RecruitingPhase 1Drug trialA Phase I Study of Pazopanib in Combination With Trabectedin, Ipilimumab and Nivolumab (TraPIN) in Pediatric and Young Adult Patients With Recurrent Soft Tissue SarcomasThe goal of this study is to build on the experience of the SAINT trial by evaluating the safety and efficacy of the addition of pazopanib to their published chemotherapy regimen.