Meta-analysis of the Efficacy and Safety of Secukinumab for the Treatment of Plaque Psoriasis

Background: In January 2015, US FDA approved secukinumab, a human interleukin-17A (IL-17A) antagonist, for the treatment of plaque psoriasis. Objective: To provide unbiased drug information about the efficacy and safety of secukinumab for the treatment of moderate to severe plaque psoriasis by performing meta-analysis. Methods: PubMed and EMBASE database searches were conducted. Among the literatures retrieved, relevant Phase III clinical trials were analyzed. Statistical analysis of the data was performed by RevMan. Results: Four pivotal and three non-pivotal Phase III clinical trials were retrieved. All the trials evaluated the efficacy and safety of secukinumab for the treatment of moderate to severe plaque psoriasis with two co-primary endpoints: proportions of Psoriasis Area and Severity Index (PASI) responders and Investigator’s Global Assessment (IGA) responders. The overall odd ratios for proportions of PASI responders and IGA responders in secukinumab-containing arm were 65.6 and 62.5 compared to the placebo arm, respectively. Secukinumab was superior to etanercept resulting in both of the odd ratios being 3.7 compared to the etanercept. Secukinumab was generally well tolerated during the one year trial. However, as with other monoclonal antibody medications, vulnerability of respiratory infection (especially nasopharyngitis) was reported as most common adverse event. Conclusions: Meta-analysis of the seven Phase III clinical trials resulted in superiority of secukinumab over etanercept in terms of the efficacy and safety. However, long-term safety data is lacking at this time so post-marketing surveillance should be performed for any adverse events associated with the use of this new biological medication.