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BOTOX® Prophylaxis in Patients With Chronic Migraine

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01432379
Enrollment
1168
Registered
2011-09-13
Start date
2011-09-09
Completion date
2015-05-12
Last updated
2019-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Migraine Disorders

Brief summary

This is a post authorization observational study to monitor the utilization practices and describe the safety profile of BOTOX® in clinical practice for the prophylactic treatment of headaches in adult patients with chronic migraine.

Interventions

BIOLOGICALbotulinum toxin Type A

155-195 U of botulinum toxin Type A administered intramuscularly in the face, head, and neck areas as directed by physician (approximately every 12 weeks) for 1 year.

Sponsors

Allergan
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of chronic migraine * Willing to use BOTOX® as preventative treatment for migraine

Exclusion criteria

* None

Design outcomes

Primary

MeasureTime frameDescription
Incidence Rate of Dysphagia64 weeksIncidence rates are reported for subjects with events per 1,000 person-months and are based on the first reported occurrence of dysphagia from study enrollment up to 64 weeks. Dysphagia is difficulty or discomfort swallowing.

Secondary

MeasureTime frameDescription
Incidence Rate of Intractable Migraine64 weeksIncidence rates are reported for subjects with events per 1,000 person-months and are based on the first reported occurrence of intractable migraine from study enrollment up to 64 weeks. Intractable migraine is a migraine that does not seem to go away.

Countries

Germany, Spain, Sweden, United Kingdom

Participant flow

Participants by arm

ArmCount
Botulinum Toxin Type A
155-195 U of botulinum toxin Type A administered intramuscularly in the face, head, and neck areas as directed by physician (approximately every 12 weeks) for 1 year.
1,160
Total1,160

Baseline characteristics

CharacteristicBotulinum Toxin Type A
Age, Continuous46.6 Years
STANDARD_DEVIATION 11.75
Sex: Female, Male
Female
977 Participants
Sex: Female, Male
Male
183 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
106 / 1,160
serious
Total, serious adverse events
61 / 1,160

Outcome results

Primary

Incidence Rate of Dysphagia

Incidence rates are reported for subjects with events per 1,000 person-months and are based on the first reported occurrence of dysphagia from study enrollment up to 64 weeks. Dysphagia is difficulty or discomfort swallowing.

Time frame: 64 weeks

Population: Treated Population: all patients who received at least 1 dose of botulinum toxin Type A

ArmMeasureValue (NUMBER)
Botulinum Toxin Type AIncidence Rate of Dysphagia0.4 events per 1,000 person-months
Secondary

Incidence Rate of Intractable Migraine

Incidence rates are reported for subjects with events per 1,000 person-months and are based on the first reported occurrence of intractable migraine from study enrollment up to 64 weeks. Intractable migraine is a migraine that does not seem to go away.

Time frame: 64 weeks

Population: Treated Population: all patients who received at least 1 dose of botulinum toxin Type A

ArmMeasureValue (NUMBER)
Botulinum Toxin Type AIncidence Rate of Intractable Migraine1.6 events per 1,000 person-months

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026