• Jakub Jedynak, Eric Eross, Astrid Gendolla, Mallikarjuna Rettiganti, and Virginia L Stauffer.
• Eli Lilly and Company, Indianapolis, IN, 46285, USA. jjedynak@lilly.com.
• J Headache Pain. 2021 May 28; 22 (1): 48.

BackgroundPatients with episodic migraine (EM) with a higher-frequency of migraine headache days (HFEM: 8-14 migraine headache days/month) have a greater disease burden and a higher risk of progressing to chronic migraine (CM) with associated acute treatment overuse versus those with low-frequency EM (LFEM: 4-7 migraine headache days/month). In this post hoc analysis, we assessed the proportions of patients who shifted from HFEM to LFEM and to very low-frequency EM (VLFEM: 0-3 migraine headache days/month) status following treatment with galcanezumab versus placebo.MethodsEVOLVE-1 and EVOLVE-2 were double-blind, Phase 3 studies in patients with EM. Patients (18-65 years) were randomized (2:1:1) to subcutaneous monthly injections of placebo, galcanezumab 120 mg (240 mg loading dose) or 240 mg, for up to 6 months. Data were pooled and endpoints were change from baseline in number of migraine headache days/month and patients who shifted from HFEM to LFEM or VLFEM status. Impact of change in HFEM status on migraine headache days/month, quality of life and disability was also assessed.ResultsA total of 66% (1176/1773) patients from EVOLVE studies had HFEM status at baseline and were included in this analysis; placebo: 592, galcanezumab 120 mg: 294 and galcanezumab 240 mg: 290. At each month, both doses of galcanezumab resulted in a higher proportion of patients who shifted to 0-7 monthly headache days/month (VLFEM or LFEM status). Patients who shifted from HFEM at baseline to VLFEM status at Month 3, a relatively larger proportion of patients on galcanezumab 120 mg versus placebo remained at VLFEM status at Months 4-6; Months 4-5 for galcanezumab 240 mg versus placebo. Among the galcanezumab-treated patients who did-not-shift or shifted to LFEM or VLFEM status for ≥3 consecutive months until the end of the study, patients who shifted from HFEM to VLFEM status experienced the largest reduction in migraine headache days/month and the largest clinically meaningful improvements in daily functioning (MSQ-RFR) and disability (MIDAS).ConclusionsIn patients with HFEM, treatment with galcanezumab (120 mg and 240 mg) significantly reduced migraine headache days/month, maintained remission status at subsequent months until the end of the study, and improved patients' quality of life versus placebo.Trial RegistrationClinicalTrials.gov Identifier: EVOLVE-1, NCT02614183 ; EVOLVE-2, NCT02614196 .

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