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Universal 4SCAR7U Targeting CD7-positive Malignancies

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT05995028
Recruitment Status : Recruiting
First Posted : August 16, 2023
Last Update Posted : October 12, 2023
Information provided by (Responsible Party):
Shenzhen Geno-Immune Medical Institute

Brief Summary:
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of universal CAR T cells based on 4SCAR7U design against CD7-positive hematological malignancies using CD7 specific universal CAR T cells. The study also aims to learn more about the function of CD7 targeting CAR T cells and their persistence in patients of hematological malignancies.

Condition or disease Intervention/treatment Phase
T-cell Acute Lymphoblastic Leukemia T-cell Acute Lymphoblastic Lymphoma Acute Myeloid Leukemia NK Cell Lymphoma Biological: Universal CD7-specific CAR gene-engineered T cells Phase 1

Detailed Description:

Hematological malignancies including B-, T-cell acute lymphoblastic leukemia (B-ALL, T-ALL), B and T cell lymphoma (BCL, TCL), natural killer cell lymphoma (NKL) and acute myeloid leukemia (AML) are aggressive diseases which may express the early T cell development molecule CD7.T-ALL represents 15% of childhood and 25% of adult ALL, and T-ALL patients are prone to early disease relapse and suffer from poor treatment outcomes. According to European Group for the Immunological Characterization of Leukemias (EGIL), the presence of cytoplasmic or membrane expression of CD3 defines T-ALL. Several immunophenotypic classifications have been proposed: (TI) the immature subgroup or pro-T-ALL is defined by the expression of CD7 and cCD3; (TII) pre-T-ALL also expresses CD2 and/or CD5 and/or CD8; (TIII) or cortical T-ALL shows CD1a positivity; and (TIV), mature T-ALL is characterized by the presence of surface CD3 and CD1a negativity.Over the past few years, T cells modified with lentiviral chimeric antigen receptor (CAR) gene have been studied in different clinical settings. CD7 is a T cell surface molecule that plays important role in T cell and B cell interaction in early lymphoid development, displays membrane expression early during T cell development before TCR rearrangement, and persists through terminal stages of T cell development, and has been a well-known marker for T-ALL. CD7 is considered a promising target for the treatment of T-ALL, TCL, AML and NKL. In this study, the study proposes to investigate an universal CD7 targeting CAR-T design, 4SCAR7U in combination with alternative targeting CAR-T cells as a new strategy to treat CD7-positive hematological malignancies.

The 4SCAR7U T cells are genetically engineered and manufactured in bulk amount that can be supplied off-the-shelf without being custom made from individual patients. The immediate availability of the CAR-T cells makes clinical treatment convenient and timely for rapid progressing disease or for highly immune suppressed patients. This application can be time- and cost-effective. This novel approach may also overcome problems of functionally defective autologous T cells. The purpose of this clinical trial is to assess the feasibility, safety and efficacy of the 4SCAR7U T cell product in hematological malignancies. Another goal of the study is to learn more about the function of this novel product and its persistence in the patients.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Safety and Efficacy of Universal 4SCAR7U T Cell Therapy Targeting CD7-positive Hematological Malignancies
Estimated Study Start Date : October 31, 2023
Estimated Primary Completion Date : September 30, 2026
Estimated Study Completion Date : December 31, 2026

Arm Intervention/treatment
Experimental: Universal 4SCAR7U cells to treat CD7-positive hematological malignancies Biological: Universal CD7-specific CAR gene-engineered T cells
Infusion of 4SCAR7U T cells

Primary Outcome Measures :
  1. Safety of infusion [ Time Frame: 6 months ]
    Treatment-related adverse events are assessed by NCI CTCAE V4.0 criteria.

Secondary Outcome Measures :
  1. Clinical response [ Time Frame: 1 year ]
    Objective responses (complete response (CR) + partial response (PR)) are assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   6 Months to 75 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age older than 6 months.
  2. Confirmed expression of CD7 and additional surface antigens in the cancer cells by immuno-histochemical staining or flow cytometry.
  3. Karnofsky performance status (KPS) score is higher than 80 and life expectancy > 3 months.
  4. Adequate bone marrow, liver and renal function as assessed by the following laboratory requirements: cardiac ejection fraction ≥ 50%, oxygen saturation ≥ 90%, creatinine ≤ 2.5 × upper limit of normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3 × upper limit of normal, total bilirubin ≤ 2.0mg/dL.
  5. Hgb≥80g/L.
  6. No cell separation contraindications.
  7. Abilities to understand and the willingness to provide written informed consent.

Exclusion Criteria:

  1. Sever illness or medical condition, which would not permit the patient to be managed according to the protocol, including active uncontrolled infection.
  2. Active bacterial, fungal or viral infection not controlled by adequate treatment.
  3. Known HIV or hepatitis C virus (HCV) infection.
  4. Pregnant or nursing women may not participate.
  5. Use of glucocorticoid for systemic therapy within one week prior to entering the trial.
  6. Previous treatment with any gene therapy products.
  7. Patients, in the opinion of investigators, may not be able to comply with the study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT05995028

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Contact: Lung-Ji Chang, Ph.D 86-136 7112 1909
Contact: Ying Deng 86-0755-8672 5195

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China, Guangdong
Shenzhen Geno-immune Medical Institute Recruiting
Shenzhen, Guangdong, China, 518000
Contact: Lung-Ji Chang, Ph.D    86-0755-8672 5195   
Sponsors and Collaborators
Shenzhen Geno-Immune Medical Institute
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Responsible Party: Shenzhen Geno-Immune Medical Institute Identifier: NCT05995028    
Other Study ID Numbers: GIMI-IRB-23002
First Posted: August 16, 2023    Key Record Dates
Last Update Posted: October 12, 2023
Last Verified: October 2023
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Shenzhen Geno-Immune Medical Institute:
NK lymphoma
Universal CAR T
Additional relevant MeSH terms:
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Precursor Cell Lymphoblastic Leukemia-Lymphoma
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Hematologic Diseases
Leukemia, Lymphoid