Overview SARC038: Phase 2 Study of Regorafenib and Nivolumab in Osteosarcoma Status: Recruiting Trial end date: 2026-06-01 Target enrollment: Participant gender: Summary A phase 2 study of regorafenib in combination with nivolumab in patients with refractory or recurrent osteosarcoma. Phase: Phase 2 Details Lead Sponsor: Sarcoma Alliance for Research through CollaborationTreatments: Nivolumab