Clinical Edge

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Dependent Trait in Chronic Migraine May Predict Nonresponse to Onabotulinumtoxin A

Key clinical point: Personality traits may predict response to onabotulinumtoxin A.

Major finding: Dependent trait was significantly associated with nonresponse to onabotulinumtoxin A among chronic migraineurs.

Study details: An observational case-control study of 112 patients with chronic migraine.

Disclosures: The study had no outside funding, and the authors reported no conflicts of interest.


Gonzalez-Martinez A et al. Headache. 2020;60(1):153-61.