Observational studyThe journal of headache and pain2021
Real-world impact of fremanezumab on migraine symptoms and resource utilization in the United States.
Observational study in The journal of headache and pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 35 citations in OpenAlex.
- Effectiveness of Calcitonin Gene-Related Peptide Monoclonal Antibodies in the Prevention of Migraine: A Systematic Review and Meta-Analysis of Observational Cohort Studies.Clinical drug investigation · 2023Pooled it
- Pooled it
- European Headache Federation guideline on the use of monoclonal antibodies targeting the calcitonin gene related peptide pathway for migraine prevention - 2022 update.The journal of headache and pain · 2022Guideline
- The second interim analysis of Italian participants enrolled in the real-world, Pan-European, prospective, observational, Phase 4 PEARL study of fremanezumab effectiveness.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025Trial
- Evaluating the Complementary Nature of Randomized Controlled Trials and Real-World Evidence Using Over 5 Years of Experience with Fremanezumab: A Narrative Review.Advances in therapy · 2026Review
- Real-World Clinical Effectiveness and Migraine-Related Healthcare Resource Utilization in Patients Initiating Fremanezumab in Germany and the United Kingdom.Therapeutics and clinical risk management · 2026Article
- Prescription of Monoclonal Antibodies Against Calcitonin Gene-Related Peptide for the Prophylaxis of Migraine in Austria: A Retrospective, Longitudinal Analysis of Nationwide Insurance Data.European journal of neurology · 2025Article
- Unmasking the relationship between CGRP and glutamate: from peripheral excitation to central sensitization in migraine.The journal of headache and pain · 2025Review
- Article
- Cost Effectiveness of Fremanezumab in Episodic and Chronic Migraine Patients from a Japanese Healthcare Perspective.PharmacoEconomics · 2024Article
- Observational
- Real-world effectiveness of Anti-CGRP monoclonal antibodies compared to OnabotulinumtoxinA (RAMO) in chronic migraine: a retrospective, observational, multicenter, cohort study.The journal of headache and pain · 2024Observational
- Nine-Month Continuous Fremanezumab Prophylaxis on the Response to Triptans and Also on the Incidence of Triggers, Hypersensitivity and Prodromal Symptoms of Patients with High-Frequency Episodic Migraine.Journal of clinical medicine · 2024Article
- Revolutionizing migraine management: advances and challenges in CGRP-targeted therapies and their clinical implications.Frontiers in neurology · 2024Review
- Consensus-Based Recommendations on the Use of CGRP-Based Therapies for Migraine Prevention in the UAE.Neurology and therapy · 2023Article
- Treatment patterns for patients initiating novel acute migraine specific medications (nAMSMs) in the context of monoclonal antibodies (mAbs) targeting the calcitonin gene-related peptide (CGRP) pathway.The journal of headache and pain · 2023Article
- Real-world experience with monthly and quarterly dosing of fremanezumab for the treatment of patients with migraine in Japan.Frontiers in neurology · 2023Article
- Real-World Patient Experience of CGRP-Targeting Therapy for Migraine: a Narrative Review.Current pain and headache reports · 2022Review
- Novel Migraine Therapies May Reduce Public and Personal Disadvantages for People with Migraine.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFremanezumab, a fully humanized monoclonal antibody (IgG2Δa) that selectively targets calcitonin gene-related peptide (CGRP), is approved for migraine prevention in adults. Real-world data on the effectiveness of fremanezumab are limited. This retrospective, observational cohort study assessed patient-reported migraine symptoms, health care resource utilization (HCRU), and direct medical costs before and after fremanezumab treatment initiation.
methodsData were extracted from September 2018 through June 2020 from the Midwest component of EMRClaims+®, an integrated health services database containing > 20 million medical records from national commercial insurance claims, Medicare claims, and regional electronic medical records. Patients included in the cohort analysis were aged ≥ 18 years and were administered fremanezumab, with enrollment or treatment history for ≥ 6 months prior (pre-index) to initiating fremanezumab (index date) and ≥ 1 month after the index date (post-index), and without pregnancy or pregnancy-related encounters during the study period. Patient-reported headache frequency, migraine pain intensity (MPI), composite migraine symptoms, and HCRU were assessed pre-index and ≥ 1 month after fremanezumab initiation. Wilcoxon signed-rank tests were used to compare means of migraine symptoms and outcomes and HCRU before and after fremanezumab initiation.
resultsOverall, 172 patients were eligible for analysis. Of patients who self-reported (n = 129), 83.7% reported improvement in headache frequency or symptoms after fremanezumab treatment. Specifically, headache frequency decreased by 63% after fremanezumab initiation: mean (standard deviation) headache frequency was 22.24 (9.29) days per month pre-index versus 8.24 (7.42) days per month post-index (P < 0.0001). Mean MPI also decreased by 18% after fremanezumab initiation: MPI was 5.47 (3.19) pre-index versus 4.51 (3.34) post-index (P = 0.014). Mean emergency room (ER) visits per month decreased from 0.72 to 0.54 (P = 0.003), and mean outpatient visits per month decreased from 1.04 to 0.81 (P < 0.001). Mean hospitalizations per month decreased, but the results did not reach statistical significance (P = 0.095). Hospitalization and ER costs decreased, while outpatient costs increased, from pre-index to post-index, but differences were not statistically significant (P ≥ 0.232).
conclusionsSignificant reductions in headache frequency, MPI, and HCRU were observed after fremanezumab initiation in patients with migraine in a US real-world setting.
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