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.