Trial reportNeurology2019
Erenumab in chronic migraine with medication overuse: Subgroup analysis of a randomized trial.
Trial report in Neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 95 papers, 8 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
A Phase 2, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of AMG 334 in Chronic Migraine Prevention
Neurophysiological, Biomolecular and Psychological Aspects of Erenumab Treatment in Chronic Migraine: an Open Label, Hypothesis Generator Study
Who cites it
95 citing papers in PubMed, 8 syntheses or guidelines pooled it.
- Anti-CGRP monoclonal antibodies for chronic migraine with medication-overuse headache: a conservative meta-analysis.Arquivos de neuro-psiquiatria · 2026Pooled it
- Safety, efficacy, and compliance of moderate-to-high dose eptinezumab and erenumab in chronic migraine patients with medication-overuse headache: an updated systematic review and meta-analysis.The journal of headache and pain · 2025Pooled it
- Comparative efficacy and safety of different pharmacological therapies to medication overuse headache: a network meta-analysis.The journal of headache and pain · 2024Pooled it
- Preventive drug treatments for adults with chronic migraine: a systematic review with economic modelling.Health technology assessment (Winchester, England) · 2024Pooled it
- The transition of medication overuse status by acute medication categories in episodic or chronic migraine patients to non-overuse status after receiving anti-CGRP monoclonal antibodies: a systematic review and meta-analysis of phase 3 randomized control trial.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024Pooled it
- Pooled it
- Optimal Dose of Erenumab for Preventive Treatment of Episodic Migraine: A Systematic Review and Meta-Analysis.Current neuropharmacology · 2022Pooled it
- The efficacy of dexketoprofen for migraine attack: A meta-analysis of randomized controlled studies.Medicine · 2019Pooled it
- Efficacy and Safety of Erenumab in Adults With Medication Overuse Headache: Final Results From a Phase 4 Randomized Placebo-Controlled Study.European journal of neurology · 2025Trial
- Efficacy of Atogepant in Chronic Migraine With and Without Acute Medication Overuse in the Randomized, Double-Blind, Phase 3 PROGRESS Trial.Neurology · 2024Trial
- Cutaneous allodynia as predictor for treatment response in chronic migraine: a cohort study.The journal of headache and pain · 2023Trial
- Behavioural intervention in medication overuse headache: A concealed double-blind randomized controlled trial.European journal of neurology · 2022Trial
- Early onset of efficacy with fremanezumab in patients with episodic and chronic migraine: subanalysis of two phase 2b/3 trials in Japanese and Korean patients.The journal of headache and pain · 2022Trial
- Trial
- Efficacy and safety of erenumab in Japanese migraine patients with prior preventive treatment failure or concomitant preventive treatment: subgroup analyses of a phase 3, randomized trial.The journal of headache and pain · 2021Trial
- Trial
- Reduction in acute migraine-specific and non-specific medication use in patients treated with erenumab: post-hoc analyses of episodic and chronic migraine clinical trials.The journal of headache and pain · 2021Trial
- Comparison of 3 Treatment Strategies for Medication Overuse Headache: A Randomized Clinical Trial.JAMA neurology · 2020Trial
- A prospective real-world analysis of erenumab in refractory chronic migraine.The journal of headache and pain · 2020Trial
- Migraine-Specific Quality-of-Life Questionnaire (MSQ) Version 2.1 Score Improvement in Japanese Patients with Episodic Migraine by Galcanezumab Treatment: Japan Phase 2 Study.Journal of pain research · 2020Trial
35 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the effect of erenumab, a human anti-calcitonin gene-related peptide receptor monoclonal antibody, in patients with chronic migraine and medication overuse.
methodsIn this double-blind, placebo-controlled study, 667 adults with chronic migraine were randomized (3:2:2) to placebo or erenumab (70 or 140 mg), stratified by region and medication overuse status. Data from patients with baseline medication overuse at baseline were used to assess changes in monthly migraine days, acute migraine-specific medication treatment days, and proportion of patients achieving ≥50% reduction from baseline in monthly migraine days.
resultsOf 667 patients randomized, 41% (n = 274) met medication overuse criteria. In the medication overuse subgroup, erenumab 70 or 140 mg groups had greater reductions than the placebo group at month 3 in monthly migraine days (mean [95% confidence interval] -6.6 [-8.0 to -5.3] and -6.6 [-8.0 to -5.3] vs -3.5 [-4.6 to -2.4]) and acute migraine-specific medication treatment days (-5.4 [-6.5 to -4.4] and -4.9 [-6.0 to -3.8] vs -2.1 [-3.0 to -1.2]). In the placebo and 70 and 140 mg groups, ≥50% reductions in monthly migraine days were achieved by 18%, 36% (odds ratio [95% confidence interval] 2.67 [1.36-5.22]) and 35% (odds ratio 2.51 [1.28-4.94]). These clinical responses paralleled improvements in patient-reported outcomes with a consistent benefit of erenumab across multiple measures of impact, disability, and health-related quality of life. The observed treatment effects were similar in the non-medication overuse subgroup.
conclusionsErenumab reduced migraine frequency and acute migraine-specific medication treatment days in patients with chronic migraine and medication overuse, improving disability and quality of life. CLINICALTRIALSGOV IDENTIFIER: NCT02066415. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that erenumab reduces monthly migraine days at 3 months in patients with chronic migraine and medication overuse.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.