The aim of this study is to assess the effectiveness and safety of Ilaris (canakinumab) in clinical use in patients with Schnitzler's syndrome.
Study Type
OBSERVATIONAL
Enrollment
5
Proportion of Patients Achieving Complete Clinical Response in the Period From 7 Days to 8 Weeks After the First Dose
Complete clinical response is defined as a Physician's Global Assessment (PGA) score of ≤ 5, with none of 5 items (urticaria, fatigue, fever and chills, myalgia, and arthralgia and bone pain) rated as \> 1. The PGA is a tool designed to evaluate each of 5 items (urticaria, fatigue, fever/chills, myalgia, and arthralgia/bone pain), which are clinical symptoms observed in patients with Schnitzler's syndrome, on a 5-point scale of 0 (no), 1 (minimal), 2 (mild), 3 (moderate), and 4 (severe) based on the physician's clinical examination to calculate the total score.
Time frame: Day 8 to Week 8
Proportion of Patients Achieving Partial or Complete Clinical Response at all Time Points From 7 Days After the First Dose to 48 Weeks After the First Dose
Complete clinical response is defined as a PGA score of ≤ 5, with none of 5 items (urticaria, fatigue, fever and chills, myalgia, and arthralgia and bone pain) rated as \> 1. Partial clinical response is defined as a PGA score of ≥ 6, with a decrease in PGA of ≥ 30% from baseline, or PGA score of ≤ 5, with any of 5 items (urticaria, fatigue, fever and chills, myalgia, and arthralgia and bone pain) rated as \> 1. The PGA is a tool designed to evaluate each of 5 items (urticaria, fatigue, fever/chills, myalgia, and arthralgia/bone pain), which are clinical symptoms observed in patients with Schnitzler's syndrome, on a 5-point scale of 0 (no), 1 (minimal), 2 (mild), 3 (moderate), and 4 (severe) based on the physician's clinical examination to calculate the total score.
Time frame: Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Rate of Each Clinical Response
The proportion of patients who achieve a clinical response: * Complete clinical response: PGA score of ≤ 5, with none of 5 items (urticaria, fatigue, fever and chills, myalgia, and arthralgia and bone pain) rated as \> 1 * Partial clinical response: PGA score of ≥ 6, with a decrease in PGA of ≥ 30% from baseline, or PGA score of ≤ 5, with any of 5 items (urticaria, fatigue, fever and chills, myalgia, and arthralgia and bone pain) rated as \> 1 * No clinical response: PGA score that increases, is stable, or decreases by \< 30% as compared to baseline * Relapse or worsening of clinical symptoms: Increase in PGA score of ≥ 50% from baseline The PGA is a tool designed to evaluate each of 5 items, which are clinical symptoms observed in patients with Schnitzler's syndrome, on a 5-point scale of 0 (no), 1 (minimal), 2 (mild), 3 (moderate), and 4 (severe) based on the physician's clinical examination to calculate the total score.
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Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean PGA Score
The PGA is a tool designed to evaluate each of 5 items (urticaria, fatigue, fever/chills, myalgia, and arthralgia/bone pain), which are clinical symptoms observed in patients with Schnitzler's syndrome, on a 5-point scale of 0 (no), 1 (minimal), 2 (mild), 3 (moderate), and 4 (severe) based on the physician's clinical examination to calculate the total score.
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in PGA Score
The PGA is a tool designed to evaluate each of 5 items (urticaria, fatigue, fever/chills, myalgia, and arthralgia/bone pain), which are clinical symptoms observed in patients with Schnitzler's syndrome, on a 5-point scale of 0 (no), 1 (minimal), 2 (mild), 3 (moderate), and 4 (severe) based on the physician's clinical examination to calculate the total score.
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean White Blood Cell Count
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in White Blood Cell Count
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean Neutrophil Count
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in Neutrophil Count
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean C-reactive Protein (CRP) Level
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in CRP Level
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean Alkaline phosphatase (ALP) Level
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in ALP Level
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Mean Serum Immunoglobulin (Ig) G and IgM Levels
Time frame: Baseline, Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Change From Baseline in Serum IgG and IgM Levels
Time frame: Baseline to Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Rate of Physicians Global Assessment of Impression of Improvement
The proportion of patients summarized by improvement status as assessed by the physician. Improvement assessment categories: markedly responded, responded, not responded, worsen, or indeterminate.
Time frame: Day 8, Weeks 8, 16, 24, 32, 40, and at treatment discontinuation, up to and including Week 48
Number and Percentage of Patients With Adverse Reactions
Time frame: From Baseline to Week 48
Number and Percentage of Patients With Serious Adverse Events
Time frame: From Baseline to Week 48