Overview
The second generation of mesothelin targeted CAR-T cells that secret a fusion protein of IL21 and scfv against PD1 have been constructed and their anti-cancer function has been verified by multiple in vitro and in vivo studies. Clinical studies will be performed to test anti-cancer function of the CAR-T cells for immunotherapy of human cancer patients with Mesothelin expressions. In this phase I study, the safety, tolerance, and preliminary efficacy of the Mesothelin-CAR-T cell immunotherapy on human cancers will firstly be evaluated.
Description
- Choose appropriate patients with advanced pancreatic cancer or other cancers, with written consent for this study;
- Perform biopsy to determine the expression of Mesothelin of the tumors by western blotting or IHC;
- Collect blood from the patients and isolate mononuclear cells, activate the T cells and transfect the T cells with Mesothelin targeting CAR, amplify the transfected T cells as needed, test the quality and killing activity of the CAR-T cells and then transfer them back the patients via systemic or local injections, and follow up closely to collect related results as required;
- To enhance the killing capability, cotreatment the patients with PD1/PDL1/CTLA4 antibodies may be applied;
- Evaluate the clinical results as needed.
Eligibility
Inclusion Criteria:
- Patients with advanced cancer that expresses Mesothelin protein; 2. Life expectancy >12 weeks; 3. Adequate heart, lung, liver, kidney, and blood function; 4. Available autologous transduced T cells with greater than or equal to 20% expression of Mesothelin-CAR determined by flow-cytometry and killing of Mesothelin-positive targets greater than or equal to 20% in cytotoxicity assay; 5. Informed consent explained to, understood by and signed by patient/guardian. Patient/guardian given copy of informed consent.
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Exclusion Criteria:
- Had accepted gene therapy before;
- Severe virus infection such as HBV, HCV, HIV, et al;
- Known HIV positivity;
- Active infectious disease related to bacteria, virus,fungi,et al;
- Other severe diseases that the investigators consider not appropriate;
- Pregnant or lactating women;
- Systemic steroid treatment (greater than or equal to 0.5 mg prednisone equivalent/kg/day);
- Other conditions that the investigators consider not appropriate. -