BrUOG 397: NEO Rad (LOW): Neoadjuvant Low Dose Stereotactic Body Radiotherapy, Ipilimumab and Nivolumab

This single-arm phase 2 study will enroll patients with resectable and operable stage IB - III non-small cell lung cancer and treat them with pre-operative ipilimumab + nivolumab plus low-dose stereotactic body radiation therapy (SBRT) delivered concurrently. Only patients who proceed to surgery will be evaluable for the primary endpoint. The primary efficacy outcome measurement will be pathologic response (including Major Pathologic Response (MPR), and Complete Pathologic Response (CPR)). Secondary outcome measures include safety, and exploratory biomarkers of immune response in pre- and post-operative blood and tissue. A two-stage design will stop the study if fewer than 3 of the first 9 evaluable patients do not achieve MPR. An early stopping rule for safety will stop the study if more than 12 patients are enrolled to find the first 9 evaluable patients.

NCT Number	NCT04933903
Lead Sponsor	Brown University Collaborators: Bristol-Myers Squibb
Conditions	Non Small Cell Lung Cancer
Enrollment	25 participants
Start Date	2021-10-05
Primary Completion	2026-06 (estimated)
Study Completion	2026-09 (estimated)
Updated on ClinicalTrials.gov	2026-03-31