Diabetic nephropathy (DN) is a leading cause of end-stage kidney disease worldwide and is associated with a high risk of cardiovascular events and mortality. Despite current standard therapies including renin-angiotensin system inhibitors (ACEI/ARB), glycemic control, and blood pressure management, disease progression remains inadequately controlled in many patients. Naoxintong Capsule is a traditional Chinese medicine formulation composed of 16 herbal ingredients (Astragalus membranaceus, Prunus persica seed, Carthamus tinctorius, Paeonia lactiflora, Angelica sinensis, Ligusticum chuanxiong, Boswellia carterii, Commiphora myrrha, Salvia miltiorrhiza, Achyranthes bidentata, Cinnamomum cassia, Morus alba, Spatholobus suberectus, Buthus martensii, Pheretima aspergillum, and Hirudo nipponica). It has been widely used in China for cardiovascular and cerebrovascular diseases, with demonstrated effects on endothelial protection, anti-inflammation, anti-thrombosis, and plaque stabilization. This multicenter, randomized, double-blind, placebo-controlled trial aims to evaluate the efficacy and safety of Naoxintong Capsule added to standard conventional therapy in slowing the progression of diabetic nephropathy and providing cardiovascular protection. A total of 410 patients with Type 2 diabetic nephropathy will be randomized (1:1) to receive either Naoxintong Capsules (4 capsules, 3 times daily) or matching placebo, in addition to standard therapy, for 12 months. The primary outcome is the annual rate of decline in estimated glomerular filtration rate (eGFR). Secondary outcomes include changes in proteinuria, CKD stage progression, time to end-stage kidney disease, major adverse cardiovascular events, TCM syndrome scores, and quality of life measures.
Age range
18 Years
Sex
ALL
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Annual Rate of Decline in Estimated Glomerular Filtration Rate (eGFR)
Timeframe: Baseline to Month 12
Change in 24-Hour Urinary Protein Excretion From Baseline
Timeframe: Baseline to Month 12
Renal Composite Endpoint: eGFR Decline >30%, ESKD, or MACE
Timeframe: From randomization through Month 12