Conditions: Facial Wrinkles at the Nasolabial Folds
Keywords: nasolabial folds facial wrinkles
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 140
Healthy volunteers: no

Brief summary:
The purpose of this research study is to evaluate the safety and effectiveness of injection with DGE Injectable Gel (hyaluronic acid with lidocaine manufactured by Genzyme Biosurgery) as compared to injection with Restylane (a Food and Drug Administration (FDA) approved dermal filler) in patients undergoing cutaneous correction of the nasolabial folds (NLFs).

Detailed description:
This study included an Initial and a Repeat Treatment period.

The Initial Treatment period was a subject and evaluator-blinded, randomized split face study in which subjects received DGE in one nasolabial fold and Restylane in the other nasolabial fold. Both safety and efficacy were evaluated.

In the Repeat Treatment Period, participants received DGE in both NLFs. Safety was evaluated.

Arms:
arm 1: Participants received DGE in one nasolabial fold (NLF) of one side of their face (blinded, split-face study design) in the Initial Treatment period. Participants who continued into the Repeat Treatment period were treated with DGE as an open-label treatment. arm 2: Participants received Restylane in one nasolabial fold (NLF) of one side of their face (blinded, split-face study design) in the Initial Treatment period.

Interventions: intervention 1: Dermal Gel Extra (DGE) intervention 2: Restylane intervention 3: EMLA Cream
Intervention descriptions: intervention 1: Dermal Gel Extra (DGE) Injectable Gel contains hyaluronic acid with lidocaine. DGE was administered to nasolabial folds via the intradermal route. The Principal Investigator was instructed to inject a sufficient amount of DGE to ensure full correction of the NLF wrinkles (i.e., to the optimal level of correction achievable). Up to 2 touch-up treatments were allowed in the Initial Treatment period. intervention 2: Restylane was administered to nasolabial folds via the intradermal route. The Principal Investigator was instructed to inject a sufficient amount of Restylane to ensure full correction of the NLF wrinkles (i.e., to the optimal level of correction achievable). Up to 2 touch-up treatments were allowed in the Initial Treatment period. intervention 3: EMLA Cream (Eutectic Mixture of Local Anesthetics) is an FDA-approved topical anesthetic comprised of 2.5% each of lidocaine/prilocaine. EMLA Cream was applied in approximately equal amounts prior to all injections of DGE and Restylane.

Protocol document: