CLINICAL TRIAL / NCT06824467

Inclusion Criteria: * Has histologically confirmed epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. * 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 to 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), 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 history of documented severe dry eye syndrome, severe Meibomian gland disease and/or blepharitis, or severe corneal disease that prevents/delays corneal healing. * Has active inflammatory bowel disease requiring immunosuppressive medication or previous history of inflammatory bowel disease (e.g. Crohn's disease, ulcerative colitis, or chronic diarrhea) * Has uncontrolled, significant cardiovascular disease or cerebrovascular disease. * Has a history of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease. * HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease * Has received more than 2 prior lines of systemic therapy for OC. * Has received prior systemic anticancer therapy within 3 weeks or 5 half-lives (whichever is shorter) before allocation (Part 1) or randomization (Part 2) * Has received prior radiotherapy within 2 weeks of allocation (Part 1) or randomization (Part 2), or has radiation related toxicities, requiring corticosteroids * Has an additional malignancy that is progressing or has required active treatment within the past 3 years * Has active central nervous system (CNS) metastases and/or carcinomatous meningitis * Has an active infection requiring systemic therapy