Subject satisfaction with onabotulinumtoxinA treatment of glabellar and lateral canthal lines using a new patient-reported outcome measure.

Abstract

Patient satisfaction with treatment is an important outcome in facial aesthetic medicine. To evaluate subject satisfaction with onabotulinumtoxinA treatment of glabellar lines (GL) and crow's feet lines (CFL) using the validated Facial Line Satisfaction Questionnaire (FLSQ). In this randomized double-blind study, subjects with moderate/severe GL and CFL received onabotulinumtoxinA (20 U, GL; 24 U, CFL) or placebo. Over 120 days, the following were assessed: satisfaction, achievement of treatment expectations, satisfaction with duration of treatment (FLSQ), severity of GL and CFL (Facial Wrinkle Scale [FWS]), and aesthetic improvement (Global Aesthetic Improvement Scale). Satisfaction in the per-protocol population was significantly greater at Day 60 in the onabotulinumtoxinA group (n = 60) compared with placebo (n = 57) for GL (81.7% vs 0%; p < .001). Most subjects treated with onabotulinumtoxinA remained satisfied up to 120 days. Achievement of treatment expectations (86.7%; Day 60), satisfaction (81.7%; Day 60), and satisfaction with the duration of treatment (61.6%; Day 90) were significantly better with onabotulinumtoxinA than placebo (p < .001) for GL and CFL combined. Efficacy (FWS) and aesthetic improvement were observed in most subjects at Days 30 and 60, respectively. High satisfaction rates are achieved and sustained in subjects treated with onabotulinumtoxinA for GL and CFL combined.