4.7 Article

Comparative Study of the Efficacy of Anti-CGRP mAbs on Migraineurs: Analysis of the First Year of Therapy, 1-Month Suspension Period, and Reprisal

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JOURNAL OF CLINICAL MEDICINE
卷 12, 期 23, 页码 -

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MDPI
DOI: 10.3390/jcm12237329

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anti-CGRP mAbs; erenumab; galcanezumab; fremanezumab; chronic migraine; high-frequency episodic migraine

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In this study, the clinical effectiveness of the three anti-CGRP mAbs was compared. No significant differences were found in terms of migraine frequency, intensity, and medication intake during the first year of therapy, suspension period, and reprisal. However, different response rates were observed among chronic and high-frequency episodic migraineurs.
Background: Few studies compare the clinical effectiveness of the three anti-CGRP mAbs. Moreover, no studies compare their efficacy during suspension and reprisal. Our study aimed to compare the efficacy of migraine frequency, intensity, and symptomatic medication intake during the first year of therapy, a 1-month suspension period, and a 3-month drug reprisal. Methods: A total of 160 migraineurs (chronic and high-frequency episodic) were treated with anti-CGRP mAbs (49 with fremanezumab, 55 with erenumab, and 55 with galcanezumab) for 12 months. They discontinued the therapy for 1 month and then reprised the therapy. In the three groups, we analyzed and compared the migraine days per month, migraine intensity, and symptomatic medication intake per month at baseline, 3-month, 6-month, and 12-month follow-up. We also compared these variables during the 1-month suspension and 3 months after the reprisal of the therapy. We compared the data and evaluated the response rate (>50% reduction in migraine days per month) at different follow-ups. This comparison was also performed separately for chronic and high-frequency episodic migraineurs. Results: There was no statistical difference in monthly migraine days, intensity, or symptomatic medication intake per month at the different follow-ups. Moreover, there was no difference in the response rate overall. However, in chronic migraineurs treated with galcanezumab, the response rate was higher during the 1-month suspension when compared to fremanezumab and erenumab. In high-frequency episodic migraineurs, fremanezumab had a higher response rate at 12-month follow-up when compared to galcanezumab and erenumab. Conclusions: In our study, the three anti-CGRP mAbs presented a similar response, with no significant differences, during the first year of therapy, the suspension period, and 3 months after the drug reprisal. The response rate during the 1-month suspension period in chronic migraineurs may be higher with galcanezumab.

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