Fig. 2From: Early onset of effect following galcanezumab treatment in patients with previous preventive medication failuresLS mean change from baseline in number of weekly migraine headache days. ** p < 0.01, *** p ≤ 0.0001 vs placebo. LS least-squares. SE standard error. Dotted line separates month 1, which was used in the onset analysis, from remaining monthsBack to article page