Safety and Efficacy of Secukinumab Compared to Etanercept in Subjects With Moderate to Severe, Chronic Plaque-Type Psoriasis

A 75% reduction in the Psoriasis Area and Severity Index (PASI) score (PASI 75) is the current benchmark of primary endpoints for most clinical trials of psoriasis

The IGA mod 2011 scale has been developed based on a previous version of the scale used in secukinumab phase II studies in collaboration with health authorities, in particular the FDA. The explanations/descriptions of the points on the scale have been improved to ensure appropriate differentiation between the points. The IGA mod 2011 used in this study is static, i.e. it refers exclusively to the subject's disease state at the time of the assessments, and does not attempt a comparison with any of the subject's previous disease states, whether at baseline or at a previous visit.IGA mod 2011 has a scale of 0-4 with the lower scores correlating to better performance. A score of 0= clear skin, 1= almost clear skin, 2=mild, 3=moderate,4=severe.

A 90% reduction in the Psoriasis Area and Severity Index (PASI) score (PASI 90) is above current benchmark of primary endpoints for most clinical trials of psoriasis

A 75% reduction in the Psoriasis Area and Severity Index (PASI) score (PASI 75) is the current benchmark of primary endpoints for most clinical trials of psoriasis

The IGA mod 2011 scale has been developed based on a previous version of the scale used in secukinumab phase II studies in collaboration with health authorities, in particular the FDA. The explanations/descriptions of the points on the scale have been improved to ensure appropriate differentiation between the points. The IGA mod 2011 used in this study is static, i.e. it refers exclusively to the subject's disease state at the time of the assessments, and does not attempt a comparison with any of the subject's previous disease states, whether at baseline or at a previous visit.IGA mod 2011 has a scale of 0-4 with the lower scores correlating to better performance. A score of 0= clear skin, 1= almost clear skin, 2=mild, 3=moderate,4=severe.

The Psoriasis Symptom Diary©, a 16-item patient reported outcome (PRO) measure developed and validated in accordance with the FDA PRO Guidance (FDA Guidance for Industry: Patient-Reported Outcome Measures: Use in Medical Product Development to Support Labeling Claims, 2009), demonstrated favorable psychometric properties and usefulness for treatment efficacy evaluation alongside other measures of disease severity in clinical trials for chronic plaque psoriasis.Weekly averages will be derived for each of the 16 questions of the Psoriasis Diary up to Week 12. A weekly average is the sum of the scored item over the course of the study week divided by the number of days on which the item was completed and will be set to missing if four or more daily assessments were missing of the corresponding question. The range for each question is 0 to 10 with the higher score depicting a more progressed disease state. A reduction in score from baseline shows efficacy

The Psoriasis Symptom Diary©, a 16-item patient reported outcome (PRO) measure developed and validated in accordance with the FDA PRO Guidance (FDA Guidance for Industry: Patient-Reported Outcome Measures: Use in Medical Product Development to Support Labeling Claims, 2009), demonstrated favorable psychometric properties and usefulness for treatment efficacy evaluation alongside other measures of disease severity in clinical trials for chronic plaque psoriasis.Weekly averages will be derived for each of the 16 questions of the Psoriasis Diary up to Week 12. A weekly average is the sum of the scored item over the course of the study week divided by the number of days on which the item was completed and will be set to missing if four or more daily assessments were missing of the corresponding question. The range for each question is 0 to 10 with the higher score depicting a more progressed disease state. A reduction in score from baseline shows efficacy

Describes the number of participants tested positive for anti-secukinumab antibodies. It refers to the number of patients who had no positive values at baseline but developed them only after start of active study treatment (AIN457 or etanercept)