Overview Palbociclib and Pembrolizumab in Undifferentiated Pleomorphic Sarcoma (UPS) Status: Recruiting Trial end date: 2028-07-01 Target enrollment: Participant gender: Summary This is a single-arm open-label window of opportunity clinical study assessing the impact of pre-treatment with palbociclib. Phase: Phase 1 Details Lead Sponsor: Mohammed MilhemTreatments: PalbociclibPembrolizumab