Long-term efficacy and safety of brodalumab in the treatment of psoriasis: 120-week results from the randomized, double-blind, placebo- and active comparator-controlled phase 3 AMAGINE-2 trial.
Journal of the American Academy of Dermatology(2019)
Abstract
BACKGROUND:Randomized controlled trials have shown the efficacy and safety of brodalumab in patients with moderate to severe plaque psoriasis.
OBJECTIVE:To evaluate the efficacy and safety of brodalumab through 120 weeks of treatment in the AMAGINE-2 trial.
METHODS:Patients received ustekinumab through week 52 followed by brodalumab 210 mg every 2 weeks, continuous brodalumab 210 mg every 2 weeks, or any dose of brodalumab. Efficacy data were reported through 120 weeks by using observed data, last observation carried forward, and nonresponder imputation analyses.
RESULTS:Of patients who received brodalumab 210 mg every 2 weeks, 84.4%, 75.6%, and 61.1% achieved 75%, 90%, and 100% improvement from baseline in Psoriasis Area and Severity Index at 120 weeks (observed data analysis), respectively. Patients who received brodalumab 210 mg every 2 weeks after receiving ustekinumab through 52 weeks achieved a similar skin clearance response as patients who received continuous brodalumab 210 mg every 2 weeks. Safety through 120 weeks was comparable to that of the blinded study periods.
LIMITATIONS:A large number of discontinuations toward the end of the study (31% in the final 6 months) were due to early termination and led to differences between observed data and nonresponder imputation results.
CONCLUSIONS:Brodalumab is well tolerated and showed robust efficacy for more than 2 years.
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