NGS-MRD Assessment of Combination Immunotherapies Targeting B-ALL
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ClinicalTrials.gov Identifier: NCT05262673 |
Recruitment Status :
Recruiting
First Posted : March 2, 2022
Last Update Posted : March 8, 2022
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Tracking Information | |||||
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First Submitted Date ICMJE | February 21, 2022 | ||||
First Posted Date ICMJE | March 2, 2022 | ||||
Last Update Posted Date | March 8, 2022 | ||||
Estimated Study Start Date ICMJE | March 1, 2022 | ||||
Estimated Primary Completion Date | December 31, 2024 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
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Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | |||||
Current Secondary Outcome Measures ICMJE | Not Provided | ||||
Original Secondary Outcome Measures ICMJE | Not Provided | ||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | NGS-MRD Assessment of Combination Immunotherapies Targeting B-ALL | ||||
Official Title ICMJE | NGS-MRD Evaluation of Antigen-specific T Cells and DC Vaccine Combination Targeting B-cell Acute Lymphoblastic Leukemia | ||||
Brief Summary | The purpose of this study is to determine the feasibility, safety, and efficacy of a combination therapy in the treatment of B-cell acute lymphoblastic leukemia (B-ALL) based on multi-antigen-targeted chimeric antigen receptor T cells (CAR-T) followed by engineered immune effector cytotoxic T lymphocytes (CTLs) and immune-modified dendritic cell vaccine (DCvac). This approach is aimed to achieve NGS MRD negative in B-ALL patients, which can identify a very low risk of relapse and define patients with possible long-term remission without further treatment. | ||||
Detailed Description | Minimal residual disease (MRD) monitoring is currently performed in B-ALL patients to evaluate treatment response and define risk stratification. Patients with good prognosis have undetectable MRD levels after treatment, while persistent MRD defines high relapse-risk patients. A standardized flow cytometry assay detects MRD reliably in bone marrow or peripheral blood at levels ≥0.01% mononuclear cells. More sensitive MRD assay detecting specific immunoglobulin heavy (IgH) chain rearrangement by next-generation sequencing (NGS) can approach reliably detectable blast level at ≤10-6 cells. Given the high sensitivity, the NGS-MRD approach improves distinction between deeply negative and very low positive cases. Recent studies also demonstrate that NGS-MRD assessment of the bone marrow with undetectable blast cells is a strong predictive factor, indicating patients with possible long-term response after CAR-T cell therapy. In the past decade, adoptively transferred T cells modified with chimeric antigen receptors (CARs) have demonstrated high effectiveness and changed the treatment paradigm for B-ALL. More than 80% B-ALL patients achieved complete remission due to CAR-T treatment, but some patients with CR still have MRD that ultimately leads to relapse, which indicates the importance for further combination therapy to enhance anti-tumor immunity and to eradicate all malignant cells. Therefore, this protocol includes multi-target CAR-T cell infusions followed by cytotoxic T lymphocyte (CTL)-based immunotherapy, which react with B-ALL tumor antigens, and then followed by injection of immune-modified dendritic cells fused with leukemic cells (DCvac). In addition to the significant success of CAR-T cell therapy, various clinical studies also reported the importance and potential benefits of using engineered tumor-specific T cells in different types of cancer. Moreover, DC-based vaccine as another agent of immunotherapy has proven to prevent or delay relapse in leukemia patients achieving remission. In this study, we propose to combine those strategies to augment anti-tumor immunity in patients and expect undetectable NGS-MRD remission to prevent disease recurrence. We propose a novel protocol which combines multiple CAR-T cell therapy, engineered immune effector CTLs and DCvac against B-ALL. The aim of this study is to evaluate the feasibility, safety, and efficacy of the NGS-MRD analysis-based combinational immunotherapy. |
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Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Phase 1 | ||||
Study Design ICMJE | Allocation: N/A Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Treatment |
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Condition ICMJE | B-Cell Acute Lymphoblastic Leukemia | ||||
Intervention ICMJE | Biological: Antigen-specific T cells CART/CTL and DCvac
Antigen-specific T cells CAR-T/CTL and DCvac cells to treat B-ALL
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Study Arms ICMJE | Experimental: CART/CTL/DCvac cells to treat B-ALL
Intervention: Biological: Antigen-specific T cells CART/CTL and DCvac
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Publications * | Not Provided | ||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Recruiting | ||||
Estimated Enrollment ICMJE |
10 | ||||
Original Estimated Enrollment ICMJE | Same as current | ||||
Estimated Study Completion Date ICMJE | December 31, 2025 | ||||
Estimated Primary Completion Date | December 31, 2024 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 6 Months to 65 Years (Child, Adult, Older Adult) | ||||
Accepts Healthy Volunteers ICMJE | No | ||||
Contacts ICMJE |
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Listed Location Countries ICMJE | China | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT05262673 | ||||
Other Study ID Numbers ICMJE | GIMI-IRB-22001 | ||||
Has Data Monitoring Committee | No | ||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE | Not Provided | ||||
Current Responsible Party | Shenzhen Geno-Immune Medical Institute | ||||
Original Responsible Party | Same as current | ||||
Current Study Sponsor ICMJE | Shenzhen Geno-Immune Medical Institute | ||||
Original Study Sponsor ICMJE | Same as current | ||||
Collaborators ICMJE | Not Provided | ||||
Investigators ICMJE | Not Provided | ||||
PRS Account | Shenzhen Geno-Immune Medical Institute | ||||
Verification Date | March 2022 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |