AI Article Synopsis

  • Tralokinumab significantly improved symptoms of moderate-to-severe atopic dermatitis in phase 3 trials, with notable efficacy in North American patients compared to non-North American populations.
  • At week 16, response rates for the treatment were higher than those for placebo, indicating its effectiveness as a therapy.
  • The treatment was well tolerated, with sustained improvements observed well beyond the initial 16-week period, demonstrating its potential as a long-term solution for patients suffering from atopic dermatitis.

Article Abstract

Introduction: In pivotal phase 3 tralokinumab monotherapy (ECZTRA 1/2) and topical corticosteroid (TCS) combination (ECZTRA 3) trials in adults with moderate-to-severe atopic dermatitis (AD), tralokinumab significantly improved signs and symptoms of AD. Geographic region may impact treatment response due to potential differences in race and ethnicity, and based on findings in other therapy areas. Here, we evaluated the efficacy and safety of tralokinumab in the ECZTRA 1/2/3 North American population at week 16, as well as maintenance of responses over time, and compared these data side-by-side with those of the ECZTRA 1/2/3 non-North American population.

Methods: Primary endpoints were Investigator's Global Assessment score of 0 or 1 (IGA 0/1; clear or almost clear) or at least 75% improvement in Eczema Area and Severity Index (EASI-75) at week 16. At week 16, tralokinumab-treated IGA 0/1 or EASI-75 responders were re-randomized 2:2:1 to tralokinumab 300 mg q2w, or q4w, or placebo (ECZTRA 1/2) and 1:1 to tralokinumab 300 mg q2w or q4w (ECZTRA 3).

Results: Overall, 559/1596 (35%) and 160/380 (42.1%) patients randomized in ECZTRA 1/2 and ECZTRA 3 were from North America, respectively. At week 16, IGA 0/1 and EASI-75 response rates were greater with tralokinumab versus placebo in ECZTRA 1/2 (IGA 0/1: 25.3% vs 15.1%; 95% confidence interval [CI] 3.0, 17.3; p = 0.012; EASI-75, 40.1% vs 19.4%; 95% CI 12.6, 28.7; p < 0.001) and ECZTRA 3 (IGA 0/1, 40.0% vs 25.9%; 95% CI - 0.5, 28.3; p = 0.074; EASI-75: 58.1% vs 37.0%; 95% CI 4.9, 37.0; p = 0.012) and tralokinumab was well tolerated in the North American population. Patients with IGA 0/1 or EASI-75 response at week 16 demonstrated sustained responses at week 52 and week 32 in ECZTRA 1/2 and ECZTRA 3, respectively. Similar findings were observed in the non-North American trial populations.

Conclusions: Tralokinumab, with or without TCS, displayed similar efficacy and safety in patients with moderate-to-severe AD across the North American population, and was comparable to the non-North American population.

Clinical Trial Registration: NCT03131648 (registered 27-Apr-2017); NCT03160885 (registered 19-May-2017); NCT03363854 (registered 6-Dec-2017).

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9588100PMC
http://dx.doi.org/10.1007/s13555-022-00805-yDOI Listing

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Article Synopsis
  • Tralokinumab significantly improved symptoms of moderate-to-severe atopic dermatitis in phase 3 trials, with notable efficacy in North American patients compared to non-North American populations.
  • At week 16, response rates for the treatment were higher than those for placebo, indicating its effectiveness as a therapy.
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