OnabotulinumtoxinA (Botox) in the Treatment of Crow’s Feet Lines in Japanese Subjects

Autor: Makoto Kawashima, Elisabeth Lee, Nobutaka Furuyama, Xiaofang Lei, Kiyonori Harii, René Hopfinger
Rok vydání: 2017
Předmět:
Zdroj: Aesthetic Plastic Surgery
ISSN: 1432-5241
0364-216X
DOI: 10.1007/s00266-017-0844-9
Popis: Background This study evaluated the safety and efficacy of onabotulinumtoxinA in Japanese subjects with crow’s feet lines (CFL). Methods This phase 3, multicenter, double-blind, randomized study included 2 treatment periods: 6-month placebo-controlled period followed by a 7-month open-label period. In period 1, subjects with moderate to severe CFL received onabotulinumtoxinA 24 U (n = 104) or 12 U (n = 99), or placebo (n = 97). In period 2, placebo subjects switched to onabotulinumtoxinA 24 U or 12 U (double-blind dose). Up to 5 total treatments were permitted for subjects meeting re-treatment criteria. The primary efficacy measure was the proportion of investigator-assessed responders (achieving CFL severity of none or mild at maximum smile using the Facial Wrinkle Scale with Asian Photonumeric Guide [FWS-A] at day 30 of treatment 1). Additional endpoints included other responders (achieving at least 1-grade improvement at maximum smile and at rest using the FWS-A at day 30), responders at other time points, duration of effect, subject-reported outcomes, and safety. Results All efficacy endpoints were met. At day 30, the proportion of subjects achieving none or mild severity at maximum smile was significantly greater (P
Databáze: OpenAIRE