Higher Responder Rates Observed With Live Participant Assessment Versus Photographic Assessment After VYC-20L Hyaluronic Acid Treatment for Chin Augmentation

Abstract

Abstract Background In an evaluator-blinded, randomized controlled trial, the hyaluronic acid soft-tissue filler VYC-20L injectable gel was safe and effective for correcting volume deficits and retrusion in the chin. Objectives The objective of this subanalysis was to compare responder rates obtained with photographic vs live assessments. Methods Participants were randomized 3:1 to VYC-20L treatment or a 6-month, no-treatment control period followed by optional treatment. Responder rates (≥1-point improvement from baseline on the validated Allergan Chin Retrusion Scale [ACRS]) obtained with photographic assessments and live assessments at Month 6 were compared. Prespecified subgroup analyses compared responder rates by baseline ACRS severity, filler volume, cannula usage, and investigation site. Results VYC-20L was effective for chin augmentation as evaluated with both live and photographic assessments. The ACRS responder rates at Month 6 were 91.8% with live assessments and 56.3% with photographic assessments. Consistently higher response rates were observed by live vs photographic assessment regardless of baseline ACRS severity, filler volume, cannula usage, and investigation site. Conclusions Live assessment of ACRS response after VYC-20L treatment resulted in higher responder rates than photographic assessment, supporting the use of live assessment for this indication to approximate real-world clinical practice. Level of Evidence: 1