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MRD-positivePhase 1NCT03919526

Anti-CD19/CD22 Bispecific Chimeric Antigen Receptor(CAR)-T Cell Therapy for Measurable Residual Disease(MRD) Positive ALL

A Phase 1 study testing anti-CD19/CD22 CAR-T cells, Fludarabine and Cyclophosphamide in people with MRD-positive and Acute Lymphoblastic Leukemia, run by Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To evaluate the safety and efficacy of CD19/CD22 Bispecific chimeric antigen receptor (CAR)-T for the treatment of measurable residual disaese (MRD)-positive B cell acute lymphoblastic leukemia. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
MRD-positive, Acute Lymphoblastic Leukemia
What is being tested?
anti-CD19/CD22 CAR-T cells, Fludarabine and Cyclophosphamide
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
1 siteChina
Study dates
11 Aug 2019to 1 Nov 2023
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • (1) CD19 positive/CD22 positive, or CD19-CD22 positive B-cell acute lymphoblastic leukemia;
  • (2)18 to 70 Years Old, Male and female;
  • (3) Expected survival > 12 weeks;
  • (4) ECOG score 0-2;
  • (5) Bone marrow examination clearly diagnosed as B-cell acute lymphoblastic leukemia and who met one of the following conditions:
  • Recurrent patients who achieves MRD-positive CR or CRi after standard therapy;
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  • Those who achieves CR, but failed to achieve MRD-negative after at least 2 courses of consolidation therapy;
  • For Ph-positive ALL patients, a history of at least one TKI application is required in addition to two standard chemotherapy treatments
  • (6) The venous access required for collection can be established and mononuclear cell collection can be determined by the investigators;
  • (7) Liver, kidney and cardiopulmonary functions meet the following requirements:
  • Creatinine is in the normal range;
  • Left ventricular ejection fraction >50%;
  • Baseline oxygen saturation>92%;
  • Total bilirubin ≤ 2×ULN;
  • ALT and AST ≤ 2.5×ULN;
  • (8) Able to understand and sign the Informed Consent Document.

Who cannot join

  • (1) Malignant tumors other than acute lymphoblastic leukemia within 5 years prior to screening, in addition to adequately treated cervical carcinoma in situ, basal cell or squamous cell skin cancer, localized prostate cancer after radical resection, and ductal carcinoma in situ after radical resection;
  • (2) Subjects with positive HBsAg or HBcAb and peripheral blood HBV DNA titer detection ≥ 1 × 102 copy number / L; HCV antibody positive and peripheral blood HCV RNA positive; HIV antibody positive; CMV DNA positive; syphilis positive;
  • (3) Any instability of systemic disease, including but not limited to unstable angina, cerebrovascular accident, or transient cerebral ischemic (within 6 months prior to screening), myocardial infarction (within 6 months prior to screening), congestive heart failure (New York heart association (NYHA) classification ≥ III), need drug therapy of severe arrhythmia, liver, kidney, or metabolic disease;
  • (4) Active or uncontrollable infection requiring systemic therapy within 14 days prior to enrollment;
  • (5) Pregnant or lactating woman, and female subject who plans to have a pregnancy within 1 year after cell transfusion, or male subject whose partner plans to have a pregnancy within 1 year after cell transfusion;
  • (6) Received CAR-T treatment or other gene therapies before enrollment;
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  • (7) Patients with symptoms of central nervous system;
  • (8) Subjects who are receiving systemic steroid treatment and requiring long-term systemic steroid treatment during the treatment as determined by the investigator before screening (except inhalation or topical use); And subjects treated with systemic steroids (except inhalation or topical use) within 72h prior to cell transfusion;
  • (9) The investigators consider other conditions unsuitable for enrollment.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Shanghai General Hospital

    Shanghai, Shanghai Municipality, 200080

Other trials in China

About this study

Official title: The Safety and Clinical Efficacy of Human CD19/CD22 Bispecific Chimeric Antigen Receptor (CAR)-T Cell Therapy for Subjects With Measurable Residual Disease(MRD)-Positive B Cell Acute Lymphoblastic Leukemia

To evaluate the safety and efficacy of CD19/CD22 Bispecific chimeric antigen receptor (CAR)-T for the treatment of measurable residual disaese (MRD)-positive B cell acute lymphoblastic leukemia. Patients will be given a conditioning chemotherapy regimen of fludarabine and cyclophosphamide followed by a single infusion of CD19/CD22 CAR+ T cells.

Read the detailed description

Participants with MRD-positive B cell acute lymphoblastic leukemia can participate if all eligibility criteria are met. Tests required to determine eligibility include disease assessments, a physical exam, Electrocardiograph, CT/MRI , and blood draws. Participants receive chemotherapy prior to the infusion of CD19/CD22 CAR+ T cells. After the infusion, participants will be followed for side effects and effect of CD19/CD22 CAR+ T cells. Study procedures may be performed while hospitalized.

Being tested
anti-CD19/CD22 CAR-T cells, Fludarabine, Cyclophosphamide
Keywords
CD19/CD22, Bispecific CAR-T, leukemia, MRD-positive, B-ALL
Medical subject headings
Precursor Cell Lymphoblastic Leukemia-Lymphoma, Leukemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • anti-CD19/CD22 CAR-T cellsBiological

    Retroviral vector-transduced autologous T cells to express anti-CD19 and anti-CD22 CARs

  • FludarabineDrug

    30mg/m2/d

  • CyclophosphamideDrug

    300mg/m2/d

Study groups in NCT03919526
Study groupRoleWhat they receive
anti-CD19/CD22 CAR-T cellsExperimentalAdministration with anti-CD19/ CD22 CAR-T cells in the MRD-positive ALL patients.
Receives: Biological: anti-CD19/CD22 CAR-T cells; Drug: Fludarabine; Drug: Cyclophosphamide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety measured by occurence of study related adverse effects defined by NCI CTCAE5.0

    Safety measured by occurence of study related adverse effects defined by NCI CTCAE5.0

    Measured: 28 days post infusion

Secondary outcomes (6)
  1. MRD clearance

    MRD clearance

    Measured: 3 months post infusion

  2. Content of CD19 positive B-cells in peripheral blood

    Content of CD19 positive B-cells in peripheral blood

    Measured: 3 months post infusion

  3. Content of CAR-T related cytokines positive T cells in circulation

    Content of CAR-T related cytokines positive T cells in circulation

    Measured: 3 months post infusion

  4. Total response rate (ORR) after administration

    Total response rate (ORR) after administration including complete response(CR) and partial response(PR)

    Measured: 3 months post infusion

  5. Duration of remission (DOR) after administration

    Duration of remission (DOR) after administration

    Measured: 2 years post infusion

  6. Overall Survival (OS)after administration

    Overall Survival (OS)after administration

    Measured: 2 years post infusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Apr 2019
  2. Study start11 Aug 2019
  3. Primary completion1 Nov 2023
  4. Study completion1 Nov 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03919526
Sponsor's protocol ID
SHSYXY-CAR-T MRD+ALL
Status last verified
Dec 2023
First submitted
7 Apr 2019
Last updated
8 Dec 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing anti-CD19/CD22 CAR-T cells, Fludarabine and Cyclophosphamide in people with MRD-positive and Acute Lymphoblastic Leukemia, run by Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 16 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety measured by occurence of study related adverse effects defined by NCI CTCAE5.0 (time frame: 28 days post infusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Dec 2023.

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