CGRP Therapies May Reduce Migraine Days
Systematic review found high-certainty evidence for several calcitonin gene–related peptide–targeted therapies.
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By
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Andrea Surnit
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May 20, 2026
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1
CGRP-targeted therapies reduced monthly migraine headache days by about 2 days compared to placebo in chronic migraine patients.
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The systematic review included 43 trials with 14,725 adult patients, establishing high-certainty evidence for several CGRP therapies.
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3
Fremanezumab and erenumab showed high-certainty evidence for achieving at least a 50% reduction in migraine days.
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Galcanezumab likely reduced dropout rates due to any cause, while erenumab and atogepant increased risks of constipation and nausea.
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The review highlighted the need for larger independent trials to assess long-term safety and effectiveness of CGRP therapies.