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Completed

NCT Number: NCT00168428

A Study Using Botulinum Toxin Type A as Headache Prophylaxis for Migraine Patients With Frequent Headaches

This is a 60 week study including a double-blind phase followed by an open-label phase.

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Key information

Conditions

Migraine Disorders Brain Diseases Central Nervous System Diseases Headache Disorders Headache Disorders, Primary Nervous System Diseases

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Calgary, Alberta, Canada

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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 TMD
  • Diagnosis of fibromyalgia
  • Beck depression inventory score >24 at week-4
  • Psychiatric problems that may have interfered with study participation

Treatment and study plan

Botulinum toxin type A

Biological

Two treatment sessions in the double-blind phase and three treatment sessions in the open-label 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.

Other names: BOTOX®

placebo (saline)

Other

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.

Primary outcomes

  1. Change in Frequency of Headache Days

    Time frame: Baseline, Week 24

    Mean change from baseline in frequency (number) of headache days during the 28 day period ending with Week 24. Headache day defined as a calendar day [00:00 to 23:59] for which the patient reported >= 4 continuous hours of headache.

Secondary outcomes

  1. Change in Total Cumulative Hours of Headache Occurring on Headache Days

    Time frame: Baseline, Week 24

    Mean change from baseline in total cumulative hours of headache occurring on headache days during the 28 day period ending with Week 24. Headache day defined as a calendar day [00:00 to 23:59] when the patient reported >= 4 continuous hours of headache.

  2. Change in Frequency of Moderate/Severe Headache Days

    Time frame: Baseline, Week 24

    Mean change from baseline in frequency (number) of moderate/severe headache days during the 28 day period ending with Week 24. Those calendar days with >= 4 continuous hours of headache were selected. As per the patient diary, all headache episodes occurring during those days with a maximum severity of moderate or severe were counted.

  3. Change in Frequency of Migraine/Probable Migraine Headache Days

    Time frame: Baseline, Week 24

    Mean change from baseline in frequency (number) of migraine/probable migraine headache days during the 28 day period ending with Week 24. Headache day defined as a calendar day with >= 4 continuous hours of headache meeting the ICHD-II criteria for migraine or probable migraine.

  4. Change in Frequency of Headache Episodes

    Time frame: Baseline, Week 24

    Mean change from baseline in frequency (number) of headache episodes during the 28 day period ending with Week 24. Headache episode defined as patient-reported headache with a start and stop time indicating that the pain lasted >= 4 continuous hours.

  5. Percentage of Patients With Severe HIT-6 Impact Category Scores

    Time frame: Week 24

    Percentage of patients with a severe (60-78) score on the Headache Impact Test (HIT-6) Questionnaire during the 28 day period, ending with Week 24. The HIT-6 consisted of 6 questions about headache and impact on the patient's health and well-being. Answers for each question ranged from 6=Never, 8=Rarely, 10=Sometimes, 11=Very Often, and 13=Always. The total scores ranged from 36-49 (Little or No Impact), 50-55 (Some Impact), 56-59 (Substantial Impact) and 60-78 (Severe Impact).

Sponsors and collaborators

Lead sponsor

Allergan

Industry

Registry information

Important dates

Study start
2006
Primary completion
2007
Study completion
2008
First posted
Sep 15, 2005
Registry last updated
Nov 18, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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