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

ClinicalTrials.gov ID: NCT00168428

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ClinicalTrials.gov public records Last synced Nov 15, 2026, 1:51 PM EST

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Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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

Study identification

NCT ID: NCT00168428
Recruitment status: Completed
Study type: Interventional
Phase: Phase 3
Lead sponsor: Allergan; Industry
Enrollment: 705 participants

Conditions and interventions

Conditions

Migraine Disorders

Interventions

Botulinum Toxin Type A Biological
placebo (saline) Other

Biological · Other

Eligibility (public fields only)

Age range: 18 Years to 65 Years
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Mar 2006 (Type not available)
Primary completion: Dec 2007 (Actual)
Completion: Aug 2008 (Actual)
Last update posted: Nov 18, 2013

2006 – 2008

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Not listed	Walnut Creek	California	—	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 5 non-U.S. sites.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00168428, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Nov 18, 2013 · Synced Nov 15, 2026