A Phase 1 Clinical Study to Evaluate the Safety and Efficacy of WSK-IM02 in Patients With Platinum-resistant Recurrent Ovarian Cancer.

Dose-escalation part of this study will assess the safety, tolerability, PK, and preliminary efficacy of WSK-IM02 as monotherapy in eligible patients with platinum-resistant recurrent ovarian cancer. Cohort expansion part will further evaluate the Recommended Phase 2 Dose (RP2D) of WSK-IM02. RP2D decisions will be based on the totality of data, including Dose-Limiting Toxicities (DLTs), tolerability, PK, pharmacodynamics (PD), and efficacy, as available. Dose-escalation part of this study will use a standard 3+3 dose-escalation design with the dose escalated in successive cohorts of 3 to 9 patients each within each cohort in an open-label fashion. Patients who meet eligibility criteria will be enrolled in the dose-escalation part, receiving WSK-IM02 as monotherapy via intraperitoneal injection twice weekly on Days 1, 5, 8, and 12 of repeated 14-day cycles in escalating doses. Patients will only receive WSK-IM02 for one cycle during the 28-day DLTs observation period. If a patient shows no disease progression or intolerable toxicity after completing DLTs observation, the investigator will discuss with the patient whether to continue subsequent treatment. If treatment is continued, the patient enters the treatment period. Enrollment for the next Dose Level can only begin once all patients at a given Dose Level have completed DLTs observation and have not met the termination criteria for dose escalation, and the safety has been evaluated and declared to be safe by the Safety Review Committee (SRC). After determination of Maximum Tolerated Dose (MTD) or Maximum Administrated Dose (MAD) and the expected effective Dose Level, the next part with expansion cohorts will commence to further evaluate the RP2D.