A Study of CM336 in Patients With Relapsed or Refractory Autoimmune Cytopenia

NCT ID: NCT07175493

Last Updated: 2025-12-17

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/PHASE2

Total Enrollment

158 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-11-18

Study Completion Date

2028-11-18

Brief Summary

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To evaluate the efficacy and safety of CM336 (BCMA/CD3 Bispecific Antibody) in the treatment of patients with relapsed or refractory autoimmune cytopenia

Detailed Description

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Conditions

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Autoimmune Cytopenia Immune Thrombocytopenia (ITP) Autoimmune Hemolytic Anemia Evans Syndrome

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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CM336 injection

Group Type EXPERIMENTAL

CM336 Injection

Intervention Type BIOLOGICAL

subcutaneous CM336 administration, step-up dosing, Dose and frequency of CM336 according to the protocol

Interventions

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CM336 Injection

subcutaneous CM336 administration, step-up dosing, Dose and frequency of CM336 according to the protocol

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Voluntary provision of written informed consent and ability to comply with protocol requirements.
* Age ≥18 years, male or female.
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 2.
* Confirmed diagnosis of immune thrombocytopenia (ITP), warm autoimmune hemolytic anemia (wAIHA), cold agglutinin disease (CAD), mixed autoimmune hemolytic anemia (mAIHA) or Evans Syndrome.
* Relapsed or refractory autoimmune hemolytic anemia.

Exclusion Criteria

* Secondary ITP or AIHA caused by any reason. Subjects with positive autoimmune antibodies but without a clear diagnosis of any other autoimmune diseases are allowed to be enrolled.
* Other types of AIHA or other types of cytopenia
* History of critical diseases that, in the opinion of the investigator, may pose a risk to the safety of subjects or whose exacerbation during the study could compromise the efficacy or safety analysis of the results.
* Received any treatment of anti-B Cell Maturation Antigen(BCMA) antibody.
* Evaluated unsuitable to participant in this study by investigator.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Keymed Biosciences Co.Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Henan Cancer Hospital

Zhengzhou, Henan, China

Site Status RECRUITING

Heping Hospital Affiliated to Changzhi Medical College

Changzhi, Shanxi, China

Site Status RECRUITING

Blood Disease Hospital, Chinese Academy of Medical Sciences

Tianjin, Tianjin Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Qian Jia

Role: CONTACT

86+028-88610620

Facility Contacts

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Hu Zhou Henan Cancer Hospital

Role: primary

028-88610620

Xuliang Shen Heping Hospital Affiliated to Changzhi Medical College

Role: primary

028-88610620

Lei Zhang

Role: primary

86+022-23608025

Jun Shi

Role: backup

86+022-23608025

Other Identifiers

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CM336-125101

Identifier Type: -

Identifier Source: org_study_id