PSMA-specific CAR-T Cell Therapy

Last updated: June 10, 2020
Sponsor: Shenzhen Geno-Immune Medical Institute
Overall Status: Active - Recruiting

Phase

1/2

Condition

N/A

Treatment

N/A

Clinical Study ID

NCT04429451
GIMI-IRB-20003
  • Ages 1-75
  • All Genders

Study Summary

The purpose of this clinical trial is to assess the feasibility, safety and efficacy of PSMA-specific CAR-T cell therapy in patients with PSMA positive tumor. Another goal of the study is to learn more about the function of the PSMA CAR-T cells and their persistency in the patients.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  1. Patients with tumors have received standard first-line therapy and have been judged tobe non-respectable, metastatic, progressive or recurrent.

  2. The expression status of PSMA antigens in the tumor tissue will be determined foreligibility. Positive expression is defined by PMSA antibody staining results based onimmunohistochemistry or flow cytometry analyses.

  3. Body weight greater than or equal to 10 kg.

  4. Age: ≥1 year and ≤ 75 years of age at the time of enrollment.

  5. Life expectancy: at least 8 weeks.

  6. Prior Therapy: There is no limit to the number of prior treatment regimens. Any grade 3 or 4non-hematologic toxicity of any previous therapy must have resolved to grade 2 orless.

  7. Participant must not have received hematopoietic growth factors for at least 1 weekprior to mononuclear cells collection.

  8. At least 7 days must have elapsed since the completion of therapy with a biologicagent, targeted agent, tyrosine kinase inhibitor or a metronomic non-myelosuppressiveregimen.

  9. At least 4 weeks must have elapsed since prior therapy that included a monoclonalantibody.

  10. At least 1 week since any radiation therapy at the time of study entry.

  11. Karnofsky/jansky score of 60% or greater.

  12. Cardiac function: Left ventricular ejection fraction greater than or equal to 40/55percent.

  13. Pulse Ox greater than or equal to 90% on room air.

  14. Liver function: defined as alanine transaminase (ALT) <3x upper limit of normal (ULN),aspartate aminotransferase (AST) <3x ULN; serum bilirubin and alkaline phosphatase <2xULN.

  15. Renal function: Patients must have serum creatinine less than 3 times upper limit ofnormal.

  16. Marrow function: White blood cell count ≥1000/ul, Absolute neutrophil count ≥500/ul,Absolute lymphocyte count ≥500/ul, Platelet count ≥25,000/ul (not achieved bytransfusion).

  17. Patients with known bone marrow metastatic disease will be eligible for study as longas they meet hematologic function criteria, and the marrow disease does not havehematologic toxicity.

  18. For all patients enrolled in this study, themselves or their parents or legalguardians must sign an informed consent and assent.

Exclusion

Exclusion Criteria:

  1. Existing severe illness (e.g. significant cardiac, pulmonary, hepatic diseases, etc.)or major organ dysfunction, or greater than grade 2 hematologic toxicity.

  2. Untreatable central nervous system (CNS) metastasis: Patients with previous CNS tumorinvolvement that has been treated and is stable for at least 6 weeks followingcompletion of therapy are eligible.

  3. Previous treatment with other genetically engineered PSMA-specific CAR T cells orantibody therapy.

  4. Active HIV, Hepatitis B virus (HBV), Hepatitis C virus (HCV) infection or uncontrolledinfection.

  5. Patients who require systemic corticosteroid or other immunosuppressive therapy.

  6. Evidence of tumor potentially causing airway obstruction.

  7. Inability to comply with protocol requirements.

  8. Insufficient CAR T cells availability.

Study Design

Total Participants: 100
Study Start date:
January 01, 2020
Estimated Completion Date:
December 31, 2024

Study Description

Prostate-specific membrane antigen (PSMA) is expressed in normal prostate and is upregulated in prostate tumor. Therefore, PSMA is a promising target for antigen-specific immunotherapy in patients with prostate cancer. However, it has been reported that PSMA expression is not restricted to prostate cancer and PSMA is often enriched in the tumor stromal environment. By immunostaining, we found that PSMA is expressed in a variety of solid tumors, including brain tumor, neuroblastoma and some lymphoma tumor tissues.

This study aims to use T cells obtained directly from the patient, which can be genetically modified to express PSMA-specific chimeric antigen receptor (CAR). The CAR molecules enable the T cells to recognize and kill tumor cells or tumor stromal tissues through the recognition of a surface antigen, PSMA. This study will evaluate the side effects and the best dose of anti-PSMA CAR-T cells to target PSMA positive tumors and tumor microenvironment.

Connect with a study center

  • Shenzhen Children's Hospital

    Shenzhen, Guangdong 518000
    China

    Active - Recruiting

  • Shenzhen Geno-immune Medical Institute

    Shenzhen, Guangdong 518000
    China

    Active - Recruiting

  • Shenzhen Hospital of Southern Medical University

    Shenzhen, Guangdong 518101
    China

    Active - Recruiting

  • The Seventh Affilliated Hospital of Sun Yat-Sen University

    Shenzhen, Guangdong 518107
    China

    Active - Recruiting

Map preview placeholder

Not the study for you?

Let us help you find the best match. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.