Phase II Randomized Controlled Trial of Biologically Guided Stereotactic Body Radiation Therapy in Oligoprogressive Non-Small Cell Lung Cancer, Melanoma, and Renal Cell Carcinoma
City of Hope Medical Center
Summary
This phase II trial tests the safety of positron emission tomography (PET) guided stereotactic body radiation therapy (SBRT) and how well it works to treat non-small cell lung cancer (NSCLC), melanoma, and renal cell carcinoma (RCC) that has up to 5 sites of progression (oligoprogression) compared to standard SBRT. SBRT uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. A PET scan is an imaging test that looks at your tissues and organs using a small amount of a radioactive substance. It also checks for cancer and may help find cancer remaining in areas already treated. Using a PET scan for SBRT planning may help increase the dose of radiation given to the most resistant part of the cancer in patients with oligoprogressive NSCLC, melanoma, and RCC.
Description
PRIMARY OBJECTIVE: I. PET adaptive SBRT is both feasible and safe and allows for a higher total dose of radiation through an inter-fraction simultaneous integrated boost (SIB) based on inter-fraction PET uptake, leading to improved local control outcomes compared to current standard SBRT planning without a SIB. SECONDARY OBJECTIVES: I. Determine the duration of local and distant control followed PET adaptive SBRT treatment compared to standard external beam radiation therapy (EBRT). II. Evaluate the utility of measuring circulating tumor deoxyribonucleic acid (DNA) (ctDNA) before, during a…