A Study of Adavosertib (MK-1775) in Combination With Topotecan/Cisplatin in Participants With Cervical Cancer (MK-1775-008)

This study will be conducted in two parts. Part 1 will determine whether administration of adavosertib in combination with topotecan and cisplatin is generally well-tolerated and causes clinical objective responses in patients with cervical cancer. Part 1 will also define the recommended Phase 2 dose and maximum tolerated dose (MTD) of the combination of adavosertib with topotecan and cisplatin. Part 2 of the study will evaluate whether treatment with adavosertib in combination with topotecan and cisplatin causes an improvement in progression-free survival (PFS) compared to treatment with topotecan and cisplatin alone and will further evaluate the tolerability of the combination treatment. The primary hypothesis is the combination of adavosertib, topotecan and cisplatin causes objective radiological responses (assessed per Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1 criteria) in ≥30% of participants. Due to the early termination of the study by the sponsor, no participants were enrolled in Part 2 of the study.