TY - JOUR
T1 - Evaluation of variable-dose treatment with a new U.S. botulinum toxin type A (Dysport) for correction of moderate to severe glabellar lines
T2 - Results from a phase III, randomized, Double-Blind, placebo-controlled study
AU - Kane, Michael A C
AU - Brandt, Fredric
AU - Rohrich, Rod J.
AU - Narins, Rhoda S.
AU - Monheit, Gary D.
AU - Huber, M. Barbara
PY - 2009
Y1 - 2009
N2 - Background: In April, the U.S. Food and Drug Administration approved a new U.S. formulation of botulinum neurotoxin type A (Dysport; Medicis Aesthetics, Inc., Scottsdale, Ariz.). This formulation has demonstrated inhibition of glabellar lines at a 50-unit dose. Standard clinical practice is to adjust the dose based on muscle mass. Methods: Patients stratified by race/ethnicity were randomized to receive a single treatment of Dysport administered in various doses or placebo. Dysport was administered in a total volume of 0.4 to 0.6 ml for women (50, 60, or 70 units) and 0.5 to 0.7 ml for men (60, 70, or 80 units), based on procerus/corrugator muscle mass. Efficacy was assessed by a blinded evaluator and patient self-evaluation on days 14, 30, 60, 90, 120, and 150 after treatment. Results: At day 30, 85 percent and 87 percent of Dysport-treated patients were responders as assessed by blinded evaluator and patient self-evaluation, respectively, compared with 3 percent and 5 percent of placebo-treated patients, respectively (p < 0.001). Median duration of effect was 109 days for Dysport versus 0 days for placebo (blinded evaluator) and 107 days for Dysport versus 0 days for placebo (patient self-evaluation). Response and duration of action were slightly higher in African American patients. The majority of treatment-emergent adverse events were mild or moderate in severity. Conclusion: A single treatment with Dysport, with the dose based on gender and muscle mass, is well tolerated and provides a greater and longer-lasting improvement in glabellar lines compared with placebo.
AB - Background: In April, the U.S. Food and Drug Administration approved a new U.S. formulation of botulinum neurotoxin type A (Dysport; Medicis Aesthetics, Inc., Scottsdale, Ariz.). This formulation has demonstrated inhibition of glabellar lines at a 50-unit dose. Standard clinical practice is to adjust the dose based on muscle mass. Methods: Patients stratified by race/ethnicity were randomized to receive a single treatment of Dysport administered in various doses or placebo. Dysport was administered in a total volume of 0.4 to 0.6 ml for women (50, 60, or 70 units) and 0.5 to 0.7 ml for men (60, 70, or 80 units), based on procerus/corrugator muscle mass. Efficacy was assessed by a blinded evaluator and patient self-evaluation on days 14, 30, 60, 90, 120, and 150 after treatment. Results: At day 30, 85 percent and 87 percent of Dysport-treated patients were responders as assessed by blinded evaluator and patient self-evaluation, respectively, compared with 3 percent and 5 percent of placebo-treated patients, respectively (p < 0.001). Median duration of effect was 109 days for Dysport versus 0 days for placebo (blinded evaluator) and 107 days for Dysport versus 0 days for placebo (patient self-evaluation). Response and duration of action were slightly higher in African American patients. The majority of treatment-emergent adverse events were mild or moderate in severity. Conclusion: A single treatment with Dysport, with the dose based on gender and muscle mass, is well tolerated and provides a greater and longer-lasting improvement in glabellar lines compared with placebo.
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U2 - 10.1097/PRS.0b013e3181b5641b
DO - 10.1097/PRS.0b013e3181b5641b
M3 - Article
C2 - 19584772
AN - SCOPUS:71549130229
SN - 0032-1052
VL - 124
SP - 1619
EP - 1629
JO - Plastic and reconstructive surgery
JF - Plastic and reconstructive surgery
IS - 5
ER -