Onset of action (T OA ) was similar (79 ± 27 min for Toujeo®, 60 ± 21 min for Tresiba®, P = 0.3) but the end of action (T EA ) and duration of action (T DUR = T EA -T OA ) were longer for Toujeo® vs. Tresiba® (T DUR = 828 ± 130 min vs. 620 ± 148 min, respectively, P = 0.04; T EA = 907 ± 135 min vs. 679 ± 127 min, respectively, P = 0.03).