Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of reducing the incident of disease flares in a subject in need thereof.

Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of inhibiting mesangial cell activation in a subject in need thereof.

Abstract: Provided herein are methods of reducing the incident of disease flares in a subject in need thereof.

Abstract: Provided herein are methods of treating kidney diseases in a subject in need thereof.

Abstract: Provided herein are methods of improving kidney function in a subject in need thereof.

Abstract: Provided herein are methods of treating IgA nephropathy, comprising administering a therapeutically effective amount of atrasentan, or a pharmaceutically acceptable salt thereof, to a subject in need thereof. Also provided herein are methods of decreasing renal inflammation and/or fibrosis, decreasing the occurrence of hematuria, stabilizing eGFR, decreasing the number of IgA-nephropathy associated disease flares, delaying the onset of ESRD, decreasing proteinuria, and decreasing fatigue in a subject having IgA nephropathy, comprising administering a therapeutically effective amount of atrasentan, or a pharmaceutically acceptable salt thereof, to the subject. In some embodiments, the subject has not been previously diagnosed with one or more of diabetic nephropathy, HIV/AIDS, HIV-related nephropathy, prostate cancer, or acute kidney failure.