CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 1,367 enrolled
Drug / intervention
Pembrolizumab +7 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03740165
NCT03740165Phase 3Completed

A Randomized Phase 3, Double-Blind Study of Chemotherapy With or Without Pembrolizumab Followed by Maintenance With Olaparib or Placebo for the First-Line Treatment of BRCA Non-mutated Advanced Epithelial Ovarian Cancer (EOC) (KEYLYNK-001 / ENGOT-ov43 / GOG-3036)

Merck Sharp & Dohme LLC·interventional·Posted Nov 14, 2018·Updated May 4, 2026

In Brief

A Phase 3 clinical trial evaluating Pembrolizumab, Placebo for pembrolizumab, and 6 other interventions for Ovarian Cancer and 2 related conditions. Completed, enrolled 1,367 participants across 227 sites in 22 countries.

Detailed Summary

The purpose of this study is to assess the efficacy and safety of treatment with carboplatin/paclitaxel\* PLUS pembrolizumab (MK-3475) and maintenance olaparib (MK-7339) in women with epithelial ovarian cancer (EOC), fallopian tube cancer, or primary peritoneal cancer. The primary study hypotheses are that the combination of pembrolizumab plus carboplatin/paclitaxel\* followed by continued pembrolizumab and maintenance olaparib is superior to carboplatin/paclitaxel alone with respect to Progression Free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in participants with programmed death-ligand 1 (PD-L1) positive tumors (Combined Positive Score \[CPS\]≥10) and in all participants, and that the combination of pembrolizumab plus carboplatin/paclitaxel followed by continued pembrolizumab is superior to carboplatin/paclitaxel alone with respect to PFS per RECIST 1.1 in participants with PD-L1 positive tumors (CPS≥10) and in all participants.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Belgium, Brazil, Canada, Chile, Colombia, Czechia, France, Germany, Hungary, Israel, Italy, Japan, Poland, Russia, South Africa, South Korea, Spain, Taiwan, Turkey (Türkiye), Ukraine, United States

Timeline

Phase 3CompletedFinished
20192020202120222023202420252026
First PostedNov 14, 2018
Enrollment StartDec 18, 2018
Primary CompletionAug 26, 2024
Study CompletionApr 15, 2026
TodayJul 2, 2026
Enrollment to primary: 5.7 yearsPosted 7.6 years ago

Interventions

Pembrolizumabbiological

IV infusion

Placebo for pembrolizumabdrug

IV infusion

Carboplatindrug

IV infusion

Paclitaxeldrug

IV infusion

Olaparibdrug

Oral tablet

Placebo for olaparibdrug

Oral tablet

Bevacizumabbiological

IV infusion

Docetaxeldrug

IV infusion