{"title":"Fremanezumab for migraine in clinical practice: a systematic review and meta-analysis.","authors":"Jaime Fernández-Bravo-Rodrigo, Carlos Pascual-Morena, Alicia Saz-Lara, Irene Martínez-García, Carla Geovanna Lever-Megina, Silvana Patiño-Cardona, Amparo Flor-García, Iván Cavero-Redondo","doi":"10.1080/14737175.2026.2687476","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Although the efficacy of fremanezumab in treating migraine has been proven in randomized controlled trials, its effectiveness is not well understood. Consequently, this study purpose was to synthesize and estimate its real-world effectiveness and safety in patients with migraine.</p><p><strong>Methods: </strong>A systematic search of PubMed, Scopus and Web of Science was conducted from inception to November2025. Real-world studies evaluating fremanezumab effectiveness, measured by monthly migraine days (MMDs), monthly headache days (MHDs), Headache Impact Test (HIT-6) and related outcomes, including safety, were included. Random-effects meta-analyses were performed.</p><p><strong>Results: </strong>One month after treatment initiation, fremanezumab reduced MMD by -5.82 days (95% CI: -6.67, -4.97), MHD by -7.30 days (95% CI: -9.72, -4.87) and HIT-6 scores by -6.84 points (95% CI: -10.30, -3.39). Approximately 50% of patients achieved a ≥ 50% reduction in MMD or MHD within 3 months, with response rates increasing progressively up to 12 months. Adverse event rates were 0.05 (95% CI: 0.02, 0.09) in 6 months and 0.07 (95% CI: 0.03, 0.12) in 12 months, with constipation being the most frequently reported event.</p><p><strong>Conclusion: </strong>Fremanezumab is associated with clinically significant reductions in migraine frequency, disability and acute medication used in real-world settings, with a favorable safety profile.</p><p><strong>Prospero: </strong>CRD42021266322.</p>","PeriodicalId":12190,"journal":{"name":"Expert Review of Neurotherapeutics","volume":" ","pages":"687-699"},"PeriodicalIF":4.3000,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Expert Review of Neurotherapeutics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/14737175.2026.2687476","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/6/14 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Although the efficacy of fremanezumab in treating migraine has been proven in randomized controlled trials, its effectiveness is not well understood. Consequently, this study purpose was to synthesize and estimate its real-world effectiveness and safety in patients with migraine.
Methods: A systematic search of PubMed, Scopus and Web of Science was conducted from inception to November2025. Real-world studies evaluating fremanezumab effectiveness, measured by monthly migraine days (MMDs), monthly headache days (MHDs), Headache Impact Test (HIT-6) and related outcomes, including safety, were included. Random-effects meta-analyses were performed.
Results: One month after treatment initiation, fremanezumab reduced MMD by -5.82 days (95% CI: -6.67, -4.97), MHD by -7.30 days (95% CI: -9.72, -4.87) and HIT-6 scores by -6.84 points (95% CI: -10.30, -3.39). Approximately 50% of patients achieved a ≥ 50% reduction in MMD or MHD within 3 months, with response rates increasing progressively up to 12 months. Adverse event rates were 0.05 (95% CI: 0.02, 0.09) in 6 months and 0.07 (95% CI: 0.03, 0.12) in 12 months, with constipation being the most frequently reported event.
Conclusion: Fremanezumab is associated with clinically significant reductions in migraine frequency, disability and acute medication used in real-world settings, with a favorable safety profile.
期刊介绍:
Expert Review of Neurotherapeutics (ISSN 1473-7175) provides expert reviews on the use of drugs and medicines in clinical neurology and neuropsychiatry. Coverage includes disease management, new medicines and drugs in neurology, therapeutic indications, diagnostics, medical treatment guidelines and neurological diseases such as stroke, epilepsy, Alzheimer''s and Parkinson''s.
Comprehensive coverage in each review is complemented by the unique Expert Review format and includes the following sections:
Expert Opinion - a personal view of the data presented in the article, a discussion on the developments that are likely to be important in the future, and the avenues of research likely to become exciting as further studies yield more detailed results
Article Highlights – an executive summary of the author’s most critical points