期刊
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
卷 74, 期 5, 页码 841-850出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.jaad.2016.01.013
关键词
efficacy; Janus kinase inhibitor; long-term; psoriasis; randomized controlled trial; safety; tofacitinib
类别
资金
- Pfizer Inc.
Background: Tofacitinib is an oral Janus kinase inhibitor being investigated for psoriasis. Objectives:We sought to report longer-term tofacitinib efficacy and safety in patients with moderate to severe psoriasis. Methods: Data from 2 identical phase-III studies, Oral-treatment Psoriasis Trial Pivotal 1 and 2, were pooled with data from these patients in an ongoing open-label long-term extension study. Patients (n = 1861) were randomized 2:2:1 to tofacitinib 5 mg, 10 mg, or placebo twice daily (BID). At week 16, placebo patients were rerandomized to tofacitinib. Pivotal study participants could enroll into the long-term extension where they received tofacitinib at 10 mg BID for 3 months, after which dosing could be 5 or 10 mg BID. Results: At week 28, the proportions of patients randomized to tofacitinib 5 and 10 mg BID achieving 75% or greater reduction in Psoriasis Area and Severity Index score from baseline were 55.6% and 68.8%, and achieving Physician Global Assessment of clear or almost clear were 54.7% and 65.9%. Efficacy was maintained in most patients through 24 months. Serious adverse events and discontinuations because of adverse events were reported in less than 11% of patients over 33 months of tofacitinib exposure. Limitations: There was no dose comparison beyond week 52. Conclusions: Oral tofacitinib demonstrated sustained efficacy in patients with psoriasis through 2 years, with 10 mg BID providing greater efficacy than 5 mg BID. No unexpected safety findings were observed.
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