A Study to Evaluate the Efficacy and Safety of Sacituzumab Tirumotecan (MK-2870) Maintenance Treatment Versus Standard of Care in Participants With Platinum-sensitive Recurrent Ovarian Cancer (MK-2870-022/TroFuse-022/ENGOT-ov84/GOG-3103)

Inclusion Criteria: * Has histologically confirmed Federation of Gynecology and Obstetrics (FIGO) Stage III or IV epithelial ovarian, primary peritoneal, or fallopian tube carcinoma of certain histologies * Has received 4 or more cycles of platinum-based doublet chemotherapy in first-line and a total of 6 cycles of carboplatin-based doublet chemotherapy in second-line setting for ovarian cancer (OC) * Has platinum-sensitive epithelial OC * Has provided tissue of a tumor lesion that was not previously irradiated * Human immunodeficiency virus (HIV)-infected participants must have well controlled HIV on antiretroviral therapy * Participants who are hepatitis B surface antigen positive are eligible if they have received hepatitis B virus (HBV) antiviral therapy for at least 4 weeks, and have undetectable HBV viral load prior to allocation (Part 1) or randomization (Part 2) * Participants with a history of hepatitis C virus (HCV) infection are eligible if HCV viral load is undetectable at screening * Has an ECOG performance status of 0 or 1 assessed within 7 days before allocation (Part 1) or randomization (Part 2) Exclusion Criteria: * Has nonepithelial cancers (germ cell tumors and sex cord-stromal tumors), low-grade serous tumors, low-grade endometrioid tumors, borderline tumors (low malignant potential), mucinous, seromucinous that is predominantly mucinous, malignant Brenner's tumor and undifferentiated carcinoma * Has platinum-resistant OC or platinum-refractory OC * Has…