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OncoMatch/Clinical Trials/NCT06780111

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

Is NCT06780111 recruiting? Yes, currently enrolling (Sep 2026). This Phase 1/2 trial studies multiple treatments for esophageal squamous cell carcinoma.

Phase 1/2RecruitingMerck Sharp & Dohme LLCNCT06780111Data as of Sep 2026Location: International · 15 countries

Treatment: Pembrolizumab · I-DXd · Leucovorin · Levoleucovorin · 5-Fluorouracil (5-FU) · Oxaliplatin · Sacituzumab tirumotecan · Rescue MedicationResearchers are looking for new ways to treat esophageal squamous cell carcinoma (ESCC). ESCC is a type of cancer that starts in certain cells that line the esophagus. The esophagus is the tube that connects the throat to the stomach. This study will look at ESCC that is either locally advanced unresectable, which means it has spread into tissue near where it started and cannot be completely removed by surgery, or metastatic, which means it has spread to other body parts. Available treatments for these types of ESCC include pembrolizumab and chemotherapy. Pembrolizumab is an immunotherapy, which is a treatment that helps the immune system fight cancer. Chemotherapy is medicine that destroys cancer cells or stops them from growing. Researchers want to learn about giving pembrolizumab and investigational agents, with or without chemotherapy to treat ESCC. Ifinatamab deruxtecan (I-DXd), is an antibody-drug conjugate (ADC). An ADC attaches to a protein on cancer cells and delivers treatment to destroy those cells. The main goal of this study is to learn about the safety of investigational agents and pembrolizumab with or without chemotherapy and if people tolerate them. Researchers also want to learn how cancer responds (gets smaller or goes away) to the study treatments.

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Extracted eligibility criteria

Treatments studied

Immunotherapy

Pembrolizumab

Chemotherapy

5-Fluorouracil (5-FU)Oxaliplatin

Other

I-DXdLeucovorinLevoleucovorinSacituzumab tirumotecanRescue Medication

Cancer type

Esophageal Carcinoma

Performance status

ECOG 0–1(Restricted strenuous activity)

Prior therapy

Max 0 prior lines

Cannot have received: systemic anticancer therapy for locally advanced unresectable or metastatic esophageal cancer

Has had systemic anticancer therapy for locally advanced unresectable or metastatic esophageal cancer

Cannot have received: anti-PD-1/PD-L1/PD-L2 or co-inhibitory T-cell receptor therapy

Has received prior therapy with an anti-programmed cell death 1 protein (PD-1), anti-programmed cell death ligand 1 (PD-L1), or anti-programmed cell death ligand 2 (PD-L2) agent, or with an agent directed to another stimulatory or coinhibitory T-cell receptor

Lab requirements

Blood counts

adequate organ function

Kidney function

adequate organ function

Liver function

adequate organ function

Cardiac function

QTcF < 470 msec; no clinically significant cardiovascular disease within 6 months

Has adequate organ function. Has inadequate cardiac function assessed as by a corrected QT interval by Fredericia (QTcF) value 3C470 msec. Has clinically significant cardiovascular disease within 6 months from first dose of study intervention, including New York Heart Association Class III or IV congestive heart failure, unstable angina, myocardial infarction, cerebral vascular accident, or cardiac arrhythmia associated with hemodynamic instability.

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • UPMC Hillman Cancer Center ( Site 1904) · Pittsburgh, Pennsylvania

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See all sites on ClinicalTrials.gov →

Frequently asked questions

Is NCT06780111 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior systemic anticancer therapy for locally advanced unresectable or metastatic esophageal cancer, anti-PD-1/PD-L1/PD-L2 or co-inhibitory T-cell receptor therapy disqualifies patients from enrollment.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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