PMID- 36413679 OWN - NLM STAT- MEDLINE DCOM- 20221124 LR - 20231202 IS - 1537-453X (Electronic) IS - 0277-3732 (Print) IS - 0277-3732 (Linking) VI - 45 IP - 12 DP - 2022 Dec 1 TI - Evaluation of 5 Fraction Stereotactic Body Radiation Therapy (SBRT) for Osseous Renal Cell Carcinoma Metastases. PG - 501-505 LID - 10.1097/COC.0000000000000952 [doi] AB - OBJECTIVES: The best fractionation for stereotactic body radiotherapy (SBRT) in renal cell carcinoma (RCC) metastases has not been well defined. In addition, the literature on outcomes using 5-fraction SBRT in the setting of osseous metastases has not been well reported. MATERIALS AND METHODS: Thirty-nine patients with 69 RCC osseous metastases were treated using 5-fraction SBRT at a single institution using 2 dose-fractionation schemes. Overall survival and local-control (LC) outcomes of the 2 fractionation schemes were studied using Kaplan-Meier curves. RESULTS: Of the 69 lesions included in the study, 20 were treated with 30 grays (Gy) in 5 fractions and 49 were treated with 40 Gy in 5 fractions. The median age of patients at diagnosis was 58.4 years. The 1-year LC rate for all treated lesions was 85.5% (59/69) with an LC of 90% (18/20) for lesions receiving 30 Gy and 83.7% (41/49) in lesions receiving 40 Gy. There was no statistically significant difference in 1-year LC rate between the 2 fractionation schemes (P-value, 0.553). CONCLUSIONS: Patients with osseous RCC metastases undergoing 5 fractions of SBRT had favorable LC outcomes. There was no difference in survival or LC between the 40 Gy and 30 Gy treatment arms. CI - Copyright (c) 2022 Wolters Kluwer Health, Inc. All rights reserved. FAU - Dove, Austin P H AU - Dove APH AUID- ORCID: 0000-0002-2100-9536 AD - Department of Radiation Oncology and Department of Cancer Biology. FAU - Wells, Alex AU - Wells A AD - School of Medicine, Vanderbilt University Medical Center, Nashville, TN. FAU - Gong, Wu AU - Gong W AD - Department of Biostatistics. FAU - Liu, Dandan AU - Liu D AD - Department of Biostatistics. FAU - Kirschner, Austin N AU - Kirschner AN AD - Department of Radiation Oncology and Department of Cancer Biology. LA - eng GR - UL1 TR002243/TR/NCATS NIH HHS/United States PT - Journal Article DEP - 20221114 PL - United States TA - Am J Clin Oncol JT - American journal of clinical oncology JID - 8207754 SB - IM MH - Humans MH - Middle Aged MH - *Carcinoma, Renal Cell/secondary MH - *Radiosurgery/adverse effects MH - Dose Fractionation, Radiation MH - *Bone Neoplasms/radiotherapy MH - *Kidney Neoplasms/pathology PMC - PMC9699181 MID - NIHMS1841022 COIS- The authors declare no conflicts of interest. EDAT- 2022/11/23 06:00 MHDA- 2022/11/25 06:00 PMCR- 2023/12/01 CRDT- 2022/11/22 15:22 PHST- 2022/11/22 15:22 [entrez] PHST- 2022/11/23 06:00 [pubmed] PHST- 2022/11/25 06:00 [medline] PHST- 2023/12/01 00:00 [pmc-release] AID - 00000421-202212000-00003 [pii] AID - 10.1097/COC.0000000000000952 [doi] PST - ppublish SO - Am J Clin Oncol. 2022 Dec 1;45(12):501-505. doi: 10.1097/COC.0000000000000952. Epub 2022 Nov 14.