"Safety, Tolerability, and Efficacy of Repeat-Dose Injections of IncobotulinumtoxinA in the Treatment of Upper Facial Lines: Results from a Prospective, Open-Label, Phase III Study"
IncobotulinumtoxinA (Xeomin/Xeomeen/Bocouture/XEOMIN Cosmetic; botulinum toxin type A free from complexing proteins [150 kDa]; Merz Pharmaceuticals GmbH) is indicated worldwide for the correction of glabellar frown lines (GFL) and in Europe additionally for lateral periorbital lines (LPL; crow’s feet) and upper facial lines (UFL; ie, simultaneous treatment of GFL, LPL, and horizontal forehead lines [HFL]).1
The efficacy of incobotulinumtoxinA in the treatment of multiple or singular facial areas has been extensively demonstrated.2-10 With the recent surge in interest for a more holistic approach, consisting of combined treatment of GFL, HFL, and LPL in a single treatment session, there is a need for demonstrating safety and efficacy for such procedures.
This study provides strong evidence for the safety and tolerability of repeat-dose treatments with incobotulinumtoxinA in UFL (GFL, 20 U; HFL, 10-20 U; LPL, 24 U). A stable safety profile was demonstrated during prolonged administration and a noteworthy trend to better tolerability with continued use of incobotulinumtoxinA was established