ArticleThe journal of headache and pain2025
CGRP-targeted therapy fulfilling the treatment gap in medication-underuse setting: a retrospective cohort study at a tertiary headache center in Thailand, a lower-middle-income country.
Article in The journal of headache and pain, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Associations between oral migraine preventive regimens and CGRP monoclonal antibody initiation: real-world evidence from a resource-limited setting.BMC neurology · 2026Article
- Diagnosis challenges and accessibility barriers to migraine management in Southeast Asia: results from the South-East Asia Local breAch on MigraiNe Treatment (SEALANT) study.The journal of headache and pain · 2026Article
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6 authors.
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Abstract
backgroundMigraine preventive treatment is essential to reducing the burden of disease. However, discontinuation of oral migraine preventive medications (OMPMs) remains common due to suboptimal efficacy and tolerability, especially in lower-middle-income countries, which may contribute to migraine progression-a situation that has led to the introduction of the concept of "Medication Underuse Headache". The calcitonin gene-related peptide monoclonal antibody (CGRP mAbs) might close the gap in this situation. This study aimed to investigate the treatment patterns of migraine preventive medications over six months at a tertiary headache center in Thailand and to explore the association between each preventive medication class and discontinuation rates.
methodsA single-center retrospective cohort study was conducted between 2021 and 2023. Adult patients who were diagnosed with migraine and received at least one preventive medication at their first visit to the Headache Clinic at King Chulalongkorn Memorial Hospital were included, with a minimum follow-up period of six months. The primary outcome was the discontinuation of any migraine preventive medication from the baseline regimen during follow-up visits. A multivariable Cox regression model, adjusted for sex, age, and diagnosis, was used to explore baseline factors associated with the discontinuation of preventive migraine medications.
resultsAmong the 100 eligible patients (mean age [SD]: 39.6 [14.4] years; 87.0% female), 41.0% (41/100) discontinued at least one preventive medication, most commonly due to intolerance to side effects (53.7%, 22/41) and lack of treatment effectiveness (34.1%, 14/41). The highest discontinuation rates were observed with serotonin norepinephrine reuptake inhibitors at 53.8% (7/13), calcium channel blockers at 37.5% (6/16), and beta-blockers at 25.6% (11/43). Notably, no patients discontinued CGRP mAbs. Patients using CGRP mAbs at baseline had a significantly higher rate of discontinuing at least one other oral preventive medication compared to those who did not use CGRP mAbs: 31.7% vs. 25.4% at month 3, and 55.4% vs. 33.4% at month 6 (p = 0.04). After adjustment, baseline use of CGRP mAbs was significantly associated with an increased risk of discontinuing at least one medication in the regimen (adjusted odds ratio 2.16; 95% CI: 1.16 to 4.03, p = 0.02).
conclusionDiscontinuation of preventive migraine treatment remains a significant issue in Thailand. CGRP mAbs were associated with higher treatment persistence and may help reduce polypharmacy in migraine management.
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