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OncoMatch/Clinical Trials/NCT04503278

A Clinical Study of the Safety and Effectiveness of an Investigational Cell Therapy Given With and Without an Investigational RNA-based Vaccine in Patients With Organ Tumors

Is NCT04503278 recruiting? Yes, currently enrolling (May 2026). This Phase 1 trial studies multiple treatments including CLDN6 CAR-T and CLDN6 uRNA-LPX/CLDN6 modRNA-LPX for solid tumor.

Phase 1RecruitingBioNTech Cell & Gene Therapies GmbHNCT04503278Data as of May 2026

Treatment: CLDN6 CAR-T · CLDN6 uRNA-LPX/CLDN6 modRNA-LPXThis is a Phase I, FIH, open-label, multi-site, dose escalation trial with expansion cohorts to evaluate safety and preliminary efficacy of claudin 6 (CLDN6) chimeric antigen receptor T cells (CAR-T) with or without CLDN6 ribonucleic acid lipoplexes (RNA-LPX) in patients with CLDN6-positive relapsed or refractory advanced solid tumors.

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Extracted eligibility criteria

Cancer type

Tumor Agnostic

Biomarker criteria

Required: CLDN6 expression ≥50% cells at ≥2+ intensity (≥50% of tumor cells expressing CLDN6 protein at an intensity of ≥2+ by IHC)

CLDN6-positive tumor regardless of tumor histology defined as ≥ 50% of tumor cells expressing CLDN6 protein at an intensity of ≥2+ using a semi-quantitative immunohistochemistry assay in a central laboratory

Performance status

ECOG 0–1(Restricted strenuous activity)

Prior therapy

Cannot have received: CAR-T cell therapy

Exception: except CLDN6 CAR-T therapy

Has received prior CAR-T therapy, except CLDN6 CAR-T therapy.

Cannot have received: allogenic stem cell transplantation

Receipt of allogenic stem cell transplantation in the 5 years prior to enrollment into the trial.

Lab requirements

Blood counts

adequate hematologic function at screening as defined in the protocol

Kidney function

adequate renal function at screening as defined in the protocol

Liver function

adequate hepatic function at screening as defined in the protocol

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

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