RecruitingPhase 2NCT07039578

Study Evaluating the Efficacy and Safety of CM336 Injection in the Treatment of Light-Chain Amyloidosis

An Open-Label, Multi-Center, Phase II Clinical Study Evaluating the Efficacy and Safety of CM336 Injection in the Treatment of Relapsed or Refractory Primary Light-Chain Amyloidosis


Sponsor

Keymed Biosciences Co.Ltd

Enrollment

90 participants

Start Date

Jul 25, 2025

Study Type

INTERVENTIONAL

Conditions

Summary

to Evaluate the Efficacy and Safety of CM336 (BCMA/CD3 Bispecific Antibody) in Adults with Relapsed or Refractory Primary Light-Chain Amyloidosis


Eligibility

Min Age: 18 Years

Inclusion Criteria8

  • Voluntary provision of written informed consent and ability to comply with protocol requirements.
  • Age ≥18 years, any gender.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 2.
  • Confirmed diagnosis of primary light-chain (AL) amyloidosis.
  • Relapsed or refractory primary AL amyloidosis.
  • Measurable hematologic disease at screening (per protocol-defined criteria).
  • Involvement of ≥1 amyloid-affected organ.
  • Adequate organ function meeting all protocol-specified criteria within 3 days prior to first dose.

Exclusion Criteria5

  • Current or prior diagnosis of multiple myeloma.
  • Received anti-AL amyloidosis therapy within protocol-specified timeframe prior to first dose.
  • Clinically significant cardiovascular or cerebrovascular disease.
  • Any active or uncontrolled infection meeting protocol-defined criteria.
  • Any other condition deemed by the Investigator to preclude safe study participation.

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Interventions

BIOLOGICALCM336 Injection(Low dose group)

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

BIOLOGICALCM336 Injection(High dose group)

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


Locations(2)

Peking Union Medical College Hospital

Beijing, Beijing Municipality, China

Institute of Hematology & Blood Diseases Hospital

Tianjin, Tianjin Municipality, China

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NCT07039578