Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain
NRG Oncology
NRG Oncology
Brigham and Women's Hospital
Thomas Jefferson University
NRG Oncology
National Cancer Institute (NCI)
Dana-Farber Cancer Institute
Alliance for Clinical Trials in Oncology
NRG Oncology
Royal Marsden NHS Foundation Trust
Yale University
RenJi Hospital
Memorial Sloan Kettering Cancer Center