Novo Nordisk announced the successful completion and headline results of the phase 3a trials PIONEER 4 comparing oral semaglutide as a treatment for adults with type 2 diabetes to Victoza (1.8 mg liraglutide) and placebo, and PIONEER 7 comparing oral semaglutide as a treatment for adults with type 2 diabetes to sitagliptin 100 mg. Oral semaglutide is a…