Skip to main content
OpenTrials
Recruiting

NCT Number: NCT07242417

TC-G203 for Patients With GPC3-Positive Advanced Solid Tumors

This is a single-arm, open-label, dose-escalation clinical trial designed to evaluate the safety, tolerability, expansion, and persistence of TC-G203 in patients with GPC3-positive recurrent or metastatic solid tumors who have progressed after prior therapies. The primary objective is to determine the maximum tolerated dose (MTD), with a secondary aim to assess preliminary clinical efficacy in solid tumors.

Recruiting

Interested in participating?

Request Info

Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Early Phase 1

Primary location

Beijing Gobroad Hospital, Beijing, Beijing Municipality, China

Loading trial locations.

About this study

This study is designed as a single-arm, open-label, single-dose clinical trial to evaluate the safety and efficacy of TC-G203 therapy in patients with recurrent or metastatic solid tumors. The study protocol consists of five main stages: (1) patient screening, (2) collection of peripheral blood mononuclear cells (PBMCs), (3) lymphodepletion chemotherapy, (4) TC-G203 infusion, and (5) post-infusion follow-up.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants must voluntarily provide written informed consent.
  • Aged 18-75 years (inclusive).
  • Life expectancy ≥ 12 weeks.
  • ECOG performance status 0-1.
  • Failed or unsuitable for standard therapy.
  • At least one measurable lesion per RECIST 1.1.
  • GPC3-positive tumor confirmed by immunohistochemistry.
  • Adequate organ and bone marrow function.
  • Effective contraception required for participants of childbearing potential.
  • Adequate venous access for leukapheresis.

Exclusion criteria

  • Primary CNS malignancy or uncontrolled CNS metastases.
  • Other malignancies within 5 years
  • Active autoimmune disease or history of autoimmune disease.
  • Immunodeficiency, including HIV positivity
  • Bleeding disorders (inherited or acquired).
  • Clinically significant cardiovascular disease.
  • Active infection (including tuberculosis, hepatitis C, syphilis).
  • Pregnant or breastfeeding women.
  • Severe systemic or psychiatric illness.
  • Prior cell or gene therapy.
  • Severe drug hypersensitivity history.
  • Investigator-assessed unsuitability for trial participation. -

Treatment and study plan

TC-G203 cells treatment

Biological

TC-G203 CAR-T cells Treatment follows a lymphodepletion Drug: Fludarabine and Cyclophosphamide.

Other names: Cyclophosphamide, Fludarabine

Primary outcomes

  1. Incidence of Dose-Limiting Toxicities (DLT) and Maximum Tolerated Dose (MTD)

    Time frame: Within 28 days after TC-G203 infusion

    DLT is defined as any CAR-T cell-related adverse event graded per ASTCT 2019 CRS criteria and NCI CTCAE v5.0, including: ≥Grade 4 hematologic toxicity not recovering to ≤Grade 2 by Day 28, ≥Grade 4 CRS lasting ≥3 days, ≥Grade 3 ICANS, or ≥Grade 3 non-hematologic toxicity lasting >7 days (excluding fever, fatigue, nausea/vomiting).

Secondary outcomes

  1. Tumor Response and Survival Outcomes

    Time frame: Up to 24 months

    Objective Response Rate (ORR): Number of participants with complete response (CR) or partial response (PR) Duration of Response (DOR): Time from first documented response to disease progression or death Progression-Free Survival (PFS): Time from TC-G203 infusion to disease progression or death Overall Survival (OS): Time from TC-G203 infusion to death from any cause

Other outcomes

  1. Duration of Persistence of TC-G203 in Peripheral Blood

    Time frame: Up to 24 months

    Persistence of TC-G203 CAR-T cells in peripheral blood over time measured by qPCR and flow cytometry

  2. Concentration of Pro-inflammatory Cytokines and Tumor Markers in Peripheral Blood

    Time frame: Up to 24 months

    Serum levels of IL-6, TNF-α, IL-8, IFN-γ, CRP, AFP, and sGPC3 at specified time points

Study contacts

Contact information is provided by the study sponsor or research team.

Changsong Qi

CONTACT

[email protected]

+8601050847838

Sponsors and collaborators

Lead sponsor

Beijing GoBroad Hospital

Other

Registry information

Official study title

A Preliminary Clinical Study of TC-G203 for Patients With GPC3-Positive Recurrent/Metastatic Solid Tumors

Important dates

Study start
2025
Primary completion
2026
Study completion
2027
First posted
Nov 21, 2025
Registry last updated
Jan 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.