Conditions: Wrinkles
Keywords: Forehead Wrinkles Toxin
Allocation: RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 30
Healthy volunteers: no

Brief summary:
Single-centre, controlled, randomized, evaluator-blinded, bilateral (split-face) comparison study in subjects with moderate to severe forehead wrinkles.

One botulinum toxin type A will be injected in one side of the forehead and the other one will be injected in the other side of the forehead at baseline. Allocation of each BoNT-A to each side of the forehead will be randomized.

Detailed description:
There are two formulations of BoNT-A available: Botox®/Vistabel®, Allergan and Dysport®/Azzalure®, Ipsen - Galderma. These formulations behave distinctly in different ways electrophysiologically and clinically and results obtained with one formulation cannot be extrapolated to the other. There are only few clinical research directly comparing the two formulations in the treatment of forehead lines.

Arms:
arm 1: None

Interventions: intervention 1: Botulinum Toxin Type A - Azzalure intervention 2: Botulinum Toxin Type A - Vistabel
Intervention descriptions: intervention 1: One botulinum toxin type A will be injected in one side of the forehead and the other one will be injected in the other side of the forehead at Baseline. Allocation of each BoNT-A to each side of the forehead will be randomized. intervention 2: One botulinum toxin type A will be injected in one side of the forehead and the other one will be injected in the other side of the forehead at Baseline. Allocation of each BoNT-A to each side of the forehead will be randomized.

Protocol document: