline levels (P = .05). CONCLUSIONS A randomized trial comparing P-SABR with PPN-SABR is feasible with acceptable toxicity. Correlations of γH2AX foci, lymphocyte counts, and citrulline levels with irradiated volume and toxicity suggest potential as predictive biomarkers. This study has informed a multicenter, randomized, phase 3 clinical trial in the United Kingdom.
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Affiliation(s)
- Orla A Houlihan
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland; Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland.
| | - Kelly Redmond
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Ciaran Fairmichael
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland; Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Ciara A Lyons
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland; Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Conor K McGarry
- Department of Radiotherapy Medical Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Darren Mitchell
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Aidan Cole
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - John O'Connor
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Stephen McMahon
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Denise Irvine
- Department of Radiotherapy Medical Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Wendy Hyland
- Department of Radiotherapy Medical Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Michael Hanna
- Northern Ireland Cancer Trials Network, Belfast City Hospital, Belfast, Northern Ireland
| | - Kevin M Prise
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
| | - Alan R Hounsell
- Department of Radiotherapy Medical Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Joe M O'Sullivan
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Suneil Jain
- Department of Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, Northern Ireland; Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland
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Takayesu JSK, Heckman P, Short E, Hurley P, Narayana V, McLaughlin PW. Quality rectal hydrogel placement allows for gel-enabled dose-escalated EBRT (GEDE-EBRT) without rectal interference in prostate cancer. Med Dosim 2023; 48:286-292. [PMID: 37666707 DOI: 10.1016/j.meddos.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/29/2023] [Accepted: 07/31/2023] [Indexed: 09/06/2023]
Abstract
Multiple trials have shown that dose-escalation of radiation for prostate cancer provides a biochemical progression-free survival benefit (bPFS); however, rectal constraints are often limiting. In this dosimetric study, we hypothesized that a well-placed rectal hydrogel (RH) would permit improved dose-escalation and target coverage. We selected patients with good-quality RH and created plans with and without RH, prescribing 70 Gy in 28 fractions to the prostate and proximal seminal vesicles (PSV), and a peripheral zone (PZ) boost to 84 Gy, 98 Gy, or 112 Gy. We then compared plans with and without RH, prescribing a 112 Gy boost to 1 to 2 cm simulated dominant intraprostatic lesions (DIL). In the 18 plans created with a PZ boost, the PTV_boost D95% was higher in RH plans compared to non-RH plans (median 98.5 Gy vs 75.53 Gy, p < 0.01). The PSV planning target volume (PTV_PSV) D95% was also marginally higher with RH (71.87 Gy vs 71.04 Gy, p < 0.01). All rectal metrics were improved with RH. For the 32 plans created for simulated DILs treated to 112 Gy, the PTV_boost coverage (median D95% 112.48 Gy vs 102.63 Gy, p < 0.01) and rectal metrics were improved with RH. Four non-RH plans with at least a 4 mm rectal-PTV_boost gap achieved D95% > 98% of the prescription dose for the PTV_boost. Our study showed that placement of a high-quality RH allowed for GEDE-EBRT up to 112 Gy in 28 fractions (EQD2 160 Gy with α/β = 2.5). This concept should be tested prospectively, particularly to assess for increases in nonrectal toxicities.
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Affiliation(s)
- Jamie S K Takayesu
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.
| | - Paul Heckman
- Department of Radiation Oncology, Assarian Cancer Center, Ascension Providence Hospital, Novi, MI, USA
| | - Eric Short
- Department of Radiation Oncology, Assarian Cancer Center, Ascension Providence Hospital, Novi, MI, USA
| | - Patrick Hurley
- Department of Urology, Ascension Providence Hospital, Novi, MI, USA
| | - Vrinda Narayana
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
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10
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Zhou Y, Yuan J, Xue C, Poon DMC, Yang B, Yu SK, Cheung KY. A pilot study of MRI radiomics for high-risk prostate cancer stratification in 1.5 T MR-guided radiotherapy. Magn Reson Med 2023; 89:2088-2099. [PMID: 36572990 DOI: 10.1002/mrm.29564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/09/2022] [Accepted: 12/09/2022] [Indexed: 12/28/2022]
Abstract
PURPOSE To investigate the potential value of MRI radiomics obtained from a 1.5 T MRI-guided linear accelerator (MR-LINAC) for D'Amico high-risk prostate cancer (PC) classification in MR-guided radiotherapy (MRgRT). METHODS One hundred seventy-six consecutive PC patients underwent 1.5 T MRgRT treatment were retrospectively enrolled. Each patient received one or two pretreatment T2 -weighted MRI scans on a 1.5 T MR-LINAC. The endpoint was to differentiate high-risk from low/intermediate-risk PC based on D'Amico criteria using MRI-radiomics. Totally 1023 features were extracted from clinical target volume (CTV) and planning target volume (PTV). Intraclass correlation coefficient of scan-rescan repeatability, feature correlation, and recursive feature elimination were used for feature dimension reduction. Least absolute shrinkage and selection operator regression was employed for model construction. Receiver operating characteristic area under the curve (AUC) analysis was used for model performance assessment in both training and testing data. RESULTS One hundred and eleven patients fulfilled all criteria were finally included: 76 for training and 35 for testing. The constructed MRI-radiomics models extracted from CTV and PTV achieved the AUC of 0.812 and 0.867 in the training data, without significant difference (P = 0.083). The model performances remained in the testing. The sensitivity, specificity, and accuracy were 85.71%, 64.29%, and 77.14% for the PTV-based model; and 71.43%, 71.43%, and 71.43% for the CTV-based model. The corresponding AUCs were 0.718 and 0.750 (P = 0.091) for CTV- and PTV-based models. CONCLUSION MRI-radiomics obtained from a 1.5 T MR-LINAC showed promising results in D'Amico high-risk PC stratification, potentially helpful for the future PC MRgRT. Prospective studies with larger sample sizes and external validation are warranted for further verification.
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Affiliation(s)
- Yihang Zhou
- Research Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Jing Yuan
- Research Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Cindy Xue
- Research Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Darren M C Poon
- Comprehensive Oncology Center, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Bin Yang
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Siu Ki Yu
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Kin Yin Cheung
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
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11
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Onal C, Erbay G, Oymak E, Cem Guler O. The impact of the apparent diffusion coefficient for the early prediction of the treatment response after definitive radiotherapy in prostate cancer patients. Radiother Oncol 2023; 184:109677. [PMID: 37084886 DOI: 10.1016/j.radonc.2023.109677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/06/2023] [Accepted: 04/12/2023] [Indexed: 04/23/2023]
Abstract
PURPOSE We assessed early changes in apparent diffusion coefficient (ADC) and serum prostate specific antigen (PSA) values after definitive radiotherapy (RT) without androgen deprivation treatment in low- and intermediate-risk prostate cancer (PC) patients. MATERIALS AND METHODS The clinical data and ADC parameters of 229 PC patients were retrospectively evaluated. Pre-treatment and post-treatment serum PSA and primary tumor ADC values were calculated. Post-treatment DW-MRI was performed median 4.1 months after completion of definitive RT. The prognostic factors predicting freedom from biochemical failure (FFBF) and progression-free survival (PFS) were analyzed using univariable and multivariable analyses. RESULTS With a median follow-up time of 80.8 months, the 5-year FFBF and PFS rates were 95.9% and 89.3%, respectively. Eleven patients (4.8%) had PSA relapse, with a median of 34.4 months after the completion of RT. A statistically significant difference in post-treatment ADC values was noted between patients with and without recurrence (0.94 ± 0.07 vs. 1.10 ± 0.20 × 10-3 mm2/sec; p < 0.001). Patients with a Gleason score (GS) of 6 and low-risk disease had significantly higher post-treatment tumor ADC and PSA levels than patients with a GS of 7 and intermediate-risk disease. The 5-year FFBF rate in patients with tumor ADC ≤ 0.96 × 10-3 mm2/sec was significantly lower than patients with tumor ADC > 0.96 × 10-3 mm2/sec (85.5% vs. 100; p < 0.001). In the multivariable analysis, a lower ADC value, GS 4 + 3 and intermediate-risk disease were independent predictors of worse FFBF. In the multivariate analysis, a lower post-treatment ADC value and a GS of 4+3 were significant prognostic factors for a lower PFS. CONCLUSION These findings suggest that the post-treatment tumor ADC value could be used for early treatment response evaluation after definitive RT in PC patients.
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Affiliation(s)
- Cem Onal
- Department of Radiation Oncology, Baskent University Faculty of Medicine, Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey; Department of Radiation Oncology, Baskent University Faculty of Medicine, Ankara, Turkey.
| | - Gurcan Erbay
- Department of Radiology, Baskent University Faculty of Medicine, Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey
| | - Ezgi Oymak
- Division of Radiation Oncology, Iskenderun Gelisim Hospital, Hatay, Turkey
| | - Ozan Cem Guler
- Department of Radiation Oncology, Baskent University Faculty of Medicine, Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey
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12
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Köksal M, Hoppe C, Schröder AK, Scafa D, Koch D, Sarria GR, Leitzen C, Abramian A, Kaiser C, Faridi A, Henkenberens C, Schmeel LC, Giordano FA. Decision regret in breast cancer patients after adjuvant radiotherapy. Breast 2023; 68:133-141. [PMID: 36758448 PMCID: PMC9939714 DOI: 10.1016/j.breast.2023.01.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Breast cancer patients often engage in shared decision-making to select an individualized treatment regimen from multiple options. However, dissatisfaction with treatment outcomes can lead to decision regret. We evaluated decision regret and physical and psychological well-being among breast cancer patients who underwent adjuvant radiotherapy and explored their associations with patient, tumor, treatment, and symptom characteristics. METHODS This cross-sectional study involved retrospectively obtaining clinical data and data collected through interviews carried out as part of regular long-term medical aftercare. Decision regret regarding the radiotherapy was assessed using the Ottawa Decision Regret Scale, physical and psychological well-being were assessed using the PROMIS Global Health-10 questionnaire, and patients were asked about their treatment outcomes and symptoms. The questionnaire was administered 14 months to 4 years after completion of radiotherapy. RESULTS Of the 172 included breast cancer patients, only 13.9% expressed high decision regret, with most patients expressing little or no decision regret. More decision regret was associated with volumetric modulated arc therapy, chest wall irradiation, use of docetaxel as a chemotherapy agent, lymphangiosis carcinomatosa, new heart disease after radiotherapy, and lower psychological well-being. CONCLUSION Although most patients reported little or no decision regret, we identified several patient, treatment, and symptom characteristics associated with more decision regret. Our findings suggest that psychological well-being influences patients' satisfaction with therapy decisions, implying that practitioners should pay special attention to maintaining psychological well-being during shared decision-making and ensuring that psychological assessment and treatment is provided after cancer therapy to deal with long-term effects of radiotherapy.
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Affiliation(s)
- Mümtaz Köksal
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany.
| | - Clara Hoppe
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | | | - Davide Scafa
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | - David Koch
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | - Gustavo R Sarria
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | - Christina Leitzen
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | - Alina Abramian
- Department of Senology and Breast Center, University Medical Center Bonn (UKB), Bonn, Germany
| | - Christina Kaiser
- Department of Senology and Breast Center, University Medical Center Bonn (UKB), Bonn, Germany
| | - Andree Faridi
- Department of Senology and Breast Center, University Medical Center Bonn (UKB), Bonn, Germany
| | - Christoph Henkenberens
- Department of Radiation Oncology, Harzklinikum Dorothea Christiane Erxleben, Wernigerode, Germany
| | - Leonard C Schmeel
- Department of Radiation Oncology, University Medical Center Bonn (UKB), Bonn, Germany
| | - Frank A Giordano
- Department of Radiation Oncology, University Medical Center Mannheim (UMM), Mannheim, Germany
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13
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Toxicity of dose-escalated radiotherapy up to 84 Gy for prostate cancer. Strahlenther Onkol 2023; 199:574-584. [PMID: 36930248 DOI: 10.1007/s00066-023-02060-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 02/12/2023] [Indexed: 03/18/2023]
Abstract
PURPOSE The outcome of radiotherapy (RT) for prostate cancer (PCA) depends on the delivered dose. While the evidence for dose-escalated RT up to 80 gray (Gy) is well established, there have been only few studies examining dose escalation above 80 Gy. We initiated the present study to assess the safety of dose escalation up to 84 Gy. METHODS In our retrospective analysis, we included patients who received dose-escalated RT for PCA at our institution between 2016 and 2021. We evaluated acute genitourinary (GU) and gastrointestinal (GI) toxicity as well as late GU and GI toxicity. RESULTS A total of 86 patients could be evaluated, of whom 24 patients had received 80 Gy and 62 patients 84 Gy (35 without pelvic and 27 with pelvic radiotherapy). Regarding acute toxicities, no > grade 2 adverse events occurred. Acute GU/GI toxicity of grade 2 occurred in 12.5%/12.5% of patients treated with 80 Gy, in 25.7%/14.3% of patients treated with 84 Gy to the prostate only, and in 51.9%/12.9% of patients treated with 84 Gy and the pelvis included. Late GU/GI toxicity of grade ≥ 2 occurred in 4.2%/8.3% of patients treated with 80 Gy, in 7.1%/3.6% of patients treated with 84 Gy prostate only, and in 18.2%/0% of patients treated with 84 Gy pelvis included (log-rank test p = 0.358). CONCLUSION We demonstrated that dose-escalated RT for PCA up to 84 Gy is feasible and safe without a significant increase in acute toxicity. Further follow-up is needed to assess late toxicity and survival.
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14
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Kim S, Kong JH, Lee Y, Lee JY, Kang TW, Kong TH, Kim MH, You SH. Dose-escalated radiotherapy for clinically localized and locally advanced prostate cancer. Cochrane Database Syst Rev 2023; 3:CD012817. [PMID: 36884035 PMCID: PMC9994460 DOI: 10.1002/14651858.cd012817.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
BACKGROUND Treatments for clinically localized prostate cancer include radical prostatectomy, external beam radiation therapy, brachytherapy, active surveillance, hormonal therapy, and watchful waiting. For external beam radiation therapy, oncological outcomes may be expected to improve as the dose of radiotherapy (RT) increases. However, radiation-mediated side effects on surrounding critical organs may also increase. OBJECTIVES To assess the effects of dose-escalated RT in comparison with conventional dose RT for curative treatment of clinically localized and locally advanced prostate cancer. SEARCH METHODS We performed a comprehensive search using multiple databases including trial registries and other sources of grey literature, up until 20 July 2022. We applied no restrictions on publication language or status. SELECTION CRITERIA We included parallel-arm randomized controlled trials (RCTs) of definitive RT in men with clinically localized and locally advanced prostate adenocarcinoma. RT was dose-escalated RT (equivalent dose in 2 Gy [EQD2] ≥ 74 Gy, lesser than 2.5 Gy per fraction) versus conventional RT (EQD2 < 74 Gy, 1.8 Gy or 2.0 Gy per fraction). Two review authors independently classified studies for inclusion or exclusion. DATA COLLECTION AND ANALYSIS Two review authors independently abstracted data from the included studies. We performed statistical analyses by using a random-effects model and interpreted them according to the Cochrane Handbook for Systematic Reviews of Interventions. We used GRADE guidance to rate the certainty of the evidence of RCTs. MAIN RESULTS We included nine studies with 5437 men in an analysis comparing dose-escalated RT versus conventional dose RT for the treatment of prostate cancer. The mean participant age ranged from 67 to 71 years. Almost all men had localized prostate cancer (cT1-3N0M0). Primary outcomes Dose-escalated RT probably results in little to no difference in time to death from prostate cancer (hazard ratio [HR] 0.83, 95% CI 0.66 to 1.04; I2 = 0%; 8 studies; 5231 participants; moderate-certainty evidence). Assuming a risk of death from prostate cancer of 4 per 1000 at 10 years in the conventional dose RT group, this corresponds to 1 fewer men per 1000 (1 fewer to 0 more) dying of prostate cancer in the dose-escalated RT group. Dose-escalated RT probably results in little to no difference in severe RT toxicity of grade 3 or higher late gastrointestinal (GI) toxicity (RR 1.72, 95% CI 1.32 to 2.25; I2 = 0%; 8 studies; 4992 participants; moderate-certainty evidence); 23 more men per 1000 (10 more to 40 more) in the dose-escalated RT group assuming severe late GI toxicity as 32 per 1000 in the conventional dose RT group. Dose-escalated RT probably results in little to no difference in severe late genitourinary (GU) toxicity (RR 1.25, 95% CI 0.95 to 1.63; I2 = 0%; 8 studies; 4962 participants; moderate-certainty evidence); 9 more men per 1000 (2 fewer to 23 more) in the dose-escalated RT group assuming severe late GU toxicity as 37 per 1000 in the conventional dose RT group. Secondary outcomes Dose-escalated RT probably results in little to no difference in time to death from any cause (HR 0.98, 95% CI 0.89 to 1.09; I2 = 0%; 9 studies; 5437 participants; moderate-certainty evidence). Assuming a risk of death from any cause of 101 per 1000 at 10 years in the conventional dose RT group, this corresponds to 2 fewer men per 1000 (11 fewer to 9 more) in the dose-escalated RT group dying of any cause. Dose-escalated RT probably results in little to no difference in time to distant metastasis (HR 0.83, 95% CI 0.57 to 1.22; I2 = 45%; 7 studies; 3499 participants; moderate-certainty evidence). Assuming a risk of distant metastasis of 29 per 1000 in the conventional dose RT group at 10 years, this corresponds to 5 fewer men per 1000 (12 fewer to 6 more) in the dose-escalated RT group developing distant metastases. Dose-escalated RT may increase overall late GI toxicity (RR 1.27, 95% CI 1.04 to 1.55; I2 = 85%; 7 studies; 4328 participants; low-certainty evidence); 92 more men per 1000 (14 more to 188 more) in the dose-escalated RT group assuming overall late GI toxicity as 342 per 1000 in the conventional dose RT group. However, dose-escalated RT may result in little to no difference in overall late GU toxicity (RR 1.12, 95% CI 0.97 to 1.29; I2 = 51%; 7 studies; 4298 participants; low-certainty evidence); 34 more men per 1000 (9 fewer to 82 more) in the dose-escalated RT group assuming overall late GU toxicity as 283 per 1000 in the conventional dose RT group. Based on long-term follow-up (up to 36 months), dose-escalated RT may result or probably results in little to no difference in the quality of life using 36-Item Short Form Survey; physical health (MD -3.9, 95% CI -12.78 to 4.98; 1 study; 300 participants; moderate-certainty evidence) and mental health (MD -3.6, 95% CI -83.85 to 76.65; 1 study; 300 participants; low-certainty evidence), respectively. AUTHORS' CONCLUSIONS Compared to conventional dose RT, dose-escalated RT probably results in little to no difference in time to death from prostate cancer, time to death from any cause, time to distant metastasis, and RT toxicities (except overall late GI toxicity). While dose-escalated RT may increase overall late GI toxicity, it may result, or probably results, in little to no difference in physical and mental quality of life, respectively.
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Affiliation(s)
- Sunghyun Kim
- Department of Radation Oncology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Jee Hyun Kong
- Department of Hematology-Oncology, Division of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea, South
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
| | - YoHan Lee
- Department of Radation Oncology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Jun Young Lee
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Tae Wook Kang
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Tae Hoon Kong
- Department of Otorhinolaryngology Head and neck surgery, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Myung Ha Kim
- Yonsei Wonju Medical Library, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Sei Hwan You
- Department of Radation Oncology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
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15
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Cloitre M, Valerio M, Mampuya A, Rakauskas A, Berthold D, Tawadros T, Meuwly JY, Heym L, Duclos F, Vallet V, Zeverino M, Jichlinski P, Prior J, Roth B, Bourhis J, Herrera FG. Toxicity, quality of life, and PSA control after 50 Gy stereotactic body radiation therapy to the dominant intraprostatic nodule with the use of a rectal spacer: results of a phase I/II study. Br J Radiol 2023; 96:20220803. [PMID: 36745031 PMCID: PMC10161910 DOI: 10.1259/bjr.20220803] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES We conducted a phase I/II prospective trial to determine whether stereotactic dose escalation to the dominant intra-prostatic nodule (DIN) up to 50 Gy incorporating a rectal balloon spacer is safe, does not affect patient quality of life, and preserves local control in patients with intermediate-high risk PCa. METHODS Eligible patients included males with stage ≤T3b localized disease, a prostate-specific antigen (PSA) level ≤50 , International Prostate Symptom Score (IPSS) ≤14, and a gland volume ≤70 cm3. Patients underwent perirectal spacer placement, followed by a planning MRI and were subsequently treated with SBRT doses of 36.25 Gy in five fractions to the whole prostate while simultaneously escalating doses to the magnetic resonance image visible DIN up to 50 Gy. Primary endpoint: safety. Secondary endpoints: biochemical control, quality of life (QofL), and dosimetry outcome. RESULTS Nine patients were treated in the Phase I part of the study. Dose limiting toxicities (DLTs) were not observed. Further characterization of tolerability and efficacy was conducted in the subsequent 24 patients irradiated at the recommended Phase II dose (50 Gy, RP2D). At a median follow-up of 61 months, biochemical control is 69%. Grade 1 and 2 acute GU and GI toxicity was 57.5 and 15%, and 24.2 and 6.1%, respectively. Grade 1 and 2 late GU and GI toxicity was 66.6 and 12.1%, and 15.1 and 3%, respectively. No Grade 3 or higher toxicity was reported. QofL data confirmed physician's reported side effects. Dosimetry analysis showed adherence to the doses prescribed in the protocol. CONCLUSIONS SBRT of the whole prostate with 36.25 Gy in 5 fractions and dose escalation to 50 Gy to the DIN, when combined with a peri-rectal balloon spacer, was tolerable and established the RP2D. QofL analysis showed minimal negative impact in GU, GI, and sexual domains. ADVANCES IN KNOWLEDGE Extreme hypofractionated prostate radiation therapy with focal dose escalation to the DIN is well tolerated with efficacy comparable to normal fractionated radiation therapy.
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Affiliation(s)
- Minna Cloitre
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Massimo Valerio
- Department of Surgery, Urology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Ange Mampuya
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Arnas Rakauskas
- Department of Surgery, Urology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Dominik Berthold
- Department of Oncology, Medical Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Thomas Tawadros
- Department of Surgery, Urology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Jean-Yves Meuwly
- Department of Radiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Leonie Heym
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Frederic Duclos
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Véronique Vallet
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Michele Zeverino
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Patrice Jichlinski
- Department of Surgery, Urology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - John Prior
- Department of Radiology, Nuclear Medicine Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Beat Roth
- Department of Surgery, Urology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Jean Bourhis
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Fernanda G Herrera
- Department of Oncology, Radiation Oncology Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
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16
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Sanmamed N, Joseph L, Crook J, Craig T, Warde P, Tomasso AD, Chung P, Berlin A, Bayley A, Saibishkumar EP, Glicksman R, Raman S, Catton C, Helou J. Long-term oncologic outcomes of low dose-rate brachytherapy compared to hypofractionated external beam radiotherapy for intermediate -risk prostate cancer. Brachytherapy 2023; 22:188-194. [PMID: 36549968 DOI: 10.1016/j.brachy.2022.09.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/15/2022] [Accepted: 09/23/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE To compare the long-term oncologic outcomes of intermediate risk (IR) prostate cancer (PCa) patients treated with low dose-rate brachytherapy (LDR-BT) or moderate hypofractionated external beam radiotherapy (HF-EBRT). METHODS AND MATERIALS Patients diagnosed with IR PCa and treated with LDR-BT or HF-EBRT between January 2005 and December 2013 were included. Brachytherapy treatment involved a transperineal implant of iodine-125 to a dose of 145 Gy to the PTV, while HF-EBRT was delivered using intensity modulated radiotherapy with 60 Gy in 20 fractions. The Phoenix ''nadir +2'' threshold was used to define biochemical relapse (BR). The cumulative incidence function (CIF) of BR and metastases was reported for each group and compared using the Gray's test to account for the competing risk of death. The Kaplan-Meier (KM) method was used to estimate overall survival (OS) and prostate cancer specific survival (PCSS). Univariate (UVA) and multivariable (MVA) analysis of the CIF of BR and metastases were performed. A 2-tailed p-value ≤ 0.05 was considered statistically significant. RESULTS Overall, 122 and 124 patients were treated with LDR-BT and HF-EBRT respectively. Median follow-up was 95 months [interquartile range (IQR): 79-118] in the LDR-BT group and 96 months (IQR: 63-123) in the HF-EBRT group. BR was observed in 5 patients treated with LDR-BT and 34 treated with HF-EBRT. At 60 and 90 months, the CIF of BR was 0.9% and 3.5% in the LDR-BT group vs. 16.6% and 23.7% in the HF-EBRT (p < 0.001). The CIF of metastases at 90 and 108 months, was 0% and 1.6% vs. 3.4% and 9.1% in the LDR-BT and HF-EBRT groups (p = 0.003), respectively. At the last follow-up, 3 patients treated with HF-EBRT died from their cancer [PCSS of 97.5% at 8 years and none died in the LDR-BT group (p = 0.09). On UVA and MVA risk group and treatment modality were independently associated with CIF of BR. On UVA HF-EBRT and ISUP grade group 3 were associated with metastases. CONCLUSION LDR-BT was associated with higher biochemical and metastases control in our cohort when compared to moderately HF-EBRT. In the absence of a randomized trial, LDR-BT when feasible should be offered to patients with a life expectancy of >8 years.
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Affiliation(s)
- Noelia Sanmamed
- Department of Radiation Oncology, Hospital Clinico San Carlos, Madrid, Spain; Investigation institute, Clinico San Carlos Hospital, Madrid, Spain
| | - Lisa Joseph
- Department of Clinical Oncology, St James University Hospital, Leeds, UK
| | - Juanita Crook
- BC Cancer and University of British Columbia, Kelowna, British Columbia, Canada
| | - Tim Craig
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada
| | - Padraig Warde
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | - Anne Di Tomasso
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada
| | - Peter Chung
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | - Alejandro Berlin
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada; TECHNA Institute, University of Toronto, Toronto, Canada
| | - Andrew Bayley
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | | | - Rachel Glicksman
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | - Srinivas Raman
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | - Charles Catton
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada
| | - Joelle Helou
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Canada; Department of Radiation Oncology, University of Toronto, Canada.
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17
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Moll M, Weiß M, Stanisav V, Zaharie A, Goldner G. Effects of gold fiducial marker implantation on tumor control and toxicity in external beam radiotherapy of prostate cancer. Radiol Oncol 2023; 57:95-102. [PMID: 36653352 PMCID: PMC10039472 DOI: 10.2478/raon-2023-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/26/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Evidence regarding the effects of fiducials in image-guided radiotherapy (IGRT) for tumor control and acute and late toxicity is sparse. PATIENTS AND METHODS Patients with primary low- and intermediate-risk prostate cancer, 40 with and 21 without gold fiducial markers (GFM), and treated between 2010 and 2015 were retrospectively included. The decision for or against GFM implantation took anaesthetic evaluation and patient choice into account. IGRT was performed using electronic portal imaging devices. The prescribed dose was 78 Gy, with 2 Gy per fraction. Biochemical no evidence of disease (bNED) failure was defined using the Phoenix criteria. Acute and late gastrointestinal (GI) and genitourinary toxicity (GU) were assessed using the Radiation Therapy Oncology Group criteria. RESULTS Most patients did not receive GFM due to contraindications for anaesthesia or personal choice (60% and 25%). Regarding tumor control, no significant differences were found regarding bNED and overall and disease-specific survival (p = 0.61, p = 0.56, and p > 0.9999, respectively). No significant differences in acute and late GI (p = 0.16 and 0.64) and GU toxicity (p = 0.58 and 0.80) were observed. CONCLUSIONS We were unable to detect significant benefits in bNED or in early or late GI and GU side effects after GFM implantation.
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Affiliation(s)
- Matthias Moll
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Magdalena Weiß
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Vladimir Stanisav
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Alexandru Zaharie
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Gregor Goldner
- Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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18
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Tree AC, Satchwell L, Alexander E, Blasiak-Wal I, deSouza NM, Gao A, Greenlay E, McNair H, Parker C, Talbot J, Dearnaley D, Murray J. Standard and Hypofractionated Dose Escalation to Intraprostatic Tumor Nodules in Localized Prostate Cancer: 5-Year Efficacy and Toxicity in the DELINEATE Trial. Int J Radiat Oncol Biol Phys 2023; 115:305-316. [PMID: 36150450 DOI: 10.1016/j.ijrobp.2022.09.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 08/25/2022] [Accepted: 09/05/2022] [Indexed: 01/14/2023]
Abstract
PURPOSE Our purpose was to report 5-year efficacy and toxicity of intraprostatic lesion boosting using standard and hypofractionated radiation therapy. METHODS AND MATERIALS DELINEATE (ISRCTN 04483921) is a single center phase 2 multicohort study including standardly fractionated (cohort A: 74 Gy/37F to prostate and seminal vesicles [PSV]; cohort C 74 Gy/37F to PSV plus 60 Gy/37F to pelvic lymph nodes) and moderately hypofractionated (cohort B: 60 Gy/20F to PSV) prostate intensity-modulated radiation therapy patients with National Comprehensive Cancer Network intermediate/high-risk disease. Patients received an integrated boost of 82 Gy (cohorts A and C) or 67 Gy (cohort B) to multiparametric magnetic resonance imaging identified lesion(s). Primary endpoint was late Radiation Therapy Oncology Group (RTOG) gastrointestinal (GI) toxicity at 1 year. Secondary endpoints were acute and late toxicity (clinician and patient reported) and freedom from biochemical/clinical failure at 5 years. RESULTS Two hundred and sixty-five men were recruited and 256 were treated (55 cohort A, 153 cohort B, and 48 cohort C). Median follow-up for each cohort was >5 years. Cumulative late RTOG grade 2+ GI toxicity at 1 year was 3.6% (95% confidence interval [CI], 0.9%-13.8%) (cohort A), 7.2% (95% CI, 4%-12.6%) (cohort B), and 8.4% (95% CI, 3.2%-20.8%) (cohort C). Cumulative late RTOG grade 2+ GI toxicity to 5 years was 12.8% (95% CI, 6.3%-25.1%) (cohort A), 14.6% (95% CI, 9.9%-21.4%) (cohort B), and 20.7% (95% CI, 11.2%-36.2%) (cohort C). Cumulative RTOG grade 2+ genitourinary toxicity to 5 years was 12.9% (95% CI, 6.4%-25.2%) (cohort A), 18.2% (95% CI, 12.8%-25.4%) (cohort B), and 18.2% (95% CI, 9.5%-33.2%) (cohort C). Five-year freedom from biochemical/clinical failure was 98.2% (95% CI, 87.8%-99.7%) (cohort A), 96.7% (95% CI, 91.3%- 98.8%) (cohort B), and 95.1% (95% CI, 81.6-98.7%) (cohort C). CONCLUSIONS The DELINEATE trial has shown safety, tolerability, and feasibility of focal boosting in 20 or 37 fractions. Efficacy results indicate a low chance of prostate cancer recurrence 5 years after radiation therapy. Evidence from ongoing phase 3 randomized trials is awaited.
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Affiliation(s)
- Alison C Tree
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom; Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom.
| | - Laura Satchwell
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | - Emma Alexander
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | | | - Nandita M deSouza
- Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom
| | - Annie Gao
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | - Emily Greenlay
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | - Helen McNair
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom; Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom
| | - Chris Parker
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom; Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom
| | - James Talbot
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | - David Dearnaley
- Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom; The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom
| | - Julia Murray
- The Royal Marsden NHS Foundation Trust, Sutton, United Kingdom; Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom
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19
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Lim Joon D, Berry C, Harris B, Tacey M, Smith D, Lawrentschuk N, Schneider ME, Fraser O, Hall M, Chao M, Foroudi F, Jenkins T, Angus D, Wada M, Sengupta S, Khoo V. A clinical study comparing polymer and gold fiducials for prostate cancer radiotherapy. Front Oncol 2023; 12:1023288. [PMID: 36818674 PMCID: PMC9930895 DOI: 10.3389/fonc.2022.1023288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/30/2022] [Indexed: 02/04/2023] Open
Abstract
Introduction Image guidance with gold fiducials improves outcomes of prostate radiotherapy. However, gold produces artefact on CT imaging, interfering with contouring and verification. The purpose of this study was to compare polymer to standard gold fiducials using radiotherapy imaging modalities to assess the visibility and artefact. Methods Twenty eight patients with locally advanced prostate cancer were enrolled, half had three polymer fiducials implanted into the prostate and half underwent insertion of gold fiducials. Patients were imaged with CT, T2 weighted MRI, cone-beam CT (CBCT) and planar KV images. Fiducials were scored for visibility and assessed for CT artefact in surrounding prostate tissue. The artefact was quantified from Hounsfield number histograms and separated into percentile ranges and proportion of voxels in HU normal tissue range of a 2cm sphere surrounding the fiducial. Results Gold and polymer fiducials were sufficiently visible for CT and CBCT verification. The gold fiducials could be visualized well on KV planar imaging; however, the polymer markers were obscured by pelvic bones. Neither polymer nor gold fiducials could be visualized on MRI. The polymer fiducial produced less artefact than gold on CT, having less voxel spread for the HU percentile ranges and a greater proportion of voxels in the normal tissue range. Conclusions Polymer fiducials are a more suitable fiducial than gold for CT/CBCT in prostate cancer radiotherapy, demonstrating minimal artefact and good visibility on CT. However, they were not well seen on MRI or KV imaging and thus not suitable for co-registration or planar KV verification.
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Affiliation(s)
- Daryl Lim Joon
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia,*Correspondence: Daryl Lim Joon,
| | - Colleen Berry
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Benjamin Harris
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Mark Tacey
- Office of Research, The Northern Hospital, Epping, VIC, Australia,Melbourne School of Population and Global Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Carlton, VIC, Australia
| | - Drew Smith
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | | | | | - Olivia Fraser
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Megan Hall
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Michael Chao
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Farshad Foroudi
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Trish Jenkins
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - David Angus
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Morikatsu Wada
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Shomik Sengupta
- Austin Health, University of Melbourne, Melbourne, VIC, Australia,*Correspondence: Daryl Lim Joon,
| | - Vincent Khoo
- Department of Clinical Oncology, Royal Marsden Hospital, London, United Kingdom,*Correspondence: Daryl Lim Joon,
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20
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Ahmad Khalil D, Wulff J, Jazmati D, Geismar D, Bäumer C, Kramer PH, Steinmeier T, Schleithoff SS, Tschirdewahn S, Hadaschik B, Timmermann B. Is an Endorectal Balloon Beneficial for Rectal Sparing after Spacer Implantation in Prostate Cancer Patients Treated with Hypofractionated Intensity-Modulated Proton Beam Therapy? A Dosimetric and Radiobiological Comparison Study. Curr Oncol 2023; 30:758-768. [PMID: 36661707 PMCID: PMC9857887 DOI: 10.3390/curroncol30010058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/21/2022] [Accepted: 12/29/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The aim of this study is to examine the dosimetric influence of endorectal balloons (ERB) on rectal sparing in prostate cancer patients with implanted hydrogel rectum spacers treated with dose-escalated or hypofractionated intensity-modulated proton beam therapy (IMPT). METHODS Ten patients with localized prostate cancer included in the ProRegPros study and treated at our center were investigated. All patients underwent placement of hydrogel rectum spacers before planning. Two planning CTs (with and without 120 cm3 fluid-filled ERB) were applied for each patient. Dose prescription was set according to the h strategy, with 72 Gray (Gy)/2.4 Gy/5× weekly to prostate + 1 cm of the seminal vesicle, and 60 Gy/2 Gy/5× weekly to prostate + 2 cm of the seminal vesicle. Planning with two laterally opposed IMPT beams was performed in both CTs. Rectal dosimetry values including dose-volume statistics and normal tissue complication probability (NTCP) were compared for both plans (non-ERB plans vs. ERB plans). RESULTS For ERB plans compared with non-ERB, the reductions were 8.51 ± 5.25 Gy (RBE) (p = 0.000) and 15.76 ± 11.11 Gy (p = 0.001) for the mean and the median rectal doses, respectively. No significant reductions in rectal volumes were found after high dose levels. The use of ERB resulted in significant reduction in rectal volume after receiving 50 Gy (RBE), 40 Gy (RBE), 30 Gy (RBE), 20 Gy (RBE), and 10 Gy (RBE) with p values of 0.034, 0.008, 0.003, 0.001, and 0.001, respectively. No differences between ERB and non-ERB plans for the anterior rectum were observed. ERB reduced posterior rectal volumes in patients who received 30 Gy (RBE), 20 Gy (RBE), or 10 Gy (RBE), with p values of 0.019, 0.003, and 0.001, respectively. According to the NTCP models, no significant reductions were observed in mean or median rectal toxicity (late rectal bleeding ≥ 2, necrosis or stenosis, and late rectal toxicity ≥ 3) when using the ERB. CONCLUSION ERB reduced rectal volumes exposed to intermediate or low dose levels. However, no significant reduction in rectal volume was observed in patients receiving high or intermediate doses. There was no benefit and also no disadvantage associated with the use of ERB for late rectal toxicity, according to available NTCP models.
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Affiliation(s)
- Dalia Ahmad Khalil
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), 45147 Essen, Germany
| | - Jörg Wulff
- Faculty of Physics, TU Dortmund University, 44227 Dortmund, Germany
| | - Danny Jazmati
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), 45147 Essen, Germany
| | - Dirk Geismar
- Faculty of Physics, TU Dortmund University, 44227 Dortmund, Germany
| | - Christian Bäumer
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), 45147 Essen, Germany
| | | | - Theresa Steinmeier
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), 45147 Essen, Germany
| | | | - Stephan Tschirdewahn
- Department of Urology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Boris Hadaschik
- Department of Urology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Beate Timmermann
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), 45147 Essen, Germany
- Faculty of Physics, TU Dortmund University, 44227 Dortmund, Germany
- German Cancer Consortium (DKTK), 45147 Essen, Germany
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21
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Soni A, Jadhav GK, Manocha S, Chauhan S, Goswami B, Verma M. Comparative evaluation of hypofractionated radiotherapy versus conventionally fractionated radiotherapy for patients with intermediate and high risk prostate cancer. Rep Pract Oncol Radiother 2022; 27:1001-1009. [PMID: 36632300 PMCID: PMC9826658 DOI: 10.5603/rpor.a2022.0116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/28/2022] [Indexed: 12/12/2022] Open
Abstract
Background The purpose of this study was to comparatively evaluate an efficacy and toxicity profile of hypofractionated radiotherapy (67.5 Gy in 25 fractions) to conventionally fractionated radiotherapy (78 Gy in 39 fractions) in prostate cancer patients with intermediate and high-risk disease. Materials and methods From January 2015 to December 2018, 168 patients were randomized to hypofractionated radiation treatment and conventional fractionated radiation treatment schedules of volumetric modulated arc therapy (VMAT) to the prostate and seminal vesicles. All the patients also received androgen deprivation therapy (ADT) and radiation therapy started after ADT. Results The median (range) follow-up was 51 (31-63) and 53 (33-64) months in the hypofractionated and conventionally fractionated regimes, respectively. The 3-year biochemical no evidence of disease (bNED) rates were 86.9% and 73.8% in the hypofractionated and conventionally fractionated groups, respectively (p = 0.032, significant). The 3-year bNED rates in patients at a high risk [i.e., pretreatment prostate-specific antigen (PSA) > 20 ng/mL, Gleason score ≥ 8, or T ≥ 2 c], were 87.9% and 73.5% (p = 0.007, significant) in the hypofractionated and conventionally fractionated radiotherapy groups, respectively. No statistically significant difference was found for late toxicity between the two groups, with 3-year grade 2 gastrointestinal toxicity rates of 19% and 16.7% and 3-year grade 2 genitourinary toxicity rates of 15.5% and 11.9% in the hypofractionated and conventionally fractionated radiotherapy groups, respectively. Conclusion Hypofractionated schedule is superior to the conventional fractionation schedule of radiation treatment in terms of bNED in intermediate and high grade prostate cancer patients. Also, the late toxicity is found to be equivalent between the two treatment groups.
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Affiliation(s)
- Abhishek Soni
- Department of Radiation Oncology, PT Bhagwat Dayal Sharma, Rohtak, India
| | - Ganesh K Jadhav
- Department of Radiation Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Sapna Manocha
- Department of Radiation Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Sunil Chauhan
- Department of Radiation Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Brijesh Goswami
- Department of Radiation Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Monica Verma
- Department of Radiation Oncology, PT Bhagwat Dayal Sharma, Rohtak, India
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22
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Williams J, Millan KM, Bolton D, Tan A, Cham CW, Pham T, Pan D, Liu M, Chan Y, Manohar P, Thomas J, Koufogiannis G, Ho H, Guerrieri M, Ng M, Boike T, Macleod C, Joon DL, Foroudi F, Chao M. Hyaluronic acid rectal spacer in EBRT: Usability, safety and symmetry related to user experience. J Med Imaging Radiat Sci 2022; 53:640-647. [PMID: 36202722 DOI: 10.1016/j.jmir.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To report on the usability, safety, symmetry, and effectiveness of hyaluronic acid (HA) injected between the prostate and the rectum for patients undergoing treatment for prostate cancer with external beam radiotherapy (EBRT), and present a novel definition of rectal spacer symmetry that is reproducible and independent of patient anatomy. PATIENTS AND METHODS 102 consecutive patients with clinical stage of T1c-3b prostate cancer underwent general anaesthesia for fiducial marker insertion and injection of HA into the perirectal space before EBRT. HA safety, symmetry, separation, and usability based on user experience were assessed. RESULTS HA insertion was completed with a 100% success rate independent of user experience, rated as 'easy' or 'very easy' in all cases. There were no postoperative complications reported. The mean (SD) recto-prostatic separation for all patients at the base, midgland and apex were 12 (±2) mm, 11 (±2) mm, and 9 (±1) mm respectively. The mean sagittal length of the implant was 43 (±5) mm. The implant was rated as symmetrical in 98% of cases. The mean rV70Gy was 1.6% (IQR 0.8-3.3%) for patients receiving 78-80Gy. The mean rV53Gy was 2.8% (IQR 1.2-4.8%) for patients receiving 60-62Gy. The median prostate size was 43.5 cc (IQR 32-57). CONCLUSION Injection of HA was able to achieve highly symmetrical recto-prostatic separation, with new users able to produce excellent separation, particularly at the apex, achieving similar dosimetry outcomes as competent and experienced users. HA is safe, easy to use, and significantly reduced mean rV70Gy and rV53Gy compared to non-spacer patients.
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Affiliation(s)
- Jack Williams
- Albury Wodonga Health, 201 Borella Rd, Albury, NSW 2640, Australia; Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Kevin Mc Millan
- Eastern Health, 5 Arnold Street, Box Hill, VIC 3128, Australia
| | - Damien Bolton
- Austin Health, 145 Studley Rd, Heidelberg, VIC 3084, Australia
| | - Alwin Tan
- The Bays Hospital, 262 Main St, Mornington, VIC 3931, Australia
| | - Chee Wee Cham
- The Bays Hospital, 262 Main St, Mornington, VIC 3931, Australia
| | - Trung Pham
- Monash Health, 246, Clayton Rd, Clayton, VIC 3168, Australia
| | - David Pan
- Monash Health, 246, Clayton Rd, Clayton, VIC 3168, Australia
| | - Madalena Liu
- Monash Health, 246, Clayton Rd, Clayton, VIC 3168, Australia
| | - Yee Chan
- Austin Health, 145 Studley Rd, Heidelberg, VIC 3084, Australia
| | - Paul Manohar
- Monash Health, 246, Clayton Rd, Clayton, VIC 3168, Australia
| | - Joe Thomas
- Eastern Health, 5 Arnold Street, Box Hill, VIC 3128, Australia
| | - George Koufogiannis
- Ringwood Private Hospital, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Huong Ho
- Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Mario Guerrieri
- Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Michael Ng
- Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Thomas Boike
- Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia; Michigan Health Professionals Radiation Oncology, 4550 Investment Dr, Suite B111, Troy, MI 8098, US
| | - Craig Macleod
- Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia
| | - Daryl Lim Joon
- Austin Health, 145 Studley Rd, Heidelberg, VIC 3084, Australia
| | - Farshad Foroudi
- Austin Health, 145 Studley Rd, Heidelberg, VIC 3084, Australia
| | - Michael Chao
- Austin Health, 145 Studley Rd, Heidelberg, VIC 3084, Australia; Ringwood Private Hospital, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia; Genesis Care Victoria, 36 Mt Dandenong Rd, Ringwood East, VIC 3135, Australia.
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23
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Moradi S, Hashemi B, Bakhshandeh M, Banaei A, Mofid B. Introducing new plan evaluation indices for prostate dose painting IMRT plans based on apparent diffusion coefficient images. Radiat Oncol 2022; 17:193. [PMID: 36419067 PMCID: PMC9685857 DOI: 10.1186/s13014-022-02163-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Dose painting planning would be more complicated due to different levels of prescribed doses and more complex evaluation with conventional plan quality indices considering uniform dose prescription. Therefore, we tried to introduce new indices for evaluating the dose distribution conformity and homogeneity of treatment volumes based on the tumoral cell density and relative volumes of each lesion in prostate IMRT. METHODS CT and MRI scans of 20 male patients having local prostate cancer were used for IMRT DP planning. Apparent diffusion coefficient (ADC) images were imported to a MATLAB program to identify lesion regions based on ADC values automatically. Regions with ADC values lower than 750 mm2/s and regions with ADC values higher than 750 and less than 1500 mm2/s were considered CTV70Gy (clinical tumor volume with 70 Gy prescribed dose), and CTV60Gy, respectively. Other regions of the prostate were considered as CTV53Gy. New plan evaluation indices based on evaluating the homogeneity (IOE(H)), and conformity (IOE(C)) were introduced, considering the relative volume of each lesion and cellular density obtained from ADC images. These indices were compared with conventional homogeneity and conformity indices and IOEs without considering cellular density. Furthermore, tumor control probability (TCP) was calculated for each patient, and the relationship of the assessed indices were evaluated with TCP values. RESULTS IOE (H) and IOE (C) with considering cellular density had significantly lower values compared to conventional indices and IOEs without considering cellular density. (P < 0.05). TCP values had a stronger relationship with IOE(H) considering cell density (R2 = -0.415), and IOE(C) without considering cell density (R2 = 0.624). CONCLUSION IOE plan evaluation indices proposed in this study can be used for evaluating prostate IMRT dose painting plans. We suggested to consider cell densities in the IOE(H) calculation formula and it's appropriate to calculate IOE(C) without considering cell density values.
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Affiliation(s)
- Saman Moradi
- grid.412266.50000 0001 1781 3962Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, 1411713116 Iran
| | - Bijan Hashemi
- grid.412266.50000 0001 1781 3962Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, 1411713116 Iran
| | - Mohsen Bakhshandeh
- grid.411600.2Department of Radiology Technology, Faculty of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717443 Iran
| | - Amin Banaei
- grid.412266.50000 0001 1781 3962Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, 1411713116 Iran
| | - Bahram Mofid
- grid.411600.2Department of Radiation Oncology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 1985717443 Iran
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24
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Dose-escalation in prostate cancer: Results of randomized trials. Cancer Radiother 2022; 26:899-904. [PMID: 36030191 DOI: 10.1016/j.canrad.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022]
Abstract
In 1998, an editorial from the International Journal of Radiation Oncology - Biology - Physics (IJROBP) on the occasion of the publication of Phase I by Zelefsky et al. on 3D radiotherapy dose escalation asked the question: "will more prove better?". More than 20 years later, several prospective studies have supported the authors' conclusions, making dose escalation a new standard in prostate cancer. The data from prospective randomized studies were ultimately disappointing in that they failed to show an overall survival benefit from dose escalation. However, there is a clear and consistent benefit in biochemical recurrence-free survival, which must be weighed on an individual patient basis against the potential additional toxicity of dose escalation. Techniques and concepts have become more and more precise, such as intensity modulated irradiation, simultaneous integrated boost, hypofractionated dose-escalation, pelvic irradiation with involved node boost or focal dose-escalation on gross recurrence after prostatectomy. The objective here was to summarize the prospective data on dose escalation in prostate cancer and in particular on recent advances in the field. In 2022, can we finally say that more has proven better?
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25
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Advancements in the radiooncological treatment of high-risk prostate cancer: a quarter century of achievements. Radiol Oncol 2022; 56:365-370. [PMID: 35502906 PMCID: PMC9400444 DOI: 10.2478/raon-2022-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/28/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The aim of the study was to evaluate the development of treatment of primary high-risk prostate cancer in regards to biochemical no evidence of disease (bNED), acute and late gastrointestinal (GI) and genitourinary (GU) side effects. PATIENTS AND METHODS Primary high-risk prostate cancer patients treated between 1994 and 2016 were included. Applied doses ranged from 60 to 80 Gy, with a dose of 1.8 or 2 Gy per fraction. Techniques were either 3D conformal or intensity modulated radiotherapy and volumetric intensity modulated arc therapy. RESULTS 142 patients were treated with doses up to 70 Gy (median dose 66 Gy; 66 Gy group), 282 with doses between 70 and 76 Gy (median dose 74 Gy; 74 Gy group), and 141 with doses >76 Gy (median dose 78 Gy; 78 Gy group). The median follow-up was 48 months. The bNED rates were 50% after 5 years and 44% after 9 years in the 66 Gy group; 65% and 54%, respectively, in the 74 Gy group; and 83% and 66%, respectively, in the 78 Gy group (p = 0.03 vs. 74 Gy and p < 0.0001 vs. 66 Gy). We found a higher rate of acute GI side effects in the 78 Gy group compared to the other groups, but not in maximum acute GU side effects and late maximum GI and GU effects. CONCLUSIONS High-risk prostate cancer patients treated with doses of 78 Gy had significantly better bNED rates. Compared to the historical 66 Gy group, 50% more patients achieved bNED after a follow-up of 9 years.
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Poon DMC, Yuan J, Yang B, Wong OL, Chiu ST, Chiu G, Cheung KY, Yu SK, Yung RWH. A Prospective Study of Stereotactic Body Radiotherapy (SBRT) with Concomitant Whole-Pelvic Radiotherapy (WPRT) for High-Risk Localized Prostate Cancer Patients Using 1.5 Tesla Magnetic Resonance Guidance: The Preliminary Clinical Outcome. Cancers (Basel) 2022; 14:cancers14143484. [PMID: 35884553 PMCID: PMC9321843 DOI: 10.3390/cancers14143484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 12/10/2022] Open
Abstract
Background: Conventionally fractionated whole-pelvic nodal radiotherapy (WPRT) improves clinical outcome compared to prostate-only RT in high-risk prostate cancer (HR-PC). MR-guided stereotactic body radiotherapy (MRgSBRT) with concomitant WPRT represents a novel radiotherapy (RT) paradigm for HR-PC, potentially improving online image guidance and clinical outcomes. This study aims to report the preliminary clinical experiences and treatment outcome of 1.5 Tesla adaptive MRgSBRT with concomitant WPRT in HR-PC patients. Materials and methods: Forty-two consecutive HR-PC patients (72.5 ± 6.8 years) were prospectively enrolled, treated by online adaptive MRgSBRT (8 Gy(prostate)/5 Gy(WPRT) × 5 fractions) combined with androgen deprivation therapy (ADT) and followed up (median: 251 days, range: 20−609 days). Clinical outcomes were measured by gastrointestinal (GI) and genitourinary (GU) toxicities according to the Common Terminology Criteria for Adverse Events (CTCAE) Scale v. 5.0, patient-reported quality of life (QoL) with EPIC (Expanded Prostate Cancer Index Composite) questionnaire, and prostate-specific antigen (PSA) responses. Results: All MRgSBRT fractions achieved planning objectives and dose specifications of the targets and organs at risk, and they were successfully delivered. The maximum cumulative acute GI/GU grade 1 and 2 toxicity rates were 19.0%/81.0% and 2.4%/7.1%, respectively. The subacute (>30 days) GI/GU grade 1 and 2 toxicity rates were 21.4%/64.3% and 2.4%/2.4%, respectively. No grade 3 toxicities were reported. QoL showed insignificant changes in urinary, bowel, sexual, and hormonal domain scores during the follow-up period. All patients had early post-MRgSBRT biochemical responses, while biochemical recurrence (PSA nadir + 2 ng/mL) occurred in one patient at month 18. Conclusions: To our knowledge, this is the first prospective study that showed the clinical outcomes of MRgSBRT with concomitant WPRT in HR-PC patients. The early results suggested favorable treatment-related toxicities and encouraging patient-reported QoLs, but long-term follow-up is needed to confirm our early results.
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Affiliation(s)
- Darren M C Poon
- Comprehensive Oncology Centre, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Jing Yuan
- Research Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Bin Yang
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Oi-Lei Wong
- Research Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Sin-Ting Chiu
- Department of Radiotherapy, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - George Chiu
- Department of Radiotherapy, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Kin-Yin Cheung
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Siu-Ki Yu
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
| | - Raymond W H Yung
- Research Department, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong SAR, China
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Yamazaki H, Suzuki G, Masui K, Aibe N, Shimizu D, Kimoto T, Yamada K, Okihara K, Ueda T, Narukawa T, Shiraishi T, Fujihara A, Yoshida K, Nakamura S, Kato T, Hashimoto Y, Okabe H. Role of Brachytherapy Boost in Clinically Localized Intermediate and High-Risk Prostate Cancer: Lack of Benefit in Patients with Very High-Risk Factors T3b-4 and/or Gleason 9-10. Cancers (Basel) 2022; 14:cancers14122976. [PMID: 35740639 PMCID: PMC9221358 DOI: 10.3390/cancers14122976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary In general, brachytherapy (BT) improves biochemical control in intermediate-to high-risk prostate cancer. We previously reported that importance of very high-risk factors (VHR: T3b–4 or Gleason score 9–10) and patients with double VHR (VHR-2) showed the worst prognosis among high-risk groups. We explored the role of BT-boost in patients with VHR and compared it to intermediate- and other high-risk groups. We confirmed that BT-boost improved prostate-specific antigen (PSA) control but resulted in equivalent overall survival rates for the intermediate- and high-risk groups, except for the patients with VHR. In the VHR-1 group (single VHR), BT-boost showed superior PSA control to conventional-dose RT (EQD2 ≤ 72 Gy) but not to the dose-escalated radiotherapy group (EQD2 ≥ 74 Gy). In the VHR-2 group, BT-boost did not improve the biochemical control rate of either Conv RT or DeRT. BT-boost showed no benefit over modern DeRT in the patients with VHR. Abstract This study examined the role of brachytherapy boost (BT-boost) and external beam radiotherapy (EBRT) in intermediate- to high-risk prostate cancer, especially in patients with very high-risk factors (VHR: T3b–4 or Gleason score 9–10) as patients with double very high-risk factors (VHR-2: T3b–4 and Gleason score 9–10) previously showed worst prognosis in localized prostate cancer. We retrospectively reviewed multi-institutional data of 1961 patients that were administered radiotherapy (1091 BT-boost and 872 EBRT: 593 conventional-dose RT (Conv RT: equivalent to doses of 2 Gy per fraction = EQD2 ≤ 72 Gy) and 216 dose-escalating RT (DeRT = EQD2 ≥ 74 Gy). We found that BT-boost improved PSA control and provided an equivalent overall survival rate in the intermediate- and high-risk groups, except for patients within the VHR factor group. In the VHR-1 group (single VHR), BT-boost showed a superior biochemical control rate to the Conv RT group but not to the DeRT group. In the VHR-2 group, BT-boost did not improve outcomes of either Conv RT or DeRT groups. In conclusion, BT-boost showed no benefit to modern DeRT in the patients with VHR; therefore, they are not good candidates for BT-boost to improve outcome and may be amenable to clinical trials using multimodal intensified systemic treatments.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
- Correspondence: ; Tel.: +81-(752)-515-111
| | - Gen Suzuki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Koji Masui
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Norihiro Aibe
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Daisuke Shimizu
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Takuya Kimoto
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Kei Yamada
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (G.S.); (K.M.); (N.A.); (D.S.); (T.K.); (K.Y.)
| | - Koji Okihara
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (K.O.); (T.U.); (T.N.); (T.S.); (A.F.)
| | - Takashi Ueda
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (K.O.); (T.U.); (T.N.); (T.S.); (A.F.)
| | - Tsukasa Narukawa
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (K.O.); (T.U.); (T.N.); (T.S.); (A.F.)
| | - Takumi Shiraishi
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (K.O.); (T.U.); (T.N.); (T.S.); (A.F.)
| | - Atsuko Fujihara
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; (K.O.); (T.U.); (T.N.); (T.S.); (A.F.)
| | - Ken Yoshida
- Department of Radiology, Kansai Medical University, Hirakata 573-1010, Japan; (K.Y.); (S.N.)
| | - Satoaki Nakamura
- Department of Radiology, Kansai Medical University, Hirakata 573-1010, Japan; (K.Y.); (S.N.)
| | - Takashi Kato
- Department of Radiology, Ujitakeda Hospital, Uji-City, Kyoto 611-0021, Japan; (T.K.); (Y.H.); (H.O.)
| | - Yasutoshi Hashimoto
- Department of Radiology, Ujitakeda Hospital, Uji-City, Kyoto 611-0021, Japan; (T.K.); (Y.H.); (H.O.)
| | - Haruumi Okabe
- Department of Radiology, Ujitakeda Hospital, Uji-City, Kyoto 611-0021, Japan; (T.K.); (Y.H.); (H.O.)
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Yang B, Yuan J, Poon DM, Geng H, Lam WW, Cheung KY, Yu SK. Assessment of planning target volume margins in 1.5 T magnetic resonance‐guided stereotactic body radiation therapy for localized prostate cancer. PRECISION RADIATION ONCOLOGY 2022. [DOI: 10.1002/pro6.1155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Bin Yang
- Medical Physics Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Jing Yuan
- Research Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Darren M.C. Poon
- Comprehensive Oncology Centre Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Hui Geng
- Medical Physics Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Wai Wang Lam
- Medical Physics Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Kin Yin Cheung
- Medical Physics Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
| | - Siu Ki Yu
- Medical Physics Department Hong Kong Sanatorium & Hospital Happy Valley Hong Kong China
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Tamihardja J, Lawrenz I, Lutyj P, Weick S, Guckenberger M, Polat B, Flentje M. Propensity score-matched analysis comparing dose-escalated intensity-modulated radiation therapy versus external beam radiation therapy plus high-dose-rate brachytherapy for localized prostate cancer. Strahlenther Onkol 2022; 198:735-743. [PMID: 35551434 PMCID: PMC9300494 DOI: 10.1007/s00066-022-01953-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/20/2022] [Indexed: 11/30/2022]
Abstract
Purpose Dose-escalated external beam radiation therapy (EBRT) and EBRT + high-dose-rate brachytherapy (HDR-BT) boost are guideline-recommended treatment options for localized prostate cancer. The purpose of this study was to compare long-term outcome and toxicity of dose-escalated EBRT versus EBRT + HDR-BT boost. Methods From 2002 to 2019, 744 consecutive patients received either EBRT or EBRT + HDR-BT boost, of whom 516 patients were propensity score matched. Median follow-up was 95.3 months. Cone beam CT image-guided EBRT consisted of 33 fractions of intensity-modulated radiation therapy with simultaneous integrated boost up to 76.23 Gy (DMean). Combined treatment was delivered as 46 Gy (DMean) EBRT, followed by two fractions HDR-BT boost with 9 Gy (D90%). Propensity score matching was applied before analysis of the primary endpoint, estimated 10-year biochemical relapse-free survival (bRFS), and the secondary endpoints metastasis-free survival (MFS) and overall survival (OS). Prognostic parameters were analyzed by Cox proportional hazard modelling. Genitourinary (GU)/gastrointestinal (GI) toxicity evaluation used the Common Toxicity Criteria for Adverse Events (v5.0). Results The estimated 10-year bRFS was 82.0% vs. 76.4% (p = 0.075) for EBRT alone versus combined treatment, respectively. The estimated 10-year MFS was 82.9% vs. 87.0% (p = 0.195) and the 10-year OS was 65.7% vs. 68.9% (p = 0.303), respectively. Cumulative 5‑year late GU ≥ grade 2 toxicities were seen in 23.6% vs. 19.2% (p = 0.086) and 5‑year late GI ≥ grade 2 toxicities in 11.1% vs. 5.0% of the patients (p = 0.002); cumulative 5‑year late grade 3 GU toxicity occurred in 4.2% vs. 3.6% (p = 0.401) and GI toxicity in 1.0% vs. 0.3% (p = 0.249), respectively. Conclusion Both treatment groups showed excellent long-term outcomes with low rates of severe toxicity.
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Affiliation(s)
- Jörg Tamihardja
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
| | - Ingulf Lawrenz
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
| | - Paul Lutyj
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
| | - Stefan Weick
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Bülent Polat
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
| | - Michael Flentje
- Department of Radiation Oncology, University of Wuerzburg, Josef-Schneider-Str. 11, 97080 Würzburg, Germany
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Dumas M, Leney M, Kim J, Sevak P, Elshaikh M, Pantelic M, Movsas B, Chetty IJ, Wen N. Magnetic resonance imaging‐only‐based radiation treatment planning for simultaneous integrated boost of multiparametric magnetic resonance imaging‐defined dominant intraprostatic lesions. PRECISION RADIATION ONCOLOGY 2022. [DOI: 10.1002/pro6.1152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Michael Dumas
- Department of Radiation Oncology Henry Ford Health System Detroit Michigan USA
| | | | - Joshua Kim
- Department of Radiation Oncology Henry Ford Health System Detroit Michigan USA
| | - Parag Sevak
- Columbus Regional Healthcare System Columbus Ohio USA
| | - Mohamed Elshaikh
- Department of Radiation Oncology Henry Ford Health System Detroit Michigan USA
| | - Milan Pantelic
- Department of Radiology Henry Ford Health System Detroit Michigan USA
| | - Benjamin Movsas
- Department of Radiation Oncology Henry Ford Health System Detroit Michigan USA
| | - Indrin J. Chetty
- Department of Radiation Oncology Henry Ford Health System Detroit Michigan USA
| | - Ning Wen
- Department of Radiology Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
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Strnad V, Lotter M, Kreppner S, Fietkau R. Brachytherapy focal dose escalation using ultrasound based tissue characterization by patients with non-metastatic prostate cancer: Five-year results from single-center phase 2 trial. Brachytherapy 2022; 21:415-423. [PMID: 35396138 DOI: 10.1016/j.brachy.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/11/2022] [Accepted: 02/21/2022] [Indexed: 11/20/2022]
Abstract
PURPOSE This prospective trial investigates side effects and efficacy of focal dose escalation with brachytherapy for patients with prostate cancer. METHODS AND MATERIALS In the Phase II, monocentric prospective trial 101 patients with low-/intermediate- and high-risk prostate cancer were enrolled between 2011 and 2013. Patients received either PDR-/HDR-brachytherapy alone with 86-90 Gy (EQD2, α/β = 3 Gy) or PDR-/HDR-brachytherapy as boost after external beam radiation therapy up to a total dose of 91-96 Gy (EQD2, α/β = 3 Gy). Taking place brachytherapy all patients received the simultaneous integrated focal boost to the intra-prostatic tumor lesions visible in computer-aided ultrasonography (HistoScanning™) - up to a total dose of 108-119 Gy (EQD2, α/β = 3 Gy). The primary endpoint was toxicity. Secondary endpoints were cumulative freedom from local recurrence, PSA-free survival, distant metastases-free survival, and overall survival. This trial is registered with ClinicalTrials.gov, number NCT01409876. RESULTS Median follow-up was 65 months. Late toxicity was generally low with only four patients scoring urinary grade 3 toxicity (4/101, 4%). Occurrence of any grade of late rectal toxicities was very low. We did not register any grade ≥2 of late rectal toxicities. The cumulative 5 years local recurrence rate (LRR) for all patients was 1%. Five years- biochemical disease-free survival estimates according Kaplan-Meier were 98,1% and 81,3% for low-/intermediate-risk and high-risk patients, respectively. Five years metastases-free survival estimates according Kaplan-Meier were 98,0% and 83,3% for all patients, low-/intermediate-risk and high-risk patients, respectively. CONCLUSIONS The 5 years-results from this Phase II Trial show that focal dose escalation with computer-aided ultrasonography and brachytherapy for patients with non-metastatic prostate cancer is safe and effective.
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Affiliation(s)
- Vratislav Strnad
- Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany.
| | - Michael Lotter
- Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Stephan Kreppner
- Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
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Moderate hypofractionated helical tomotherapy for older patients with localized prostate cancer: long-term outcomes of a phase I-II trial. Radiol Oncol 2022; 56:216-227. [PMID: 35344645 PMCID: PMC9122298 DOI: 10.2478/raon-2022-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 02/11/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Our previous study showed that two different regimens of moderate hypofractionated radiotherapy (HFRT) delivered with helical tomotherapy (HT) are well tolerated in older prostate cancer patients. We provide a longterm efficacy and toxicity after > 7 years of follow-up. PATIENTS AND METHODS The study recruited 33 patients from February 2009 to July 2011 (76 Gy/34F; Group-1); and 34 from July 2011 to February 2014 (71.6 Gy/28F; 50.4 Gy/25F for the risk of pelvic lymph nodes involvement (LNI) >15%; Group-2). The primary outcomes were biochemical failure (BF), biochemical failure and clinical disease failure (BCDF), progression-free survival (PFS), overall survival (OS), late genitourinary (GU) and gastrointestinal (GI) toxicity. RESULTS The average ages of two groups were 80 and 77 years and the proportions of patients with LNI > 15% were 69.7% and 73.5%, respectively. At the final follow-up in February 2020, 27.3% and 20.6% cases experienced BF, with a median time until BF of 3.3 years. A total of 38.8% patients reached primary endpoints, in which 18 deaths were reported BCDF events (45.5% vs. 32.4%, p = 0.271). There was no significant difference in 7-year PFS (68.6% vs. 74.8%, p = 0.591), BCDF (45.5% vs. 32.4%, p = 0.271) and OS (71.9% vs. 87.5%, p = 0.376) for full set analysis and for subgroup analysis (all p > 0.05). The incidence of grade ≥ 2 late GU (6.2% vs. 6.3%, p = 0.127) and GI toxicities (9.4% vs. 15.6%, p = 0.554) was comparable. CONCLUSIONS In older patients with localized prostate cancer, two moderate hypofractionated regimens were all well tolerated with similar, mild late toxicities and satisfactory survival, without necessity of prophylactic pelvic node irradiation.
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Terada N, Aizawa R, Nihei K, Shiota M, Kojima T, Kimura T, Inoue T, Kitamura H, Sugimoto M, Nishiyama H, Mizowaki T, Kamoto T. Narrative review of local prostate and metastasis-directed radiotherapy in the treatment of metastatic prostate cancer. Jpn J Clin Oncol 2022; 52:633-641. [PMID: 35325157 DOI: 10.1093/jjco/hyac035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 02/22/2022] [Indexed: 11/14/2022] Open
Abstract
The role of local treatment in patients with de novo metastatic prostate cancer is controversial. In population-based retrospective studies, metastatic prostate cancer patients who received local treatment with prostate radiotherapy showed a better prognosis than those who did not. In addition, several prospective randomized studies demonstrated that prostate radiotherapy achieves a survival benefit for patients with oligo-metastasis. Moreover, the efficacy of metastasis-directed radiotherapy was evaluated, revealing a potential benefit for patients with oligo-metastasis. Importantly, these radiotherapies may reduce the occurrence of symptomatic local events. In this review, the rationale, efficacy and future perspectives for local prostate and metastasis-directed radiotherapy in the treatment of metastatic prostate cancer were described and summarized.
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Affiliation(s)
- Naoki Terada
- Department of Urology, Miyazaki University, Miyazaki, Japan
| | - Rihito Aizawa
- Department of Radiation Oncology & Image-Applied Therapy, Kyoto University, Kyoto, Japan
| | - Keiji Nihei
- Department of Radiation Oncology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Masaki Shiota
- Department of Urology, Kyushu University, Fukuoka, Japan
| | | | | | | | | | - Mikio Sugimoto
- Department of Urology, Kagawa University, Takamatsu, Japan
| | | | - Takashi Mizowaki
- Department of Radiation Oncology & Image-Applied Therapy, Kyoto University, Kyoto, Japan
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Gul OV, Basaran H, Inan G. Evaluation of incidental testicular dose with thermoluminescence dosimetry during prostate radiotherapy. Med Dosim 2022; 47:203-206. [DOI: 10.1016/j.meddos.2022.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/12/2022] [Accepted: 02/10/2022] [Indexed: 10/18/2022]
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Kim TG, Park B, Song YG, Lee HW, Oh TH, Ryu DS, Jeong SC, Cho D, Oh J, Kim KM, Lee JW, Lee HS, Kong SM, Kim JY, Kim H. Patient-related risk factors for late rectal bleeding after hypofractionated radiotherapy for localized prostate cancer: a single-center retrospective study. Radiat Oncol 2022; 17:30. [PMID: 35139869 PMCID: PMC8827292 DOI: 10.1186/s13014-022-01998-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 01/26/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Several studies have reported patient-related risk factors for late rectal bleeding following conventionally fractionated radiotherapy for prostate cancer. We investigated patient-related risk factors for late rectal bleeding after hypofractionated radiotherapy.
Methods
A total of 231 patients with local or locally advanced prostate cancer treated with hypofractionated radiotherapy (70 or 67.2 Gy in 28 fractions) were evaluated retrospectively. All patients received intensity-modulated radiotherapy with daily image guidance. The relationships between late rectal bleeding and risk factors like diabetes, hypertension, cirrhosis, and anticoagulant use were analyzed.
Results
During a median follow-up of 23 months, the crude rates of grade ≥ 1, grade ≥ 2, and grade ≥ 3 late rectal bleeding were 23.8%, 16.9%, and 9.5%, respectively. Cirrhosis and anticoagulant use predicted an increased risk of grade ≥ 3 rectal bleeding in multivariable analyses (hazard ratio [HR] 14.37, 95% confidence interval [CI] 3.09–66.87, P = 0.001, and HR 2.93, 95% CI 1.14–7.55, P = 0.026, respectively). The non-anticoagulant group had a significantly superior 5-year freedom from grade ≥ 3 bleeding compared to the anticoagulant group in a propensity-weighted log-rank analysis (88.0% vs. 76.7%, P = 0.041). A receiver operating characteristic curve analysis revealed that rectal bleeding was minimized in the anticoagulant group if the equivalent dose at fractionation of 2 Gy (EQD2) V77 Gy of the rectum was < 4.5% or if the EQD2 V8.2 Gy was < 71.0%.
Conclusions
Patients taking anticoagulants or those with cirrhosis had a significantly higher risk of severe late rectal bleeding than other patients after hypofractionated radiotherapy for prostate cancer in the present study. The bleeding risk could be lowered by minimizing hotspots in patients taking anticoagulants.
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Sasamura K, Soyano T, Kozuka T, Yuasa T, Yamamoto S, Yonese J, Oguchi M, Yoshimura R, Yoshioka Y. Outcomes of intensity-modulated radiation therapy for intermediate- or high-risk prostate cancer: a single-institutional study. Jpn J Clin Oncol 2022; 52:170-178. [PMID: 34689189 DOI: 10.1093/jjco/hyab167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/07/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND There are few reports from Japan about the outcomes of intensity-modulated radiation therapy for localized prostate cancer. This study was aimed at assessing the efficacy and toxicity of intensity-modulated radiation therapy in patients with intermediate- or high-risk prostate cancer. METHODS We conducted a review of the data, retrieved from our institutional database, of patients who had received intensity-modulated radiation therapy for localized prostate cancer at a radiation dose of 78 Gy in 39 fractions. Data of 201 patients with intermediate-risk prostate cancer and 311 patients with high-risk prostate cancer were analyzed. RESULTS The median follow-up period after the completion of intensity-modulated radiation therapy was 100 months (range, 24-154). The rates of cause-specific survival, overall survival, metastasis-free survival and biochemical recurrence-free survival in the intermediate-risk patients were 99, 95, 95 and 94% at 5 years and 99, 91, 90 and 86% at 8 years, respectively; the corresponding rates in the high-risk patients were 100, 97, 91 and 84% at 5 years and 96, 92, 84 and 76% at 8 years, respectively. The crude incidence of late grade 2-3 genitourinary toxicity was 28.1%, and that of late grade 3 genitourinary toxicity was 2.0%. The crude incidence of late grade 2 gastrointestinal toxicity was 5.1%, and there were no cases of late grade 3 gastrointestinal toxicity. CONCLUSIONS Our data demonstrated that intensity-modulated radiation therapy is effective for patients with localized intermediate-risk or high-risk prostate cancer while having minimal toxicity.
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Affiliation(s)
- Kazuma Sasamura
- Radiation Oncology Department, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Soyano
- Department of Radiology, Japan Self-Defense Forces Central Hospital, Tokyo, Japan
| | - Takuyo Kozuka
- Department of Radiology, University of Tokyo Hospital, Tokyo, Japan
| | - Takeshi Yuasa
- Department of Urology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shinya Yamamoto
- Department of Urology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Junji Yonese
- Department of Urology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masahiko Oguchi
- Radiation Oncology Department, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ryoichi Yoshimura
- Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Yoshioka
- Radiation Oncology Department, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Jones CU, Pugh SL, Sandler HM, Chetner MP, Amin MB, Bruner DW, Zietman AL, Den RB, Leibenhaut MH, Longo JM, Bahary JP, Rosenthal SA, Souhami L, Michalski JM, Hartford AC, Amin PP, Roach M, Yee D, Efstathiou JA, Rodgers JP, Feng FY, Shipley WU. Adding Short-Term Androgen Deprivation Therapy to Radiation Therapy in Men With Localized Prostate Cancer: Long-Term Update of the NRG/RTOG 9408 Randomized Clinical Trial. Int J Radiat Oncol Biol Phys 2022; 112:294-303. [PMID: 34481017 PMCID: PMC8748315 DOI: 10.1016/j.ijrobp.2021.08.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE For men with localized prostate cancer, NRG Oncology/Radiation Therapy Oncology Group (RTOG) 9408 demonstrated that adding short-term androgen deprivation therapy (ADT) to radiation therapy (RT) improved the primary endpoint of overall survival (OS) and improved disease-specific mortality (DSM), biochemical failure (BF), local progression, and freedom from distant metastases (DM). This study was performed to determine whether the short-term ADT continued to improve OS, DSM, BF, and freedom from DM with longer follow-up. METHODS AND MATERIALS From 1994 to 2001, NRG/RTOG 9408 randomized 2028 men from 212 North American institutions with T1b-T2b, N0 prostate adenocarcinoma and prostate-specific antigen (PSA) ≤20ng/mL to RT alone or RT plus short-term ADT. Patients were stratified by PSA, tumor grade, and surgical versus clinical nodal staging. ADT was flutamide with either goserelin or leuprolide for 4 months. Prostate RT (66.6 Gy) was started after 2 months. OS was calculated at the date of death from any cause or at last follow-up. Secondary endpoints were DSM, BF, local progression, and DM. Acute and late toxic effects were assessed using RTOG toxicity scales. RESULTS Median follow-up in surviving patients was 14.8 years (range, 0.16-21.98). The 10-year and 18-year OS was 56% and 23%, respectively, with RT alone versus 63% and 23% with combined therapy (HR 0.94; 95% confidence interval [CI], 0.85-1.05; P = .94). The hazards were not proportional (P = .003). Estimated restricted mean survival time at 18 years was 11.8 years (95% CI, 11.4-12.1) with combined therapy versus 11.3 years with RT alone (95% CI, 10.9-11.6; P = .05). The 10-year and 18-year DSM was 7% and 14%, respectively, with RT alone versus 3% and 8% with combined therapy (HR 0.56; 95% CI, 0.41-0.75; P < .01). DM and BF favored combined therapy at 18 years. Rates of late grade ≥3 hepatic, gastrointestinal, and genitourinary toxicity were ≤1%, 3%, and 8%, respectively, with combined therapy versus ≤1%, 2%, and 5% with RT alone. CONCLUSIONS Further follow-up demonstrates that OS converges at approximately 15 years, by which point the administration of 4 months of ADT had conferred an estimated additional 6 months of life.
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Affiliation(s)
| | - Stephanie L Pugh
- NRG Oncology Statistics and Data Management Center, Philadelphia, Pennsylvania
| | | | | | - Mahul B Amin
- University of Tennessee Health Science Center, Memphis, Tennessee
| | | | | | - Robert B Den
- Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | | | - John M Longo
- Froedtert and the Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Jean-Paul Bahary
- Centre Hospitalier De L`Université De Montréal-Notre Dame, Montréal, Quebec, Canada
| | | | - Luis Souhami
- The Research Institute of the McGill University Health Centre, Montréal, Quebec, Canada
| | | | | | - Pradip P Amin
- University of Maryland/Greenebaum Cancer Center, Baltimore, Maryland
| | - Mack Roach
- UCSF Medical Center-Mount Zion, San Francisco, California
| | - Don Yee
- Cross Cancer Institute, Edmonton, Alberta, Canada
| | | | - Joseph P Rodgers
- NRG Oncology Statistics and Data Management Center, Philadelphia, Pennsylvania
| | - Felix Y Feng
- UCSF Medical Center-Mount Zion, San Francisco, California
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Zumsteg ZS. Simultaneous Integrated Micro-boost: Reigniting the FLAME for Dose Escalation in Prostate Cancer? Eur Urol 2022; 82:258-260. [PMID: 35109972 DOI: 10.1016/j.eururo.2022.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 01/13/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Zachary S Zumsteg
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Hall WA, Deshmukh S, Bruner DW, Michalski JM, Purdy JA, Bosch W, Bahary JP, Patel MP, Parliament MB, Lock MI, Lau HY, Souhami L, Fisher SA, Kwok Y, Seider MJ, Vigneault E, Rosenthal SA, Gustafson GS, Gay HA, Pugh SL, Sandler HM, Movsas B. Quality of Life Implications of Dose-Escalated External Beam Radiation for Localized Prostate Cancer: Results of a Prospective Randomized Phase 3 Clinical Trial, NRG/RTOG 0126. Int J Radiat Oncol Biol Phys 2022; 112:83-92. [PMID: 34919884 PMCID: PMC8789217 DOI: 10.1016/j.ijrobp.2021.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/13/2021] [Accepted: 07/02/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE External beam radiation therapy (EBRT) dose escalation has been tested in multiple prospective trials. However, the impact on patient reported outcomes (PROs) associated with higher doses of EBRT remain poorly understood. We sought to assess the differences in PROs between men treated with a dose of 70.2 Gy versus 79.2 Gy of EBRT for prostate cancer. METHODS AND MATERIALS The phase 3 clinical trial RTOG 0126 randomized 1532 patients with prostate cancer between March 2002 and August 2008 to 79.2 Gy over 44 fractions versus 70.2 Gy over 39 fractions. Eligible patients participated in the PRO data collection. PROs completed included the International Index of Erectile Function Questionnaire (IIEF), Functional Alterations due to Changes in Elimination (FACE), and the Spitzer Quality of Life Index (SQLI). The timepoints for the IIEF were collected pre-entry and at 6, 12, and 24 months. The FACE and SQLI were collected pre-entry and at 3, 6, 12, 18, and 24 months. The impact of EBRT dose to normal structures (penile bulb, rectum, and bladder) on PROs was also examined. Mixed effects models were used to analyze trends across time. RESULTS In total, 1144 patients completed baseline IIEF forms and of these, 56%, 64%, and 61% completed the IIEF at 6, 12, and 24 months, respectively; 1123 patients completed the FACE score at baseline and 50%, 61%, 73%, 61%, and 65% completed all 15 items for the FACE metric at timepoints of 3, 6, 12, 18, and 24 months, respectively. Erectile dysfunction at 12 months based on the single question was not significantly different between arms (38.1% for the standard dose radiation therapy arm vs 49.7% for the dose escalated radiation therapy arm; P = .051). Treatment arm (70.2 vs 79.2) had no significant impact on any PRO metrics measured across all collected domains. Comprehensive dosimetric analyses are presented and reveal multiple significant differences to regional organs at risk. CONCLUSIONS Compliance with PRO data collection was lower than anticipated in this phase 3 trial. Examining the available data, dose escalated EBRT did not appear to be associated with any detriment to PROs across numerous prospectively collected domains. These data, notwithstanding limitations, add to our understanding of the implications of EBRT dose escalation in prostate cancer. Furthermore, these results illustrate challenges associated with PRO data collection.
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Affiliation(s)
- William A Hall
- Medical College of Wisconsin,Corresponding Author: Froedtert and the Medical College of Wisconsin, 8701 W Watertown Plank Rd, Milwaukee, WI 53226, Telephone: 414-805-4477, Fax: 414-805-4369, , this has been previously presented at the American Society of Radiation Oncology meeting
| | | | | | | | | | | | | | | | | | | | | | | | | | - Young Kwok
- University of Maryland/Greenebaum Cancer Center
| | | | | | - Seth A Rosenthal
- Sutter Cancer Centers Radiation Oncology Services-accruals under Radiological Associates of Sacramento
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Groen VH, van Schie M, Zuithoff NPA, Monninkhof EM, Kunze-Busch M, de Boer JCJ, van der Voort van Zijp J, Pos FJ, Smeenk RJ, Haustermans K, Isebaert S, Draulans C, Depuydt T, Verkooijen HM, van der Heide UA, Kerkmeijer LGW. Urethral and bladder dose-effect relations for late genitourinary toxicity following external beam radiotherapy for prostate cancer in the FLAME trial. Radiother Oncol 2021; 167:127-132. [PMID: 34968470 DOI: 10.1016/j.radonc.2021.12.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 01/18/2023]
Abstract
PURPOSE or objectives The FLAME trial (NCT01168479) showed that by adding a focal boost to conventional fractionated EBRT in the treatment of localized prostate cancer, the five-year biochemical disease-free survival increased, without significantly increasing toxicity. The aim of the present study was to investigate the association between radiation dose to the bladder and urethra and genitourinary (GU) toxicity grade ≥2 in the entire cohort. MATERIAL AND METHODS The dose-effect relations of the urethra and bladder dose, separately, and GU toxicity grade ≥2 (CTCAE 3.0) up to five years after treatment were assessed. A mixed model analysis for repeated measurements was used, adjusting for age, diabetes mellitus, T-stage, baseline GU toxicity grade ≥1 and institute. Additionally, the association between the dose and separate GU toxicity subdomains were investigated. RESULTS Dose-effect relations were observed for the dose (Gy) to the bladder D2cm3 and urethra D0.1cm3, with adjusted odds ratios of 1.14 (95% CI 1.12-1.16, p<0.0001) and 1.12 (95% CI 1.11-1.14, p<0.0001), respectively. Additionally, associations between the dose to the urethra and bladder and the subdomains urinary frequency, urinary retention and urinary incontinence were observed. CONCLUSION Further increasing the dose to the bladder and urethra will result in a significant increase in GU toxicity following EBRT. Focal boost treatment plans should incorporate a urethral dose-constraint. Further treatment optimization to increase the focal boost dose without increasing the dose to the urethra and other organs at risk should be a focus for future research, as we have shown that a focal boost is beneficial in the treatment of prostate cancer.
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Affiliation(s)
- Veerle H Groen
- University Medical Center Utrecht, Radiation Oncology, Utrecht, The Netherlands
| | - Marcel van Schie
- The Netherlands Cancer Institute, Radiation Oncology, Amsterdam, The Netherlands
| | - Nicolaas P A Zuithoff
- University Medical Center, Julius Center for Health Sciences and Primary Care, Utrecht University, Utrecht, The Netherlands
| | - Evelyn M Monninkhof
- University Medical Center, Julius Center for Health Sciences and Primary Care, Utrecht University, Utrecht, The Netherlands
| | - Martina Kunze-Busch
- Radboud University Medical Center, Radiation Oncology, Nijmegen, The Netherlands
| | | | | | - Floris J Pos
- The Netherlands Cancer Institute, Radiation Oncology, Amsterdam, The Netherlands
| | - Robert Jan Smeenk
- Radboud University Medical Center, Radiation Oncology, Nijmegen, The Netherlands
| | | | - Sofie Isebaert
- University Hospitals Leuven, Radiation Oncology, Leuven, Belgium
| | - Cédric Draulans
- University Hospitals Leuven, Radiation Oncology, Leuven, Belgium
| | - Tom Depuydt
- University Hospitals Leuven, Radiation Oncology, Leuven, Belgium
| | | | | | - Linda G W Kerkmeijer
- University Medical Center Utrecht, Radiation Oncology, Utrecht, The Netherlands; Radboud University Medical Center, Radiation Oncology, Nijmegen, The Netherlands.
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Matkovic LA, Wang T, Lei Y, Akin-Akintayo OO, Ojo OAA, Akintayo AA, Roper J, Bradley JD, Liu T, Schuster DM, Yang X. Prostate and dominant intraprostatic lesion segmentation on PET/CT using cascaded regional-net. Phys Med Biol 2021; 66:10.1088/1361-6560/ac3c13. [PMID: 34808603 PMCID: PMC8725511 DOI: 10.1088/1361-6560/ac3c13] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 11/22/2021] [Indexed: 12/22/2022]
Abstract
Focal boost to dominant intraprostatic lesions (DILs) has recently been proposed for prostate radiation therapy. Accurate and fast delineation of the prostate and DILs is thus required during treatment planning. In this paper, we develop a learning-based method using positron emission tomography (PET)/computed tomography (CT) images to automatically segment the prostate and its DILs. To enable end-to-end segmentation, a deep learning-based method, called cascaded regional-Net, is utilized. The first network, referred to as dual attention network, is used to segment the prostate via extracting comprehensive features from both PET and CT images. A second network, referred to as mask scoring regional convolutional neural network (MSR-CNN), is used to segment the DILs from the PET and CT within the prostate region. Scoring strategy is used to diminish the misclassification of the DILs. For DIL segmentation, the proposed cascaded regional-Net uses two steps to remove normal tissue regions, with the first step cropping images based on prostate segmentation and the second step using MSR-CNN to further locate the DILs. The binary masks of DILs and prostates of testing patients are generated on the PET/CT images by the trained model. For evaluation, we retrospectively investigated 49 prostate cancer patients with PET/CT images acquired. The prostate and DILs of each patient were contoured by radiation oncologists and set as the ground truths and targets. We used five-fold cross-validation and a hold-out test to train and evaluate our method. The mean surface distance and DSC values were 0.666 ± 0.696 mm and 0.932 ± 0.059 for the prostate and 0.814 ± 1.002 mm and 0.801 ± 0.178 for the DILs among all 49 patients. The proposed method has shown promise for facilitating prostate and DIL delineation for DIL focal boost prostate radiation therapy.
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Affiliation(s)
- Luke A. Matkovic
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- School of Mechanical Engineering, Georgia Institute of
Technology, Atlanta, GA
| | - Tonghe Wang
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
| | - Yang Lei
- Department of Radiation Oncology, Emory University,
Atlanta, GA
| | | | | | | | - Justin Roper
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- School of Mechanical Engineering, Georgia Institute of
Technology, Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
| | - Jeffery D. Bradley
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
| | - Tian Liu
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
| | - David M. Schuster
- Department of Radiology and Imaging Sciences, Emory
University, Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
| | - Xiaofeng Yang
- Department of Radiation Oncology, Emory University,
Atlanta, GA
- School of Mechanical Engineering, Georgia Institute of
Technology, Atlanta, GA
- Winship Cancer Institute, Emory University, Atlanta,
GA
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Dinçer S, Uysal E, Berber T, Akboru MH. The efficacy and tolerability of ultra-hypofractionated radiotherapy in low-intermediate risk prostate cancer patients: single center experience. Aging Male 2021; 24:50-57. [PMID: 34233569 DOI: 10.1080/13685538.2021.1948992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND We aimed to investigate the efficacy and tolerability of ultra-hypofractionated radiotherapy (UHRT) in the treatment of low and intermediate-risk prostate cancer patients. METHODS This retrospective study was conducted using data derived from 44 patients who underwent UHRT, and toxicity assessment and clinical response were investigated. Treatment consisted of 35-36.25 Gy in 5 fractions using stereotactic ablative radiotherapy (SABR) with the Linac-based delivery system. RESULTS The median duration of follow-up was 52 months (8-68 months) and the median age was 71.5 years (54-85 years). Twenty-seven patients were assigned as intermediate-risk, whereas 17 patients had low-risk. The 5-year overall survival rate was 87.8%, while the 5-year biochemical recurrence-free survival (bRFS) rate was 97.4%. Acute grade 3 genitourinary (GU) side effect was not observed in any patient, whereas acute gastrointestinal (GI) system grade 3 side effect was seen in 6.8% of the patients. Late grade 3 GU and GI side effects were seen in 4.6% and 6.8% of the patients, respectively. In patients with planning target volume (PTV) ≥85 ml, acute grade ≥2 GU side effects were more common (p=.034). CONCLUSION Our data demonstrated that UHRT administered with volumetric arc therapy (VMAT) can be recommended for selected patients with low-intermediate risk prostate cancer. Further prospective, multicentric, controlled trials on larger series are warranted to reach more accurate conclusions.
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Affiliation(s)
- Selvi Dinçer
- Department of Radiation Oncology, University of Health Science Prof. Dr. CemilTascioglu City Hospital, Istanbul, Turkey
| | - Emre Uysal
- Department of Radiation Oncology, University of Health Science Prof. Dr. CemilTascioglu City Hospital, Istanbul, Turkey
| | - Tanju Berber
- Department of Radiation Oncology, University of Health Science Prof. Dr. CemilTascioglu City Hospital, Istanbul, Turkey
| | - Mustafa Halil Akboru
- Department of Radiation Oncology, University of Health Science Prof. Dr. CemilTascioglu City Hospital, Istanbul, Turkey
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Zamboglou C, Spohn SKB, Adebahr S, Huber M, Kirste S, Sprave T, Gratzke C, Chen RC, Carl EG, Weber WA, Mix M, Benndorf M, Wiegel T, Baltas D, Jenkner C, Grosu AL. PSMA-PET/MRI-Based Focal Dose Escalation in Patients with Primary Prostate Cancer Treated with Stereotactic Body Radiation Therapy (HypoFocal-SBRT): Study Protocol of a Randomized, Multicentric Phase III Trial. Cancers (Basel) 2021; 13:cancers13225795. [PMID: 34830950 PMCID: PMC8616152 DOI: 10.3390/cancers13225795] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/08/2021] [Accepted: 11/16/2021] [Indexed: 02/07/2023] Open
Abstract
Technical advances in radiotherapy (RT) treatment planning and delivery have substantially changed RT concepts for primary prostate cancer (PCa) by (i) enabling a reduction of treatment time, and by (ii) enabling safe delivery of high RT doses. Several studies proposed a dose-response relationship for patients with primary PCa and especially in patients with high-risk features, as dose escalation leads to improved tumor control. In parallel to the improvements in RT techniques, diagnostic imaging techniques like multiparametric magnetic resonance imaging (mpMRI) and positron-emission tomography targeting prostate-specific-membrane antigen (PSMA-PET) evolved and enable an accurate depiction of the intraprostatic tumor mass for the first time. The HypoFocal-SBRT study combines ultra-hypofractionated RT/stereotactic body RT, with focal RT dose escalation on intraprostatic tumor sides by applying state of the art diagnostic imaging and most modern RT concepts. This novel strategy will be compared with moderate hypofractionated RT (MHRT), one option for the curative primary treatment of PCa, which has been proven by several prospective trials and is recommended and carried out worldwide. We suspect an increase in relapse-free survival (RFS), and we will assess quality of life in order to detect potential changes.
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Affiliation(s)
- Constantinos Zamboglou
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
- Berta-Ottenstein-Programme, Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- German Oncology Center, European University of Cyprus, Limassol 4108, Cyprus
| | - Simon K. B. Spohn
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
- Berta-Ottenstein-Programme, Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- Correspondence:
| | - Sonja Adebahr
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
| | - Maria Huber
- Clinical Trials Unit, Faculty of Medicine, Medical Center, University of Freiburg, 79110 Freiburg, Germany; (M.H.); (C.J.)
| | - Simon Kirste
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
| | - Tanja Sprave
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
| | - Christian Gratzke
- Department of Urology, Faculty of Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany;
| | - Ronald C. Chen
- Department of Radiation Oncology, University of Kansas Cancer Center, Kansas City, KS 66160, USA;
| | | | - Wolfgang A. Weber
- Department of Nuclear Medicine, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, 81675 Munich, Germany;
| | - Michael Mix
- Department of Nuclear Medicine, Faculty of Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany;
| | - Matthias Benndorf
- Department of Radiology, Faculty of Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany;
| | - Thomas Wiegel
- Department of Radiation Oncology, University Hospital Ulm, 89081 Ulm, Germany;
| | - Dimos Baltas
- Division of Medical Physics, Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany;
| | - Carolin Jenkner
- Clinical Trials Unit, Faculty of Medicine, Medical Center, University of Freiburg, 79110 Freiburg, Germany; (M.H.); (C.J.)
| | - Anca L. Grosu
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.Z.); (S.A.); (S.K.); (T.S.); (A.L.G.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
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Moll M, Renner A, Kirisits C, Paschen C, Zaharie A, Goldner G. Comparison of EBRT and I-125 seed brachytherapy concerning outcome in intermediate-risk prostate cancer. Strahlenther Onkol 2021; 197:986-992. [PMID: 34351453 PMCID: PMC8547207 DOI: 10.1007/s00066-021-01815-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/01/2021] [Indexed: 10/26/2022]
Abstract
PURPOSE This study's objective was the comparison of external beam radiotherapy (EBRT) and I‑125 seed brachytherapy regarding clinical outcome and development of side effects. PATIENTS AND METHODS In all, 462 localized intermediate-risk prostate cancer patients treated between 2000 and 2019 at our department using either I‑125 seed brachytherapy or EBRT with a dose of 74 or 78 Gy were included: 297 patients were treated with EBRT and 165 with seeds. Biochemical no evidence of disease (bNED) rates according to Phoenix definition as well as late gastrointestinal and urogenital side effects (EORTC/RTOG) were assessed. RESULTS Patients were followed up yearly with a median follow-up of 54 (3-192) months. Observed bNED rates for 74 Gy, 78 Gy and seeds were 87, 92, and 88% after 5 years and 71, 85, and 76% after 9 years, respectively. No significant differences were found comparing seeds with 74 Gy (p = 0.81) and 78 Gy (p = 0.19), as well as between 74 and 78 Gy (p = 0.32). Concerning gastrointestinal side effects, EBRT showed significantly higher rates of RTOG grade ≥ 2 toxicity compared to seeds, but at no point of the follow-up more than 10% of all patients. However, genitourinary side effects were significantly more prevalent in patients treated with seeds, with 33% RTOG grade ≥ 2 toxicity 12 months after treatment. Nevertheless, both types of side effects decreased over time. CONCLUSION Favorable intermediate-risk prostate cancer patients can be treated either by external beam radiotherapy (74/78 Gy) or permanent interstitial seed brachytherapy.
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Affiliation(s)
- Matthias Moll
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria.
| | - Andreas Renner
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
| | - Christian Kirisits
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
| | - Christopher Paschen
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Alexandru Zaharie
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
| | - Gregor Goldner
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
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Bao A, Barsky AR, Maxwell R, Bekelman JE, Both S, Christodouleas JP, Deville C, Fang P, Tochner ZA, Vapiwala N. Long-term Clinical Outcomes in Favorable Risk Prostate Cancer Patients Receiving Proton Beam Therapy. Int J Part Ther 2021; 8:14-24. [PMID: 35530185 PMCID: PMC9009454 DOI: 10.14338/ijpt-21-00016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/19/2021] [Indexed: 11/21/2022] Open
Abstract
Purpose Long-term data regarding the disease control outcomes of proton beam therapy (PBT) for patients with favorable risk intact prostate cancer (PC) are limited. Herein, we report our institution's long-term disease control outcomes in PC patients with clinically localized disease who received PBT as primary treatment. Methods One hundred sixty-six favorable risk PC patients who received definitive PBT to the prostate gland at our institution from 2010 to 2012 were retrospectively assessed. The outcomes studied were biochemical failure-free survival (BFFS), biochemical failure, local failure, regional failure, distant failure, PC-specific survival, and overall survival. Patterns of failure were also analyzed. Multivariate Cox proportional hazards modeling was used to estimate independent predictors of BFFS. Results The median length of follow-up was 8.3 years (range, 1.2–10.5 years). The majority of patients had low-risk disease (58%, n = 96), with a median age of 64 years at the onset of treatment. Of 166 treated men, 13 (7.8%), 8 (4.8%), 2 (1.2%) patient(s) experienced biochemical failure, local failure, regional failure, respectively. Regional failure was seen in an obturator lymph node in 1 patient and the external iliac lymph nodes in the other. None of the patients experienced distant failure. There were 5 (3.0%) deaths, none of which were due to PC. The 5- and 8-year BFFS rate were 97% and 92%, respectively. None of the clinical disease characteristics or treatment-related factors assessed were associated with BFFS on multivariate Cox proportional hazards modeling (all P > .05). Conclusion Disease control rates reported in our assessment of PBT were similar to those reported in previous clinically localized intact PC analyses, which used intensity-modulated radiotherapy, three-dimensional conformal radiotherapy, or radical prostatectomy as definitive therapy. In addition, BFFS rates were similar, if not improved, to previous PBT studies.
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Affiliation(s)
- Alicia Bao
- Ohio State College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Andrew R. Barsky
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Russell Maxwell
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Justin E. Bekelman
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Stefan Both
- Department of Radiation Oncology, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Curtiland Deville
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Penny Fang
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Zelig A. Tochner
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Neha Vapiwala
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
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Yang DM, Alfano R, Bauman G, Thiessen JD, Chin J, Pautler S, Moussa M, Gomez JA, Rachinsky I, Gaed M, Chung KJ, Ward A, Lee TY. Short-duration dynamic [ 18F]DCFPyL PET and CT perfusion imaging to localize dominant intraprostatic lesions in prostate cancer: validation against digital histopathology and comparison to [ 18F]DCFPyL PET/MR at 120 minutes. EJNMMI Res 2021; 11:107. [PMID: 34652551 PMCID: PMC8519985 DOI: 10.1186/s13550-021-00844-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/27/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose Localized prostate cancer (PCa) in patients is characterized by a dominant focus in the gland (dominant intraprostatic lesion, DIL). Accurate DIL identification may enable more accurate diagnosis and therapy through more precise targeting of biopsy, radiotherapy and focal ablative therapies. The goal of this study is to validate the performance of [18F]DCFPyL PET and CT perfusion (CTP) for detecting and localizing DIL against digital histopathological images. Methods Multi-modality image sets: in vivo T2-weighted (T2w)-MRI, 22-min dynamic [18F]DCFPyL PET/CT, CTP, and 2-h post-injection PET/MR were acquired in patients prior to radical prostatectomy. The explanted gland with implanted fiducial markers was imaged with T2w-MRI. All images were co-registered to the pathologist-annotated digital images of whole-mount mid-gland histology sections using fiducial markers and anatomical landmarks. Regions of interest encompassing DIL and non-DIL tissue were drawn on the digital histopathological images and superimposed on PET and CTP parametric maps. Logistic regression with backward elimination of parameters was used to select the most sensitive parameter set to distinguish DIL from non-DIL voxels. Leave-one-patient-out cross-validation was performed to determine diagnostic performance. Results [18F]DCFPyL PET and CTP parametric maps of 15 patients were analyzed. SUVLate and a model combining Ki and k4 of [18F]DCFPyL achieved the most accurate performance distinguishing DIL from non-DIL voxels. Both detection models achieved an AUC of 0.90 and an error rate of < 10%. Compared to digital histopathology, the detected DILs had a mean dice similarity coefficient of 0.8 for the Ki and k4 model and 0.7 for SUVLate. Conclusions We have validated using co-registered digital histopathological images that parameters from kinetic analysis of 22-min dynamic [18F]DCFPyL PET can accurately localize DILs in PCa for targeting of biopsy, radiotherapy, and focal ablative therapies. Short-duration dynamic [18F]DCFPyL PET was not inferior to SUVLate in this diagnostic task. Clinical trial registration number: NCT04009174 (ClinicalTrials.gov).
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Affiliation(s)
- Dae-Myoung Yang
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada.,Robarts Research Institute, The University of Western Ontario, London, ON, Canada.,Imaging Program, Lawson Health Research Institute, 750 Base Line Road E, London, ON, N6C 2R5, Canada.,Department of Radiation Oncology, Fox Chase Cancer Center, 333 Cottman Ave, Philadelphia, PA, 19111, USA
| | - Ryan Alfano
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada.,London Health Sciences Centre, London, ON, Canada.,Baines Imaging Research Laboratory, London, ON, Canada
| | - Glenn Bauman
- London Health Sciences Centre, London, ON, Canada.,Department of Oncology, The University of Western Ontario, London, ON, Canada
| | - Jonathan D Thiessen
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada.,Imaging Program, Lawson Health Research Institute, 750 Base Line Road E, London, ON, N6C 2R5, Canada.,Department of Medical Imaging, The University of Western Ontario, London, ON, Canada
| | - Joseph Chin
- London Health Sciences Centre, London, ON, Canada.,Department of Oncology, The University of Western Ontario, London, ON, Canada.,Department of Surgery, The University of Western Ontario, London, ON, Canada
| | - Stephen Pautler
- Department of Oncology, The University of Western Ontario, London, ON, Canada.,Department of Surgery, The University of Western Ontario, London, ON, Canada.,St. Joseph' Health Care, London, ON, Canada
| | - Madeleine Moussa
- London Health Sciences Centre, London, ON, Canada.,Department of Pathology and Laboratory Medicine, The University of Western Ontario, London, ON, Canada
| | - Jose A Gomez
- London Health Sciences Centre, London, ON, Canada.,Department of Pathology and Laboratory Medicine, The University of Western Ontario, London, ON, Canada
| | - Irina Rachinsky
- London Health Sciences Centre, London, ON, Canada.,Department of Medical Imaging, The University of Western Ontario, London, ON, Canada
| | - Mena Gaed
- Department of Pathology and Laboratory Medicine, The University of Western Ontario, London, ON, Canada
| | - Kevin J Chung
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada.,Robarts Research Institute, The University of Western Ontario, London, ON, Canada.,Imaging Program, Lawson Health Research Institute, 750 Base Line Road E, London, ON, N6C 2R5, Canada
| | - Aaron Ward
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada.,London Health Sciences Centre, London, ON, Canada.,Baines Imaging Research Laboratory, London, ON, Canada.,Department of Oncology, The University of Western Ontario, London, ON, Canada
| | - Ting-Yim Lee
- Department of Medical Biophysics, The University of Western Ontario, London, ON, Canada. .,Robarts Research Institute, The University of Western Ontario, London, ON, Canada. .,Imaging Program, Lawson Health Research Institute, 750 Base Line Road E, London, ON, N6C 2R5, Canada. .,Department of Oncology, The University of Western Ontario, London, ON, Canada. .,Department of Medical Imaging, The University of Western Ontario, London, ON, Canada.
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Gozal F, Gondhowiardjo SA, Kodrat H, Wibowo WE. Dosimetric analysis of three-dimensional conformal radiotherapy, intensity-modulated radiotherapy-step and shoot, helical tomotherapy, and volumetric modulated arc therapy in prostate cancer radiotherapy. J Cancer Res Ther 2021; 17:893-900. [PMID: 34528538 DOI: 10.4103/jcrt.jcrt_57_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Introduction There is limited study comparing dosimetry parameters in detail. In regard to prostate cancer, there are four different techniques, namely three-dimensional conformal radiotherapy (3D-CRT), intensity-modulated radiotherapy-step and shoot (IMRT-SS), IMRT-helical tomotherapy (HT), and volumetric-modulated arc therapy (VMAT). Materials and Methods Experimental study with intervention on ten prostate cancer patients' computed tomography planning data. 78 Gy dose in 39 fractions was given for planning target volume.Experimental study with intervention on ten prostate cancer patients' computed tomography planning data. 78 Gy dose in 39 fractions was given for planning target volume. Results The mean V75 Gy rectum and bladder between 3D-CRT and the other three abovementioned techniques all showed significant results (P < 0.05). V5 Gy remaining volume at risk (RVR) between 3D-CRT versus VMAT and HT, IMRT-SS versus HT, and VMAT versus HT is statistically significant (P < 0.0001). The longest radiation time was done with HT (mean 4.70 ± 0.84 min). Conclusion V75 Gy rectum bladder between 3D-CRT techniques differ significantly compared to the three other techniques and may not be suitable to the implementation of escalation doses. The HT technique produced the highest V5 Gy RVR and needed the highest monitor unit amount and the longest radiation duration. The VMAT technique was considered capable of realizing dose escalation in prostate cancer radiotherapy by minimizing toxicity in the rectum and bladder with the shortest radiation duration.
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Affiliation(s)
- Fenny Gozal
- Radiation Oncology Department, Rumah Sakit Cipto Mangunkusumo, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | | | - Henry Kodrat
- Radiation Oncology Department, Rumah Sakit Cipto Mangunkusumo, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Wahyu Edy Wibowo
- Radiation Oncology Department, Rumah Sakit Cipto Mangunkusumo, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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Lei Y, Wang T, Fu Y, Roper J, Jani AB, Liu T, Patel P, Yang X. Catheter position prediction using deep-learning-based multi-atlas registration for high-dose rate prostate brachytherapy. Med Phys 2021; 48:7261-7270. [PMID: 34480801 DOI: 10.1002/mp.15206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/26/2021] [Accepted: 08/28/2021] [Indexed: 12/19/2022] Open
Abstract
PURPOSE High-dose-rate (HDR) prostate brachytherapy involves treatment catheter placement, which is currently empirical and physician dependent. The lack of proper catheter placement guidance during the procedure has left the physicians to rely on a heuristic thinking-while-doing technique, which may cause large catheter placement variation and increased plan quality uncertainty. Therefore, the achievable dose distribution could not be quantified prior to the catheter placement. To overcome this challenge, we proposed a learning-based method to provide HDR catheter placement guidance for prostate cancer patients undergoing HDR brachytherapy. METHODS The proposed framework consists of deformable registration via registration network (Reg-Net), multi-atlas ranking, and catheter regression. To model the global spatial relationship among multiple organs, binary masks of the prostate and organs-at-risk are transformed into distance maps, which describe the distance of each local voxel to the organ surfaces. For a new patient, the generated distance map is used as fixed image. Reg-Net is utilized to deformably register the distance maps from multi-atlas set to match this patient's distance map and then bring catheter maps from multi-atlas to this patient via spatial transformation. Several criteria, namely prostate volume similarity, multi-organ semantic image similarity, and catheter position criteria (far from the urethra and within the partial prostate), are used for multi-atlas ranking. The top-ranked atlas' deformed catheter positions are selected as the predicted catheter positions for this patient. Finally, catheter regression is used to refine the final catheter positions. A retrospective study on 90 patients with a fivefold cross-validation scheme was used to evaluate the proposed method's feasibility. In order to investigate the impact of plan quality from the predicted catheter pattern, we optimized the source dwell position and time for both the clinical catheter pattern and predicted catheter pattern with the same optimization settings. Comparisons of clinically relevant dose volume histogram (DVH) metrics were completed. RESULTS For all patients, on average, both the clinical plan dose and predicted plan dose meet the common dose constraints when prostate dose coverage is kept at V100 = 95%. The plans from the predicted catheter pattern have slightly higher hotspot in terms of V150 by 5.0% and V200 by 2.9% on average. For bladder V75, rectum V75, and urethra V125, the average difference is close to zero, and the range of most patients is within ±1 cc. CONCLUSION We developed a new catheter placement prediction method for HDR prostate brachytherapy based on a deep-learning-based multi-atlas registration algorithm. It has great clinical potential since it can provide catheter location estimation prior to catheter placement, which could reduce the dependence on physicians' experience in catheter implantation and improve the quality of prostate HDR treatment plans. This approach merits further clinical evaluation and validation as a method of quality control for HDR prostate brachytherapy.
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Affiliation(s)
- Yang Lei
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Tonghe Wang
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Yabo Fu
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Justin Roper
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Ashesh B Jani
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Tian Liu
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Pretesh Patel
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Xiaofeng Yang
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
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Burgess L, Roy S, Morgan S, Malone S. A Review on the Current Treatment Paradigm in High-Risk Prostate Cancer. Cancers (Basel) 2021; 13:4257. [PMID: 34503067 PMCID: PMC8428221 DOI: 10.3390/cancers13174257] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 01/17/2023] Open
Abstract
High-risk prostate cancer is traditionally treated with a combination of radiotherapy (RT) and androgen deprivation therapy (ADT). However, recent advancements in systemic treatment and radiotherapy have widened the spectrum of treatment for this patient population. Use of image guidance and intensity modulation, as well as the incorporation of brachytherapy, has led to safe radiotherapy dose escalation with reduced risk of recurrence. Clinical trials have helped define the role of pelvic nodal radiotherapy, the role of stereotactic ablative radiotherapy, and the optimal duration and sequencing of ADT in combination with radiotherapy. Emerging evidence has redefined the role of surgery in this cohort. Contemporary clinical trials have identified new systemic therapy options in high-risk prostate cancer. Finally, new imaging modalities including multi-parametric MRI and molecular imaging and genomic classifiers have ushered a new era in patient selection, risk stratification, and treatment tailoring.
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Affiliation(s)
- Laura Burgess
- Division of Radiation Oncology, Department of Radiology, University of Ottawa, Ottawa, ON K1H 8L6, Canada;
- Radiation Medicine Program, The Ottawa Hospital Cancer Centre, Ottawa, ON K1H 8L6, Canada
| | - Soumyajit Roy
- Department of Radiation Oncology, Rush University Medical Center, Chicago, IL 60605, USA;
| | - Scott Morgan
- Division of Radiation Oncology, Department of Radiology, University of Ottawa, Ottawa, ON K1H 8L6, Canada;
- Radiation Medicine Program, The Ottawa Hospital Cancer Centre, Ottawa, ON K1H 8L6, Canada
| | - Shawn Malone
- Division of Radiation Oncology, Department of Radiology, University of Ottawa, Ottawa, ON K1H 8L6, Canada;
- Radiation Medicine Program, The Ottawa Hospital Cancer Centre, Ottawa, ON K1H 8L6, Canada
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Hoffman KE, Johnstone P. A 25-year perspective on the evolution of radiation treatment of urologic cancers. Urol Oncol 2021; 39:577-581. [PMID: 34325987 DOI: 10.1016/j.urolonc.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 11/17/2022]
Abstract
Advances in radiotherapy technology and technique over the last 3 decades have revolutionized radiation treatment options for genitourinary malignancies. The development of more focused and accurate radiation treatment has facilitated safe delivery of dose-escalated treatment that improves disease control and the development of shorter-duration hypofractionated treatment regimens that are more convenient for patients and improve access to treatment. The management of oligometastatic disease is evolving with ablative treatment of oligometastasis and the primary for select patients and shorter-duration palliative treatment regimens. Work is ongoing to personalize radiation treatment regimens for genitourinary malignancies based on molecular biomarkers.
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Affiliation(s)
- Karen E Hoffman
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Peter Johnstone
- Department of Radiation Oncology, Moffitt Cancer Center, Tampa, FL
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