Life sciences · Phase 1/2 Trial
ClinicalTrials.gov · October 1, 2026
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Phase 1/2 Trial.
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Registry record from ClinicalTrials.gov (NCT07227597). This is a study registration, not published results. Lead sponsor: Merck Sharp & Dohme LLC. Recruitment status: RECRUITING. Phase: PHASE1, PHASE2. Study type: INTERVENTIONAL. Enrollment: 170 participants (ESTIMATED). Conditions: Small Cell Lung Cancer Extensive Stage. Interventions: DRUG: Gocatamig; DRUG: I-DXd; DRUG: Atezolizumab; DRUG: Carboplatin; DRUG: Etoposide; DRUG: Rescue Medications. Primary outcome measures: Number of Participants Who Experience an Adverse Event (AE) , Up to approximately 58 months; Number of Participants Who Experience One or More Dose-Limiting Toxicities (DLTs) , Up to approximately 21 days; Number of Participants Who Discontinue Study Intervention Due to an AE , Up to approximately 58 months; Objective Response Rate (ORR) , Up to approximately 58 months. Brief summary: Researchers are looking for new ways to treat extensive-stage small cell lung cancer (ES-SCLC). ES-SCLC is a type of lung cancer that has spread throughout the lung, to the other lung, or to other parts of the body. A standard (usual) treatment for ES-SCLC uses both chemotherapy and immunotherapy. * Chemotherapy is a treatment that works to destroy cancer cells or stop them from growing. * Immunotherapy is a treatment that helps the immune system fight cancer. Gocatamig and I-DXd (short for ifinatamab deruxtecan) are study medicines. Researchers want to know if giving gocatamig and I-DXd together can treat ES-SCLC. Researchers will also look at giving the study medicines with standard treatment. Gocatamig is a T-cell engager therapy. I-DXd is an antibody drug conjugate. * T-cell engager therapy is a certain type of immunotherapy that uses T-cells to find and destroy cancer cells. * A T-cell is a type of white blood cell, which are cells that help the body fight infection. * An antibody drug conjugate (ADC) is a treatment that attaches to a protein on cancer cells and delivers treatment to destroy those cells. The goals of this study are to learn: * About the safety of combining gocatamig and I-DXd and if people tolerate them together * If people who receive gocatamig and I-DXd have ES-SCLC respond, which means the cancer gets smaller or goes away