NCT06609928

A Phase 1 Study of FOLR1 CAR T for Pediatric Patients With FOLR1/CBFA2T3::GLIS2+ Relapsed or Refractory AML

Study Summary

This phase I trial tests the safety, side effects, and best dose of FH-FOLR1 chimeric antigen receptor (CAR) T cells in treating pediatric patients with FOLR1+ acute myeloid leukemia (AML) that has come back after a period of improvement (recurrent) or has not responded to previous treatment (refractory). CAR T-cell therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T cells are taken from a patient's blood. Then the gene for a special receptor that binds to a FOLR1 on the patient's cancer cells is added to the T cells in the laboratory. The special receptor is called a chimeric antigen receptor. Large numbers of the CAR T cells are grown in the laboratory and given to the patient by infusion for treatment of certain cancers. Chemotherapy drugs, such as fludarabine and cyclophosphamide, are given to a patient before the manufactured FH-FOLR1 CAR T cells are infused back into the patient to assist in the CAR T cell activity in the patient. The trial is evaluating if giving FH-FOLR1 CAR T cell therapy is safe and tolerable for pediatric patients with recurrent or refractory AML.

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Interventions

FOLR1 CAR T-cellsBIOLOGICAL
Given IV
Biospecimen CollectionPROCEDURE
Undergo CSF and blood sample collection
Bone Marrow AspirationPROCEDURE
Undergo bone marrow aspiration
Bone Marrow BiopsyPROCEDURE
Undergo bone marrow biopsy
CyclophosphamideDRUG
Given IV
Echocardiography TestPROCEDURE
Undergo ECHO
FludarabineDRUG
Given IV
PheresisPROCEDURE
Undergo apheresis
Positron Emission TomographyPROCEDURE
Undergo PET

Study Locations

FacilityCityStateCountry
Fred Hutch/University of Washington/Seattle Children's Cancer ConsortiumSeattleWashingtonUnited States

Official Trial Information

View on ClinicalTrials.gov

Data sourced from ClinicalTrials.gov. Last updated: April 14, 2026