A multicenter, randomized trial comparing calcium hydroxylapatite to two hyaluronic acids for treatment of nasolabial folds.

Background: In this study, we examined Radiesse (calcium hydroxylapatite; CaHA), Juvederm 24 (hyaluronic acid; HA-1A), Juvederm 24HV (HA-1B), and Perlane (HA-2) for patient satisfaction, likelihood to return, immediate efficacy, and duration of correction.

Objective: This multicenter, blinded, randomized study compares patient satisfaction variables, efficacy, and durability of CaHA gel and HA for correction of nasolabial folds (NLFs) through 12 months after 4-month touch-up.

Methods: A total of 205 randomized patients received either CaHA gel or HA for NLF treatment at initial visit and 4-month touch-up. Patients returned at 4, 8, and 12 months after the second injection for evaluation. Surveys measured patient satisfaction; effectiveness measures included the Global Aesthetic Improvement Scale (GAIS).

Results: More CaHA gel patients were satisfied or extremely satisfied than each HA tested. At 8 months, significantly more CaHA gel-treated NLFs were improved on the GAIS than any HA. The volumes of CaHA gel and three HA materials injected through 4 months were 2.2, 2.9, 4.8, and 2.9 mL, respectively (p<.005). No serious adverse events were observed.

Conclusions: In this controlled study, CaHA gel ranked highest in patient satisfaction and likelihood to return. The material was more effective and longer lasting than each HA in maintaining NLF augmentation.