Evidence map›Paper›PMID 39871598›Full record

ArticlePain management2025

Risk factors affecting the therapeutic effect of onabotulinum toxin a on chronic migraine.

Leonor Mendes-Andrade, Inês Mendes-Andrade, Beatriz Medeiros, Madalena Pinto, Andreia Costa

Abstract read
In one paragraph

Article in Pain management, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Leonor Mendes-AndradeFaculty of Medicine. University of Porto, Porto, Portugal.ORCID 0009-0008-7951-0834
Inês Mendes-AndradeDepartment of Physical Medicine and Rehabilitation Centro de Medicina de Reabilitação de Alcoitão, Cascais, Portugal.ORCID 0000-0002-3012-5467
Beatriz MedeirosNeurology Department, Centro Hospitalar Universitário de São João, Porto, Portugal.
Madalena PintoNeurology Department, Centro Hospitalar Universitário de São João, Porto, Portugal.
Andreia CostaNeurology Department, Centro Hospitalar Universitário de São João, Porto, Portugal.ORCID 0000-0002-5331-9934

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOnabotulinumtoxinA demonstrates effectiveness in chronic migraine prevention but is hindered by variable patient responses. This study aims to identify modifiable and non-modifiable risk factors influencing the response to onabotulinumtoxinA.

methodsWe conducted a retrospective cohort study at a tertiary hospital involving chronic migraine patients treated with onabotulinumtoxinA. Data on risk factors and patient perceptions were collected through medical records and questionnaires.

resultsA total of 131 patients were included. At 12 months, a significant reduction in headache frequency was observed: from 26 episodes pre-treatment to 13 at 3 months, 12 at 6 months, 11 at 9 months, and 10 at 12 months. A third of patients stopped overusing medication after treatment. Univariate logistic regressions revealed that fibromyalgia was associated with a reduced likelihood of achieving ≥50% response to onabotulinumtoxinA (OR (odds ratio) = 0.213,

conclusionsThis study confirms the real-world effectiveness of onabotulinumtoxinA in reducing headache frequency. Furthermore, patients with fibromyalgia may have a diminished likelihood of responding positively, underscoring the importance of personalized treatment strategies.

Indexed as

Botulinum Toxins, Type AMigraine DisordersNeuromuscular AgentsAdultChronic DiseaseFemaleFibromyalgiaHumansMaleMiddle AgedRetrospective StudiesRisk FactorsTreatment OutcomeBotulinum Toxins, Type ANeuromuscular Agentsonabotulinum toxin Achronic migraineOnabotulinumtoxinApreventive treatmentrisk factorstreatment response

Identifiers

PMID39871598
PMCPMC11864016

What Socratic holds

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Registered trials

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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 Socratic graph.