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Active, not recruiting Phase 2 Interventional

An Efficacy Study of Adjuvant Treatment With the Personalized Cancer Vaccine mRNA-4157 and Pembrolizumab in Participants With High-Risk Melanoma (KEYNOTE-942)

ClinicalTrials.gov ID: NCT03897881

Public ClinicalTrials.gov record NCT03897881. 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 17, 2026, 10:45 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 Phase 2 Randomized Study of Adjuvant Immunotherapy With the Personalized Cancer Vaccine mRNA-4157 and Pembrolizumab Versus Pembrolizumab Alone After Complete Resection of High-Risk Melanoma (KEYNOTE- 942)

Brief summary

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

The purpose of this study is to assess whether postoperative adjuvant therapy with mRNA-4157 and pembrolizumab improves recurrence free survival (RFS) compared to pembrolizumab alone in participants with complete resection of cutaneous melanoma and a high risk of recurrence.

Study identification

NCT ID
NCT03897881
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2
Lead sponsor
ModernaTX, Inc.
Industry
Enrollment
267 participants

Conditions and interventions

Conditions

Interventions

Drug · Biological

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
Jul 18, 2019 (Actual)
Primary completion
Nov 21, 2032 (Estimated)
Completion
Nov 21, 2032 (Estimated)
Last update posted
Sep 8, 2026

2019 – 2032

United States locations

U.S. sites
17
U.S. states
15
U.S. cities
16
Facility City State ZIP Site status
University of Arizona Tucson Arizona 85719 —
California Pacific Medical Center Research Institute -CPMCRI San Francisco California 94115 —
Angeles Clinic and Research Institute Santa Monica California 90404 —
University of Colorado Cancer Center Aurora Colorado 80045 —
Smilow Cancer Center at Yale New Haven Hospital New Haven Connecticut 06520 —
Lombardi Cancer Center Washington D.C. District of Columbia 20007 —
Orlando Health UF Health Cancer Center Orlando Florida 32806 —
Northside Hospital Atlanta Georgia 30342 —
UPMC Hillman Cancer Center Chicago Illinois 60637 —
Massachusetts General Hospital Boston Massachusetts 02114 —
Dana Farber Cancer Institute Boston Massachusetts 02115 —
Washington University School of Medicine St Louis Missouri 63110 —
Hackensack University Medical Center Hackensack New Jersey 07601 —
NYU Langone Medical Center New York New York 10016 —
Providence Cancer Institute Portland Oregon 97213 —
Sarah Cannon Cancer Center Nashville Tennessee 37203 —
Texas Oncology PA Dallas Texas 75246 —

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 6 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03897881, 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 Sep 8, 2026 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03897881 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →