Phase 1/2 Study of UCART22 for Relapsed or Refractory B-cell Acute Lymphoblastic Leukemia

This study is testing a new treatment called UCART22 for people aged 15 to 50 with B-cell Acute Lymphoblastic Leukemia (B-ALL) that has come back or hasn't responded to previous treatments. UCART22 is a type of cell therapy where your own immune cells are specially modified to fight cancer. You would receive UCART22 after a short course of other medicines (CLLS52) to prepare your body. To join, your B-ALL cells must have a specific marker called CD22, and you must have already tried at least two types of chemotherapy. The main goals are to see how safe UCART22 is, find the best dose, and check if it helps treat the leukemia. This is the first time UCART22 is being tested in humans, and it is currently enrolling participants.

Study design
This is a first-in-human, open-label study, meaning both you and the study team will know which treatment you are receiving. It involves increasing doses to find the safest and most effective amount of UCART22, with a planned enrollment of 52 participants.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Your safety and side effects will be monitored for up to 24 months after treatment. Dose-limiting toxicities will be assessed up to 28 days after your first UCART22 infusion.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04150497

Phase 1/2 Study of UCART22 in Patients With Relapsed or Refractory CD22+ B-cell Acute Lymphoblastic Leukemia (BALLI-01)

Recruiting
PHASE1Ages 15–50InterventionalTreatment
Cellectis S.A.
~52 participants
Updated 2025-09-09 on ClinicalTrials.gov
What's tested:UCART22CLLS52

At a glance

Recruiting sites
18 of 19 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Incidence of AE/SAE/DLT [Safety and Tolerability]
Measured over 24 Months
+1 more outcome measured
B-cell Acute Lymphoblastic Leukemia

NCT04150497

Where you'd take part

This study runs at 19 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Children's Hospital of Philadelphia

    Philadelphia, Pennsylvaniano site contact published

    Recruiting

  • CHU de Nantes - Hôtel-Dieu

    Nantes, Franceno site contact published

    Recruiting

  • CHU Rennes - Hopital Pontchaillou

    Rennes, Franceno site contact published

    Recruiting

  • Dana Farber Cancer Institute

    Boston, Massachusettsno site contact published

    Recruiting

  • Hôpital Lyon Sud

    Pierre-Bénite, Franceno site contact published

    Recruiting

  • Hôpital Robert Debré - Service d'hémato-immunologie

    Paris, Franceno site contact published

    Recruiting

  • Hôpital Saint Louis, Unité d'Hématologie Adolescents et Jeunes Adultes Département d'Hématologie

    Paris, Franceno site contact published

    Recruiting

  • MD Anderson Cancer Center

    Houston, Texasno site contact published

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Nitin Jain, MD · PRINCIPAL_INVESTIGATOR · M.D. Anderson Cancer Center

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Eligibility criteria

Inclusion

B-ALL blast cells expressing CD22
Diagnosed with R/R B-ALL
Prior therapy must include at least one standard chemotherapy regimen and at least one salvage regimen

Exclusion

Prior cellular therapy or investigational cellular or gene therapy within 90 days prior to enrollment
  • Incidence of AE/SAE/DLT [Safety and Tolerability]24 Months

    Incidence, nature, and severity of adverse events and serious adverse events (SAEs) throughout the study in relation to UCART22 and/or lymphodepletion

  • Dose escalation part: Occurrence of Dose Limiting Toxicities (DLTs)Up to D28 post initial UCART22 infusion