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Study identifier: NCT02332668 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Study of Pembrolizumab (MK-3475) in Pediatric Participants With an Advanced Solid Tumor or Lymphoma (MK-3475-051/KEYNOTE-051)

Condition: Melanoma · Lymphoma · Solid Tumor  ·  Sponsor: Merck Sharp & Dohme LLC

PhasePhase 1/Phase 2
Planned participants370
Who can joinAll sexes, 6 Months to 17 Years
Healthy volunteersNo

About this study

Researchers are looking for new ways to treat children with different types of melanoma (skin cancer), solid tumors, and lymphomas (blood cancers) that are any of these: * Advanced, which means cancer spread in the body or cannot be removed with surgery * Relapsed, which means cancer has come back after it had responded to previous treatment (responded means it stopped growing, gets smaller, or disappeared) * Refractory, which means cancer did not respond to previous treatment Pembrolizumab is an immunotherapy, which is a treatment that helps the immune system fight cancer. Researchers want to learn if different doses of pembrolizumab can cause at least 1 of the types of cancer to get smaller or go away. With Amendment 8, enrollment of participants with solid tumors and participants 6 months to under 12 years old with melanoma were closed. With Amendment 13, enrollment was closed for participants with relapsed refractory classical Hodgkin lymphoma (rrCHL), microsatellite instabilty-high (MSI-H) solid tumors, tumor-mutational burden-high (TMB-H) solid tumors, and participants 12 years old to \<18 years old with advanced melanoma.

This description comes directly from the study's public registry record.

Talk to the study team

Toll Free Number  ·  1-888-577-8839  ·  Trialsites@msd.com

Always discuss trial participation with your own doctor first.

Locations (16)

Call for Information (Investigational Site 0019)Aurora, Colorado, United StatesRecruiting
Call for Information (Investigational Site 0024)Chicago, Illinois, United StatesRecruiting
Call for Information (Investigational Site 0026)Boston, Massachusetts, United StatesRecruiting
Call for Information (Investigational Site 0031)New York, New York, United StatesRecruiting
Call for Information (Investigational Site 0070)Fargo, North Dakota, United StatesRecruiting
Call for Information (Investigational Site 0071)Sioux Falls, South Dakota, United StatesRecruiting
Call for Information (Investigational Site 0054)Dallas, Texas, United StatesRecruiting
MSD BrasilSão Paulo, BrazilRecruiting
MSD FranceParis, FranceRecruiting
MSD Sharp & Dohme GmbHMünchen, GermanyRecruiting
Merck Sharp & Dohme Co. Ltd.Hod HaSharon, IsraelRecruiting
MSD Italia S.r.l.Rome, ItalyRecruiting

+ 4 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT02332668