Effects of OnabotulinumtoxinA treatment for crow's feet lines on patient-reported outcomes

Background Although millions of aesthetic procedures are performed annually, few patient-reported outcome (PRO) measures have been used in this setting. Objective To evaluate the impact of onabotulinumtoxinA treatment for crow's feet lines (CFL) on relevant psychological variables and self-perception of age/appearance in subgroup populations. Materials and methods Facial Lines Outcomes (FLO-11) Questionnaire, Self-Perception of Age (SPA), and Subject Global Assessment of Change in CFL (SGA-CFL) were PRO measures administered in 2 Phase 3, double-blind placebo-controlled trials for the treatment of CFL alone or CFL/glabellar lines (GL). Patient-reported outcome measures were analyzed by subgroups (age, gender, and baseline CFL severity). Subject satisfaction with appearance was also analyzed. Results Most subgroups receiving onabotulinumtoxinA demonstrated significant improvements in psychological impact (FLO-11 Items 2, 5, and 8) versus placebo at Day 30 (p ≤ .05). OnabotulinumtoxinA-treated subjects consistently rated themselves as looking younger on SPA versus placebo in all subgroups at Day 30 (p ≤ .05) and showed significant improvements in CFL appearance versus placebo at all time points on SGA-CFL. Overall, subjects were satisfied with their appearance. Conclusion OnabotulinumtoxinA-treated subjects experienced significant improvements in perceived appearance, attractiveness, tiredness, age, and satisfaction versus placebo. Subjects treated for CFL and GL experienced even greater effects.