Cohesive Polydensified Matrix Hyaluronic Acid for the Treatment of Etched-In Fine Facial Lines: A 6-Month, Open-Label Clinical Trial

BACKGROUND Available hyaluronic acid dermal fillers have unique biophysical properties that influence their clinical utility, longevity, and aesthetic outcomes. OBJECTIVE To evaluate the effectiveness and durability of a cohesive polydensified matrix hyaluronic acid dermal filler (CPM-HA) for the treatment of etched-in fine facial lines. MATERIALS AND METHODS Subjects with etched-in fine lines of the forehead, cutaneous lip, melolabial folds, nasolabial folds, and/or radial cheek received treatment with CPM-HA mixed with lidocaine and epinephrine, with an optional touch-up treatment at Week 2, if deemed necessary. Response to treatment (as measured by the Merz Aesthetics Scales, Lemperle Facial Wrinkle Scales, and subject self-assessment) and safety/tolerability were monitored over the course of 26 weeks. RESULTS Thirty-one subjects received treatment with CPM-HA to 1 or more facial areas. All 5 treatment areas showed clinically meaningful and statistically significant improvements in average clinician rating scale scores at all study visits (p

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