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Arians N, Lindel K, Krisam J, Oelmann-Avendano JT, Meixner E, König L, Hoerner-Rieber J, Wark A, Forster T, Weykamp F, Lang K, Schneeweiss A, Ellerbrock M, Mielke T, Herfarth K, Debus J. Treatment Tolerability and Toxicity of Postoperative Proton Beam Therapy for Gynecologic Malignancies: Results of the Prospective Phase 2 APROVE-trial. Int J Radiat Oncol Biol Phys 2023:S0360-3016(23)00012-3. [PMID: 36642110 DOI: 10.1016/j.ijrobp.2023.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/21/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
PURPOSE The APROVE study is a prospective one-arm phase-2 study investigating the safety and treatment tolerability of postoperative proton beam therapy in women with uterine cervical or endometrial cancer. In this analysis, we report the primary study endpoint of safety and treatment tolerability as well as toxicity rates and progression-free survival (PFS). METHODS AND MATERIALS 25 patients were treated with postoperative proton beam therapy with a total dose of 45 to 50.4 Gy (RBE) in 5 to 6 × 1.8 Gy (RBE) fractions weekly using active raster-scanning intensity modulated proton beam therapy (IMPT). Sequential or simultaneous platinum-based chemotherapy was administered if indicated. The primary endpoint was defined as the lack of any acute ≥grade 3 gastrointestinal (GI) or urogenital (GU) toxicity according to the Common Terminology Criteria for Adverse Events v 4.0 or premature treatment abortion. Secondary endpoints were clinical symptoms and toxicity, quality of life, and PFS. RESULTS All patients completed IMPT according to the protocol, with a median treatment duration of 43 days (range, 33 to 51 days). No patient developed gastrointestinal or genitourinary toxicity ≥grade 3, and the treatment tolerability rate was 100%. Therefore, the null hypothesis H0: Tolerability Rate ≤80% could be rejected in favor of the alternative hypothesis H1: Tolerability rate >80% using an exact binomial test with a one-sided significance level of α = 10% (one-sided P value P = .0059). The median follow-up time after the end of IMPT was 25.1 months (range, 20.2 to 50.3 months). 18 of 25 (75%) patients completed the study follow-up of 24 months. 7 patients had progressive disease. Kaplan-Meier-estimated mean PFS was 39.9 months (95% confidence interval: 33.37 to 46.5 months). CONCLUSIONS Postoperative IMPT is a safe treatment option for cervical and endometrial cancer patients, with only low-grade acute and late toxicities. Larger randomized trials are necessary to further assess the potential of IMPT and improve patient selection.
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Affiliation(s)
- Nathalie Arians
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany.
| | - Katja Lindel
- Municipal Hospital Karlsruhe, Department of Radiation Oncology, Karlsruhe, Germany
| | - Johannes Krisam
- Institute for Medical Biometry, Heidelberg University, Heidelberg, Germany
| | | | - Eva Meixner
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Laila König
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Antje Wark
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Tobias Forster
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Fabian Weykamp
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany
| | - Andreas Schneeweiss
- Division of Gynecologic Oncology, National Center for Tumor Diseases, Heidelberg, Germany
| | - Malte Ellerbrock
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Mielke
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Heidelberg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Heidelberg, Germany
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Salome P, Walz D, Sforazzini F, Kudak A, Dostal M, Regnery S, Schlamp K, Thomas M, Herth F, Jäkel O, Heußel C, Hoerner-Rieber J, Debus J, Knoll M, Abdollahi A. Multi-Omics Classifier of Tumor Recurrence vs. Radiation-Induced Lung Fibrosis in NSCLC Patients Treated with SBRT. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Forster T, Hommertgen A, Häfner M, Arians N, Laila K, Harrabi S, Schlampp I, Köhler C, Heinrich V, Weidner N, Hüsing J, Golatta M, Sohn C, Heil J, Hof H, Krug D, Debus J, Hoerner-Rieber J. Quality of Life After Simultaneously Integrated Boost With Intensity-Modulated vs. Conventional Radiotherapy Followed by Sequential Boost for Adjuvant Treatment of Breast Cancer: 2-Year Results of the Multicenter Randomized IMRT-MC2 Trial. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Akbaba S, Bostel T, Hoerner-Rieber J, Nicolay N, Forster T, Held T, Lang K, Adeberg S, Debus J. OC-0572: Treatment outcome of 207 patients with adenoid cystic carcinoma of the major salivary glands. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00594-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Arians N, Oelmann-Avendano JT, Schmitt D, Meixner E, Wark A, Hoerner-Rieber J, El Shafie RA, Lang K, Wallwiener M, Debus J. Evaluation of Uterine Brachytherapy as Primary Treatment Option for Elderly Patients with Medically Inoperable Endometrial Cancer-A Single-Center Experience and Review of the Literature. Cancers (Basel) 2020; 12:cancers12082301. [PMID: 32824243 PMCID: PMC7463748 DOI: 10.3390/cancers12082301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/10/2020] [Accepted: 08/13/2020] [Indexed: 01/16/2023] Open
Abstract
We aimed to gain more evidence regarding the feasibility, toxicity, and oncological outcome of primary brachytherapy in patients with medically inoperable endometrial cancer. Thirteen patients receiving primary brachytherapy ± external beam radiotherapy (EBRT) for endometrial cancer due to medical inoperability were identified. The Kaplan–Meier method was used to estimate overall survival (OS), progression-free survival (PFS), and local failure-free survival (LFFS). Univariate outcome analyses were performed using the log-rank test. Peri-interventional complications, acute and chronic toxicities were evaluated. Additionally, we performed a Pubmed search and review of the literature of the last 10 years. Mean age at time of diagnosis was 73.9 years (60.4–87.1 years). Eleven patients were staged FIGO IA/B and one patient each with FIGO IIIA and IIIC. Kaplan–Meier-estimated 2-/5-year LFFS were 76.2%/56.4%, respectively. High grading correlated with a worse LFFS (p = 0.069). Kaplan–Meier-estimated 2-/5-year PFS were 76.9%/53.8% and 2-/5-year-OS were 76.9%/69.2%, respectively. No acute toxicities > grade II and only two late toxicities grade II/III occurred. We observed three peri-interventional complications. The available evidence suggests high rates of local control after definitive brachytherapy for inoperable endometrial cancer with a favorable toxicity profile. Definitive brachytherapy +/− EBRT should be considered as the preferred approach for this patient group.
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Affiliation(s)
- Nathalie Arians
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
- Correspondence:
| | - Jan Tobias Oelmann-Avendano
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Department of Radiation Oncology, Göttingen University Hospital, 37075 Göttingen, Germany
| | - Daniela Schmitt
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Department of Radiation Oncology, Göttingen University Hospital, 37075 Göttingen, Germany
| | - Eva Meixner
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
| | - Antje Wark
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Rami A. El Shafie
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
| | - Markus Wallwiener
- Department of Gynecology and Obstetrics, Heidelberg University Hospital, 69120 Heidelberg, Germany;
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, 69120 Heidelberg, Germany; (J.T.O.-A.); (D.S.); (E.M.); (A.W.); (J.H.-R.); (R.A.E.S.); (K.L.); (J.D.)
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
- National Center for Tumor diseases (NCT), 69120 Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
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Akbaba S, Heusel A, Mock A, Held T, Lang K, Hoerner-Rieber J, Forster T, Katayama S, Kargus S, Rieken S, Plinkert P, Herfarth K, Debus J, Adeberg S. The impact of age on the outcome of patients treated with radiotherapy for mucoepidermoid carcinoma (MEC) of the salivary glands in the head and neck: A 15-year single-center experience. Oral Oncol 2019; 97:115-123. [PMID: 31494395 DOI: 10.1016/j.oraloncology.2019.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/02/2019] [Accepted: 08/25/2019] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Data regarding treatment and survival outcome of patients with mucoepidermoid carcinoma of the head and neck are limited to case reports and case series. As a consequence of lacking evidence, treatment guidelines do not exist. We aimed to analyze the effect of modern radiotherapy in form of intensity modulated radiotherapy (IMRT) either with simultaneously integrated boost or carbon ion boost on local control and survival for a relatively large patient collective. MATERIALS AND METHODS Patient records of 62 consecutive patients treated with postoperative (n = 53, 85%) or definitive (n = 9, 15%) radiotherapy between 2004 and 2019 were analyzed retrospectively. Kaplan-Meier estimates for overall survival (OS), distant progression-free survival (PFS), local control (LC) and locoregional control (LRC) were statistically calculated and prognostic factors were identified using the log-rank test. Toxicity was assessed according to the Common Terminology Criteria for Adverse Events (CTCAE). RESULTS The median follow-up was 47 months (range, 4-188 months). The 3-year OS, DPFS, LC and LRC, estimated by Kaplan-Meier curves, were 82%, 87%, 89% and 92%, the estimated 5-year OS, DPFS, LC and LRC were 78%, 87%, 84% and 88%, respectively. In univariate analysis, age >56 years (vs. age ≤56 years) was identified as the only independent negative prognostic factor for decreased OS (HR = 1.078; 95%-CI = 1.029-1.130; p = 0.001), DPFS (HR = 1.055; 95%-CI = 1.000-1.114; p = 0.051) and LC (HR = 1.087; 95%-CI = 1.022-1.157; p = 0.008). Treatment was well tolerated without any grade ≥4 toxicity. Acute and late grade 3 toxicities were rare with 16% acute (n = 10) and 13% late toxicities (n = 8). CONCLUSION Radiotherapy with intensity modulated radiotherapy including either simultaneously integrated photon boost or active raster-scanning carbon ion boost for mucoepidermoid carcinomas of the head and neck resulted in excellent survival outcome and locoregional control with moderate toxicity. However, patients older than 56 years seem to have a disadvantage in all calculated endpoints (OS, DPFS, LRC) due to frequent local and distant relapses. CONDENSED ABSTRACT Modern radiotherapy with intensity modulated radiotherapy including either a simultaneously integrated photon boost or carbon ion boost for mucoepidermoid carcinoma results in excellent survival outcome and locoregional control with moderate toxicity. The 5-year OS, DPFS, LC and LRC, estimated by Kaplan-Meier curves, were 89%, 75%, 84% and 80%, respectively. Patients older than 56 years seem to have a disadvantage in all calculated endpoints (OS, DPFS, LRC).
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Affiliation(s)
- Sati Akbaba
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
| | - Astrid Heusel
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Andreas Mock
- Department of Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany; Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 460, 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany.
| | - Thomas Held
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Tobias Forster
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany.
| | - Sonja Katayama
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany.
| | - Steffen Kargus
- Department of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany.
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Peter Plinkert
- Department of Otorhinolaryngology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Juergen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Sebastian Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
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Akbaba S, Mock A, Hoerner-Rieber J, Held T, Katayama S, Forster T, Freudlsperger C, Rieken S, Herfarth K, Plinkert P, Debus J, Adeberg S. Treatment Outcome of a Combined Dose-Escalated Treatment Regime With Helical TomoTherapy® and Active Raster-Scanning Carbon Ion Boost for Adenocarcinomas of the Head and Neck. Front Oncol 2019; 9:755. [PMID: 31475108 PMCID: PMC6705231 DOI: 10.3389/fonc.2019.00755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/26/2019] [Indexed: 12/25/2022] Open
Abstract
Introduction: Data regarding treatment and survival outcome of patients with adenocarcinoma of the head and neck are limited to case reports and case series. As a consequence of lacking evidence, treatment guidelines do not exist. We aimed to analyze the effect of a bimodal irradiation regime with intensity modulated radiotherapy (IMRT) and carbon ion boost on local control (LC) and survival in adenocarcinoma patients for a large patient collective. Materials and Methods: Patient records of eighty consecutive patients treated between 2009 and 2018 were analyzed retrospectively and Kaplan-Meier estimates for LC, overall survival (OS) and progression-free survival (PFS) were compared among patients with salivary gland adenocarcinoma (SGAC), salivary duct adenocarcinoma (SDAC), and intestinal-type adenocarcinoma (ITAC) according to the World Health Organization (WHO). Prognostic factors were identified using the log-rank test and cox-regression modeling. Toxicity was assessed according to the Common Terminology Criteria for Adverse Events (CTCAE). Results: Median follow-up was 41 months. The 3-year and estimated 5-year Kaplan-Meier rates for all patients were 83 and 75% for LC, 74 and 50% for OS and 60 and 53% for PFS, respectively. While bimodal RT for ITAC resulted in a significantly decreased 3-year LC rate of 50 vs. 93% for each SGAC and SDAC (p < 0.01), no statistical significant survival differences could be identified across the three groups regarding OS (p = 0.08) and PFS (p = 0.063). 3-year OS was 88% for SGAC, 78% for SDAC and 67% for ITAC and 3-year PFS was 72% for SGAC, 53% for SDAC and 44% for ITAC, respectively. Nevertheless, in subgroup analysis, OS for ITAC was significantly worse compared to SGAC (p = 0.024). In multivariate analysis, bilateral tumor side (vs. unilateral) solely could be identified as independent negative prognostic factor for LC (p < 0.01). Treatment was well-tolerated with 21% acute (n = 17) and 25% (n = 20) late grade ≥3 toxicities. Conclusion: Radiotherapy including active raster-scanning carbon ion boost for relatively radio resistant adenocarcinomas of the head and neck resulted in favorable survival outcome for salivary gland and salivary duct adenocarcinomas with moderate toxicity. However, local control and prognosis for bilateral intestinal-type adenocarcinomas (ITAC) seem to remain low even after dose-escalation.
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Affiliation(s)
- Sati Akbaba
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
| | - Andreas Mock
- Department of Medical Oncology, National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Department of Translational Medical Oncology, National Center for Tumor Diseases Heidelberg, German Cancer Research Center, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center, Heidelberg, Germany
| | - Thomas Held
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
| | - Sonja Katayama
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
| | - Tobias Forster
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
| | - Christian Freudlsperger
- Department of Oral and Maxillofacial Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
- Department of Medical Oncology, National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
| | - Peter Plinkert
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
- Department of Medical Oncology, National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
| | - Sebastian Adeberg
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
- National Center for Tumor Diseases, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany
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Akbaba S, Oelmann-Avendano JT, Krug D, Arians N, Bostel T, Hoerner-Rieber J, Nicolay NH, Debus J, Lindel K, Foerster R. The impact of vaginal dilator use on vaginal stenosis and sexual quality of life in women treated with adjuvant radiotherapy for endometrial cancer. Strahlenther Onkol 2019; 195:902-912. [PMID: 30997541 DOI: 10.1007/s00066-019-01466-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 03/29/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Despite a lack of evidence and low compliance, current guidelines recommend the use of a vaginal dilator (VD) after pelvic radiotherapy (RT). We analyzed the effect of VD on vaginal stenosis (VS) and its influence on sexual quality of life (QoL) in women treated with adjuvant RT for endometrial cancer (EC). METHODS Between 2014 and 2015, 56 consecutive patients were instructed to use a VD after completion of treatment. The maximum diameter of the comfortably introducible VD was measured before and at 1 year after treatment. The degree of VS was evaluated clinically, and sexual QoL was assessed with the European Organisation for Research and Treatment of Cancer (EORTC) sexual functioning items before RT, during RT, at 6 weeks, and at 1 year after RT. RESULTS One year after RT, mean VD diameter had decreased by 2.7 ± 3.2 mm (p < 0.001) and 36 patients (64.3%) had clinical VS (grade I-III). A larger decrease in VD diameter correlated with a higher degree of clinical VS (p < 0.001). VD use (p = 0.81), RT modality (p = 0.68), and adjuvant ChT (p = 0.87) had no influence on VD diameter. Sexual activity decreased during RT and increased beyond pre-RT values 1 year after RT (p < 0.001). Sexual enjoyment decreased continuously during and after completion of RT (p = 0.013) and was influenced negatively by a higher degree of clinical VS (p = 0.01). CONCLUSION Almost two thirds of patients developed clinical VS 1 year after adjuvant RT for EC, and sexual enjoyment was substantially reduced by VS. The use of a VD after RT may not serve to prevent sexual impairments and VS.
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Affiliation(s)
- Sati Akbaba
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | - Jan T Oelmann-Avendano
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | - David Krug
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital Schleswig-Holstein, Arnold-Heller-Strasse 3, 24105, Kiel, Germany
| | - Nathalie Arians
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | - Tilman Bostel
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | - Nils H Nicolay
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany.,Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Department of Radiation Oncology, Freiburg University Medical Center, Robert-Koch-Strasse 3, 79106, Freiburg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany.,Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Katja Lindel
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany.,Department of Radiation Oncology, Staedtisches Klinikum Karlsruhe, Moltkestrasse 90, 76133, Karlsruhe, Germany
| | - Robert Foerster
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. .,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany. .,Department of Radiation Oncology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
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9
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Akbaba S, Held T, Lang K, Herfarth K, Hoerner-Rieber J, Plinkert P, Auffarth G, Rieken S, Debus J, Adeberg S. PO-172 Carbon ion radiotherapy in active raster- scanned technique for malignant lacrimal gland tumors. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30338-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Akbaba S, Held T, Lang K, Hoerner-Rieber J, Zaoui K, Forster T, Rieken S, Plinkert P, Debus J, Adeberg S. Salvage radiotherapy for recurrent hypopharyngeal and laryngeal squamous cell carcinoma (SCC) after first-line treatment with surgery alone: a 10-year single-centre experience. Radiat Oncol 2019; 14:34. [PMID: 30782197 PMCID: PMC6381740 DOI: 10.1186/s13014-019-1238-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/08/2019] [Indexed: 11/12/2022] Open
Abstract
Purpose Salvage surgery of recurrent hypopharyngeal and laryngeal squamous cell carcinoma (SCC) results in limited local control and survival rates. As a result of recent technological progress, radiotherapy (RT) has become a valuable, potentially curative therapeutic option. Thus, we aimed to determine prognostic factors for survival outcome in order to optimize patient selection for salvage radiotherapy after failure of first-line treatment with surgery alone in this special patient cohort. Methods Seventy-five patients (85% male, median age of 64 years) underwent salvage RT in a secondary setting for recurrent hypopharyngeal or laryngeal SCC after prior surgery alone between 2007 and 2017. On average, patients were treated with one prior surgery (range 1–4 surgeries). Median time between surgery and salvage RT was 7 months (range 1–47 months) for initially advanced tumors (T3/4, N+, extracapsular spread) and 18 months (range 5–333 months) for initially early stage tumors. The majority of patients received concomitant chemotherapy (n = 48; 64%) or other kind of systemic treatment concurrent to radiotherapy (n = 10; 13%). Results Median follow-up was 41 months (range 3–120 months). Overall, fifteen patients were diagnosed with local failure (all were in-field) at last follow-up (20%). Median time to recurrence was 35 months (range 3–120 months) and 3-year local progression-free survival (LPFS) was 75%, respectively. Dose-escalated RT with 70.4 Gy applied in 2.1 Gy or 2.2 Gy fractions corresponding an EQD2 > 70 Gy (p = 0.032) and the use of concomitant cisplatin weekly chemotherapy (p = 0.006) had a significant positive impact on LPFS. 3-year OS and DPFS were 76 and 85%, respectively. No toxicity-related deaths occurred. Reported grade > 3 side effects were rare (n = 4/70, 6%). Conclusion Salvage radiotherapy resulted in excellent local control rates while radiation dose and the use of cisplatin weekly chemotherapy were identified as prognostic factors for LPFS. Nevertheless, patient selection for curative salvage treatment remains challenging.
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Affiliation(s)
- Sati Akbaba
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120, Heidelberg, Germany
| | - Thomas Held
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Kristin Lang
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120, Heidelberg, Germany
| | - Karim Zaoui
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Tobias Forster
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120, Heidelberg, Germany
| | - Peter Plinkert
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120, Heidelberg, Germany
| | - Sebastian Adeberg
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. .,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. .,Heidelberg Ion-Beam Therapy Center (HIT), Im Neuenheimer Feld 450, 69120, Heidelberg, Germany.
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11
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Klement R, Hoerner-Rieber J, Adebahr S, Andratschke N, Blanck O, Boda-Heggemann J, Duma M, Eble M, Eich H, Flentje M, Gerum S, Hass P, Henkenberens C, Hildebrandt G, Imhoff D, Kahl K, Klass N, Krempien R, Lohaus F, Petersen C, Schrade E, Wendt T, Wittig A, Guckenberger M. Stereotactic body radiotherapy (SBRT) for multiple pulmonary oligometastases: Analysis of number and timing of repeat SBRT as impact factors on treatment safety and efficacy. Radiother Oncol 2018; 127:246-252. [DOI: 10.1016/j.radonc.2018.02.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/14/2018] [Accepted: 02/15/2018] [Indexed: 12/25/2022]
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12
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Bernhardt D, Sterzing F, Adeberg S, Herfarth K, Katayama S, Foerster R, Hoerner-Rieber J, König L, Debus J, Rieken S. Bimodality treatment of patients with pelvic adenoid cystic carcinoma with photon intensity-modulated radiotherapy plus carbon ion boost: a case series. Cancer Manag Res 2018; 10:583-588. [PMID: 29618938 PMCID: PMC5875408 DOI: 10.2147/cmar.s148395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Treatment of patients with pelvic adenoid cystic carcinoma (ACC) remains a challenge owing to the rarity of the disease, the lack of data, and the relative radioresistance of these tumors. Case reports This case series presents the results of three patients with recurrent or inoperable pelvic ACC treated with intensity-modulated radiotherapy (IMRT) plus carbon ion (C12) boost. Patients received C12 therapy at a dose of 3 Gray equivalents (GyE) (relative biological effectiveness [RBE]) per fraction up to 24 GyE RBE, followed by 50 GyE of photon IMRT in 25 fractions. Conclusion IMRT plus C12 ion boost as a definitive or adjuvant treatment for pelvic ACCs seems to be a promising therapeutic option. No unexpected toxicity was detected and the observed toxicity remained consistently low. The initial treatment response is promising and similar to that experienced for head and neck ACCs.
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Affiliation(s)
- Denise Bernhardt
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Florian Sterzing
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Radiation Oncology, Klinikum Kempten, Kempten, Germany
| | - Sebastian Adeberg
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Sonja Katayama
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Robert Foerster
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital of Zürich, Zürich, Switzerland
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Laila König
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
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13
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Bernhardt D, König L, Aufderstrasse S, Krisam J, Hoerner-Rieber J, Adeberg S, Bozorgmehr F, El Shafie R, Lang K, Kappes J, Thomas M, Herth F, Heußel CP, Warth A, Marcrom S, Debus J, Steins M, Rieken S. Generation of a New Disease-specific Prognostic Score for Patients With Brain Metastases From Small-cell Lung Cancer Treated With Whole Brain Radiotherapy (BMS-Score) and Validation of Two Other Indices. Clin Lung Cancer 2017; 19:340-345. [PMID: 29373273 DOI: 10.1016/j.cllc.2017.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/22/2017] [Accepted: 12/08/2017] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Patients with small-cell lung cancer (SCLC) demonstrate an exception in the treatment of brain metastases (BM), because in patients with SCLC whole brain radiotherapy (WBRT) only is the preferred treatment modality. The purpose of this study was to develop a prognostic score for patients with brain metastases from SCLC treated with WBRT. PATIENTS AND METHODS The present study was conducted utilizing a single-institution, previously described, retrospective database of patients with SCLC who were treated with WBRT (n = 221). Univariate and multivariate analyses were performed to generate the "brain metastases from SCLC score" (BMS score) based on favorable prognostic factors: Karnofsky performance status (KPS > 70), extracerebral disease status (stable disease/controlled), and time of appearance of BM (synchronous). Furthermore, the disease-specific graded prognostic assessment score as well as the recursive partitioning analysis (RPA) were performed and compared with the new BMS score by using the log-rank (Mantel-Cox) test. RESULTS BMS score and RPA showed the most significant differences between classes (P < .001). BMS score revealed a mean overall survival (OS) of 2.62 months in group I (0-1 points), 6.61 months in group II (2-3 points), and 12.31 months in group III (4 points). The BMS score also identified the group with the shortest survival (2.62 months in group I), and the numbers of patients in each group were most equally distributed with the BMS score. CONCLUSION The new BMS score was more prognostic than the RPA and disease-specific graded prognostic assessment scores. The BMS score is easy to use and reflects known prognostic factors in contemporary patients with SCLC treated with WBRT. Future studies are necessary to validate these findings.
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Affiliation(s)
- Denise Bernhardt
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Laila König
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Sophie Aufderstrasse
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Johannes Krisam
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Sebastian Adeberg
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Farastuk Bozorgmehr
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Translational Lung Research Centre Heidelberg (TLRC-H), Heidelberg, Germany; Member of the German Centre for Lung Research (DZL), Heidelberg, Germany
| | - Rami El Shafie
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Kristin Lang
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Jutta Kappes
- Department of Pneumology, Thoraxklinik, Heidelberg University, Heidelberg, Germany; Member of the German Centre for Lung Research (DZL), Heidelberg, Germany
| | - Michael Thomas
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Translational Lung Research Centre Heidelberg (TLRC-H), Heidelberg, Germany; Member of the German Centre for Lung Research (DZL), Heidelberg, Germany
| | - Felix Herth
- Department of Pneumology, Thoraxklinik, Heidelberg University, Heidelberg, Germany; Member of the German Centre for Lung Research (DZL), Heidelberg, Germany
| | - Claus Peter Heußel
- Member of the German Centre for Lung Research (DZL), Heidelberg, Germany; Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik at University of Heidelberg, Heidelberg, Germany; Diagnostic and Interventional Radiology at University of Heidelberg, Heidelberg, Germany
| | - Arne Warth
- Member of the German Centre for Lung Research (DZL), Heidelberg, Germany; Institute of Pathology, Heidelberg University, Heidelberg, Germany
| | - Samuel Marcrom
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL
| | - Jürgen Debus
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Martin Steins
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Translational Lung Research Centre Heidelberg (TLRC-H), Heidelberg, Germany
| | - Stefan Rieken
- University Hospital Heidelberg, Department of Radiation Oncology, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
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Hoerner-Rieber J, Duma M, Blanck O, Hildebrandt G, Wittig A, Lohaus F, Flentje M, Mantel F, Krempien R, Eble MJ, Kahl KH, Boda-Heggemann J, Rieken S, Guckenberger M. Stereotactic body radiotherapy (SBRT) for pulmonary metastases from renal cell carcinoma-a multicenter analysis of the German working group "Stereotactic Radiotherapy". J Thorac Dis 2017; 9:4512-4522. [PMID: 29268521 DOI: 10.21037/jtd.2017.10.108] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background Renal cell carcinoma (RCC) is traditionally considered to be radioresistant. Radiotherapy response rates are believed to improve with hypofractionated, high dose stereotactic body radiotherapy (SBRT). However, limited data exist regarding the role of SBRT in the treatment of pulmonary metastases. Methods The working group "Stereotactic Radiotherapy" of the German Society of Radiation Oncology analyzed its multi-institutional database of more than 700 patients who received SBRT for pulmonary metastases. Treatment was performed at 10 centers between 2001 and 2016. Patients with metastatic RCC were included in the study. Tumor characteristics, treatment details, and follow-up data including survival, local control (LC), distant metastases, and toxicity were evaluated. Results A total of 46 RCC patients treated with SBRT for 67 lung metastases were identified, who received a median total biologically effective dose (BEDiso) at planning target volume (PTV) isocenter of 117.0 Gy (range, 48.0-189.0 Gy). A median fractional dose of 20.8 Gy at isocenter (range, 6.0-37.9 Gy) was administered in a median number of 3 fractions (1-8 fractions). After a median follow-up time of 28.3 months for all patients, 1- and 3-year LC rates were 98.1% and 91.9%, with corresponding 1- and 3-year overall survival (OS) of 84.3% and 43.8%, respectively. Pulmonary metastases treated with BEDiso ≥130 Gy showed a trend for superior LC (P=0.054). OS was significantly improved in both uni- and multivariate analysis for patients with higher Karnofsky performance scale, lower maximum pulmonary metastasis diameter and lack of post-SBRT systemic therapy due to progression (P=0.014; P=0.049; P=0.006). Only mild acute and late toxicity was reported. Conclusions SBRT for pulmonary metastases from RCC was associated with low treatment-associated toxicity, promising survival, and excellent LC, especially in those patients receiving a BEDiso ≥130 Gy.
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Affiliation(s)
- Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany.,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg, Germany
| | - Marciana Duma
- Department of Radiation Oncology, Technical University Munich, Germany
| | - Oliver Blanck
- Department of Radiation Oncology, UKSH Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | - Guido Hildebrandt
- Department of Radiation Oncology, University of Rostock, Rostock, Germany
| | - Andrea Wittig
- Department of Radiotherapy and Radiation Oncology, Philipps-University Marburg, University Hospital Giessen and Marburg, Germany
| | - Fabian Lohaus
- Department of Radiation Oncology, Medical Faculty and University Hospital C.G. Carus, Technical University Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Dresden, Germany.,OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Germany
| | - Michael Flentje
- Department of Radiation Oncology, University Hospital Wuerzburg, Germany
| | - Frederick Mantel
- Department of Radiation Oncology, University Hospital Wuerzburg, Germany
| | - Robert Krempien
- Department of Radiation Oncology, Helios Klinikum Berlin Buch, Berlin, Germany
| | - Michael J Eble
- Department of Radiation Oncology, University Hospital Aachen, Aachen, Germany
| | | | - Judit Boda-Heggemann
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany.,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg, Germany
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Switzerland
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15
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Schrenk O, Spindeldreier CK, Burigo LN, Hoerner-Rieber J, Pfaffenberger A. Effects of magnetic field orientation and strength on the treatment planning of nonsmall cell lung cancer. Med Phys 2017; 44:6621-6631. [PMID: 29064573 DOI: 10.1002/mp.12631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/14/2017] [Accepted: 10/11/2017] [Indexed: 11/08/2022] Open
Abstract
PURPOSE Magnetic resonance image-guided radiotherapy (MRgRT) has the potential to increase the accuracy of radiation treatment delivery. Several research groups have developed hybrid MRgRT devices differing by radiation source used and magnetic field orientation and strength. In this work, we investigate the impact of different magnetic field orientations and strengths on the treatment planning of nonsmall cell lung cancer patients (NSCLC). METHODS A framework using the in-house developed treatment planning system matRad and the EGSnrc Monte Carlo code system was introduced to perform Monte Carlo-based treatment planning in the presence of a magnetic field. A specialized spectrum-based source model for the beam qualities of 6 MV and cobalt-60 was applied. Optimized plans for stereotactic body radiation therapy (SBRT) and intensity-modulated radiation therapy (IMRT) were generated for four NSCLC patients in the presence of different magnetic field orientations and strengths which are applied in hybrid MRgRT devices currently under development or in clinical use. RESULTS SBRT and IMRT treatment planning could be performed with consistent plan quality for all magnetic field setups. Only minor effects on the treatment planning outcome were found in the case of magnetic fields orientated perpendicular to the beam direction. Compared to the perpendicular magnetic field orientation, the inline orientation showed the capability to reduce the dose to lung while maintaining equal target coverage. Particularly for tumors with a central position in lung, a distinct dose reduction was obtained which led to a maximum reduction of mean lung dose by 18.5% (0.5 Gy), when applying a 1 T inline magnetic field. CONCLUSION All plans generated in this work obtained dose metrics within clinical constraints according to RTOG guidelines. When considering conventional dose metrics, no detrimental effects due to the magnetic fields were observed on the dose to the tumor or to organs at risk. An evaluation of the effects on skin dose was not ascertainable due to the simplified specification of the source model used. By accounting for the magnetic field during treatment planning, a dose reduction in lung could be achieved for inline-oriented magnetic fields. An inline orientation of the magnetic field therefore showed a potential benefit when treating NSCLC with MRgRT.
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Affiliation(s)
- Oliver Schrenk
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), 69120, Heidelberg, Germany
| | - Claudia Katharina Spindeldreier
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), 69120, Heidelberg, Germany
| | - Lucas Norberto Burigo
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), 69120, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), 69120, Heidelberg, Germany
| | - Asja Pfaffenberger
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.,Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), 69120, Heidelberg, Germany
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Bernhardt D, Adeberg S, Bozorgmehr F, Kappes J, Hoerner-Rieber J, Koenig L, Debus J, Thomas M, Unterberg A, Herth F, Heussel C, Steins M, Rieken S. EP-1207: Outcomes and prognostic factors in solitary brain metastasis from small cell lung cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31642-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Hoerner-Rieber J, Abbassi-Senger N, Adebahr S, Andratschke N, Blanck O, Duma M, Eble MJ, Ernst I, Flentje M, Gerum S, Hass P, Henkenberens C, Hildebrandt G, Imhoff D, Kahl H, Krempien R, Klass ND, Lohaus F, Lohr F, Petersen C, Schrade E, Streblow J, Uhlmann L, Wittig A, Sterzing F, Guckenberger M. P2.05-044 Influence of Technological Advances and Institutional Experience on Outcome of Stereotactic Body Radiotherapy for Lung Metastases. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bernhardt D, Adeberg S, Bozorgmehr F, Opfermann N, Hoerner-Rieber J, Repka MC, Kappes J, Thomas M, Bischoff H, Herth F, Heußel CP, Debus J, Steins M, Rieken S. Nine-year Experience: Prophylactic Cranial Irradiation in Extensive Disease Small-cell Lung Cancer. Clin Lung Cancer 2016; 18:e267-e271. [PMID: 28027850 DOI: 10.1016/j.cllc.2016.11.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/15/2016] [Accepted: 11/22/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND In 2007, the European Organization for Research and Treatment of Cancer (EORTC) study (ClinicalTrials.gov identifier, NCT00016211) demonstrated a beneficial effect on overall survival (OS) with the use of prophylactic cranial irradiation (PCI) for extensive disease (ED) small-cell lung cancer (SCLC). Nevertheless, debate is ongoing regarding the role of PCI, because the patients in that trial did not undergo magnetic resonance imaging (MRI) of the brain before treatment. Also, a recent Japanese randomized trial showed a detrimental effect of PCI on OS in patients with negative pretreatment brain MRI findings. MATERIALS AND METHODS We examined the medical records of 136 patients with ED SCLC who had initially responded to chemotherapy and undergone PCI from 2007 to 2015. The outcomes, radiation toxicity, neurologic progression-free survival, and OS after PCI were analyzed. Survival and correlations were calculated using log-rank and univariate Cox proportional hazard ratio analyses. RESULTS The median OS and the median neurologic progression-free survival after PCI was 12 and 19 months, respectively. No significant survival difference was seen for patients who had undergone MRI before PCI compared with patients who had undergone contrast-enhanced computed tomography (P = .20). Univariate analysis for OS did not show a statistically significant effect for known cofactors. CONCLUSION In the present cohort, PCI was associated with improved survival compared with the PCI arm of the EORTC trial, with a nearly doubled median OS period. Also, the median OS was prolonged by 2 months compared with the irradiation arm of the Japanese trial.
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Affiliation(s)
- Denise Bernhardt
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany.
| | - Sebastian Adeberg
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center, Heidelberg, Germany
| | - Farastuk Bozorgmehr
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Heidelberg Translational Lung Research Centre, Heidelberg, Germany; German Centre for Lung Research, Heidelberg, Germany
| | - Nils Opfermann
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
| | - Juliane Hoerner-Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
| | - Michael C Repka
- Department of Radiation Medicine, Georgetown University Hospital, Washington, DC
| | - Jutta Kappes
- Department of Pneumology, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Michael Thomas
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Heidelberg Translational Lung Research Centre, Heidelberg, Germany; German Centre for Lung Research, Heidelberg, Germany
| | - Helge Bischoff
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Heidelberg Translational Lung Research Centre, Heidelberg, Germany; German Centre for Lung Research, Heidelberg, Germany
| | - Felix Herth
- German Centre for Lung Research, Heidelberg, Germany; Department of Pneumology, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Claus Peter Heußel
- German Centre for Lung Research, Heidelberg, Germany; Diagnostic and Interventional Radiology With Nuclear Medicine, Thoraxklinik, University of Heidelberg, Heidelberg, Germany; Department of Diagnostic and Interventional Radiology, University of Heidelberg, Heidelberg, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center, Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center, Heidelberg, Germany
| | - Martin Steins
- Department of Thoracic Oncology, Thoraxklinik, Heidelberg University, Heidelberg Translational Lung Research Centre, Heidelberg, Germany; German Centre for Lung Research, Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology, Heidelberg, Germany
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