NCT07498673

A Study of YKST02 in Participants With Primary IgA Nephropathy

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of YKST02 in Participants With Primary IgA Nephropathy

• Status: Not Yet Recruiting
• Phase: EARLY_Phase 1
• Study type: Interventional
• Enrollment: 12 (estimated)
• Sponsor: Union Hospital, Tongji Medical College, Huazhong University of Science and Technology · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

The goal of this clinical trial is to evaluate the safety and tolerability of YKST02 and to explore its potential to treat adults with primary IgA nephropathy (IgAN). The study will also assess how the drug moves through the body and how it affects the immune system. The main questions it aims to answer are: * Is YKST02 safe and well tolerated? * Does YKST02 reduce protein levels in the urine? * How does YKST02 behave in the body (pharmacokinetics, PK)? * How does YKST02 affect the immune system (pharmacodynamics, PD)? Participants are adults with IgAN who have persistent proteinuria despite standard treatment. Participants will: * Receive YKST02 by intravenous (IV) infusion * Be monitored after each dose for safety * Attend clinic visits for safety assessments and laboratory tests * Provide blood and urine samples during the study and follow-up period

Detailed description

This is a single-center, open-label, dose-escalation clinical trial designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), immunogenicity, and preliminary efficacy of YKST02 in adults with primary IgA nephropathy (IgAN). Eligible participants are adults with IgAN and persistent proteinuria despite standard-of-care treatment. The study consists of a screening period, a treatment period, and a follow-up period. During the treatment period, YKST02 will be administered by intravenous infusion. Dose levels and dosing schedules may be adjusted based on safety, tolerability, and emerging data to support dose escalation and determination of an appropriate dose level. Safety assessments will include monitoring of adverse events, clinical laboratory evaluations, vital signs, and other relevant clinical parameters. Pharmacokinetic evaluations will characterize the concentration-time profile of YKST02. Pharmacodynamic and biomarker assessments will evaluate the biological activity of YKST02 and its effects on immune-related pathways. Immunogenicity will be assessed by evaluating anti-drug antibodies. Preliminary efficacy will be explored using clinical measures relevant to IgAN. Additional exploratory analyses may be performed to further characterize immune-related biomarkers and potential effects on renal pathology, as applicable.

Conditions

• Primary IgA Nephropathy

Interventions

Type	Name	Description
DRUG	YKST02	YKST02 is an investigational drug administered by intravenous infusion. It is provided as a sterile formulation for clinical use. Dosing may vary based on study design and ongoing evaluation of safety, tolerability, and pharmacokinetic/pharmacodynamic (PK/PD) data.

Timeline

• Start date: 2026-03-31
• Primary completion: 2027-03-30
• Completion: 2027-06-30
• First posted: 2026-03-27
• Last updated: 2026-03-27

Locations

1 site across 1 country: China