Clinical Trial of CD5-targeted CAR-NK Therapy for Relapse/Refractory T-Cell Hematologic Malignancies

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18-75
SponsorChongqing Precision Biotech Co., Ltd

About this trial

This is a clincal trial initiated by investigator to evaluate the safety and efficacy of anti-CD5 CAR-NK in the treatment of patients with relapsed/refractory T-Cell hematologic malignancies.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Refractory to ≥2 cycles of standard induction chemotherapy (failure to achieve CR).

Relapsed within 12 months after achieving CR with first-line induction therapy.

Failure to achieve CR or relapse after ≥2 lines of chemotherapy.

Relapse after hematopoietic stem cell transplantation (HSCT).

Disqualifiers

Prior CAR-NK therapy or genetically modified cell therapy.

Active CNS involvement at screening (prior CNS involvement with resolved status post-treatment is allowed).

Chemotherapy, targeted therapy, or investigational drugs within 2 weeks or 5 half-lives prior to screening.

Radiotherapy within 2 weeks prior to screening.

Trial design

Design model

Single group

Treatments tested in this trial

  • Anti-CD5 CAR NK cells

    Biological/Vaccine

    Each patient will initially receive a single infusion of CAR-NK cells on Day 0. If a suboptimal response is observed after the first infusion (assessed by Day 28) and the safety profile remains acceptable, a second infusion may be administered as a remedial dose after Day 28. CAR-NK cells need to be controlled within 70 minutes from thawing to infusion completion.

Treatment groups

15 Participants
are divided into 1 treatment group
Group A: CD5 CAR-NK cellsExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

The incidence of adverse events after CAR-NK cell infusion was assessed by CTCAE, version 5.0.

Time frame
28 dyas
2

Objective response rate (ORR)

Objective Response Rate (ORR) within 3 Months: 1. For patients with T-cell lymphoma, ORR includes complete response (CR) and partial response (PR); 2. For patients with T-cell acute lymphoblastic leukemia (T-ALL), ORR includes CR, CR with partial hematologic recovery (CRh), CR with incomplete hematologic recovery (CRi), and morphologic leukemia-free state (MLFS).

Time frame
1month, 2 months, 3 months
3

Overall survival (OS) after CAR-NK infusion

OS is defined as the time from CAR-NK cell infusion to death from any cause, reflecting the long-term survival benefit of the therapy.

Time frame
2 years
4

Duration of response (DOR) after CAR-NK infusion

DOR measures the time from the first achievement of objective response to disease progression or death, evaluating the durability of treatment efficacy in responding patients.

Time frame
2 years

Secondary outcomes

1

To obtain the cytodynamics data of CAR-NK cells in vivo【pharmacokinetics】

Cmax:The highest concentration of CAR T cells amplified in peripheral blood after reinfusion

Time frame
3months
2

To obtain the cytodynamics data of CAR-NK cells in vivo【pharmacokinetics】

Tmax:The time to reach the highest concentration of CAR-NK cells in peripheral blood after reinfusion

Time frame
3months
3

To obtain the cytodynamics data of CAR-NK cells in vivo【pharmacodynamics】

The content of free IL-6 in peripheral blood at each time point after transfusion was determined by immunohistochemical method

Time frame
3months

Other outcomes

Sponsors and contacts

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