A Prospective, Multicenter, Randomized, Rater- and Subject-Blind, Parallel Group Trial to Investigate the Non-Inferiority of NT 201, Free of Complexing Proteins, in Comparison With Clostridium Botulinum Toxin Type A in the Treatment of Glabellar Frown Lines
A Prospective, Multicenter, Randomized, Rater- and Subject-Blind, Parallel Group Trial to Investigate the Non-Inferiority of NT 201, Free of Complexing Proteins, in Comparison With Clostridium Botulinum Toxin Type A in the Treatment of Glabellar Frown Lines
NT 201, also known as IncobotulinumtoxinA (Xeomin®/Bocouture®), is a Botulinum toxin type A preparation free of complexing proteins (150 kiloDalton). Injected into the muscle, NT201 causes a reversible local relaxation of the injected muscle. Botulinum toxin type A is used for aesthetic treatment of mimic wrinkles and in the therapy of neurologic diseases. This study will investigate the safety and efficacy (non-inferiority) of NT 201 in comparison with OnabotulinumtoxinA (Vistabel®) in the treatment of glabellar frown lines.
Main Inclusion Criteria:
• Moderate to severe glabellar frown lines at maximum frown (severity score of 2 or 3 on a 4-point facial wrinkle scale) as assessed by the investigator's rating: 0 = 'none', 1 = 'mild', 2 = 'moderate', 3 = 'severe'.
Main Exclusion Criteria:
Suttion Coldfield, United Kingdom