Early Application of Budesonide Enteric-coated Capsules in the Treatment of Primary IgA Nephropathy.
This multicenter, open-label, prospective single-arm study will enroll adults (≥18 y) with primary IgA nephropathy confirmed by renal biopsy within 2 weeks, eGFR ≥20 ml/min/1.73 m² and 0.5-3.5 g/d proteinuria, to receive early (real-world) combination therapy with RASI (titrated irbesartan), SGLT2i (dapagliflozin 10 mg qd) and budesonide enteric-coated capsules (16 mg qd) for 9 months, followed by budesonide taper-off and continuation of RASI+SGLT2i for 3 more months (12 months total), with primary endpoint being change in proteinuria from baseline to month 12 and secondary endpoints changes in eGFR and microscopic hematuria.
• (1) Age ≥ 18 years (2) Primary IgA nephropathy confirmed by renal-biopsy pathology within the past 2 weeks (3) eGFR ≥ 20 mL/min/1.73 m² (4) 24-hour urinary protein 0.5-3.5 g/day (5) Patient has been fully informed, agrees to receive supportive care plus budesonide enteric-coated capsules, and has signed the informed-consent form