The 35 evaluable patients had breast (n=12), NSCLC (n=10), and prostate (n=13) cancers. No dose de-escalations were needed. There were 8 instances of grade 3 adverse events. There were no treatment-related deaths.
SBRT for multiple metastases is now utilized in multiple ongoing Phase II and III NCI-sponsored trials. Follow-up research should be done in long surviving oligometastatic patients.
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"These are important data from the multicenter study, confirming that complicated stereotactic body radiotherapy to multiple sites is safe and feasible. We eagerly await the results of ongoing, larger randomized trials to demonstrate how effective this is when compared to drug therapy alone for metastatic cancer," stated Mitchell Machtay, MD, the Associate Dean for Clinical Cancer Research at the Penn State College of Medicine and the interim Group Chair for NRG Oncology.
About NRG Oncology
NRG Oncology conducts practice-changing, multi-institutional clinical and translational research to improve the lives of patients with cancer. Founded in 2012, NRG Oncology is a Pennsylvania-based nonprofit corporation that integrates the research of the legacy National Surgical Adjuvant Breast and Bowel Project (NSABP), Radiation Therapy Oncology Group (RTOG), and Gynecologic Oncology Group (GOG) programs. The research network seeks to carry out clinical trials with emphases on gender-specific malignancies, including gynecologic, breast, and prostate cancers, and on localized or locally advanced cancers of all types. NRG Oncology's extensive research organization comprises multidisciplinary investigators, including medical oncologists, radiation oncologists, surgeons, physicists, pathologists, and statisticians, and encompasses more than 1,300 research sites located world-wide with predominance in the United States and Canada. NRG Oncology is supported primarily through grants from the National Cancer Institute (NCI) and is one of five research groups in the NCI's National Clinical Trials Network.Back to HCB News