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Active, not recruiting Phase 3 Interventional

Study of Pembrolizumab (MK-3475) Versus Chemotherapy in Mismatch Repair Deficient (dMMR) Advanced or Recurrent Endometrial Carcinoma (MK-3475-C93/KEYNOTE-C93/GOG-3064/ENGOT-en15)

ClinicalTrials.gov ID: NCT05173987

Public ClinicalTrials.gov record NCT05173987. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 27, 2026, 4:34 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3 Randomized, Open-label, Active-comparator Controlled Clinical Study of Pembrolizumab Versus Platinum Doublet Chemotherapy in Participants With Mismatch Repair Deficient (dMMR) Advanced or Recurrent Endometrial Carcinoma in the First-line Setting (KEYNOTE-C93/GOG-3064/ENGOT-en15)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to assess the safety and efficacy of treatment with pembrolizumab (MK-3475) compared to a combination of carboplatin and paclitaxel in women with mismatch repair deficient (dMMR) advanced or recurrent endometrial carcinoma who have not previously been treated with prior systemic chemotherapy. The primary study hypotheses are that pembrolizumab is superior to the combination of carboplatin and paclitaxel with respect to Progression Free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by Blinded Independent Central Review (BICR) and Overall Survival (OS).

Study identification

NCT ID
NCT05173987
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Enrollment
280 participants

Conditions and interventions

Interventions

Biological · Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 3, 2022 (Actual)
Primary completion
May 27, 2027 (Estimated)
Completion
May 27, 2027 (Estimated)
Last update posted
May 5, 2026

2022 – 2027

United States locations

U.S. sites
35
U.S. states
22
U.S. cities
31
Facility City State ZIP Site status
HonorHealth-USOR HonorHealth ( Site 8000) Phoenix Arizona 85016 —
Moores Cancer Center ( Site 0037) La Jolla California 92093-0698 —
Kaiser Permanente Riverside Medical Center ( Site 0045) Riverside California 92505 —
Yale-New Haven Hospital-Smilow Cancer Hospital at Yale-New Haven ( Site 0013) New Haven Connecticut 06511 —
Mount Sinai Cancer Center ( Site 0018) Miami Beach Florida 33140 —
Sarasota Memorial Heath Care System ( Site 0005) Sarasota Florida 34239 —
Northside Hospital ( Site 0017) Atlanta Georgia 30342 —
Southeastern Regional Medical Center ( Site 0046) Newnan Georgia 30265 —
Midwestern Regional Medical Center,Inc. DBA CTCA, Chicago ( Site 0003) Zion Illinois 60099 —
St. Vincent Hospital and Health Care Center, Inc ( Site 0006) Indianapolis Indiana 46260 —
Baptist Health Lexington ( Site 0042) Lexington Kentucky 40503 —
Maryland Oncology Hematology, P.A.-USOR Maryland Oncology Hematology, P.A. ( Site 8002) Rockville Maryland 20850 —
University of Massachusetts Medical School-Division of Gynecologic Oncology ( Site 0008) Worcester Massachusetts 01605 —
Karmanos Cancer Institute ( Site 0029) Detroit Michigan 48201 —
St. Dominic's Hospital ( Site 0024) Jackson Mississippi 39216 —
John Theurer Cancer Center at Hackensack University Medical Center ( Site 0026) Hackensack New Jersey 07601 —
The Blavatnik Family- Chelsea Medical Center at Mount Sinai ( Site 0023) New York New York 10011 —
Laura and Isaac Perlmutter Cancer Center at NYU Langone ( Site 0016) New York New York 10016 —
Icahn School of Medicine at Mount Sinai ( Site 0052) New York New York 10029 —
Memorial Sloan Kettering Cancer Center ( Site 0009) New York New York 10065 —
FirstHealth Clinical Trials ( Site 0050) Pinehurst North Carolina 28374 —
Sanford Medical Center ( Site 0054) Bismarck North Dakota 58501 —
Sanford Fargo Medical Center-Roger Maris Cancer Center ( Site 0055) Fargo North Dakota 58102 —
University of Cincinnati Medical Center-University of Cincinnati Cancer Center ( Site 0039) Cincinnati Ohio 45219 —
The James Cancer Hospital and Solove Research Institute at The Ohio State University Comprehensive C ( Site 0027) Columbus Ohio 43210 —
Providence Portland Medical Center ( Site 0031) Portland Oregon 97213 —
Sidney Kimmel Cancer Center - Jefferson Health ( Site 0053) Philadelphia Pennsylvania 19107 —
University of Pittsburgh Medical Center Magee-Womens Hospital ( Site 0034) Pittsburgh Pennsylvania 15213 —
AHN West Penn Hospital ( Site 0011) Pittsburgh Pennsylvania 15224 —
Asplundh Cancer Pavilion ( Site 0014) Willow Grove Pennsylvania 19090 —
Sanford Cancer Center-Gynecologic Oncology ( Site 0002) Sioux Falls South Dakota 57104 —
Texas Oncology - Austin-USOR Texas Oncology - Austin ( Site 8003) Austin Texas 78731 —
Texas Oncology - Dallas-USOR Texas Oncology - Dallas (Sammons) ( Site 8005) Dallas Texas 75246 —
Texas Oncology - Tyler-USOR Texas Oncology - Northeast Texas ( Site 8004) Tyler Texas 75702 —
VCU Health Adult Outpatient Pavillion ( Site 0022) Richmond Virginia 23219 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 159 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05173987, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 5, 2026 · Synced Oct 27, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05173987 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →