Evidence map›Paper›PMID 33547541›Full record

Observational studyNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021

Erenumab for the preventive treatment of chronic migraine complicated with medication overuse headache: an observational, retrospective, 12-month real-life study.

Maria Michela Cainazzo, Carlo Baraldi, Anna Ferrari, Flavia Lo Castro, Luca Pani, Simona Guerzoni

Open access · greenAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Review
  5. Article
  6. Observational
  7. Review
  8. Article
  9. Review
  10. Article
  11. Chronic migraine evolution after 3 months from erenumab suspension: real-world-evidence-life data.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  12. Patient-reported outcomes of migraine treatment with erenumab: results from a national patient survey.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  13. Real-life assessment of erenumab in refractory chronic migraine with medication overuse headache.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  14. Review
  15. Article
  16. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Maria Michela CainazzoMedical Toxicology-Headache and Drug Abuse Research Center, Department of Specialized Medicine, AOU Policlinico di Modena, Via del Pozzo 71, 41124, Modena, Italy.
Carlo BaraldiDoctoral School of Neuroscience, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41124, Modena, Italy. infocarlobaraldi@gmail.com.ORCID http://orcid.org/0000-0001-8432-1888
Anna FerrariMedical Toxicology-Headache and Drug Abuse Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41124, Modena, Italy.
Flavia Lo CastroPost-graduated School of Pharmacology and Clinical Toxicology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41124, Modena, Italy.
Luca PaniMedical Toxicology-Headache and Drug Abuse Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41124, Modena, Italy.
Simona GuerzoniMedical Toxicology-Headache and Drug Abuse Research Center, Department of Specialized Medicine, AOU Policlinico di Modena, Via del Pozzo 71, 41124, Modena, Italy.
University of Modena and Reggio Emilia · ITAzienda Ospedaliero-Universitaria di Modena · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundErenumab is a monoclonal antibody blocking the calcitonin gene-related peptide receptor, which has been approved for the preventive treatment of chronic migraine (CM). The aim of this study was to explore the safety and effectiveness of erenumab in patients suffering from CM and medication overuse headache (MOH) in a real-life setting, up to 1 year.

methodsData regarding 81 patients treated with erenumab were retrospectively analyzed. Every 3 months, the following variables were collected: the mean number of headache days per month (headache index (HI)), the average number of painkillers taken per month (analgesic consumption (AC)), the mean number of days with painkiller consumption (number of days on medication (NDM)), the headache intensity (numeric rating scale (NRS) score), the 6-item Headache Impact Test (HIT-6), and the Self-Reported Instrument to Assess Work-Related Difficulties in Patients With Migraine (HEADWORK) scores.

resultsThe HI, AC, and NDM and the NRS, HIT-6, and HEADWORK scores were significantly lower at every time point from the 3rd month onward compared to baseline (all P < 0.0001). No significant differences were found between patients who underwent painkiller detoxification before starting erenumab and those who did not (all P > 0.05). No significant differences were found between patients taking erenumab in combination with other preventive treatments and the ones taking it alone (all P ≥ 0.05). Five patients dropped out because of adverse events, which resolved after stopping erenumab.

conclusionErenumab was safe and effective for CM complicated with MOH. Painkiller withdrawal and the association with other preventive treatment(s) seem useless.

Indexed as

Headache Disorders, SecondaryMigraine DisordersAntibodies, Monoclonal, HumanizedCalcitonin Gene-Related Peptide Receptor AntagonistsHeadacheHumansRetrospective StudiesAntibodies, Monoclonal, HumanizedCalcitonin Gene-Related Peptide Receptor AntagonistserenumabAnalgesic consumptionChronic migraineErenumabHeadache indexMedication overuse headache

Identifiers

PMID33547541
OpenAlexW3127208638

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.