A Multicenter, Randomized, Phase 3 Study to Assess the Efficacy and Safety of INtratumorally Administered INT230-6 (SHAO, VINblastine, CIsplatin) Compared With US Standard of Care in Adults With Locally Recurrent, InoperaBLE, or Metastatic Soft Tissue Sarcomas (INVINCIBLE-3)

Inclusion Criteria: 1. Participant is of any sex and must be ≥ 18 years old and provide written informed consent to participate in the study. Type of Participant and Disease Characteristics 2. Histologically proven, unresectable, locally advanced, or metastatic Soft Tissue Sarcoma (STS) only of the following subtypes: liposarcoma (dedifferentiated, myxoid, round cell or pleomorphic), leiomyosarcoma, and undifferentiated pleomorphic sarcoma. Participant must have a pathology report indicating the diagnosis of their STS. 3. Participant must have received at least 1 line of therapy for a STS…