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Clinical Trials/NCT06633328
NCT06633328RecruitingEarly Phase 1

Clinical Study on the Safety and Efficacy of Donor Derived CD7 CAR-T Cell Bridging Allogeneic Hematopoietic Stem Cell Transplantation for the for Patients With Severe Aplastic Anemia

Zhejiang University1 site in 1 country30 target enrollmentStarted: October 20, 2024Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Early Phase 1
Status
Recruiting
Sponsor
Enrollment
30
Locations
1
Primary Endpoint
Dose-limiting toxicity (DLT)

Study Overview

Brief Summary

This is a single-arm, open-label, single-center, phase I study. The primary objective is to evaluate the safety of CD7 CAR-T Bridging to allo-HSCT therapy for patients with severe aplastic anemia

Detailed Description

This is a prospective, open-label, single-center clinical trial. This study will evaluate the safety and efficacy of CD7 CAR-T Bridging to allo-HSCT in the treatment of severe aplastic anemia.The primary endpoints are dose limiting toxicity (DLT) and the incidence of treatment emergent adverse event (TEAE).

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Chinese expert consensus on the diagnosis and treatment of aplastic anemia(2017), Diagnosis of severe aplastic anemia ,
  • The degree of bone marrow cell proliferation < 25%, or 25%-50% but residual hematopoietic cells < 30%;
  • With pancytopenia (at least two of the following peripheral blood parameters) : (1) absolute neutrophil <0.5×10^9/L; (2) Platelet count< 20×10^9/L; (3) The absolute value of reticulocytes <20×109/L;
  • Suitable donors (relatives) with allogeneic HSCT indications and at least haploid allogeneic transplantation;
  • Patients who are not suitable or unwilling to undergo traditional allogeneic hematopoietic stem cell transplantation;
  • creatinine clearance > 60ml/min; without liver invasion, serum total bilirubin ≤ 1.5 times the upper limit of normal, and serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were both ≤ 3 times the upper limit of the normal range. If there is liver invasion, serum erythrambirubin ≤ 3 times the upper limit of normal, and serum ALT and AST are both ≤ 5 times the upper limit of the normal range;
  • Echocardiogram shows left ventricular ejection fraction (LVEF) ≥ 50%;
  • No active infection in the lungs, blood oxygen saturation in indoor air is ≥ 92%;
  • Estimated survival time ≥ 3 months;
  • ECOG performance status 0 to 1;
  • Females and males of childbearing potential must agree to use adequate contraception prior to study entry, during study participation, and for 6 months after infusion (the safety of this therapy for unborn children is not known and has unknown risks);
  • Those who voluntarily participated in this trial and provided informed consent;

Exclusion Criteria

  • Allergy to pre-treatment measures;
  • Those with acute graft versus host disease (GvHD) or moderate to severe chronic GvHD within 4 weeks before screening; Those who have received systemic drug therapy for GvHD within 4 weeks before the reinfusion;
  • History of epilepsy or other central nervous system disorders;
  • Electrocardiogram shows prolonged QT interval, severe heart diseases such as severe arrhythmia in the past;
  • Less than 100 days after allogeneic hematopoietic stem cell transplantation;
  • Patients with HIV infection,Active infection of hepatitis B virus or hepatitis C virus,Uncured active infection;
  • The proiferation rate is less than 5 times response to CD3/CD28 co-stimulation signal;
  • Received anti-cancer chemotherapy or other drug treatment within 2 weeks prior to screening;
  • Any condition that, in the opinion of the investigator, may increase the risk to the subject or interfere with the results of the study.

Arms & Interventions

Treatment Group

Experimental

Aplastic Anemia

Intervention: CD7 CAR-T cells injection (Drug)

Treatment Group

Experimental

Aplastic Anemia

Intervention: Allogeneic hematopoietic stem cell transplantation (Other)

Outcomes

Primary Outcomes

Dose-limiting toxicity (DLT)

Time Frame: Up to 28 days after Treatment

Adverse events assessed according to NCI-CTCAE v5.0 criteria

Incidence of treatment-emergent adverse events (TEAEs)

Time Frame: Up to 2 years after Treatment

Incidence of treatment-emergent adverse events \[Safety and Tolerability\]

Secondary Outcomes

  • Allogeneic hematopoietic stem cell transplant implantation rate(Up to 100 days after Treatment)
  • Time to neutrophil and platelet engraftment(Up to 30 days after Treatment)
  • Disease-feesurvival,DFS(Up to 2 years after Treatment)
  • Overall survival, OS(Up to 2 years after Treatment)

Investigators

Sponsor
Zhejiang University
Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

He Huang

Clinical Professor

Zhejiang University

Study Sites (1)

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