Clinical trial Recruiting at 3 sites Observational Ages Any age to 25

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

Official title: Determining the Mechanisms of Loss of CAR T Cell Persistence

Run by University College, London · NCT05809284 · Data updated 2026-11-12

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
AgesAny age to 25 Years
SexAll
Enrollment50 (estimated)
SponsorUniversity College, London
Academic / other
Drugs / interventionsCAR-T, CAR T, chimeric antigen receptor
Locations3 sites (London and 2 other locations)
StatusRecruiting
StartedOctober 18, 2023
Main results expectedJuly 1, 2027
Study endsJuly 1, 2027
Registry record updatedAugust 7, 2026
Trial IDNCT05809284 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a 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.

Probably not a fit

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

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

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.

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 gone: 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.

Who can join: the full rules

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 it's running

  • Great Ormond Street Hospital
    London, United Kingdom
    Recruiting
  • University College London Hospital
    London, United Kingdom
    Recruiting
  • Royal Manchester Children's Hospital
    Manchester, United Kingdom
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.