OnabotulinumtoxinA Approved for Treatment of Platysma Bands

The US Food and Drug Administration (FDA) has approved onabotulinumtoxinA (Botox Cosmetic) for temporary improvement in the appearance of moderate to severe platysma bands in adults.
According to a press release from Allergan Aesthetics, which developed onabotulinumtoxinA, by injecting along the jawline and the vertical bands connecting the jaw and neck with one of the FDA-approved doses of the product based on severity, onabotulinumtoxinA temporarily reduces underlying muscle activity.
The company cited results from phase 3 clinical studies, which demonstrated statistical significance for the improvement in appearance of platysma bands from baseline with onabotulinumtoxinA compared with placebo on both investigator and patient assessment (P < .0001).
All secondary endpoints were also met, as measured by multiple validated, proprietary patient–reported outcome instruments. In two of the clinical studies, for example, 65% and 62% of patients reported being “very satisfied” or “satisfied,” respectively, with their neck and jawline definition 14 days after treatment with a dose of 26, 31, or 36 units of onabotulinumtoxinA compared with 12% with placebo in both studies.
The development marks the fourth indication for onabotulinumtoxinA. The others are for moderate to severe glabellar lines associated with corrugator and/or procerus muscle activity, moderate to severe lateral canthal lines associated with orbicularis oculi activity, and moderate to severe forehead lines associated with frontalis activity.
 
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