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Study breakdown

FDA-Approved CGRP Antibodies for Migraine Prevention

ReviewStrong evidence
The takeaway

Three FDA-approved monoclonal antibodies targeting CGRP provide effective migraine prevention with a new mechanism of action.

39 million

Americans affected by migraine, with 3 new CGRP-targeting antibodies now available

What the researchers found

Three CGRP-targeting monoclonal antibodies are FDA-approved for migraine prevention, reducing attack frequency through a targeted mechanism not available with older drugs.

Why it matters

Migraine affects 1 in 7 people ages 15-49 and is 3 times more common in women. These first-in-class targeted preventive medications fill a critical gap for patients who couldn't tolerate existing treatments.

The numbers in context

39M Americans; 1 in 7 ages 15-49; 3x more in women; 3 FDA-approved mAbs

How the study worked

Review of clinical trial data and FDA-approved indications for erenumab, fremanezumab, and galcanezumab.

Who was studied

Adults with episodic or chronic migraine

What this study cannot tell us

Brief review without detailed comparative efficacy data. Long-term safety beyond trial durations is still being monitored.

How to read the evidence

Review of FDA-approved medications backed by phase 3 clinical trial data. Strong evidence base.

When this study was published

Published in 2020. Since then, additional CGRP-targeting medications have received approval.

The bigger picture

CGRP antibodies represent a paradigm shift — the first medications designed specifically for migraine prevention based on understanding of migraine neurobiology.

Questions still open

  • How do the three CGRP antibodies compare in efficacy and side effects?
  • What is the optimal duration of treatment?
  • Can CGRP antibodies be combined with other preventives?

Common questions

How do CGRP antibodies prevent migraines?
These antibodies block CGRP, a neuropeptide central to migraine. Erenumab blocks the CGRP receptor, while fremanezumab and galcanezumab bind CGRP itself, preventing it from activating the receptor.
Who should consider CGRP antibodies?
They are indicated for adults with episodic or chronic migraine, particularly those who haven't responded to or couldn't tolerate existing preventive medications.

Read the original research

Medications Approved for Preventing Migraine Headaches.

The American journal of medicine, 133(6), 664-667

Citation

Spindler, Brittany L; Ryan, Melody. (2020). Medications Approved for Preventing Migraine Headaches.. The American journal of medicine, 133(6), 664-667. https://doi.org/10.1016/j.amjmed.2020.01.031