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

> **NCT00168428** · PHASE3 · COMPLETED · sponsor: **Allergan** · enrollment: 705 (actual)

## Conditions studied

- Migraine Disorders

## Interventions

- **BIOLOGICAL:** Botulinum Toxin Type A
- **OTHER:** placebo (saline)

## Key facts

- **NCT ID:** NCT00168428
- **Lead sponsor:** Allergan
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-03
- **Primary completion:** 2007-12
- **Final completion:** 2008-08
- **Target enrollment:** 705 (ACTUAL)
- **Last updated:** 2013-11-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00168428

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00168428, "A Study Using Botulinum Toxin Type A as Headache Prophylaxis for Migraine Patients With Frequent Headaches". Retrieved via AI Analytics 2026-08-02 from https://api.ai-analytics.org/clinical/NCT00168428. Licensed CC0.

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