Clinical Study of CD7 CAR-T Cells for Relapsed/refractory Autoimmune Diseases

CD7CAR-T Cell Therapy As a Single-Arm, Open-Label, Single-Center Investigator-Initiated Early-Stage Clinical Study

The primary objective was to evaluate the safety of CD7 CAR-T cells for the treatment of subjects with relapsed/refractory AID. CD7 CAR-T cells were infused in a single infusion in subjects who were screened after signing an informed consent form and undergoing single nucleus cell collection and pretreatment, and blood was collected before and after the infusion for pharmacokinetic, pharmacodynamic, immunogenicity, and safety evaluations.

Study Overview

Detailed Description

Subjects who meet the inclusion/exclusion criteria will be entered into 3 groups in sequential order for a single dose. The dose-escalation study utilizes a "3+3" design, i.e., 3-6 subjects in each group will complete a single dose.

After the last subject in each dose group completes a dose-limiting toxicity (DLT) assessment window of 28 days after the single dose, enrollment in the next dose group can begin.

When 1 DLT occurs in 3 subjects in a dose group, 3 additional subjects are required in the same dose group (up to 6 subjects in that dose group have completed DLT assessment): if no DLT occurs in the 3 additional subjects, continue the dose escalation; if 1 of the 3 additional subjects develops a DLT, stop the dose escalation; if >1 of the 3 additional subjects DLT occurs, the dose escalation is stopped and a one-dose reduction is required to continue enrolling 3 more subjects for DLT assessment.

Study Type

Interventional

Enrollment (Estimated)

18

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Anhui
      • Hefei, Anhui, China, 230088
        • PersonGen.Anke Cellular Therapeutice Co. Ltd
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

- Diagnosed relapsing/refractory systemic sclerosis that has failed treatment with at least two immunosuppressive and/or biologic agents.

Bone marrow and coagulation function, liver and kidney function, cardiopulmonary function are satisfied No serious mental disorders

Exclusion Criteria:

- Malignancy other than AID disease within 5 years prior to screening Hepatitis B surface antigen (HBsAg) positive, AIDS, syphilis and other virus positive persons Severe heart disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: T cell injection targeting CD7 chimeric antigen receptor
CD7 CAR-T cell therapy Subjects meeting the inclusion/exclusion criteria will be entered into the 0.25×108, 1×108, and 2×108 CAR-T groups in sequential order, and will be administered once
Subjects who sign the informed consent form and meet the inclusion/exclusion criteria will be entered into the 0.25×108, 1×108 and 2×108 CAR-T groups, in order of priority, and will be administered 1 dose of

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
adverse events
Time Frame: About 1 year
Number of participants with treatment-related adverse events as assessed by CTCAE v5.0
About 1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
(Cmax)
Time Frame: About 1 year
Maximum concentration of CD7 CAR-T cells expanded in peripheral blood after drug administration
About 1 year
(Tmax)
Time Frame: About 1 year
Time to maximum concentration
About 1 year
AUC0-28d
Time Frame: About 28 days
Area under the curve at 28 days
About 28 days
AUC0-90d
Time Frame: About 90 days
Area under the curve at 90 days
About 90 days
Disease remission rate
Time Frame: About 90 days
Rate of decline from baseline in the American College of Rheumatology Composite Response Index (ACR-CRISS)
About 90 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: zhu chen, doctor, The First Hospital Affiliated to the University of Science and Technology of China

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

March 18, 2025

Primary Completion (Estimated)

March 31, 2026

Study Completion (Estimated)

March 31, 2027

Study Registration Dates

First Submitted

February 27, 2025

First Submitted That Met QC Criteria

March 11, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 11, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • PG-007-8

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Research details

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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