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Remarks
Avosentan, also known as SPP301, R-639, and RO 67-0565, is an endothelin receptor antagonist. Avosentan ameliorates nephropathy and atherosclerosis in diabetic apolipoprotein E knockout mice. Avosentan is protective in hypertensive nephropathy at doses not causing fluid retention. Avosentan reduces albuminuria when added to standard treatment in people with type 2 diabetes and overt nephropathy but induces significant fluid overload and congestive heart failure.