This is a Phase 1b/2, open-label, multi-center study evaluating the therapeutic potential and safety of the investigational drug EVER001 in adults with FSGS, MCD, or IgAN. EVER001 acts on multiple immune pathways without directly affecting T cells or depleting B cells (both are lymphocytes). The study will be conducted at \~30 centers in China, enrolling 45 participants aged 18-75 years (15 per indication). The IMP is a 100 mg oral capsule, dosed at 200 mg twice daily (2 capsules per dose, 4 daily) for 52 weeks.
Primary FSGS or MCD/IgAN confirmed by renal biopsy
eGFR ≥ 45 mL/min/1.73 m²
For participants with FSGS or MCD: must have a 24-hour urine protein-to-creatinine ratio (UPCR) > 3.5 g/g and serum albumin < 30 g/L during the screening period
For participants in the IgAN group: 24-hour UPCR ≥ 0.8 g/g; ARB or ACEI stable for ≥ 12 weeks prior to Day 1
Hereditary or secondary FSGS/MCD; collapsing FSGS
BMI ≥ 35 kg/m² in participants with FSGS/MCD
Evidence of diabetes mellitus or a history of diabetes mellitus
Acute or chronic infection requiring treatment