Abstract
Background: Interleukin 22 promotes epidermal hyperplasia and inhibits skin barrier function. Objective: Evaluate interleukin 22 blockade in adults with moderate-to-severe atopic dermatitis (AD). Methods: We performed a randomized, double-blind, placebo-controlled trial with intravenous fezakinumab monotherapy every 2 weeks for 10 weeks, with follow-up assessments until 20 weeks. The change in SCOring AD (SCORAD) score from baseline at 12 weeks served as the primary end point. Results: At 12 weeks, the mean declines in SCORAD for the entire study population were 13.8 ± 2.7 in the fezakinumab arm and 8.0 ± 3.1 in the placebo arm (P =.134). In the severe AD patient subset (with a baseline SCORAD of ≥50), SCORAD decline was significantly stronger in the drug-treated patients than placebo-treated patients at 12 weeks (21.6 ± 3.8 vs 9.6 ± 4.2, P =.029) and 20 weeks (27.4 ± 3.9 vs 11.5 ± 5.1, P =.010). At 12 weeks, improvements in body surface area involvement in the entire population were significantly stronger in the drug-treated than placebo-treated patients (12.4% ± 2.4 vs 6.2% ± 2.7; P =.009), and in the severe AD subset, the decline in Investigator Global Assessment was significantly higher in the drug-treated than placebo-treated patients (0.7 ± 0.2 vs 0.3 ± 0.1; P =.034). All scores showed progressive improvements after last dosing (10 weeks) until end of study (20 weeks). Common adverse events were upper respiratory tract infections. Limitations: The limited sample size and lack of assessment with Eczema Area and Severity Index and a pruritus numerical rating scale were limiting factors. Significance was primarily obtained in severe AD. Conclusion: Fezakinumab was well-tolerated, with sustained clinical improvements after last drug dosing.
Original language | English |
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Pages (from-to) | 872-881.e6 |
Journal | Journal of the American Academy of Dermatology |
Volume | 78 |
Issue number | 5 |
DOIs | |
State | Published - May 2018 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 American Academy of Dermatology, Inc.
Funding
Funding sources: Supported by National Institutes of Health, National Institute of Arthritis and Musculoskeletal and Skin Disease (grant no. 1UM1AR063917). Dr Brunner was supported in part by grant no. UL1 TR0001866 from the National Center for Advancing Translational Sciences, National Institutes of Health, Clinical and Translational Science Award program. Fezakinumab was provided by Pfizer Inc (New York, NY).
Funders | Funder number |
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National Institutes of Health | |
National Institute of Arthritis and Musculoskeletal and Skin Diseases | UL1 TR0001866, UM1AR063917 |
National Center for Advancing Translational Sciences |
Keywords
- IL-22
- atopic dermatitis
- fezakinumab
- moderate-to-severe AD
- placebo-controlled trial