Journal of Dermatological Treatment · Available online 12 Mar 2026 · In press · DOI 10.1080/09546634.2026.2631233
Background Lebrikizumab, a high-affinity monoclonal antibody targeting interleukin-13, effectively treats moderate-to-severe atopic dermatitis (AD).Methods Lebrikizumab-treated patients in ADvocate1&2 achieving per-protocol response—IGA (0,1) or EASI 75 at Week 16—were re-randomized 2:2:1 to lebrikizumab 250 mg every 2 weeks (Q2W), Q4W, or placebo (lebrikizumab withdrawal). Patients completing Week 52 could enroll in the extension study, ADjoin. Deep response was defined as IGA (0), EASI 100, or Pruritus Numerical Rating Scale score 0 or 1 (NRS [0,1]). This analysis reports as-observed data.Results and Conclusions From Week 16–104, among IGA (0,1) responders at Week 16, increased proportions of patients achieved IGA (0) with lebrikizumab Q2W (33.8% [Nx = 77] to 52.3% [Nx = 44]) and Q4W (29.9% [Nx = 77] to 45.5% [Nx = 55]); among EASI 75 responders at Week 16, increased proportions of patients achieved EASI 100 with lebrikizumab Q2W (21.4% [Nx = 112] to 39.7% [Nx = 68]) and Q4W (20.0% [Nx = 115] to 41.3% [Nx = 80]); and among per-protocol responders, increased proportions of patients reported Pruritus NRS (0,1) with lebrikizumab Q2W (35.2% [Nx = 108] to 57.4% [Nx = 61]) and Q4W (34.2% [Nx = 114] to 55.4% [Nx = 65]). Continued lebrikizumab treatment for 2 years resulted in approximately half of per-protocol responders achieving complete skin clearance (IGA 0) and itch relief, raising the bar of treatment goals for AD patients.
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