NCT07109518

uCD7 CART for Relapsed or Refractory CD7 Positive Hematologic Malignancies

Universal CD7 CART (uCD7 CART) Cell Injection in the Treatment of Relapsed or Refractory CD7 Positive Hematologic Malignancies: a Prospective, Single-arm, Single-center Clinical Study.

• Status: Recruiting
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 12 (estimated)
• Sponsor: Institute of Hematology & Blood Diseases Hospital, China · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study was to evaluate the safety and efficacy of universal CD7 CART (uCD7 CART) cells in the treatment of patients with relapsed/refractory CD7-positive hematologic malignancies. In this single-arm, open-label, single-center, Phase 1 clinical trial, two cohorts were set up: (1) relapsed and refractory acute myeloid leukemia (AML) cohort; and (2) relapsed and refractory T lymphoblastic leukemia/lymphoma (T-ALL/LBL) cohort. Each cohort was planned to enroll 4-12 patients. uCD7 CART cells will be administered intravenously to explore the maximum tolerated dose (MTD) of each cohort using a 3+3 dose escalation and rapid titration design.

Detailed description

This study will use universal CD7 CAR-T cells to treat CD7-positive relapsed or refractory hematological malignancies, especially AML and T-ALL/LBL patients. Two cohorts were established: (1) relapsed and refractory AML cohort; and (2) relapsed and refractory T-ALL/LBL cohort. A 3+3 dose escalation and rapid titration design was used to explore the MTD for each cohort. 3+3 dose escalation CAR-T dose groups were (1) 0.5×10\^6 CART cells/kg; (2)1×10\^6 CART cells/kg;(3) 3×10\^6 CART cells/kg. A minimum of 4 and a maximum of 12 patients are expected to be enrolled. Fludarabine and cyclophosphamide-based preconditioning should be performed within 1 week prior to uCD7 CART infusion. uCD7 CART can be infused at D-1 if the requirement of 24 hours after completion of preconditioning is met. To evaluate the safety and efficacy of uCD7 CART cells in the treatment of patients with relapsed/refractory CD7-positive hematologic malignancies.

Conditions

• Acute Myeloid Leukemia (AML)
• T Lymphoblastic Leukemia/Lymphoma

Interventions

Type	Name	Description
BIOLOGICAL	uCD7 CART	Subjects screened to meet the requirements for uCD7 CART use will enter clinical trials. Subjects were assessed at baseline. Fludarabine (Flu) and cyclophosphamide (CTX) based preconditioning should be performed within 1 week prior to uCD7 CART infusion: Flu 30mg/m2 ×3 days; CTX 500mg/m2 ×3 days. The investigator can adjust the pretreatment regimen appropriately according to the condition of the subject, such as increasing the dose of CTX to 600mg/m2 ×3 days, increasing the application of cytarabine and etoposide. Infusion of uCD7 CART must be performed 24 hours after completion of chemotherapy preconditioning. uCD7 CART can be infused at D-1 if the requirement of 24 hours after completion of preconditioning is met.

Timeline

• Start date: 2025-06-28
• Primary completion: 2028-06-28
• Completion: 2030-06-28
• First posted: 2025-08-07
• Last updated: 2025-09-03

Locations

1 site across 1 country: China