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CD19 CAR-T Expressing IL7 and CCL19 Combined With PD1 mAb for Relapsed or Refractory Diffuse Large B Cell Lymphoma

NCT04381741 · Status: UNKNOWN · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2023-02-06

No results posted yet for this study

Summary

Diffuse large B-cell lymphoma (DLBCL) is the most common non-Hodgkin's lymphoma, accounting for 35% of lymphoma. Chimeric antigen receptor T cell (CAR-T) therapy is a new method to treat DLBCL. KTE-C19, published in the New England Medical Journal in December 2017, was used to treat relapsed and refractory B-cell lymphoma. One year of treatment for 111 patients, the total response rate was 82%, and the complete remission rate was 54%. However, a large number of clinical studies have shown that about 20% of patients with B-ALL and 50% of patients with B-NHL cannot achieve complete remission (CR) after CD19-CAR-T treatment. Targeting tumor microenvironment is an important new method to overcome the drug resistance of CAR-T cells. In this study, IL-7 and CCL19 were connected on the basis of traditional second generation CD19 CAR-T cells to construct novel fourth generation CAR-T cells, which can promote the infiltration, accumulation and survival of CAR-T cells in lymphoma tissue, and further enhance the anti-tumor effect of traditional CAR-T cells. At the same time, combined with four generations of CAR-T cells and PD1 monoclonal antibody, PD1 / PDL1 signal pathway was blocked, anti-tumor effect of CAR-T was improved, and immune response and long-term remission rate of DLBCL were improved.

Conditions

  • Diffuse Large B-cell Lymphoma

Interventions

BIOLOGICAL

CD19-7×19 CAR-T plus PD1 monoclonal antibody

Three different doses of CD19-7×19 CAR-T (1×106/kg、2×106/kg、3×106/kg) plus 200mg Tislelizumab every 3 weeks for 6 times

Sponsors & Collaborators

  • Second Affiliated Hospital, School of Medicine, Zhejiang University

    lead OTHER

Principal Investigators

  • Wenbin Qian, MD, PhD · 2nd Affiliated Hospital, School of Medicine, Zhejiang University, China

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

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

Timeline & Regulatory

Start
2020-06-18
Primary Completion
2023-09-01
Completion
2023-09-01

Countries

  • China

Study Locations

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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 NCT04381741 on ClinicalTrials.gov