This phase II trial compares the timing of stereotactic radiosurgery when given immediately before or after an immunotherapy in patients with non-small cell lung cancer that has spread to the brain (brain metastases). Stereotactic radiosurgery is a form of radiation therapy that focuses high-power energy on a small area of the body. Immunotherapies are drugs that use parts of a person's immune system to fight diseases such as cancer. This trial may help researchers determine the best time to give stereotactic radiosurgery to patients with lung cancer and brain metastases.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT04650490.
PRIMARY OBJECTIVE:
I. Assess timing of stereotactic radiosurgery (SRS) and immune checkpoint inhibitor (IO) on intracranial progression-free survival (iPFS).
SECONDARY OBJECTIVE:
I. Assess quality of life and neurocognitive outcomes in each arm.
EXPLORATORY OBJECTIVES:
I. Assess overall survival and disease control in each arm.
II. Assess incidence and timing of radiation necrosis in each arm.
III. Describe the utilization of steroids in each arm.
IV. Describe correlative endpoints from collected blood, skin swab and stool.
V. Compare outcomes between 2 arms.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients undergo 1-5 factions of stereotactic radiosurgery. Patients begin immunotherapy within 14 days after SRS and then continue as scheduled by treating medical oncologist.
ARM II: Patents receive immunotherapy once every 3 weeks, per standard of care. Patients whose disease progresses, undergo stereotactic radiosurgery.
After completion of study treatment, patients are followed up at 12 months.
Lead OrganizationDuke University Medical Center
Principal InvestigatorScott Richard Floyd