At a glance
ClinicalIndex Comparison RecordPhase 4Completed· 716 enrolled
Drug / intervention
onabotulinumtoxinAbiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
A Long-term Efficacy, Safety, and Tolerability Study of BOTOX® in Patients With Chronic Migraine
In Brief
A Phase 4 clinical trial evaluating onabotulinumtoxinA for Migraine Disorders. Completed, enrolled 716 participants across 32 sites in 3 countries.
Detailed Summary
This open-label study will assess the long-term efficacy, safety, and tolerability of onabotulinumtoxinA administered for prophylaxis of headaches in patients with chronic migraine.
Study Details
Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsMigraine Disorders
CountriesAustralia, South Korea, United States
Collaborators--
Timeline
Phase 4CompletedFinished
201220132014201520162017201820192020202120222023202420252026
Enrollment StartDec 2011
First PostedJan 2012
Primary CompletionNov 2015
TodayJul 2026
First PostedJan 25, 2012
Enrollment StartDec 1, 2011
Primary CompletionNov 1, 2015
TodayJul 2, 2026
Enrollment to primary: 3.9 yearsPosted 14.4 years ago
Interventions
onabotulinumtoxinAbiological
Participants received 155 U of onabotulinumtoxinA approximately every 12 weeks for 108 weeks. OnabotulinumtoxinA was administered as 31 intramuscular injections in 7 head/neck muscle areas.