Idorsia Pharmaceuticals US. Inc, an affiliate of Swiss-based pharmaceutical firm Idorsia, announced on Thursday that it has named Tausif (Tosh) Butt as its new president and general manager, effective 5 September 2023.

Butt is to succeed Patty Torr who is leaving the company to pursue other opportunities.

Butt has over 20 years of pharmaceutical leadership experience. He has served as executive vice president and chief operating officer of ChemoCentryx, Inc., senior vice president of Latin America for AstraZeneca, and served in various marketing and sales leadership roles in the United States, United Kingdom and France with GlaxoSmithKline and Sanofi.