Study of Chemotherapy With Pembrolizumab (MK-3475) Followed by Maintenance With Olaparib (MK-7339) for the First-Line Treatment of Women With BRCA Non-mutated Advanced Epithelial Ovarian Cancer (EOC) (MK-7339-001/KEYLYNK-001/ENGOT-ov43/GOG-3036)

NCT03740165 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 1367

Last updated 2026-05-04

Study results available
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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.

Conditions

Interventions

BIOLOGICAL

Pembrolizumab

IV infusion

DRUG

Placebo for pembrolizumab

IV infusion

DRUG

Carboplatin

IV infusion

DRUG

Paclitaxel

IV infusion

DRUG

Olaparib

Oral tablet

DRUG

Placebo for olaparib

Oral tablet

BIOLOGICAL

Bevacizumab

IV infusion

DRUG

Docetaxel

IV infusion

Sponsors & Collaborators

  • European Network of Gynaecological Oncological Trial Groups (ENGOT)

    collaborator OTHER
  • Gynecologic Oncology Group

    collaborator NETWORK
  • Merck Sharp & Dohme LLC

    lead INDUSTRY

Principal Investigators

  • Medical Director · Merck Sharp & Dohme LLC

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-12-18
Primary Completion
2024-08-26
Completion
2026-04-15
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Belgium
  • Brazil
  • Canada
  • Chile
  • Colombia
  • Czechia
  • France
  • Germany
  • Hungary
  • Israel
  • Italy
  • Japan
  • Poland
  • Russia
  • South Africa
  • South Korea
  • Spain
  • Taiwan
  • Turkey (Türkiye)
  • Ukraine

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03740165 on ClinicalTrials.gov