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Allogenic CD19-targeting CAR-γδT Cell Therapy in R/R NHL

NCT05554939 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2025-08-06

No results posted yet for this study

Summary

This is a single center, prospective, open-label, single-arm, phase 1/2 study for patients with r/r B-cell NHL to evaluate the safety and efficacy of gene edited allogenic CD19 CAR-γδT cells. The cells are from healthy adult volunteer donors that are gene edited ex vivo using CRISPR-Cas9 to weaken HLA expression and further to overcome host immune system rejection (HvGR). In this study, a second generation anti-CD19 CAR prototype was constructed, bearing murine FMC63 single-chain variant fragment (scFv) together with intracellular 4-1BB co-stimulatory and CD3ζ signaling domains linked by a CD8α sequence comprising the hinge and transmembrane domains.

A total of around 30 patients with r/r B-cell NHL will be enrolled in the study and receive allogeneic CD19 CAR-γδT cell infusion. Phase 1 (n=9 to 12) is dose escalation part, and phase 2 (n=15 to 20) is expansion cohort part. The primary objective of this study was to evaluate the safety and efficacy of allogeneic CD19 CAR-γδT cell therapy in patients with r/r B-cell NHL.

Conditions

  • Non Hodgkin's Lymphoma

Interventions

BIOLOGICAL

Allogenic CD19 CAR-γδT cell

Phase 1 dose escalation (3+3) : dose 1 (6 × 10\^6 cells/kg) , dose 2 (1.2 × 10\^7 cells/kg), dose 3 (1.8 × 10\^7 cells/kg); Phase 2 : dose of RP2D.

DRUG

Fludarabine

Intravenous fludarabine 30\~50 mg/m\^2/day on days -5, -4, and -3.

DRUG

Cyclophosphamide

Intravenous cyclophosphamide 500\~1000 mg/m\^2/day on days -5, -4, and -3.

Sponsors & Collaborators

  • Chinese PLA General Hospital

    lead OTHER

Principal Investigators

  • Weidong Han, Ph.D · Biotherapeutic Department, Chinese PLA General Hospital

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

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

Timeline & Regulatory

Start
2022-12-11
Primary Completion
2026-12-31
Completion
2027-12-31

Countries

  • China

Study Locations

More Related Trials

Entities

Drugs

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 NCT05554939 on ClinicalTrials.gov