NCT07399769 Efficacy and Safety of MSLN CAR-T in Advanced Malignant Tumors

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 20 participants in total. It began in 2024-01-01 with a primary completion date of 2027-01-30.

Brief Summary

1. Study Title: Efficacy and safety of MSLN CAR-T in advanced malignant tumors 2. Study Objectives: Primary: To evaluate the safety and tolerability of MSLN-targeted CAR-T cell therapy in patients with stage III/IV advanced malignant tumors. Secondary: To preliminarily evaluate the efficacy of MSLN-targeted CAR-T cell therapy in this patient population. Exploratory: To assess in vivo expansion and persistence of infused MSLN-targeted CAR-T cells and explore correlations with clinical outcomes. 3. Participant Intervention: Participants will receive lymphodepleting chemotherapy (FC regimen: Fludarabine + Cyclophosphamide) on Days -5, -4, and -3 relative to the planned MSLN CAR-T cell infusion. The CAR-T cell infusion will be administered 72 hours after the completion of the FC chemotherapy.

Eligibility Criteria

Inclusion Criteria: 1. Aged 18-75 years (≥18 and ≤75 years), either sex; 2. The subject voluntarily participates in the study and provides written informed consent signed by the subject or his/her legally authorized representative; 3. Histopathologically confirmed unresectable, locally advanced, recurrent, or metastatic solid malignant tumor; according to the AJCC TNM staging system (8th edition, 2017), subjects diagnosed with stage III or stage IV solid malignant tumors; 4. Presence of measurable and evaluable lesions according to RECIST v1.1; 5. Positive MSLN expression in tumor tissue confirmed by immunohistochemistry (IHC); 6. The subject must have received standard first-line therapy and has experienced disease progression or is intolerant to such therapy; 7. The subject is not suitable for curative treatment modalities such as definitive chemoradiotherapy and/or surgery/immune checkpoint inhibitors, or refuses surgical resection; 8. No antibody-based therapy administered within 2 weeks prior to cell therapy; 9. ECOG performance status 0-2; 10. No contraindications to peripheral blood leukapheresis; 11. Estimated life expectancy ≥ 3 months. Exclusion Criteria: 1. History of allergy to any component of the cell product; 2. Any of the following hematologic abnormalities on complete blood count (CBC): WBC ≤ 1 × 10\^9/L, absolute neutrophil count (ANC) ≤ 0.5 × 10\^9/L, absolute lymphocyte count (ALC) ≤ 0.5 × 10\^9/L, or platelets (PLT) ≤ 25 × 10\^9/L; 3. Any of the following laboratory abnormalities, including but not limited to: serum total bilirubin ≥ 1.5 mg/dL; serum ALT or AST \> 2.5 × ULN; serum creatinine ≥ 2.0 mg/dL; 4. NYHA class III or IV heart failure per the New York Heart Association functional classification, or left ventricular ejection fraction (LVEF) \< 50% on echocardiography; 5. Abnormal pulmonary function with oxygen saturation (SpO₂) \< 92% on room air; 6. History of myocardial infarction, coronary angioplasty or stenting, unstable angina, or other clinically significant severe cardiac disease within 12 months prior to enrollment; 7. Grade 3 hypertension with poor blood pressure control despite medical treatment; 8. History of traumatic brain injury, disturbance of consciousness, epilepsy, or severe cerebral ischemic or hemorrhagic disease; 9. Presence of autoimmune disease, immunodeficiency, or other conditions requiring immunosuppressive therapy; 10. Presence of uncontrolled active infection; 11. Prior treatment with any CAR-T cell product or other genetically modified T-cell therapy; 12. Receipt of a live vaccine within 4 weeks prior to enrollment; 13. Positive test results for HIV, HBV, HCV, and TPPA/RPR, and/or HBV carriers; 14. History of alcohol abuse, illicit drug use, or psychiatric disorders; 15. Participation in any other clinical study within 3 months prior to enrollment; 16. Female subjects meeting any of the following: 1. pregnant or breastfeeding; or 2. planning pregnancy during the study period; or 3. of childbearing potential and unable/unwilling to use effective contraception; 17. Any other condition that, in the opinion of the investigator, makes the subject unsuitable for participation in this study.

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