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

Study Purpose

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 patients with complete resection of cutaneous melanoma and a high risk of recurrence.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Resectable cutaneous melanoma metastatic to a lymph node and at high risk of recurrence.
  • - Complete resection within 13 weeks before study enrollment.
  • - Disease free at study entry (after surgery) with no loco-regional relapse or distant metastasis and no clinical evidence of brain metastases.
  • - Has an FFPE tumor sample available suitable for sequencing.
  • - ECOG Performance Status 0 or 1.
  • - Normal organ and marrow function reported at screening.

Exclusion Criteria:

  • - Prior malignancy, unless no evidence of that disease for at least 5 years prior to study entry.
  • - Prior systemic anti-cancer treatment (except surgery and interferon for thick primary melamonas.
Radiotherapy after lymph node dissection is permitted)
  • - Live vaccine within 30 days prior to the first dose of pembrolizumab.
  • - Transfusion of blood or administration of colony stimulating factors within 2 weeks of the screening blood sample.
  • - Active autoimmune disease.
  • - Immunodeficiency, systemic steroid therapy or any other immunosuppressive therapy within 7 days prior to the first dose of pembrolizumab.
  • - Solid organ or allogeneic bone marrow transplant.
  • - Pneumonitis or a history of (noninfectious) pneumonitis that required steroids.
  • - Prior interstitial lung disease.
  • - Clinically significant heart failure.
  • - Known history of HIV.
  • - Known active hepatitis B or C.
- Active infection requiring treatment

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 2
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

ModernaTX, Inc.
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Principal Investigator Affiliation N/A
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries Australia, United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Arms & Interventions


Experimental: Combination treatment arm

mRNA-4157 and pembrolizumab

Active Comparator: Control treatment arm

Pembrolizumab only


Biological: - mRNA-4157

Personalized cancer vaccine

Biological: - Pembrolizumab

Intravenous infusion

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you. Please note all sites listed may not currently be active in the trial. Please continue to check back for additional site locations.

California Pacific Medical Center Research Institute -CPMCRI
Recruiting | San Francisco, California, United States, 94115
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Angeles Clinic and Research Institute
Recruiting | Santa Monica, California, United States, 90404
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University of Colorado Cancer Center
Recruiting | Aurora, Colorado, United States, 80045
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Smilow Cancer Center at Yale New Haven Hospital
Recruiting | New Haven, Connecticut, United States, 06520
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Lombardi Cancer Center
Recruiting | Washington, District of Columbia, United States, 20007
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SCRI Florida Cancer Specialists East
Recruiting | West Palm Beach, Florida, United States, 33401
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Massachusetts General Hospital
Not yet recruiting | Boston, Massachusetts, United States, 02114
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Washington University School of Medicine
Recruiting | Saint Louis, Missouri, United States, 63110
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Hackensack University Medical Center
Recruiting | Hackensack, New Jersey, United States, 07601
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NYU Langone Medical Center
Recruiting | New York, New York, United States, 10016
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Oregon Health & Science University
Recruiting | Portland, Oregon, United States, 97239
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Sarah Cannon Cancer Center
Recruiting | Nashville, Tennessee, United States, 37203
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Texas Oncology PA
Recruiting | Dallas, Texas, United States, 75246
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International Sites

Westmead Hospital
Recruiting | Westmead, New South Wales, Australia, 2145
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Princess Alexandra Hospital
Recruiting | Woolloongabba, Queensland, Australia, 4102
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St John of God Hospital Subiaco
Recruiting | Subiaco, Western Australia, Australia, 6008
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