Saredutant (SR-48,968) is a drug that acts as a NK<sub>2</sub> receptor antagonist. It was under development by Sanofi-Aventis as a novel antidepressant and anxiolytic and made it to phase III clinical trials. However, in May 2009, Sanofi-Aventis published its quarterly results and announced the cessation of 14 research/development projects, among which was saredutant for the treatment of major depressive disorder.