CD123/CD33 CART: The intervention in this clinical trial involves a novel approach using CD22/123-Chimeric Antigen Receptor T (CAR T) cells combined with chemotherapy. The goal is to assess safety and efficacy in patients with specific hematologic malignancies.
Treatment Regimen:
Patients in the trial will undergo the following regimen:
Fludarabine Phosphate (Days -4 to -2): IV administration of fludarabine phosphate over 30 minutes on days -4 to -2. It's part of the preparatory regimen to enhance the body's response to CAR T-cell therapy.
Cyclophosphamide (Day -2): IV cyclophosphamide over 60 minutes on day -2.
CD33/123-Chimeric Antigen Receptor T Cells (Day 0): IV administration of investigational therapy, CD33/123-CAR T cells, over 10-20 minutes on day 0.
Additional Doses: Eligible patients responding well to the initial CD33/123 CAR-T cell infusion without unacceptable side effects and sufficient CAR T cell availability may receive 2 or 3 additional doses.
Study summary
This is an open, single-arm, clinical study to evaluate the efficacy and safety of chimeric antigen receptor T cell immunotherapy (CAR-T) targeting CD33 or CD123 or both sequentially in the treatment of Acute Myelocytic Leukemia.
Eligibility
Sex
ALL
Min age
6 Years
Max age
90 Years
Healthy volunteers
No
Inclusion Criteria:
* Subjects with acute myeloid leukemia who voluntarily signed informed consent and met the following criteria:
* Age older than 6 months.
* Confirmed expression of CLL-1, CD123 and/or CD33 in blast AML by immuno-histochemical staining or flow cytometry.
* Karnofsky performance status (KPS) score is higher than 80 and life expectancy \> 3 months.
* 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.
* Hgb≥80g/L.
* No cell separation contraindications.
* Abilities to understand and the willingness to provide written informed consent.
Exclusion Criteria:
* Severe illness or medical condition, which would not permit the patient to be managed according to the protocol, including active uncontrolled infection.
* Active bacterial, fungal or viral infection not controlled by adequate treatment.
* Known HIV, hepatitis B virus (HBV) or hepatitis C virus (HCV) infection.
* Pregnant or nursing women may not participate.
* Use of glucocorticoid for systemic therapy within one week prior to entering the trial.
* Patients, in the opinion of investigators, may not be able to comply with the study.
Primary outcome measure(s)
Incidence and severity of dose-limiting toxicities (DLTs) following chemotherapy preparative regimen and infusion of CD5/CD7 chimeric antigen receptor (CAR) T cells — 28 days Will be recorded and graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 at three dose levels until the maximum tolerated dose (MTD) is determined.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
We use cookies to analyse site traffic and improve your experience. With your consent, we may also use cookies for advertising. You can change your choice at any time on our Cookie Policy page. See also our Privacy Policy.