• J Headache Pain · Jul 2021

    Randomized Controlled Trial

    Efficacy and safety of fremanezumab in patients with episodic and chronic migraine with documented inadequate response to 2 to 4 classes of migraine preventive medications over 6 months of treatment in the phase 3b FOCUS study.

    • Messoud Ashina, Joshua M Cohen, Maja Galic, Verena Ramirez Campos, Steve Barash, Xiaoping Ning, Yoel Kessler, Lindsay Janka, and Hans-Christoph Diener.
    • Department of Neurology, Danish Headache Center, Rigshospitalet Glostrup, University of Copenhagen, Valdemar Hansens Vej 5, DK-2600 Glostrup, Copenhagen, Denmark. ashina@dadlnet.dk.
    • J Headache Pain. 2021 Jul 10; 22 (1): 68.

    BackgroundFremanezumab, a fully humanized monoclonal antibody (IgG2Δa) selectively targets the calcitonin gene-related peptide and has proven efficacy for the preventive treatment of migraine. In this study, we evaluated the long-term efficacy, safety, and tolerability of monthly and quarterly fremanezumab.MethodsEpisodic migraine and chronic migraine patients completing the 12-week double-blind period of the FOCUS trial entered the 12-week open-label extension and received 3 monthly doses of fremanezumab (225 mg). Changes from baseline in monthly migraine days, monthly headache days of at least moderate severity, days of acute headache medication use, days with photophobia/phonophobia, days with nausea or vomiting, disability scores, and proportion of patients achieving a ≥50% or  ≥75% reduction in monthly migraine days were evaluated.ResultsOf the 807 patients who completed the 12-week double-blind treatment period and entered the open-label extension, 772 patients completed the study. In the placebo, quarterly fremanezumab, and monthly fremanezumab dosing regimens, respectively, patients had fewer average monthly migraine days (mean [standard deviation] change from baseline: - 4.7 [5.4]; - 5.1 [4.7]; - 5.5 [5.0]), monthly headache days of at least moderate severity (- 4.5 [5.0]; - 4.8 [4.5]; - 5.2 [4.9]), days per month of acute headache medication use (- 4.3 [5.2]; - 4.9 [4.6]; - 4.8 [4.9]), days with photophobia/phonophobia (- 3.1 [5.3]; - 3.4 [5.3]; - 4.0 [5.2]), and days with nausea or vomiting (- 2.3 [4.6]; - 3.1 [4.5]; - 3.0 [4.4]). During the 12-week open-label extension, 38%, 45%, and 46% of patients, respectively, achieved a ≥50% reduction and 16%, 15%, and 20%, respectively, achieved a ≥75% reduction in monthly migraine days. Disability scores were substantially improved in all 3 treatment groups. There were low rates of adverse events leading to discontinuation (<1%).ConclusionFremanezumab demonstrated sustained efficacy up to 6 months and was well tolerated in patients with episodic migraine or chronic migraine and documented inadequate response to multiple migraine preventive medication classes.Trial RegistrationClinicalTrials.gov NCT03308968 (FOCUS).© 2021. The Author(s).

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