A randomized study of the efficacy and safety of injectable poly-L-lactic acid versus human-based collagen implant in the treatment of nasolabial fold wrinkles Rhoda S. Narins, MD, Leslie Baumann, MD, Fredric S. Brandt, MD, Steven Fagien, MD, Scott Glazer, MD, Nicholas J. Lowe, MD, FRCP, Gary D. Monheit, MD, Marta I. Rendon, MD, Rod J. Rohrich, MD, Wm. Philip Werschler, MD Journal of the American Academy of Dermatology Volume 62, Issue 3, Pages 448-462 (March 2010) DOI: 10.1016/j.jaad.2009.07.040 Copyright © 2009 American Academy of Dermatology, Inc. Terms and Conditions
Fig 1 Subject disposition diagram. Journal of the American Academy of Dermatology 2010 62, 448-462DOI: (10.1016/j.jaad.2009.07.040) Copyright © 2009 American Academy of Dermatology, Inc. Terms and Conditions
Fig 2 Improvement in Wrinkle Assessment Scale (WAS) score, as shown by mean (standard error [SE]) change from baseline by visit. Scale of figure has been reversed to show positive improvement, correlating with decreasing WAS values from baseline. Week 3 (W3) is first follow-up time point after final treatment session. Subjects received between one and 4 treatments every 3 weeks until optimum correction. M, Month. ∗P < .001 vs baseline; †P < .001 vs human collagen; ‡only subjects treated with injectable poly-L-lactic acid (PLLA) (n = 106) were included in long-term surveillance phase. Journal of the American Academy of Dermatology 2010 62, 448-462DOI: (10.1016/j.jaad.2009.07.040) Copyright © 2009 American Academy of Dermatology, Inc. Terms and Conditions
Fig 3 Left and right nasolabial folds of subjects before (left) and 13 and 25 months after (middle and right, respectively) treatment with injectable poly-L-lactic acid: mild (36-year-old woman) (A), moderate (44-year-old woman) (B), and severe (57-year-old woman) (C). Journal of the American Academy of Dermatology 2010 62, 448-462DOI: (10.1016/j.jaad.2009.07.040) Copyright © 2009 American Academy of Dermatology, Inc. Terms and Conditions
Fig 3 Left and right nasolabial folds of subjects before (left) and 13 and 25 months after (middle and right, respectively) treatment with injectable poly-L-lactic acid: mild (36-year-old woman) (A), moderate (44-year-old woman) (B), and severe (57-year-old woman) (C). Journal of the American Academy of Dermatology 2010 62, 448-462DOI: (10.1016/j.jaad.2009.07.040) Copyright © 2009 American Academy of Dermatology, Inc. Terms and Conditions