A Phase I Trial of A-CAR032 in Participants With mCRPC

NCT ID: NCT07344311

Last Updated: 2026-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

27 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-31

Study Completion Date

2042-01-31

Brief Summary

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This FTiH, single-arm, open-label, investigator-initiated Phase I trial will evaluate the safety, antitumour activity, CK/pharmacodynamics (PD), biomarkers, immunogenicity, and feasibility of A-CAR032 in adult participants with mCRPC, who have previously progressed after ARPI treatment of prostate cancer (whether before or in the metastatic castration-resistant setting) and, in the judgment of the investigator, are ineligible for standard treatment.

Detailed Description

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The study consists of two parts: Part 1-Dose Escalation and Part 2-Dose Expansion. Participants in the study will proceed through screening, apheresis, bridging therapy (if appropriate), lymphodepletion, CAR-T cell infusion, and subsequent follow-up (including Stage 1, 2 and 3).

Conditions

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Prostate Cancer Metastatic Castration-Resistant Prostate Cancer

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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A-CAR032

Part 1 will follow an i3+3 design which is employed to explore the maximum tolerated dose (MTD) and/or the recommended dose for expansion (RDE). Three dose levels of A-CAR032are initially planned with a minimum of 3 and maximum of 9 participants per dose level. The safety review committee (SRC) may suggest exploration of intermediate dose levels or additional higher or lower dose levels based on the available data, but will not exceed 3 times the current dose or 3 times the highest dose that has been determined safe by the SRC.Part 2 at the RDE of A-CAR032 will be initiated, if data support, to further evaluate the safety, CK, efficacy and potential biological activity of study intervention. Approximately 12 evaluable participants will be enrolled in Part 2.

Group Type EXPERIMENTAL

dnTGFβRII-armoured STEAP2-targeted autologous CAR T-Cell Injection

Intervention Type BIOLOGICAL

dnTGFβRII-armoured STEAP2-targeted autologous CAR T-Cell Injection.single infusion intravenously.

Interventions

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dnTGFβRII-armoured STEAP2-targeted autologous CAR T-Cell Injection

dnTGFβRII-armoured STEAP2-targeted autologous CAR T-Cell Injection.single infusion intravenously.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Participant must be 18 years or older at the time of signing the ICF. Type of Participant and Disease Characteristics
2. Participants with:

1. A histologically confirmed diagnosis of metastatic adenocarcinoma of the prostate without known neuroendocrine differentiation or small cell features.
2. Castration-resistant prostate cancer as defined by disease progression despite castration by orchiectomy or ongoing luteinising hormone-releasing hormone analogue. Participants receiving medical castration therapy with gonadotropin-releasing hormone analogues should continue this treatment during the study.
3. Measurable PSA≥1 ng/mL AND
4. Evidence of progression within 6 months prior to screening
3. Participant has previously received an ARPI (ie, abiraterone, enzalutamide, apalutamide, darolutamide, rezvilutamide) whether before or in the metastatic castration-resistant setting, and in the judgment of the investigator, be ineligible for standard treatment.
4. Minimum life expectancy of \> 12 weeks prior to apheresis in the opinion of the investigator.
5. Adequate organ and marrow function
6. Consent and provision of tumour material to assess STEAP2 expression and other correlative biomarkers retrospectively with pre- and post-treatment biopsies.
7. Contraceptive use should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
8. The participant voluntarily participates in the study, and the individual or their legal guardian signs the ICF.

Exclusion Criteria

1. Known life-threatening allergies, hypersensitivity, or intolerance to the CAR-T product or its excipients, including dimethyl sulfoxide (DMSO).
2. Contraindication to lymphodepleting agents, including fludarabine and/or cyclophosphamide.
3. History of another primary malignancy except for:

1. Malignancy treated with curative intent and with no known active disease within 3 years before the apheresis and of low potential risk for recurrence.
2. Adequately treated non-melanoma skin cancer or lentigo malignancy without evidence of disease.
3. Adequately treated carcinoma in situ without evidence of disease.
4. Participants with known brain metastases.
5. History of splenectomy or organ transplantation.
6. Prior treatment with:

1. Any CAR-T therapy. OR
2. Any therapy that is targeting STEAP2.
7. Active or prior documented autoimmune or inflammatory disorders
8. Cardiac arrhythmias which are symptomatic or require treatment unless controlled by pacemaker (judged by investigator); symptomatic or uncontrolled atrial fibrillation despite treatment, or asymptomatic sustained ventricular tachycardia.
9. Active infection, including:

1. HBV infection is defined as hepatitis B surface antigen (HBsAg) positive, or hepatitis B core antibody (HBcAb) positive and HBV DNA detectable.
2. HCV infection is defined as HCV antibody positive and HCV RNA positive.
3. CMV infection is defined as CMV DNA detectable.
4. Syphilis infection is defined as syphilis antigen and antibody positive.
5. HIV infection is defined as HIV 1/2 antibody positive.
6. Other persistent or active infections requiring systemic treatment (prophylactic use of anti-infective drugs is allowed).
10. Patients with central nervous system (CNS) diseases:
11. Obvious risk or tendency of bleeding or active bleeding (eg, clinically significant hemoptysis, tumour bleeding, history of von Willebrand disease or hemophilia etc.).
12. Plans to father a child during the study period.
13. Patients with alcohol or drug abuse.
14. Participants may not receive full-dose long acting oral or parenteral anticoagulants or thrombolytic agents for therapeutic (as opposed to prophylactic) purpose from the time of informed consent to 28 days post infusion of A-CAR032. Use of short acting direct oral anticoagulants for therapeutic and prophylactic purposes are permitted.
15. Received the following:

1. Major surgery within 4 weeks prior to apheresis or existence of unhealed wound, or planned major surgery within 4 weeks of the study treatment administration
2. Steroids (except inhaled steroids) or other immunomodulators (including interleukins, interferons, and thymosins) of systemic therapeutic dose, and systemic corticosteroids at doses exceeding 10 mg/day of prednisone or equivalent within 5 half-lives or 7 days (whichever is shorter) prior to apheresis.
16. Receipt of the last dose of anticancer therapy (chemotherapy, immunotherapy, endocrine therapy targeted therapy, biologic therapy, tumour embolisation, or monoclonal antibodies, investigational product) within 5 half-lives or ≤ 21 days (whichever is shorter) prior to apheresis.
17. Radiotherapy within 4 weeks of apheresis (However, if the radiation portal covered ≤ 5% of the bone marrow reserve, the participant is eligible irrespective of the end date of radiotherapy); or within 6 months or 5 half-lives (whichever is longer) if local radioactive particle implantation was performed.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Shanghai AbelZeta Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Beijing Cancer Hospital

Beijing, Beijing Municipality, China

Site Status NOT_YET_RECRUITING

Tongji Hospital, Tongji Medical College of HUST

Wuhan, Hubei, China

Site Status NOT_YET_RECRUITING

The Affiliated Hospital of Xuzhou Medical University

Xuzhou, Jiangsu, China

Site Status NOT_YET_RECRUITING

The First Affiliated Hospital, Zhejiang University School of Medicine

Hangzhou, Zhejiang, China

Site Status RECRUITING

The First Affiliated Hospital of Wenzhou Medical University

Wenzhou, Zhejiang, China

Site Status NOT_YET_RECRUITING

Countries

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China

Central Contacts

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Weijia Pang

Role: CONTACT

+86-21-54069990

Nicole Shen

Role: CONTACT

+86-21-54069993

Facility Contacts

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Xi-Nan Sheng

Role: primary

+86-10-88121122

Bo Liu

Role: primary

+86-27-83663298

Zhengxiang Han

Role: primary

+86-516-85802000

Weijia Fang

Role: primary

+86-571-87236666

Wenfeng Li

Role: primary

+86-577-55578100

Other Identifiers

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1332-046

Identifier Type: -

Identifier Source: org_study_id

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