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NCT06780111PHASE1, PHASE2RECRUITING

Substudy 06E: Umbrella Study of Combination Therapies in Esophageal Cancer (MK-3475-06E/KEYMAKER-U06)

A Phase 1/2 Open-Label, Umbrella Platform Design Study of Investigational Agents in Combination With Pembrolizumab (MK-3475) With or Without Chemotherapy in Participants With 1L Locally Advanced Unresectable/Metastatic Esophageal Cancer: KEYMAKER-U06 Substudy 06E

Sponsor: Merck Sharp & Dohme LLC + Daiichi Sankyo

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Esophageal Squamous Cell Carcinoma
Interventions
Pembrolizumab, I-DXd, Leucovorin, Levoleucovorin
Enrollment
298 participants
Primary completion
Jan 2032
Study completion
Jan 2032
First posted
Jan 2025
Last updated
Mar 2026

Primary Endpoints (CT.gov)

Percentage of Participants who Experience Dose Limiting Toxicities (DLTs) During the Safety Lead-In Phase

Time frame: Up to approximately 28 days

Percentage of Participants who Experience an Adverse Event (AE)

Time frame: Up to approximately 77 months

Objective Response Rate (ORR)

Time frame: Up to approximately 77 months

Secondary Endpoints

Duration of Response (DOR)

Progression-Free Survival (PFS)

Overall Survival (OS)

Eligibility Criteria

Inclusion Criteria The main inclusion criteria include but are not limited to the following: * Has histologically or cytologically confirmed diagnosis of locally advanced unresectable or metastatic squamous cell carcinoma of the esophagus in first-line (1L) setting. * Has measurable disease per RECIST 1.1 as assessed by the local site. investigator or designee/radiology assessment and verified by BICR. Lesions situated in a previously irradiated area are considered measurable if progression has been shown in such lesions. * Has AEs due to previous anticancer therapies of ≤Grade 1 or baseline (except alopecia and vitiligo). Endocrine-related AEs adequately treated with hormone replacement are acceptable. * Human immunodeficiency virus (HIV)-infected participants must have well controlled HIV on antiretroviral therapy (ART). * Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. * Has adequate organ function. Exclusion Criteria The main exclusion criteria inclu

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✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov