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A Phase I/II Study of Pembrolizumab (MK-3475) in children with advanced melanoma or a PD-L1 positive advanced, relapsed or refractory solid tumor or lymphoma (KEYNOTE-051)

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-501257-36-00
Acronym
MK3475-051
Enrollment
69
Registered
2023-04-03
Start date
2015-03-19
Completion date
Unknown
Last updated
2025-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

advanced, as measured by the F1CDx™ assay in children from 6 months (or 3 years for rrcHL Cohort) to less than 18 years old., excluding MSIH/ deficient mismatch repair (dMMR) tumors, or advanced, or any advanced relapsed or refractory solid tumor that is tumormutational- burden ≥10 mut/Mb (TMB-H), relapsed or refractory classical Hodgkin lymphoma (rrcHL), relapsed or refractory microsatellite-instability-high (MSI-H) solid tumors, relapsed or refractory PD-L1 positive malignant solid tumor or other lymphoma, Treatment of advanced melanoma

Brief summary

Objective Response Rate (ORR) by Response Evaluation Criteria in Solid Tumors and Other Lymphoma Version 1.1 (RECIST 1.1) per Site Assessment (Each Disease Indication Evaluated Separately), ORR by RECIST 1.1 per Site or BIRC Assessment for MSI-H or TMBH Solid Tumors (Each Cohort Evaluated Separately), ORR by International Working Group (IWG) Response Criteria (Cheson, 2007) per BICR Assessment for rrcHL Cohort, Number of Participants with Dose-Limiting Toxicities (DLTs), Number of Participants Experiencing Adverse Events (AEs), Number of Participants Discontinuing Study Drug Due to AEs

Detailed description

ORR by IWG Response Criteria (Cheson, 2007) per Site Assessment (rrcHL Cohort), DOR per RECIST 1.1 by Site Assessment (Advanced Melanoma, Solid Tumors and Other Lymphoma, Each Disease Indication Is Evaluated Separately), DOR per RECIST 1.1 by Site or BIRC Assessment (MSI-H and TMBH, Each Cohort Is Evaluated Separately), DOR per IWG 2007 (Cheson, 2007) Response by BICR Assessment (rrcHL Cohort), DOR per IWG 2007 (Cheson, 2007) Response by Site Assessment (rrcHL Cohort), DOR per Immune-related Response Evaluation Criteria in Solid Tumors (irRECIST) by Site Assessment (Solid Tumors and Other Lymphoma, Each Disease Indication Evaluated Separately), DOR per Immune-related Response Evaluation Criteria in Solid Tumors (irRECIST) by Site Assessment (MSI-H and TMB-H, Each Cohort Is Evaluated Separately), Progression-free Survival (PFS) Using RECIST 1.1 Criteria by Site Assessment (Solid Tumors and Other Lymphoma, Each Disease Indication Evaluated Separately), PFS using RECIST 1.1 Criteria by Site or BIRC Assessment (MSI-H and TMB-H, Each Cohort Evaluated Separately), PFS using IWG 2007 Criteria (Chesson 2007) by BICR Assessment (rrcHL Cohort), PFS using IWG 2007 Criteria (Chesson, 2007) by Site Assessment (rrcHL Cohort), PFS Using irRECIST Criteria by Site Assessment, Disease Control Rate by RECIST 1.1 Using Site Assessment (Solid Tumors and Other Lymphoma, Each Disease Indication Evaluated Separately), Disease Control Rate by RECIST 1.1 Using Site or BIRC Assessment (MSIH and TMB-H, Each Cohort Evaluated Separately), Disease Control Rate by irRECIST Using Site Assessment (Solid Tumors and Other Lymphomas, Each Disease Indication Evaluated Separately), Overall Survival, Objective irRECIST Response Rate by Site Assessment (Each Disease Indication Evaluated Separately), Area Under the Concentration Curve (AUC) for Pembrolizumab

Interventions

DRUGKEYTRUDA 25 mg/mL concentrate for solution for infusion

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 17 Years

Design outcomes

Primary

MeasureTime frame
Objective Response Rate (ORR) by Response Evaluation Criteria in Solid Tumors and Other Lymphoma Version 1.1 (RECIST 1.1) per Site Assessment (Each Disease Indication Evaluated Separately), ORR by RECIST 1.1 per Site or BIRC Assessment for MSI-H or TMBH Solid Tumors (Each Cohort Evaluated Separately), ORR by International Working Group (IWG) Response Criteria (Cheson, 2007) per BICR Assessment for rrcHL Cohort, Number of Participants with Dose-Limiting Toxicities (DLTs), Number of Participants Experiencing Adverse Events (AEs), Number of Participants Discontinuing Study Drug Due to AEs

Secondary

MeasureTime frame
ORR by IWG Response Criteria (Cheson, 2007) per Site Assessment (rrcHL Cohort), DOR per RECIST 1.1 by Site Assessment (Advanced Melanoma, Solid Tumors and Other Lymphoma, Each Disease Indication Is Evaluated Separately), DOR per RECIST 1.1 by Site or BIRC Assessment (MSI-H and TMBH, Each Cohort Is Evaluated Separately), DOR per IWG 2007 (Cheson, 2007) Response by BICR Assessment (rrcHL Cohort), DOR per IWG 2007 (Cheson, 2007) Response by Site Assessment (rrcHL Cohort), DOR per Immune-related Response Evaluation Criteria in Solid Tumors (irRECIST) by Site Assessment (Solid Tumors and Other Lymphoma, Each Disease Indication Evaluated Separately), DOR per Immune-related Response Evaluation Criteria in Solid Tumors (irRECIST) by Site Assessment (MSI-H and TMB-H, Each Cohort Is Evaluated Separately), Progression-free Survival (PFS) Using RECIST 1.1 Criteria by Site Assessment (Solid Tumors and Other Lymphoma, Each Disease Indication Evaluated Separately), PFS using RECIST 1.1 Criteria by Si

Countries

France, Germany, Italy, Netherlands, Portugal, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026