Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain
NRG Oncology
NRG Oncology
M.D. Anderson Cancer Center
Royal Marsden NHS Foundation Trust
Massachusetts General Hospital
Memorial Sloan Kettering Cancer Center
NRG Oncology
Alliance for Clinical Trials in Oncology
M.D. Anderson Cancer Center
Wake Forest University Health Sciences
Rutgers, The State University of New Jersey
University of California, San Francisco