Sanofi SA has stopped a clinical programme in autosomal dominant polycystic kidney disease after its small molecule drug venglustat failed to show a meaningful reduction in the total kidney volume growth rate. The programme was halted during the first stage of a pivotal Phase 2/3 study. Venglustat was targeting glycosphingolipids (GSL), which modulate membrane-to-protein functions and contribute to cell-to-cell communication.