Is higher digital screen exposure associated with greater migraine or headache burden (risk, frequency, severity, disability) in adolescents and adults?
Does onabotulinumtoxinA remain effective and safe for chronic migraine prevention when used long-term over 2 years (9 treatments)?
COMPEL
Long-term study of the efficacy and safety of OnabotulinumtoxinA for the prevention of chronic migraine: COMPEL study
Bottom Line: In a 2-year open-label study, onabotulinumtoxinA 155 U given every 12 weeks via the fixed-site, fixed-dose paradigm produced sustained, statistically significant reductions in headache days (−10.7 days at week 108) and headache-related disability (HIT-6 −7.1) in adults with chronic migraine, with a favorable long-term safety profile (60.9% treatment-emergent AEs, 18.3%…