NCT05038696 ALaCART-B: Acute Leukemia and Chimeric Antigen Receptor-T Cell Therapy for B-lymphoblastic Leukemia.

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 40 participants in total. It began in 2021-04-28 with a primary completion date of 2026-05-01.

Brief Summary

The objective of this study is to assess the safety and efficacy of a immunophenotype-adapted approach using CAR T-cells in patients with high-risk, refractory or relapsed B-lineage acute lymphoblastic leukemia (B-ALL).

Eligibility Criteria

Inclusion Criteria: * Fulfil the Diagnosis/ Disease define as: 1. Relapsed B-cell acute lymphoblastic leukaemia/ lymphoma as defined by: Bone marrow disease = or \> 0.01% by MRD as determined by flow cytometry Or CNS disease as defined as \> 5 WBCs in CSF by morphology, or flow cytometric or molecular evidence of blasts or biopsy proven recurrence in the eye or brain. Or Extramedullary relapse as defined by morphological evidence of blasts in the testis or any other extramedullary sites 2. Induction failure as defined by Day 33/ End of induction: MRD ≥ 1% by flow cytometry on the Ma-Spore ALL 2020 protocol Or Failure to achieve morphological remission defined as \> 5% blasts after standard induction chemotherapy 3. Refractory disease as defined by: MRD ≥ 0.01% by flow cytometry or molecular methods during 2 or more timepoints after induction therapy 4. Any high risk features including : BCR-ABL1, BCR-ABL1-like, - ABL1-r, PDGFRB-r, TCF3-HLF, MLL-r, hypodiploid ALL (\< 45 chromosomes), p53 pathogenic mutation as defined by RNA Seq or other molecular methods. 5. Patients who are unable to tolerate standard chemotherapy due to significant toxicity as well as other comorbidities * Minimum level of pulmonary reserve defined as grade ≤ 1 dyspnoea and oxygen saturation of \> 95% on room air * Left ventricular systolic function ≥ 28% confirmed by echocardiogram, or left ventricular ejection fraction ≥ 45% confirmed by echocardiogram within 3 months of screening * Karnofsky (age ≥ 16 years) or Lansky (age \< 16 years) performance status ≥ 50 at screening * Normal Age-adjusted eGFR Creatinine Clearance within 3 months of screening * Alanine aminotransferase ≤ 5 times the upper limit of normal for age * Patients with \> 99.9% of CD19 expression on blast cells will be eligible for anti-CD19 CAR T-cell infusion. * Patients with partial or absent CD19 expression (\< 99.9%) on blast cells will be eligible to receive combinations of other CAR T-cells depending on the pattern of antigen expression. Exclusion Criteria: * Failure to meet any of the inclusion criteria. * Patients who test positive on urine pregnancy testing and are pregnant or are lactating * Concomitant genetic syndromes associated with BM failure states, such as Fanconi anaemia, Kostmann syndrome, Schwachman syndrome, or any other BM failure syndrome with the exception of Down syndrome * Prior malignancy, except carcinoma in situ of the skin or cervix treated with curative intent and no evidence of active disease * Active or latent hepatitis B or active hepatitis C within 8 weeks of screening, or any uncontrolled infection at screening * Positive HIV test within 8 weeks of screening * Grade 2 to 4 acute graft-vs-host disease (GVHD) or extensive chronic GVHD * Received an investigational medicinal product within 30 days of screening * Persistent disease or relapse after other forms of CAR-T cell therapy.

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