ArticleJournal of neurology2023
Could efficacy at 1 week after galcanezumab administration for patients with migraine predict responders at 3 months? A real world study.
Article in Journal of neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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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
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Real-world effectiveness and safety of galcanezumab for the treatment of migraine: A systematic review and meta-analysis.Headache · 2026Pooled it
- Calcitonin Gene-Related Peptide Monoclonal Antibody Utilization and Treatment Gaps in People with Migraine in Japan: Results from the OVERCOME (Japan) 2nd Study.Drugs - real world outcomes · 2026Article
- Real-World Characteristics and Treatment Patterns of Calcitonin Gene-Related Peptide Monoclonal Antibody Users: a Japanese Claims Database-Based Study.Pain and therapy · 2026Article
- Use of CGRP Monoclonal Antibodies in Japan, South Korea, and Taiwan: A Narrative Review.Current pain and headache reports · 2026Review
- Patient-Doctor Communication in Migraine: Results from the OVERCOME (Japan) 2nd Study.Neurology and therapy · 2025Article
- The Impact of Migraine on the Whole Life Course of Patients: Results from the OVERCOME (Japan) 2nd Study.Neurology and therapy · 2025Article
- Calcitonin Gene-Related Peptide Monoclonal Antibodies: Key Lessons from Real-World Evidence.Brain sciences · 2024Review
- Real-life experiences with galcanezumab and predictors for treatment response in Turkey.BMC neurology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn real-world studies, it is unclear whether galcanezumab has a significant effect in the first week after administration.
methodsWe retrospectively assessed 55 high-frequency episodic migraine (HFEM) and chronic migraine patients who received three galcanezumab doses. Mean changes in the numbers of weekly migraine days (WMDs) during month 1 and migraine days per month (MMDs) after 1-3 months of treatment were obtained. Clinical factors related to a ≥ 50% response rate (RR) at month 3 were analyzed. The prediction of ≥ 50% responders at month 3 using different weekly RRs at week 1 (W1) was evaluated. The RR at W1 was calculated with the following formula: RR (%) = 100 - [(WMDs at W1/baseline WMD) × 100].
resultsThe number of MMDs significantly improved from baseline to 1, 2 and 3 months. The ≥ 50% RR was 50.9% at 3 months. The number of WMDs decreased significantly from baseline to week 1 (- 1.6 ± 1.7 days), week 2 (- 1.2 ± 1.6 days), week 3 (- 1.0 ± 1.3 days), and week 4 (- 1.1 ± 1.6 days) during month 1. The RR at W1 was largest (44.6 ± 42.2%). The ≥ 30%, ≥ 50% and ≥ 75% RRs at W1 were significantly predictive of a ≥ 50% RR at 3 months. Logistic regression analysis predicting a ≥ 50% RR at month 3 showed that the RR at W1 was the sole contributing factor.
conclusionIn our study, galcanezumab showed a significant effect in the first week after administration, and the RR at W1 could predict the RR at 3 months.
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