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Study of CM313(SC) Injection in Subjects With Platelet Transfusion Refractoriness

A Phase IB/II Clinical Study to Assess the Safety and Preliminary Efficacy of CM313(SC) Injection in Subjects With Platelet Transfusion Refractoriness

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06792019
Enrollment
110
Registered
2025-01-24
Start date
2025-03-25
Completion date
2027-11-16
Last updated
2025-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Platelet Transfusion Refractoriness

Brief summary

This is a randomized, open-label, phase IB/II clinical study to evaluate the safety and preliminary efficacy of CM313(SC) injection in patients with Platelet Transfusion Refractoriness.

Interventions

BIOLOGICALCM313(SC) injection-low dose

Phase IB:CM313(SC) administered at low dose according to the protocol. Phase II:CM313(SC) administered at different doses based on Phase IB's results.

BIOLOGICALCM313(SC) injection-high dose

Phase IB:CM313(SC) administered at high dose according to the protocol. Phase II:CM313(SC) administered at different doses based on Phase IB's results.

Sponsors

Keymed Biosciences Co.Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Thrombocytopenia dependent on platelet transfusions and diagnosed with platelet transfusion refractoriness. 2. Presence of one or more kinds of antiplatelet antibodies. 3. Male or female, age≥18 years. 4. The Eastern Cooperative Oncology Group (ECOG) physical status score ≤2. 5. Willing and able to comply with the requirements for this study and written informed consent.

Exclusion criteria

1. Diagnosed with Idiopathic thrombocytopenic purpura. 2. Platelet transfusion refractoriness caused by non-immune factors. 3. Previously treated with the anti-CD38 monoclonal antibody. 4. Have an allergy to humanized monoclonal antibody or any part of CM313. 5. Pregnant or breastfeeding females, or females planning to become pregnant during the study. 6. Any condition considered to be ineligible for the study by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Adverse events (AE)Up to 24 weeksAssess the safety of CM313(SC) injection

Countries

China

Contacts

Primary ContactQian Jia
qianjia@keymedbio.com028-88610620

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026