ClinicalTrials.gov record
Active, not recruiting Phase 3 Interventional

Study of Pembrolizumab (MK-3475) Versus Placebo in Participants With Esophageal Carcinoma Who Are Receiving Chemotherapy and Radiation Therapy (MK-3475-975/KEYNOTE-975)

ClinicalTrials.gov ID: NCT04210115

Public ClinicalTrials.gov record NCT04210115. 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 May 6, 2026, 8:52 AM 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 Randomized, Double-blind, Placebo-controlled Phase 3 Trial of Pembrolizumab (MK-3475) Versus Placebo in Participants With Esophageal Carcinoma Receiving Concurrent Definitive Chemoradiotherapy (KEYNOTE 975)

Study identification

NCT ID
NCT04210115
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Enrollment
703 participants

Conditions and interventions

Interventions

  • 5-FU Drug
  • cisplatin Drug
  • leucovorin Drug
  • levoleucovorin Drug
  • oxaliplatin Drug
  • pembrolizumab Biological
  • placebo Drug
  • radiotherapy Radiation

Drug · Biological · Radiation

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
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 27, 2020
Primary completion
Jan 31, 2027
Completion
Jan 31, 2027
Last update posted
Nov 14, 2024

2020 – 2027

United States locations

U.S. sites
19
U.S. states
18
U.S. cities
19
Facility City State ZIP Site status
MemorialCare Health System - Long Beach Medical Center-Oncology ( Site 0691) Long Beach California 90806
Columbus Regional Research Institute ( Site 0047) Columbus Georgia 31904
University of Kansas Cancer Center ( Site 0023) Westwood Kansas 66205
Cancer Center of Kansas ( Site 0058) Wichita Kansas 67214
University Medical Center ( Site 0035) New Orleans Louisiana 70112
Greater Baltimore Medical Center ( Site 0031) Baltimore Maryland 21204
Dana Farber Cancer Center ( Site 0034) Boston Massachusetts 02215
Henry Ford Hospital ( Site 0685) Detroit Michigan 48202
University of Missouri ( Site 0688) Columbia Missouri 65212
Renown Regional Medical Center ( Site 0706) Reno Nevada 89502
Rutgers Cancer Institute of New Jersey ( Site 0695) New Brunswick New Jersey 08903
Weill Cornell Medical College ( Site 0053) New York New York 10065
Stephenson Cancer Center ( Site 0044) Oklahoma City Oklahoma 73104
Oregon Health & Science University Center for Health & Healing 2- CHH2 ( Site 0060) Portland Oregon 97239
Allegheny Health Network ( Site 0042) Pittsburgh Pennsylvania 15212
Thompson Cancer Survival Center ( Site 0696) Knoxville Tennessee 37916
Utah Cancer Specialists ( Site 0697) Salt Lake City Utah 84106
Cancer Care Northwest - Spokane Valley ( Site 0036) Spokane Valley Washington 99216
University of Wisconsin Hospital and Clinics ( Site 0033) Madison Wisconsin 53792

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 151 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04210115, 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 Nov 14, 2024 · Synced May 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04210115 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →