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Anti-CRLF2-R/TSLPR Chimeric Antigen Receptor T Cells (TSLPR-CART) in Participants With Recurrent or Refractory CRLF2-R/TSLPR-Overexpressing B-Cell Acute Lymphoblastic Leukemia (B-ALL)

NCT07572136 · Status: NOT_YET_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 57

Last updated 2026-05-22

No results posted yet for this study

Summary

Background:

B-cell acute lymphoblastic leukemia (B-ALL) is a type of blood cancer. Some people with B-ALL have a gene mutation that makes the disease hard to treat. The mutation causes cancer cells to make too much of a protein called thymic stromal lymphopoietin receptor (TSLPR). Chimeric antigen receptor (CAR) T cell therapy is a treatment that takes immune cells (T cells) from a person s body and modifies them to attack specific proteins. Researchers want to test this treatment (TSLPR-CART) to find and kill cancer cells that produce too much TSLPR.

Objective:

To test TSLPR-CART in people with B-ALL.

Eligibility:

People aged 18 years and older with B-ALL that did not respond or returned after treatment. They must have TSLPR on their B-ALL.

Design:

Participants will be screened. They will have imaging scans and tests of their heart function. Samples will be taken from their bone marrow. They will have a lumbar puncture: A needle will be inserted into their back to collect a sample of the fluid around the spinal cord.

Participants will undergo leukapheresis: Blood will be taken from their body through a tube. The blood will pass through a machine that separates out the T cells. The remaining blood will be returned to the body through a different tube. The T cells will be used to create TSLPR-CART.

Participants will take drugs over 5 days to prepare their body for the therapy; then they will receive the modified cells through a tube inserted into a vein. Staying in the hospital during part of the treatment is expected and participants will be monitored locally to evaluate for side effects. Approximately 1 month after receiving TSLPR-CART, participants will undergo evaluations to see how the TSLPR-CART impacted their leukemia. Participants will have follow-up visits for 2 years either at NIH or at home....

Conditions

Interventions

DRUG

Fludarabine

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes on days -5 through -2. To prevent undue toxicity the dose will be based on BSA (30 mg/m\^2/dose).

BIOLOGICAL

TSLPR-CART

TSLPR CAR transduced T cells on D0 after lymphodepleting preparative regimen

DRUG

Cyclophosphamide

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 500 mg/m\^2/dose after fludarabine infusion on days -3 and -2.

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    lead NIH

Principal Investigators

  • Nirali N Shah, M.D. · National Cancer Institute (NCI)

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
120 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-27
Primary Completion
2030-06-30
Completion
2032-06-30
FDA Drug
Yes

Countries

  • United States

Study Locations

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Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07572136 on ClinicalTrials.gov