A Study Using Botulinum Toxin Type A as Headache Prophylaxis for Migraine Patients With Frequent Headaches
Migraine Disorders
About this trial
This is an interventional treatment trial for Migraine Disorders
Eligibility Criteria
Inclusion Criteria: Frequent migraine (>=15 headache days per month) >=4 distinct headache episodes lasting >=4 hours >=50% of baseline headache days migraine/probable migraine days Exclusion Criteria: Previous use of botulinum toxin of any serotype or immunization to any botulinum toxin serotype Any medical condition that puts the patient at increased risk with exposure to BOTOX Diagnosis of complicated migraine, chronic tension-type headache, hypnic headache, hemicrania continua, new daily persistent headache Use of prophylactic headache medication within 28 days prior to week -4 Unremitting headache lasting continuously throughout the 4-week baseline period Known or suspected Temporomandibular Disorders (TMD) Diagnosis of fibromyalgia Beck depression inventory score >24 at week-4 Psychiatric problems that may have interfered with study participation
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
botulinum toxin Type A
Placebo (saline)
Two treatment sessions in the double-blind phase and three treatment sessions in the open-label extension phase. Total minimum dose is 155 U with 31 fixed-site, fixed dose injections across seven specific head/neck muscle areas with the total maximum dose of 195 U with 39 head/neck injections.
Two treatment sessions in the double-blind phase. Total minimum dose in 155 U with 31 fixed-site, fixed dose injections across seven specific head/neck muscle areas and the total maximum dose is 195 U with 39 head/neck injections.