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Dermatological Adverse Events Associated with Topical Brimonidine Gel 0.33% in Subjects with Erythema of Rosacea: A Retrospective Review of Clinical Studies.

J Clin Aesthet Dermatol. 2015 Aug;8(8):29-35

Authors: Holmes AD, Waite KA, Chen MC, Palaniswamy K, Wiser TH, Draelos ZD, Rafal ES, Werschler WP, Harvey AE

Abstract
BACKGROUND: The topical α2 adrenergic receptor agonist brimonidine gel 0.33% is an effective and safe pharmacological treatment for the facial erythema of rosacea. However, adverse events of worsened redness have occasionally been reported with its use.
OBJECTIVE: A detailed analysis of adverse events is needed to accurately define worsening erythema and the adverse-events profile associated with brimonidine gel treatment.
METHODS AND MEASUREMENTS: A retrospective review of related dermatological adverse events occurring in subjects enrolled in the two pivotal four-week Phase 3 studies and the 52-week long-term safety study for brimonidine gel was conducted. Measurements included total adverse-event incidences; number of subjects experiencing adverse events; study discontinuation due to adverse events, severity, onset, episodic duration period; and correlation of adverse events to subject disposition, and rosacea profile.
RESULTS: Flushing and erythema were the most commonly reported adverse events, occurring in a total of 5.4 percent of subjects in the Phase 3 studies and in 15.4 percent in the long-term study. Most adverse events were mild or moderate in severity, transient, and intermittent. Adverse events occurred early in treatment, and duration was short-lived in the majority of cases. Adverse-event patterns were not remarkably altered with regard to subject disposition in the long-term study.
CONCLUSION: Adverse events of worsening redness are not frequent, are transient in nature, and occur early in the course of treatment with brimonidine gel.

PMID: 26345379 [PubMed]

http://www.ncbi.nlm.nih.gov/pubmed/26345379?dopt=Abstract = URL to article