Abstract
Background. Dupilumab has shown good effectiveness and safety in patients with moderate‐to‐severe atopic dermatitis. However, there is a lack of clinical data that focuses solely on the treatment response for the endpoint to observe the short‐term goal (12 weeks) in the treatment‐to‐target (T2T) concept. Study on predictors of early treatment response is also limited. Objective. To evaluate the early effectiveness and safety of dupilumab in the treatment of moderate‐to‐severe atopic dermatitis and to identify possible predictors of response. Methods. Using a retrospective study method, patients with moderate‐to‐severe atopic dermatitis who received dupilumab for ≥12 weeks at the Southwest Hospital between September 2019 and April 2022 were included. Results. Totally 16.25% of patients achieved EASI75 after 4 weeks and 53.75% achieved EASI75 after 12 weeks. SCORAD, EASI, and NRS were 50.17 ± 17.35, 13.51 ± 12.33 and 7.10 ± 1.82 in turn at baseline, and decreased to 29.94 ± 15.01, 6.97 ± 7.92, 3.64 ± 1.39 and 14.96 ± 10.31, 3.05 ± 4.16, 2.19 ± 1.09 after 4 and 12 weeks, respectively, with statistically significant differences (p < 0.01). After 12 weeks, the changes in peripheral blood eosinophil count (decreased from (0.60 ± 0.43) ∗ 10^9/L to (0.30 ± 0.21) ∗ 10^9/L), total IgE level (decreased from 547.00 (179.00, 2167.50) IU/ml to 216.50 (106.00, 825.00) IU/ml), and LDH (decreased from (166.11 ± 171.59) IU/L to (67.54 ± 70.68) IU/L) from baseline were significant (p < 0.01). Elevated peripheral blood eosinophil counts might be associated with an inadequate response to dupilumab (SCORAD12w: p = 0.007; EASI12w: p = 0.003; NRS12w: p = 0.030). The most common adverse events were reactions at the injection site (6/80) and conjunctivitis (4/80). Conclusion. Dupilumab showed good early effectiveness and safety in real‐world practice in Chinese patients with moderate‐to‐severe atopic dermatitis.
Funder
National Natural Science Foundation of China