Study of Sacituzumab Govitecan Versus Standard of Care in Participants With Previously Treated Extensive Stage Small Cell Lung Cancer

Chemotherapy-free interval (CTFI) time from the last dose of first-line platinum-containing chemotherapy to the occurrence of progressive disease) < 30 days (independent of the immunotherapy maintenance).

Received any prior treatment with irinotecan, topotecan, SG, SN-38, exatecan derivatives, and similar agents targeting topoisomerase I. Received lurbinectedin after progression on or after platinum-based chemotherapy.

Have carcinomatous meningitis and/or non-carcinomatous meningitis central nervous system (CNS) metastasis apart from the following noted exceptions. Participants with previously treated brain metastases may participate provided they have stable CNS disease (ie, without evidence of progression) for at least 4 weeks (independent from completion of definitive treatment) prior to randomization and all neurologic symptoms have returned to baseline, have no evidence of new or enlarging brain metastases, and are taking ≤ 10 mg/day of prednisone or its equivalent. Participants with untreated, clinically stable brain metastases will be allowed if they are asymptomatic and the investigator determines there is no immediate CNS-specific treatment required, there is no surrounding edema, and the brain metastases are of 5 mm or less in size and 3 or fewer lesions.