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OncoMatch/Clinical Trials/NCT07148050

Immunotherapy for Solid Tumor Malignancies in Pediatrics Using Interleukin-15 and -21 Armored Glypican-3-specific Chimeric Antigen Receptor T Cells

Is NCT07148050 recruiting? Yes, currently enrolling (May 2026). This Phase 1 trial studies SC-CAR.GPC3xIL15.21 CAR T cells for solid tumor (excluding cns).

Phase 1RecruitingSeattle Children's HospitalNCT07148050Data as of May 2026

Treatment: SC-CAR.GPC3xIL15.21 CAR T cellsThis Phase 1, open-label, non-randomized study will enroll pediatric and young adult subjects with relapsed or refractory non-central nervous system (CNS) malignant solid tumors expressing glypican-3 (GPC3) to examine the safety, feasibility, and efficacy of administering T cell products derived from peripheral blood mononuclear cells (PBMC) that have been genetically modified to co-express a GPC3-specific chimeric antigen receptor (CAR), interleukin (IL)-15 and IL-21 as well as the inducible caspase 9 (iC9) suicide gene (SC-CAR.GPC3xIL15.21 T cells). A child or young adult meeting all eligibility criteria and meeting none of the exclusion criteria will have a blood sample collected, which will be used to bioengineer the CAR T cells targeting their tumor.

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Extracted eligibility criteria

Cancer type

Tumor Agnostic

Glioblastoma

Sarcoma

Rhabdomyosarcoma

Hepatocellular Carcinoma

Biomarker criteria

Required: GPC3 expression

Disease stage

Required: Stage BARCELONA LIVER CANCER STAGE A, BARCELONA LIVER CANCER STAGE B, BARCELONA LIVER CANCER STAGE C (Barcelona Liver Cancer)

Barcelona Liver Cancer Stage A, B or C

Prior therapy

Min 2 prior lines

Must have received: cytotoxic chemotherapy — up-front therapy and at least one salvage treatment cycle

Refractory or relapsed disease after treatment with up-front therapy and at least one salvage treatment cycle

Lab requirements

Blood counts

Adequate laboratory values

Kidney function

Adequate organ function

Liver function

Child-Pugh Turcotte Score <7

Cardiac function

No congestive heart failure (NYHA III or IV), unstable angina, serious uncontrolled cardiac arrhythmia, myocardial infarction within 6 months, or history of myocarditis

Adequate organ function; Child-Pugh Turcotte Score <7; Adequate laboratory values; Congestive heart failure (as defined by New York Heart Association Functional Classification III or IV), unstable angina, serious uncontrolled cardiac arrhythmia, a myocardial infarction within 6 months prior to study entry or a history of myocarditis

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

US trial sites

  • Seattle Children's Hospital · Seattle, Washington

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