MedPath

Phase I Trial of GR1803 Injection in Patients With RRMM

Not Applicable
Completed
Conditions
Multiple Myeloma (MM)
Interventions
Drug: GR1803 injection
Registration Number
NCT07102706
Lead Sponsor
Genrix (Shanghai) Biopharmaceutical Co., Ltd.
Brief Summary

All subjects will receive GR1803 injection until intolerable toxicity or investigator-assessed disease progression occurs (except in cases of disease progression due to discontinuation of the drug as a result of an adverse event) or until the subject has been administered the drug for 52 weeks or until the subject withdraws consent or until the investigator determines that the subject needs to be discontinued.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
76
Inclusion Criteria
  • ECOG score 0-2.
  • ≥18 years of age.
  • Multiple myeloma must be measurable by central laboratory assessment:

Serum monoclonal paraprotein (M-protein) level ≥0.5 g/dL or urine M-protein level ≥200 mg/24 hours; or

Light chain multiple myeloma without measurable disease in the serum or the urine:

Serum immunoglobulin free light chain (FLC) ≥10 mg/dL and abnormal serum immunoglobulin kappa lambda FLC ratio.

Exclusion Criteria
  • Prior treatment with any BCMA-targeted therapy.
  • Known active CNS involvement or exhibits clinical signs of meningeal involvement of multiple myeloma.
  • Plasma cell leukemia , Waldenström's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes), or primary amyloid light-chain amyloidosis.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
0.02ug/kg GR1803GR1803 injection-
1ug/kg GR1803GR1803 injection-
10ug/kg GR1803GR1803 injection-
30ug/kg GR1803GR1803 injection-
90ug/kg GR1803GR1803 injection-
180ug/kg GR1803GR1803 injection-
240ug/kg GR1803GR1803 injection-
300ug/kg GR1803GR1803 injection-
360ug/kg GR1803GR1803 injection-
Primary Outcome Measures
NameTimeMethod
DLT52 weeks

Dose Limited Toxicity

Secondary Outcome Measures
NameTimeMethod
ORR52 weeks

Sum of the proportions of patients with proven strict complete remission (sCR), complete remission (CR), very good partial remission (VGPR) and partial remission (PR)

Progression-free survival (PFS)52 weeks

Time from enrollment to tumor progression or death from any cause

Trial Locations

Locations (1)

The First Affiliated Hospital, Zhejiang University School of Medicine

🇨🇳

Hangzhou, Zhejiang, China

The First Affiliated Hospital, Zhejiang University School of Medicine
🇨🇳Hangzhou, Zhejiang, China

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.