The Randomized Controlled Study of Shenqi Yishen Granules in the Treatment of IgA Nephropathy

The goal of this clinical trial is to learn if Shenqi Yishen Granules works to treat IgA Nephropathy in adults. It will also learn about the safety of Shenqi Yishen Granules. The main questions it aims to answer are: Does Shenqi Yishen Granules lower 24-hour urinary protein quantification of participants? What medical problems do participants have when taking Shenqi Yishen Granules? Researchers will compare Shenqi Yishen Granules to a placebo (a look-alike substance that contains no drug) to see if Shenqi Yishen Granules works to treat IgA Nephropathy.