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Stereotactic Body Radiotherapy for Kidney Cancer: Ready for Prime Time? Clin Oncol (R Coll Radiol) 2023; 35:163-176. [PMID: 36443137 DOI: 10.1016/j.clon.2022.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022]
Abstract
The standard treatment for renal cell carcinoma (RCC) is surgery. However, a number of patients will not be candidates for surgical treatment or will reject this therapeutic approach. Therefore, alternative approaches are required. Historically, radiotherapy has been considered an ineffective treatment for RCC due to the radioresistance of renal tumour cells to conventional fractionation and the increased rate of toxicity. Stereotactic body radiotherapy (SBRT) is a radiotherapy technique that provides a non-invasive ablative treatment with remarkable rates of local control in both primary tumours and metastases in several locations, with a low associated morbidity due to the highly conformal dose and the use of image-guided techniques. Current evidence shows that a higher dose per fraction, achieving a higher biological effective dose, can overcome the radioresistance of RCC cells. Therefore, SBRT, as well as the combination of SBRT and new emerging immune therapies, has a potential role in the local treatment of primary RCC and oligometastatic RCC patients.
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The role of stereotactic body radiation therapy and its integration with systemic therapies in metastatic kidney cancer: a multicenter study on behalf of the AIRO (Italian Association of Radiotherapy and Clinical Oncology) genitourinary study group. Clin Exp Metastasis 2021; 38:527-537. [PMID: 34748125 DOI: 10.1007/s10585-021-10131-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/03/2021] [Indexed: 10/19/2022]
Abstract
Although systemic therapy represents the standard of care for polymetastatic kidney cancer, stereotactic body radiation therapy (SBRT) may play a relevant role in the oligometastatic setting. We conducted a multicenter study including oligometastatic kidney cancer treated with SBRT. We retrospectively analyzed 207 patients who underwent 245 SBRT treatments on 385 lesions, including 165 (42.9%) oligorecurrent (OR) and 220 (57.1%) oligoprogressive (OP) lesions. Most common sites were lung (30.9%) for OR group, and bone (32.7%) for OP group. Among 78 (31.8%) patients receiving concomitant systemic therapy, sunitinib (61.5%) and pazopanib (15.4%) were the most common for OR patients, while sunitinib (49.2%) and nivolumab (20.0%) for OP patients. End points were local control (LC), progression free survival (PFS), overall survival (OS), time to next systemic therapy (TTNS) and toxicity. Median follow-up was 18.6 months. 1, 2 and 3-year LC rates were 89.4%, 80.1% and 76.6% in OR patients, and 82.7%, 76.9% and 64.3% in those with OP, respectively. LC for OP group was influenced by clear cell histology (p = 0.000), total number of lesions (p = 0.004), systemic therapy during SBRT (p = 0.012), and SBRT dose (p = 0.012). Median PFS was 37.9 months. 1, 2- and 3-year OS was 92.7%, 86.4% and 81.8%, respectively. Median TTNS was 15.8 months for OR patients, and 13.9 months for OP patients. No grade 3 or higher toxicities were reported for both groups. SBRT may be considered an effective safe option in the multidisciplinary management of both OR and OP metastases from kidney cancer.
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Wang S, Jin W, Jiang C, Zhang Y, Deng K. Efficacy and safety of tyrosine kinase inhibitors alone or in combination with radiation therapy for metastatic renal cell carcinoma: A protocol for evidence-based systematic review and Bayesian network meta-analysis. Medicine (Baltimore) 2021; 100:e27004. [PMID: 34414990 PMCID: PMC8376327 DOI: 10.1097/md.0000000000027004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Given the lack of evidence for survival benefit in patients with metastatic renal cell carcinoma from the addition of radiation therapy to tyrosine kinase inhibitor therapy, this Bayesian network meta-analysis aimed to evaluate survival outcomes in patients receiving radiation therapy plus tyrosine kinase inhibitor therapy. METHODS The preferred reporting items for systematic reviews and meta-analyses reporting guidelines were followed to conduct this study. The electronic databases of PubMed, Cochrane Library, EMBASE, and Web of Science were searched from the inception to August 2021. All phase III clinical trials that reported the outcomes of tyrosine kinase inhibitor with radiation therapy compared with those of tyrosine kinase inhibitor or radiation therapy alone for patients with metastatic renal cell carcinoma were considered eligible for inclusion in this meta-analysis. Overall survival as the primary outcome of interest, and adverse events as secondary outcome of interest were recorded for meta-analysis. RESULTS A Bayesian network meta-analysis is an appropriate statistical method to compare all treatment options by statistically simulating the estimated results of a comprehensive trial, and to compare treatments by common and associated comparators. In addition, Bayesian network meta-analysis can produce ranking probabilities of treatments, which may contribute to clinicians' clinical decision-making.
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Mazzola R, Jereczek-Fossa BA, Franceschini D, Tubin S, Filippi AR, Tolia M, Lancia A, Minniti G, Corradini S, Arcangeli S, Scorsetti M, Alongi F. Oligometastasis and local ablation in the era of systemic targeted and immunotherapy. Radiat Oncol 2020; 15:92. [PMID: 32366258 PMCID: PMC7197157 DOI: 10.1186/s13014-020-01544-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Background During these last years, new agents have dramatically improved the survival of the metastatic patients. Oligometastases represent a continuous field of interest in which the integration of metastases-directed therapy and drugs could further improve the oncologic outcomes. Herein a narrative review is performed regarding the main rationale in combining immunotherapy and target therapies with SBRT looking at the available clinical data in case of oligometastatic NSCLC, Melanoma and Kidney cancer. Material and method Narrative Review regarding retrospective and prospective studies published between January 2009 to November 2019 with at least 20 patients analyzed. Results Concerning the combination between SBRT and Immunotherapy, the correct sequence of remains uncertain, and seems to be drug-dependent. The optimal patients’ selection is crucial to expect substantial benefits to SBRT/Immunotherapy combination and, among several factors. A potential field of interest is represented by the so-called oligoprogressed disease, in which SBRT could improve the long-term efficacy of the existing target therapy. Conclusions A low tumor burden seems to be the most relevant, thus making the oligometastatic disease represent the ideal setting for the use of combination therapies with immunological drugs.
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Affiliation(s)
- Rosario Mazzola
- IRCCS, Advanced Radiation Oncology Department, Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Barbara Alicja Jereczek-Fossa
- Department of Radiation Oncology IEO, European Institute of Oncology IRCCS, Milan, Italy.,Department of Oncology and Hemato-oncology University of Milan, Milan, Italy
| | - Davide Franceschini
- Radiotherapy and Radiosurgery Department, Humanitas Cancer Center, Rozzano, Milan, Italy
| | - Slavisa Tubin
- KABEG Klinikum Klagenfurt, Institute of Radiation Oncology, Klagenfurt am Wörthersee, Austria
| | | | - Maria Tolia
- Faculty of Medicine, School of Health Sciences, University of Thessaly, University Hospital of Larissa, Biopolis, Larisa, Greece
| | - Andrea Lancia
- Radiation Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giuseppe Minniti
- Radiation Oncology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Stefanie Corradini
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Stefano Arcangeli
- Department of Radiation Oncology, Policlinico S. Gerardo and University of Milan "Bicocca", Milan, Italy
| | - Marta Scorsetti
- Radiotherapy and Radiosurgery Department, Humanitas Cancer Center, Rozzano, Milan, Italy
| | - Filippo Alongi
- IRCCS, Advanced Radiation Oncology Department, Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy. .,University of Brescia, Brescia, Italy.
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Dengina N, Mitin T, Gamayunov S, Safina S, Kreinina Y, Tsimafeyeu I. Stereotactic body radiation therapy in combination with systemic therapy for metastatic renal cell carcinoma: a prospective multicentre study. ESMO Open 2019; 4:e000535. [PMID: 31673426 PMCID: PMC6802957 DOI: 10.1136/esmoopen-2019-000535] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/29/2019] [Accepted: 08/31/2019] [Indexed: 01/05/2023] Open
Abstract
Background Tyrosine kinase inhibitors (TKIs) and checkpoint inhibitors have been established as effective treatment for metastatic renal cell carcinoma (mRCC), but only a minority of patients achieve complete response. Additional strategies are necessary to improve these agents’ efficacy. Methods Patients with stable disease for at least 4 months on TKI or checkpoint inhibitors were included. Stereotactic body radiotherapy (SBRT) was delivered to an organ with comparable lesions, where one lesion was in the treatment target and the other one was intentionally left untreated (control lesion). Response in both lesions was scored using the Response Evaluation Criteria in Solid Tumors V.1.1 criteria 2 months after completion of SBRT. The primary endpoint was the rate of SBRT adverse events, and the secondary endpoints included the rate of reduction in target lesion size. Results 17 patients were enrolled (14 men and 3 women, median age: 54.5 years old). SBRT was delivered to the lungs (n=5), bones (n=4), lymph nodes (n=4), liver (n=1), primary renal cell carcinoma (RCC) (n=1) and locally recurrent RCC (n=2). The equivalent dose in 2 Gy with an alpha to beta ratio of 2.6 was 114 Gy. With a median follow-up of 8 months, the cumulative rate of SBRT-related toxicity (grade 1) was 12% (n=2), consisting of oesophagitis and skin erythema. No grade 2 or higher toxicity was detected. Radiographic response in the target lesion was seen in 13 patients (76%), with complete response in 5 (29%) patients and partial response in 8 (47%), including abscopal effect in 1 patient. Control lesions remained stable in 16 patients. The difference between response in the target and control lesions as judged by the mean sizes of these lesions before and at 2 months after SBRT was statistically significant (p<0.01). Fraction size of 10 Gy or greater was associated with complete response (p<0.01). Conclusion Extracranial SBRT in patients with mRCC treated with TKI or checkpoint inhibitors is well tolerated and could be effective. Trial registration number NCT02864615
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Affiliation(s)
- Natalia Dengina
- Department of Radiotherapy, Ulyanovsk Regional Clinical Cancer Center, Ulyanovsk, Russian Federation
| | - Timur Mitin
- Department of Radiation Medicine, Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Sergey Gamayunov
- Department of Thoracic and Abdominal Surgery, Republic Clinical Cancer Center, Cheboksary, Russian Federation
| | - Sufia Safina
- Department of Medical Oncology, Republic Clinical Cancer Center, Kazan, Russian Federation
| | - Yuliya Kreinina
- Department of Brachytherapy, Russian Scientific Center of Roentgen Radiology, Moscow, Russian Federation
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Corradini S, Alongi F, Andratschke N, Belka C, Boldrini L, Cellini F, Debus J, Guckenberger M, Hörner-Rieber J, Lagerwaard FJ, Mazzola R, Palacios MA, Philippens MEP, Raaijmakers CPJ, Terhaard CHJ, Valentini V, Niyazi M. MR-guidance in clinical reality: current treatment challenges and future perspectives. Radiat Oncol 2019; 14:92. [PMID: 31167658 PMCID: PMC6551911 DOI: 10.1186/s13014-019-1308-y] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/24/2019] [Indexed: 11/23/2022] Open
Abstract
Magnetic Resonance-guided radiotherapy (MRgRT) marks the beginning of a new era. MR is a versatile and suitable imaging modality for radiotherapy, as it enables direct visualization of the tumor and the surrounding organs at risk. Moreover, MRgRT provides real-time imaging to characterize and eventually track anatomical motion. Nevertheless, the successful translation of new technologies into clinical practice remains challenging. To date, the initial availability of next-generation hybrid MR-linac (MRL) systems is still limited and therefore, the focus of the present preview was on the initial applicability in current clinical practice and on future perspectives of this new technology for different treatment sites.MRgRT can be considered a groundbreaking new technology that is capable of creating new perspectives towards an individualized, patient-oriented planning and treatment approach, especially due to the ability to use daily online adaptation strategies. Furthermore, MRL systems overcome the limitations of conventional image-guided radiotherapy, especially in soft tissue, where target and organs at risk need accurate definition. Nevertheless, some concerns remain regarding the additional time needed to re-optimize dose distributions online, the reliability of the gating and tracking procedures and the interpretation of functional MR imaging markers and their potential changes during the course of treatment. Due to its continuous technological improvement and rapid clinical large-scale application in several anatomical settings, further studies may confirm the potential disruptive role of MRgRT in the evolving oncological environment.
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Affiliation(s)
- S. Corradini
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - F. Alongi
- Department of Radiation Oncology, IRCSS Sacro Cuore don Calabria Hospital, Negrar-Verona, Italy
- University of Brescia, Brescia, Italy
| | - N. Andratschke
- Department of Radiation Oncology, University Hospital Zürich, University of Zurich, Zürich, Switzerland
| | - C. Belka
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - L. Boldrini
- Istituto di Radiologia, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Radioterapia Oncologica, Rome, Italy
| | - F. Cellini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Radioterapia Oncologica, Rome, Italy
| | - J. Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - M. Guckenberger
- Department of Radiation Oncology, University Hospital Zürich, University of Zurich, Zürich, Switzerland
| | - J. Hörner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - F. J. Lagerwaard
- Department of Radiation Oncology, VU medical center, Amsterdam, The Netherlands
| | - R. Mazzola
- Department of Radiation Oncology, IRCSS Sacro Cuore don Calabria Hospital, Negrar-Verona, Italy
- University of Brescia, Brescia, Italy
| | - M. A. Palacios
- Department of Radiation Oncology, VU medical center, Amsterdam, The Netherlands
| | - M. E. P. Philippens
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C. P. J. Raaijmakers
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C. H. J. Terhaard
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - V. Valentini
- Istituto di Radiologia, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Radioterapia Oncologica, Rome, Italy
| | - M. Niyazi
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
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Radiotherapy for oligometastatic cancer: a survey among radiation oncologists of Lombardy (AIRO-Lombardy), Italy. Radiol Med 2018; 124:315-322. [PMID: 30554376 DOI: 10.1007/s11547-018-0972-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/05/2018] [Indexed: 02/06/2023]
Abstract
AIMS To evaluate the use of radiotherapy (RT) for oligometastatic cancer (OMC) among radiation oncologists in Lombardy, Italy. METHODS AND STUDY DESIGN A survey with 12 items regarding data of 2016 was sent to all 34 Lombardy RT centers. The survey included six general items and six specific items regarding patient/disease/treatment characteristics. RESULTS Thirteen centers answered the survey (38%). All centers responded to general items and 12 centers submitted patient/disease/treatment data. General items The majority of centers (8/13) consider OMC if metastases number is less than 5. The most commonly prescribed dose/fraction is 5-10 Gy (8/13) using schedules of 3-5 fractions (11/13). Patient data items A total of 15.681 patients were treated in 2016 with external beam RT in 12 responding centers, and 1.087 patients were treated for OMC (7%). Primary tumor included lung, prostate, breast, colorectal and other malignancies in 33%, 21%, 12%, 9% and 25% of all OMC patients, respectively. Brain, lymph node, lung, bone, liver and others were the most common treated sites (24%, 24%, 22%, 17%, 8% and 5%, respectively). One and more than one metastasis were treated in 75 and 25% of patients, respectively. The vast majority of patients (95%) were treated with image-guided intensity-modulated RT or stereotactic RT. CONCLUSIONS Seven percent of all RT patients in Lombardy are treated for OMC. Extreme hypofractionation and high-precision RT are commonly employed. The initiative of multicenter and multidisciplinary collaboration has been undertaken in order to prepare the platform for prospective and/or observational studies in OMC.
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Effect of Switching Systemic Treatment After Stereotactic Radiosurgery for Oligoprogressive, Metastatic Renal Cell Carcinoma. Clin Genitourin Cancer 2018; 16:413-419.e1. [DOI: 10.1016/j.clgc.2018.07.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 01/21/2023]
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Fersino S, Arcangeli S, Jereczek-Fossa BA, D’Angelillo R, Bertoni F, D’Agostino GR, Triggiani L, Corvò R, Magrini SM, Alongi F. GUROPA survey: genito-urinary radiation oncology prescription attitudes. Radiol Med 2018; 123:879-884. [DOI: 10.1007/s11547-018-0918-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/03/2018] [Indexed: 01/02/2023]
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Correa RJM, Ahmad B, Warner A, Johnson C, MacKenzie MJ, Pautler SE, Bauman GS, Rodrigues GB, Louie AV. A prospective phase I dose-escalation trial of stereotactic ablative radiotherapy (SABR) as an alternative to cytoreductive nephrectomy for inoperable patients with metastatic renal cell carcinoma. Radiat Oncol 2018; 13:47. [PMID: 29558966 PMCID: PMC5859400 DOI: 10.1186/s13014-018-0992-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 03/06/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Cytoreductive nephrectomy is thought to improve survival in metastatic renal cell carcinoma (mRCC). As many patients are ineligible for major surgery, we hypothesized that SABR could be a safe alternative. METHODS In this dose-escalation trial, inoperable mRCC patients underwent SABR targeting the entire affected kidney. Toxicity (CTCAE v3.0), quality of life (QoL), renal function, and tumour response (RECIST v1.0) were assessed. RESULTS Twelve patients of mostly intermediate (67%) or poor (25%) International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) prognostic class, median KPS of 70%, and median tumour size of 8.7 cm (range: 4.8-13.8) were enrolled in successive dose cohorts of 25 (n = 3), 30 (n = 6), and 35 Gy (n = 3) in 5 fractions. SABR was well tolerated with 3 grade 3 events: fatigue (2) and bone pain (1). QoL decreased for physical well-being (p = 0.016), but remained unchanged in other domains. SABR achieved a median tumour size reduction of - 17.3% (range: + 5.3 to - 54.4) at 5.3 months. All patients progressed systemically and median OS was 6.7 months. Crude median follow-up was 5.8 months. CONCLUSIONS In non-operable mRCC patients, renal-ablative SABR to 35 Gy in 5 fractions yielded acceptable toxicity, renal function preservation, and stable QoL. SABR merits further prospective investigation as an alternative to cytoreductive nephrectomy. TRIAL REGISTRATION ClinicalTrials.gov NCT02264548. Registered July 22 2014 - Retrospectively registered: https://clinicaltrials.gov/ct2/show/NCT02264548.
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Affiliation(s)
- Rohann J M Correa
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada
| | - Belal Ahmad
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada
| | - Andrew Warner
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada
| | - Craig Johnson
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada
| | - Mary J MacKenzie
- Department of Medical Oncology, London Regional Cancer Program, London, Canada
| | - Stephen E Pautler
- Division of Urology, Western University, London, Canada.,Division of Surgical Oncology, Western University, London, Canada
| | - Glenn S Bauman
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada
| | - George B Rodrigues
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada.,Department of Epidemiology and Biostatistics, Western University, London, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, London Regional Cancer Program, London, Canada. .,Department of Epidemiology and Biostatistics, Western University, London, Canada.
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Haque W, Verma V, Lewis GD, Lo SS, Butler EB, Teh BS. Utilization of radiotherapy and stereotactic body radiation therapy for renal cell cancer in the USA. Future Oncol 2018. [PMID: 29527938 DOI: 10.2217/fon-2017-0536] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
AIM This study evaluated national practice patterns of cT1N0M0 renal cell cancer, with a focus on stereotactic body radiation therapy (SBRT) utilization. METHODS The National Cancer Database was queried (2004-2013) for patients with newly-diagnosed cT1a/bN0M0 renal cell cancer that received definitive treatment. Temporal trends in utilization were tabulated. RESULTS Altogether, 138,495 patients met inclusion criteria; 13,725 (9.9%) patients received ablative therapy, 57,924 (41.8%) partial nephrectomy, 67,168 (48.5%) radical nephrectomy and 308 (0.2%) external beam radiation therapy (EBRT). The proportion of EBRT that was SBRT increased substantially from 25% in 2004 to 95.4% in 2013, with a sharp inflection point from 2005 to 2006. CONCLUSION SBRT utilization has sharply risen over time; in most recent years, the vast majority of EBRT is delivered in the form of SBRT.
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Affiliation(s)
- Waqar Haque
- Department of Radiation Oncology, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Vivek Verma
- Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, PA 15212, USA
| | - Gary D Lewis
- Department of Radiation Oncology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Edward Brian Butler
- Department of Radiation Oncology, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Bin S Teh
- Department of Radiation Oncology, Houston Methodist Hospital, Houston, TX 77030, USA
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