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Cited by 960

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OnabotulinumtoxinA for treatment of chronic migraine: Results from the double-blind, randomized, placebo-controlled phase of the PREEMPT 2 trial

Diener, HC, Dodick, DW, Aurora, SK, Turkel, CC, DeGryse, RE, Lipton, RB, Silberstein, SD, Brin, MF·2010·Cephalalgia

Abstract

Objectives: This is the second of a pair of studies designed to evaluate the efficacy and safety of onabotulinumtoxinA (BOTOX®) for prophylaxis of headaches in adults with chronic migraine. Methods: PREEMPT 2 was a phase 3 study, with a 24-week, double-blind, placebo-controlled phase, followed by a 32-week, open-label phase. Subjects were randomized (1:1) to injections of onabotulinumtoxinA (155U–195U; n = 347) or placebo ( n = 358) every 12 weeks for two cycles. The primary efficacy endpoint was mean change in headache days per 28 days from baseline to weeks 21–24 post-treatment. Results: OnabotulinumtoxinA was statistically significantly superior to placebo for the primary endpoint, frequency of headache days per 28 days relative to baseline (−9.0 onabotulinumtoxinA/−6.7 placebo, p < .001). OnabotulinumtoxinA was significantly favoured in all secondary endpoint comparisons. OnabotulinumtoxinA was safe and well tolerated, with few treatment-related adverse events. Few patients (3.5% onabotulinumtoxinA/1.4% placebo) discontinued due to adverse events. Conclusions: The results of PREEMPT 2 demonstrate that onabotulinumtoxinA is effective for prophylaxis of headache in adults with chronic migraine. Repeated onabotulinumtoxinA treatments were safe and well tolerated.

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Metadata

Authors
Diener, H., Dodick, D., Aurora, S., Turkel, C., DeGryse, R., Lipton, R., Silberstein, S., & Brin, M.
Venue
Cephalalgia
Published
2010-03-17
Volume
30
Issue
7
Pages
804-814
ISSN
  • 0333-1024 (ISSN-L)
  • 1468-2982
OpenAlex
W4230120862
Cited by
960
References
5
FWCI
32.50
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: OnabotulinumtoxinA for treatment of chronic migraine: Results from the double-blind, randomized, placebo-controlled phase of the PREEMPT 2 trial. https://app.cochat.ai/papers/10.1177/0333102410364677
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Diener, H., Dodick, D., Aurora, S., Turkel, C., DeGryse, R., Lipton, R., Silberstein, S., & Brin, M. (2010). OnabotulinumtoxinA for treatment of chronic migraine: Results from the double-blind, randomized, placebo-controlled phase of the PREEMPT 2 trial. Cephalalgia. https://doi.org/10.1177/0333102410364677

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