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RecruitingObservational

Prospective Evaluation Of Delayed Effects Of Pediatric Car T Cell Therapy (PROSPER)

NCT ID: NCT06579469Sponsor: St. Jude Children's Research HospitalLast updated: 2026-06-18

Summary

This study is being done to learn more about the short-term and long-term side effects of CAR-T cell therapy. Specifically, researchers want to know how often patients get infections, have delays in recovering blood cell counts and/or have damage to the nervous system.

Detailed description

Primary Objectives * Bone Marrow Function: To report on the incidence, timing, severity of, and risk factors for bone marrow dysfunction in participants in remission or without bone marrow involvement of disease at 3- and 6-months following CAR T cell therapy. (B-ALL cohort) * Infection/Immune Reconstitution: To evaluate the incidence, timing, severity of and risk factors for clinically significant infections following CAR T cell therapy at 3- and 6-months following CAR T cell therapy. (B-ALL cohort) * Neurotoxicity: To evaluate the incidence, timing, severity of, and risk factors for persistent ICANS at 3- and 6-months post CAR T cell therapy. (B-ALL cohort) Secondary Objectives * To evaluate bone marrow function, infection/immune reconstitution, and neurotoxicity at 12 months and 24 months post CAR T cell therapy in participants with B-ALL. * To characterize bone marrow function, infection/immune reconstitution, and neurotoxicity between 3 and 24 months after CAR T cell therapy in other hematologic malignancies and solid tumor cohorts. Participants will have an assessment of preexisting morbidity and potential risk factors, collection of specimens for banking, scheduled late effects monitoring, laboratory analysis, and screening studies. Data and biospecimens will be collected at 3 months, 6 months, 1 year and 2 years after CAR T cell infusion.

Arms & interventions

Outcome measures

Primary

  • Presence of bone marrow dysfunction (BMD)

    Among patients in remission or without bone marrow involvement of disease in the B-ALL cohort, we will summarize the rates of prevalent BMD at 3- and 6-months post-infusion and estimate the cumulative incidence of new BMD and BMD recovery for patients with prevalent BMD at 3- and 6-months.

    Time frame: Within 6 months post CAR T-cell therapy

  • Occurrence of clinically significant infections

    The infection density of clinically significant infections in 3-6 months will be summarized in the B-ALL cohort.

    Time frame: Within 6 months post CAR T-cell therapy

  • Presence of persistent ICANS

    We will summarize the rates of persistent ICANS at 3- and 6-months post-infusion and estimate the cumulative incidence and timing of new ICANS and ICANS recovery for patients with persistent ICANS at 3- and 6-months in the B-ALL cohort.

    Time frame: Within 6 months post CAR T-cell therapy

Secondary

  • Presence of bone marrow dysfunction (BMD)

    Time frame: Within 24 months post CAR T-cell therapy

  • Severity of BMD

    Time frame: Within 24 months post CAR T-cell therapy

  • Occurrence of clinically significant infections

    Time frame: Within 24 months post CAR T-cell therapy

  • Time to the earliest clinically significant infection

    Time frame: Within 24 months post CAR T-cell therapy

  • Severity of clinically significant infections

    Time frame: Within 24 months post CAR T-cell therapy

  • Presence of persistent ICANS

    Time frame: Within 24 months post CAR T-cell therapy

  • Severity of persistent ICANS

    Time frame: Within 24 months post CAR T-cell therapy

Eligibility criteria

Sex: AllAge: Up to 30 YearsHealthy volunteers: No
Inclusion Criteria: * Participants must have received an initial systemically-administered CAR T cell infusion within the last 1-3 months (+/- 14 days). * Initial infusion is defined as the first administration of a CAR T cell product the participant has not previously received OR receipt of a CAR T cell product previously received after an interval allogeneic HSCT. * Age ≤ 30 years at CAR T cell infusion. Exclusion Criteria: * Active malignancy other than the disease under study. * Planned consolidative HSCT within 3 months post CAR T cell infusion. * Received or planned additional disease directed therapy post CAR T cell infusion. * Inability or unwillingness of research participant or legal guardian/representative to give written informed consent.

Study locations (6)

Childrens Hospital of Colorado

Aurora, Colorado, 80045

Recruiting
Hesham Eissa, MD, MSc · Contact
Hesham Eissa, MD, MSc · Principal Investigator

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, 19104

Recruiting
Regina Myers, MD · Contact
Regina Myers, MD · Principal Investigator

St. Jude Children's Research Hospital

Memphis, Tennessee, 38105

Recruiting
Rebecca Epperly, MD · Contact
Rebecca Epperly, MD · Principal Investigator

Primary Children's Hospital

Salt Lake City, Utah, 84113

Recruiting
Joseph G. Dolan, MD · Contact
Joseph G Dolan, MD · Principal Investigator

Seattle Childrens Hospital

Seattle, Washington, 98105

Recruiting
Mallory Taylor, MD · Principal Investigator

Children's Hospital of Wisconsin.

Milwaukee, Wisconsin, 53226

Recruiting
Amy Moskop, MD · Contact
Amy Moskop, MD · Principal Investigator
Prospective Evaluation Of Delayed Effects Of Pediatric Car T Cell Therapy | Cancerify