A Study of Lebrikizumab (LY3650150) in Combination With Topical Corticosteroids in Japanese Participants With Moderate-to-Severe Atopic Dermatitis

A Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of Lebrikizumab When Used in Combination With Topical Corticosteroid Treatment in Japanese Patients With Moderate-to-Severe Atopic Dermatitis

The main purpose of this study is to evaluate the efficacy and safety of lebrikizumab in combination with a topical corticosteroids in Japanese participants with atopic dermatitis.

Inclusion Criteria:

• Have chronic Atopic Dermatitis (AD) that has been present for ≥1 year before the screening.

• Have moderate-to-severe AD, including all of the following:

  • EASI score ≥16 at the baseline
  • IGA score ≥3 (scale of 0 to 4) at the baseline
  • AD involvement on ≥10% of Body Surface Area (BSA) at the baseline

• Have a documented history provided by a physician and/or investigator of inadequate response to existing topical medications within 6 months preceding screening as defined by at least 1 of the following:

  • Inability to achieve good disease control, defined as mild disease or better (for example, IGA ≤2) after use of at least a medium-potency topical corticosteroids (TCS) for at least 4 weeks, or for the maximum duration recommended by the product prescribing information (for example, 14 days for super-potent TCS), whichever is shorter. Topical corticosteroids may be used with or without Topical calcineurin inhibitors (TCI) and/or topical Janus Kinase (JAK) inhibitors.
  • Participants who failed systemic therapies intended to treat AD within 6 months preceding screening, such as cyclosporine, methotrexate (MTX), azathioprine, and mycophenolate mofetil (MMF), will also be considered as surrogates for having inadequate response to topical therapy.

• Body weight ≥40 kilogram (kg)

Exclusion Criteria:

• Have a history of anaphylaxis
• Have uncontrolled chronic disease that might require bursts of oral corticosteroids for example, comorbid severe uncontrolled asthma within the past 12 months requiring systemic corticosteroid treatment or hospitalization for >24 hours at baseline.
• Have an active chronic or acute infection requiring treatment with systemic antibiotics, antivirals, antiparasitics, antiprotozoals, or antifungals within 2 weeks before the baseline or superficial skin infections within 1 week before the baseline.
• Evidence of acute or chronic hepatitis or known liver cirrhosis.
• Have a history of pneumocystis pneumonia (PCP) or a positive beta-D-glucan test at screening and a confirmed diagnosis of PCP.
• Have a history of human immunodeficiency virus (HIV) infection or positive HIV serology at screening.
• Have presence of skin comorbidities (for example, sclerosis, psoriasis, or lupus erythematosus) that may interfere with study assessments.
• Have presence of significant uncontrolled neuropsychiatric disorder.
• Have been exposed to a live vaccine within 12 weeks prior to baseline or are expected to need/receive a live vaccine during the study or up to 125 days after the last dose of study drug.