Understanding why CAR T cells don't last in leukemia treatment

Determining the Mechanisms of Loss of CAR T Cell Persistence

University College, London · NCT05809284

This study looks at kids and young adults with leukemia to see why CAR T cells don't stick around long enough after treatment and what might help them last longer.

Quick facts

Study typeObservational
Enrollment50 (estimated)
AgesN/A to 25 Years
SexAll
SponsorUniversity College, London (other)
Drugs / interventionsCAR-T, CAR T, chimeric antigen receptor
Locations3 sites (London and 2 other locations)
Trial IDNCT05809284 on ClinicalTrials.gov

What this trial studies

This observational study focuses on pediatric and young adult patients with acute lymphoblastic leukemia (ALL) who are set to receive CD19-targeted CAR T-cell therapy. It aims to investigate the persistence of CAR T cells over time and identify the factors that may influence their longevity. By monitoring these patients, researchers hope to gather valuable data that can inform future treatments and improve outcomes for ALL patients.

Who should consider this trial

Good fit: Ideal candidates are children and young adults aged 25 years or younger with relapsed or refractory acute lymphoblastic leukemia who are scheduled to receive CAR T-cell treatment.

Not a fit: Patients receiving an alternate CD19-directed CAR T-cell product on a clinical trial may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved CAR T cell therapies that enhance treatment effectiveness for leukemia patients.

How similar studies have performed: While this study explores a specific aspect of CAR T cell therapy, similar studies have shown promise in understanding CAR T cell dynamics and improving treatment outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Children and young adults (age 25 years or younger) with relapsed/refractory ALL who are planned to receive licensed CD19-targeted CAR-T cell treatment (Tisagenlecleucel)
2. Written informed consent

Exclusion Criteria:

1. Patients receiving an alternate CD19-directed CAR T-cell product on a clinical trial
2. Any reason that in the opinion of the investigator, patients won't be able to adhere to the protocol

Where this trial is running

London and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Acute Lymphoblastic Leukemia With Failed Remission, Acute Lymphoblastic Leukemia Not Having Achieved Remission, Acute Lymphoblastic Leukemia, Pediatric, Acute Lymphoblastic Leukemia, Adult, Acute Lymphoblastic Leukemia, in Relapse

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.