Conflict of interest Botulinum toxins (Botox Cosmetics and Myobloc) were provided by Dreampharma (Seoul, Korea), but there was no conflict of interest.
RimabotulinumtoxinB vs. onabotulinumtoxinA for the treatment of forehead lines: an evaluator-blind, randomized, pilot study
Article first published online: 3 OCT 2012
© 2012 The Authors. Journal of the European Academy of Dermatology and Venereology © 2012 European Academy of Dermatology and Venereology
Journal of the European Academy of Dermatology and Venereology
Volume 27, Issue 1, pages e1–e7, January 2013
How to Cite
Lee, D.H., Kang, S.M., Feneran, A., Youn, C.S., Kim, J.K., Cho, S., Won, C.H., Chang, S.E., Lee, M.W., Choi, J.H. and Moon, K.C. (2013), RimabotulinumtoxinB vs. onabotulinumtoxinA for the treatment of forehead lines: an evaluator-blind, randomized, pilot study. Journal of the European Academy of Dermatology and Venereology, 27: e1–e7. doi: 10.1111/j.1468-3083.2012.04681.x
Funding sources None.
- Issue published online: 18 DEC 2012
- Article first published online: 3 OCT 2012
- Received: 16 March 2012; Accepted: 19 July 2012
Background Optimum dose ratios of rimabotulinumtoxinB (BTX-B) and onabotulinumtoxinA (BTX-A) have not been determined for forehead wrinkles.
Objective To compare the efficacy and safety of BTX-B and BTX-A for the treatment of forehead lines.
Methods Twenty-two women (mean age, 40 years) with symmetrical moderate to severe forehead lines were randomized to receive single intramuscular injections of BTX-A and BTX-B on either side of the forehead, at a potency ratio of 1 : 70 or 1 : 100. Subjects were followed-up for 16 weeks. Four physicians evaluated patients’ photographs according to the 4-point Facial Wrinkling Grade (FWG). Clinical Improvement Scale (CIS) was calculated by subtracting FWG score at each visit from that at baseline. Patient satisfaction scores and adverse events were also recorded.
Results Both BTX-A and BTX-B were effective for the treatment of forehead lines. At both potency ratios, BTX-A had a longer duration of action than BTX-B, while BTX-B led to faster improvement than BTX-A. There was no significant difference in CIS between 700 U and 1000 U BTX-B treatments. Adverse effects were mild and transient.
Conclusion Both BTX-A and BTX-B were effective and well tolerated for the treatment of forehead wrinkles at potency ratios of 1 : 70 and 1 : 100.