Study of CM313 in Subject With IgA Nephropathy

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-75
SponsorKeymed Biosciences Co.Ltd

About this trial

This study is divided into two parts (Part A and Part B). This study aims to evaluate the safety and efficacy of CM313 in subjects with primary Immunoglobulin A nephropathy(IgAN), while also observing its Pharmacokinetics(PK) characteristics, Pharmacokinetics(PD) effects, and immunogenicity.

Eligibility criteria

Qualifiers

Able to comprehend the research study and voluntarily signing the informed consent form (ICF).

Renal biopsy report supporting diagnosis of primary IgAN within 8 years prior to the screening visit.

Estimated Glomerular Filtration Rate (eGFR) (using the Chronic Kidney Disease Epidemiology Collaboration formula) ≥ 30 mL/min/1.73 (m*m) at screening and baseline.

Prior to the baseline visit, all subjects must have received standard care treatment, including good blood pressure control and a stable treatment of a maximum recommended or maximum tolerated dose of angiotensin-converting enzyme inhibitors(ACEI) or Angiotensin receptor blocker(ARB) for at least 12 weeks.

Disqualifiers

Secondary IgAN judged by the investigator: Secondary IgAN may be associated with Henoch-Schonlein purpura, hepatic cirrhosis, coeliac disease, human immunodeficiency virus (HIV) infection, dermatitis herpetiformis, seronegative arthritis, small cell carcinoma, lymphoma, disseminated tuberculosis, obliterative bronchiolitis, inflammatory bowel disease, familial Mediterranean fever, etc.

Known allergy to monoclonal antibody drugs or to the excipients of CM313.

Presence of rapidly progressive glomerulonephritis (RPGN), defined as 50% decline in eGFR within 3 months prior to randomization and/or crescent formation in more than 50% of glomeruli in a renal pathological specimen.

Confirmed acute kidney injury (AKI) within 4 weeks prior to randomization.

Trial design

Treatments tested in this trial

  • CM313
  • Placebo

Treatment groups

106 Participants
are divided into 8 treatment groups

8

Treatment groups

See each treatment group below.

Sponsors and collaborators