Just in the last 1 year, we have two new drugs being approved for IgA Nephropathy. In addition, we have seen an emergence in using SGLT2i perhaps in IgAN and other GNs. The DAPA-CKD trial IgAN patients were evaluated and the use of dapagliflozin was superior than placebo. The EMPA-Kidney had close to 800 IgAN patients, we shall await those results soon.
MMF has just made a come back with a recent Chinese study showing some promise in a RCT.
Finally, a targeted release steroid called budesonide has been FDA approved. This was developed to deliver the active drug in the distal ileum, where the Peyer's patches are -- the likely culprit where a large amount of galactose deficient IgA is made. The data was just published in KI.
And finally, the first single molecule Dual Endothelin Angiotensin Receptor Antagonist (DEARA) approved for use in patients with IgAN. The data is not published yet in a journal.
There are still ongoing trials of other DEARAs, and complement inhibitors, APRIL inhibitors for IgAN. In my opinion, the future of treatment of IgAN can be perhaps summarized in the below figure: ( created using biorender.com)
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