The impact of onabotulinumtoxinA on severe headache days: PREEMPT 56-week pooled analysis.

ABSTRACT:

Background

OnabotulinumtoxinA has been shown to reduce headache-days among patients with chronic migraine (CM). The objective of this analysis was to determine whether onabotulinumtoxinA has an impact on headache-day severity in patients with CM among those patients who were deemed non-responders based on reduction in the frequency of headache days alone.

Methods

Data from the Phase 3 REsearch Evaluating Migraine Prophylaxis Therapy (PREEMPT) clinical trial program (a 24-week, 2-treatment cycle, double-blind, randomized, placebo-controlled, parallel-group phase, followed by a 32-week, 3-treatment cycle, open-label phase) were pooled for analysis. Patients kept a daily diary to record headache severity on a 4-point scale (from none to severe), and a 6-domain Headache Impact T

SUBMITTER: Matharu M 

PROVIDER: S-EPMC5539058 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature