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Τετάρτη 4 Απριλίου 2018

Randomized, Patient/Evaluator-Blinded, Intraindividual Comparison Study to Evaluate the Efficacy and Safety of a Novel Hyaluronic Acid Dermal Filler in the Treatment of Nasolabial Folds

imageBACKGROUND Comparative research on the characteristics of filler products is limited, especially in the preclinical analysis of hyaluronic acid (HA) fillers. OBJECTIVE This study was performed to compare the preclinical characteristics, clinical efficacy, and safety of a new HA filler, IDHF-001, with Restylane SubQ in the treatment of nasolabial folds (NLFs). METHODS Viscoelasticity and injection force were evaluated. Ninety-one subjects were enrolled in this randomized, patient/evaluator-blind, intraindividual clinical study. Each subject was randomized to receive injections of IDHF-001 or Restylane SubQ in their left or right NLF. At 4, 8, 16, 24, 36, and 48 weeks, all participants were evaluated through Wrinkle Severity Rating Scale (WSRS). RESULTS The IDHF-001 showed higher viscosity (1,271 Pa·s), lower elastic modulus (G′; 611 Pa), and lower injection force (8.89 N) than Restylane SubQ (464.6 Pa·s; 674.8 Pa; 19.14 N). No significant difference in WSRS was detected between IDHF-001 side and Restylane SubQ side at 24 weeks (mean improvement in WSRS from baseline at Week 24—IDHF-001: 1.85 ± 0.61, Restylane SubQ: 1.88 ± 0.61). The noninferiority was sustained until Week 48. CONCLUSION The novel HA filler IDHF-001 shows suitable characteristics and tolerability, widening the selection possibilities for clinicians and patients in the treatment of NLFs.

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