A Phase II Study of Lower Dose Radiation Therapy in People with Metastatic Tumors Containing a Genetic Change

Full Title

Purpose

Radiation delivered to metastatic tumors is known to cause damage to the DNA (genetic information) in the cancer cells, which causes them to die. An ATM mutation reduces cancer cells’ ability to fix damage to their DNA, making it more likely that the radiation will kill ATM-mutated cancer cells. Lower doses of radiation therapy may cause fewer side effects than standard doses. In this study, researchers will observe the side effects of reduced-dose radiation therapy in patients with metastatic tumors that contain an ATM mutation and the rate at which tumors grow back (recur) after this treatment. It is hoped that lowering the radiation dose will be effective while reducing the side effects of treatment.