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Two-Year Efficacy and Safety of Lebrikizumab in Patients with Moderate-to-Severe Atopic Dermatitis: A Long-Term
Emma Guttman-Yassky1, Stephan Weidinger2, Eric L Simpson3
1Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, Box 1047, New York, NY, USA. emma.guttman@mountsinai.org.
Introduction:
The efficacy and safety of lebrikizumab, a high-affinity monoclonal antibody targeting interleukin-13, were investigated in patients with moderate-to-severe atopic dermatitis (AD) up to 52 weeks in phase 3 trials. This analysis evaluates safety and maintenance of response through 104 weeks of lebrikizumab treatment in patients with moderate-to-severe AD who achieved clinical response with lebrikizumab at week 16.
Methods:
ADjoin is a 100-week phase 3 long-term extension study. Adult and adolescent patients with moderate-to-severe AD were enrolled into parent studies ADvocate1, ADvocate2, and ADhere. ADvocate1&2 week 16 lebrikizumab clinical responders (patients who achieved Investigator's Global Assessment [IGA] [0, 1] or Eczema Area and Severity Index [EASI] 75 without rescue) were re-randomized 2:2:1 to lebrikizumab 250 mg Q2W, Q4W, or placebo (lebrikizumab withdrawal). Patients who completed week 52 of ADvocate1&2 could enroll into ADjoin. ADhere week 16 lebrikizumab clinical responders could enroll into ADjoin and were randomized 2:1 to lebrikizumab 250 mg Q2W or Q4W. Analyses were performed on patients who received 104 weeks of lebrikizumab treatment in parent and extension studies combined. Efficacy analyses are reported as observed from week 16 for patients who were re-randomized to lebrikizumab Q2W or Q4W. Safety assessments included monitoring adverse events.
Results:
IGA (0, 1) was maintained by 86.4% (Q2W) and 76.4% (Q4W) patients from ADvocate1&2 and 83.9% (Q2W) and 78.6% (Q4W) patients from ADhere at week 104. EASI 75 was maintained by 95.6% (Q2W) and 96.3% (Q4W) ADvocate1&2 patients and 95.1% (Q2W) and 96.0% (Q4W) ADhere patients at week 104. Pruritus NRS ≥ 4-point improvement was maintained by 100% (Q2W) and 89.7% (Q4W) ADvocate1&2 patients at week 104 and 81.8% (Q2W) and 90.0% (Q4W) ADhere patients at week 68. During ADjoin, adverse events were reported by 62.2% of patients from ADvocate1&2 and ADhere who received lebrikizumab Q2W or Q4W, with the majority being mild (31.5%) or moderate (27.0%) in severity, and 2.2% leading to discontinuation due to adverse event.
Conclusions:
Skin and itch outcomes were maintained over 2 years of continuous lebrikizumab 250 mg treatment. The safety profile of lebrikizumab in ADjoin is consistent with previous lebrikizumab studies in patients with moderate-to-severe AD.
Trial Registration:
ClinicalTrials.gov, NCT04392154.
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