RecruitingPhase 2Drug trialPhase II Decentralized Pragmatic Trial of Adjuvant Doxorubicin - Trabectedin Chemotherapy in uLMSTo find out if receiving standard chemotherapy (doxorubicin and trabectedin) can extend the cancer-free survival of patients with Stage 1b/2 uterine leiomyosarcoma who had surgery that fully removed the tumor.