Overview MK-3475 in Melanoma and NSCLC Patients With Brain Metastases Status: Completed Trial end date: 2020-02-27 Target enrollment: Participant gender: Summary The purpose of this trial is to study the activity of MK-3475 in untreated brain metastases from melanoma or non-small cell lung cancer. Phase: Phase 2 Details Lead Sponsor: Yale UniversityTreatments: Pembrolizumab