• PeresMario F PMFP0000-0002-0068-1905Neurology, Hospital Israelita Albert Einstein, São Paulo, Brazil.Instituto de Psiquiatria, Hospital das Clínicas da Faculdade de Medicina, São Paulo, Brazil., Raghavendra Vasudeva, Simin K Baygani, Ellen B Dennehy, Maurice Vincent, and Deborah I Friedman.
• Neurology, Hospital Israelita Albert Einstein, São Paulo, Brazil.
• Curr Med Res Opin. 2021 Jun 1; 37 (6): 1031-1038.

ObjectiveTo evaluate the efficacy of lasmiditan (LTN) in treating migraine attacks of mild vs. moderate or severe pain intensity.MethodsPooled data from two single-attack, placebo-controlled studies (SAMURAI [NCT02439320] and SPARTAN [NCT02605174]), and a prospective, randomized, open-label study (GLADIATOR [NCT02565186]) were assessed. Efficacy measures included the proportion of attacks with 2-h pain freedom (PF), 2-h most bothersome symptom (MBS) freedom, and 24-h sustained pain freedom (SPF). Fisher's exact test was used to compare the proportion of PF, SPF, or MBS freedom outcomes among attacks treated at mild, moderate, or severe pain.ResultsIn SAMURAI and SPARTAN, most treated attacks were of moderate (N = 2768) or severe (N = 1147) intensity, compared to mild (N = 65). Numerically greater 2-h PF and 24-h SPF response rates were observed in attacks treated at mild compared to moderate or severe pain. Analysis of GLADIATOR data included 273 (1.5%), 11,644 (65.1%), and 5948 (33.3%) attacks treated when pain was mild, moderate, and severe, respectively. In general, a significantly greater proportion of attacks treated at mild pain achieved 2-h PF and MBS freedom, as well as 24-h SPF. The incidence of treatment-emergent adverse events in LTN treatment groups were similar regardless of baseline head pain intensity.ConclusionsData from two placebo-controlled, single-attack trials, and an open-label study including treatment of multiple attacks, suggested a tendency to relatively better efficacy outcomes when LTN treatment was initiated at mild vs. moderate to severe pain. Further research is needed to better understand the relationship of lasmiditan outcomes to the time of administration in the course of a migraine attack.

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