🏛️ Verified NIH Record • Updated 2025-09-08

Phase 1/2 Study of UCART22 in Patients With Relapsed or Refractory CD22+ B-cell Acute Lymphoblastic Leukemia (BALLI-01) (NCT04150497)

Open Label Dose-escalation and Dose-expansion Study to Evaluate the Safety, Expansion, Persistence and Clinical Activity of UCART22 (Allogeneic Engineered T-cells Expressing Anti-CD22 Chimeric Antigen Receptor) in Patients With Relapsed or refractoryCD22+ B-cell Acute Lymphoblastic Leukemia (B-ALL)

🟢 Recruiting Phase1 / Phase2 💊 Investigational Drug / Biologic Sponsor: Cellectis S.A.

🩺 Plain-English Summary (8th-Grade Level)

This is a first-in-human, open-label, dose escalation and expansion study of UCART22 administered intravenously to patients with relapsed or refractory B-cell acute Lymphoblastic Leukemia (B-ALL). The purpose of this study is to evaluate the safety and clinical activity of UCART22 and determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D)

Who can join: Review the eligibility criteria below.

Location: University of California, Los Angeles (UCLA) - Medical Center — Los Angeles, California

Age range: 15 Years to 50 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (19 Sites)

  • University of California, Los Angeles (UCLA) - Medical Center — Los Angeles, California
  • University of Colorado - Aurora Cancer Center — Aurora, Colorado
  • Sarah Cannon - Colorado Blood Cancer Institute — Denver, Colorado
  • University of Chicago — Chicago, Illinois
  • Dana Farber Cancer Institute — Boston, Massachusetts
  • Roswell Park Comprehensive Cancer Center — Buffalo, New York
  • Memorial Sloan Kettering Cancer Center (MSKCC) David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center — New York, New York
  • Weill Medical College of Cornell University — New York, New York
  • Children's Hospital of Philadelphia — Philadelphia, Pennsylvania
  • Sarah Cannon - HCA Research Institute — Nashville, Tennessee
  • Sarah Cannon - St. David's South Austin Medical Center — Austin, Texas
  • MD Anderson Cancer Center — Houston, Texas
  • Sarah Cannon - Texas Transplant Institute at Methodist Hospital — San Antonio, Texas
  • University of Wisconsin Carbone Cancer Center — Madison, Wisconsin
  • CHU de Nantes - Hôtel-Dieu — Nantes,
  • Hôpital Saint Louis, Unité d'Hématologie Adolescents et Jeunes Adultes Département d'Hématologie — Paris,
  • Hôpital Robert Debré - Service d'hémato-immunologie — Paris,
  • Hôpital Lyon Sud — Pierre-Bénite,
  • CHU Rennes - Hopital Pontchaillou — Rennes,

📞 Contact the Study Coordinator

Phone: (347) 752-4044

Email: clinicaltrials@cellectis.com

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗