PASI score is an average degree of severity of signs in head [H], trunk [T], upper limbs [U] and lower limbs [L], assessed separately for erythema [E], thickening (plaque elevation, induration) [I], and scaling (desquamation) [D]. Area [A] covered by lesions on each body region was estimated as a percentage (%) of total area of that particular body region and was assigned a score of 0=0%; 1=1-9%; 2=10-29%; 3=30-49%; 4=50-69%; 5=70-89%; 6=90-100%. The head and neck, upper limbs, trunk and lower limbs correspond to approximately 10%, 20%, 30% and 40% of the body surface area, respectively. PASI score was calculated as: PASI = 0.1(EH+IH+DH) AH + 0.2(EU+IU+DU) AU + 0.3(ET+IT+DT) AT + 0.4(EL+IL+DL) AL. PASI scores can range from 0 (no signs) to a maximum of 72.0. PASI 75 responders were participants who achieved >=75% improvement (reduction) in PASI score compared to baseline.

The analysis was performed in Full analysis set (FAS) population, defined as all randomized participants who received at least one dose of study drug.

PASI score is an average degree of severity of signs in head [H], trunk [T], upper limbs [U] and lower limbs [L], assessed separately for erythema [E], thickening (plaque elevation, induration) [I], and scaling (desquamation) [D]. Area [A] covered by lesions on each body region was estimated as a percentage (%) of total area of that particular body region and was assigned a score of 0=0%; 1=1-9%; 2=10-29%; 3=30-49%; 4=50-69%; 5=70-89%; 6=90-100%. The head and neck, upper limbs, trunk and lower limbs correspond to approximately 10%, 20%, 30% and 40% of the body surface area, respectively. PASI score was calculated as: PASI = 0.1(EH+IH+DH) AH + 0.2(EU+IU+DU) AU + 0.3(ET+IT+DT) AT + 0.4(EL+IL+DL) AL. PASI scores can range from 0 (no signs) to a maximum of 72.0. PASI 50 responders were participants who achieved >=50% improvement (reduction) in PASI score compared to baseline.

The analysis was performed in FAS population. Here 'number analyzed' signifies participants evaluable for PASI 50 at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

PASI score is an average degree of severity of signs in head [H], trunk [T], upper limbs [U] and lower limbs [L], assessed separately for erythema [E], thickening (plaque elevation, induration) [I], and scaling (desquamation) [D]. Area [A] covered by lesions on each body region was estimated as a percentage (%) of total area of that particular body region and was assigned a score of 0=0%; 1=1-9%; 2=10-29%; 3=30-49%; 4=50-69%; 5=70-89%; 6=90-100%. The head and neck, upper limbs, trunk and lower limbs correspond to approximately 10%, 20%, 30% and 40% of the body surface area, respectively. PASI score was calculated as: PASI = 0.1(EH+IH+DH) AH + 0.2(EU+IU+DU) AU + 0.3(ET+IT+DT) AT + 0.4(EL+IL+DL) AL. PASI scores can range from 0 (no signs) to a maximum of 72.0. PASI 75 responders were participants who achieved >=75% improvement (reduction) in PASI score compared to baseline.

The analysis was performed in FAS population. Here 'number analyzed' signifies participants evaluable for PASI 75 at week 1, 2, 3, 4, 6, 8, 12, 16 and 20.

PASI score is an average degree of severity of signs in head [H], trunk [T], upper limbs [U] and lower limbs [L], assessed separately for erythema [E], thickening (plaque elevation, induration) [I], and scaling (desquamation) [D]. Area [A] covered by lesions on each body region was estimated as a percentage (%) of total area of that particular body region and was assigned a score of 0=0%; 1=1-9%; 2=10-29%; 3=30-49%; 4=50-69%; 5=70-89%; 6=90-100%. The head and neck, upper limbs, trunk and lower limbs correspond to approximately 10%, 20%, 30% and 40% of the body surface area, respectively. PASI score was calculated as: PASI = 0.1(EH+IH+DH) AH + 0.2(EU+IU+DU) AU + 0.3(ET+IT+DT) AT + 0.4(EL+IL+DL) AL. PASI scores can range from 0 (no signs) to a maximum of 72.0. PASI 90 responders were participants who achieved >=90% improvement (reduction) in PASI score compared to baseline.

The analysis was performed in FAS population. Here 'number analyzed' signifies participants evaluable for PASI 90 at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

PASI score is an average degree of severity of signs in head [H], trunk [T], upper limbs [U] and lower limbs [L], assessed separately for erythema [E], thickening (plaque elevation, induration) [I], and scaling (desquamation) [D]. Area [A] covered by lesions on each body region was estimated as a percentage (%) of total area of that particular body region and was assigned a score of 0=0%; 1=1-9%; 2=10-29%; 3=30-49%; 4=50-69%; 5=70-89%; 6=90-100%. The head and neck, upper limbs, trunk and lower limbs correspond to approximately 10%, 20%, 30% and 40% of the body surface area, respectively. PASI score was calculated as: PASI = 0.1(EH+IH+DH) AH + 0.2(EU+IU+DU) AU + 0.3(ET+IT+DT) AT + 0.4(EL+IL+DL) AL. PASI scores can range from 0 (no signs) to a maximum of 72.0. PASI 100 responders were participants who achieved complete clearance of psoriasis (PASI=0).

The analysis was performed in FAS population. Here 'number analyzed' signifies participants evaluable for PASI 100 at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

The Body surface area (BSA) affected by plaque-type psoriasis was the total of percentages of areas affected, including head, trunk, upper limbs and lower limbs. Each reported percentage was multiplied by its respective body region corresponding factor (head = 0.1, trunk = 0.3, upper limbs = 0.2, lower limbs = 0.4). The resulting four percentages were added to estimate the total BSA affected by plaque-type psoriasis.

The analysis was performed in FAS population. Here 'number analyzed' signifies participants evaluable for BSA at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

NAPSI was used to assess psoriatic nail involvement in participants with nail psoriasis. NAPSI score was calculated as total of nail matrix and nail bed score, ranging from 0-8 per nail. Total NAPSI score ranges from 0 to 80 for all fingernails. Each nail was divided with imaginary horizontal and longitudinal lines into quadrants. Each nail was given a score of 0 - 4 for nail matrix and nail bed psoriasis 0-4 (0: for none, 1: for 1 quadrant, 2: for 2 quadrants, 3: for 3 quadrants, 4: for all 4 quadrants), based on presence of any feature of nail psoriasis in that quadrant. Nail matrix psoriasis feature includes: pitting, leukonychia red spots in lunula, crumbling. Nail bed psoriasis feature includes: onycholysis, splinter hemorrhages, subungual hyperkeratosis, "oil drop" (salmon patch dyschroma). NPASI 50 responders were participants who achieved >=50% improvement (reduction) in NPASI score compared to baseline.

The analysis was performed on FAS population. Here 'number analyzed' signifies participants evaluable for NAPSI 50 at week 1, 2, 3, 4, 5, 6, 7,12,16, 20 and 24.

NAPSI was used to assess psoriatic nail involvement in participants with nail psoriasis. NAPSI score was calculated as total of nail matrix and nail bed score, ranging from 0-8 per nail. Total NAPSI score ranges from 0 to 80 for all fingernails. Each nail was divided with imaginary horizontal and longitudinal lines into quadrants. Each nail was given a score of 0 - 4 for nail matrix and nail bed psoriasis 0-4 (0: for none, 1: for 1 quadrant, 2: for 2 quadrants, 3: for 3 quadrants, 4: for all 4 quadrants), based on presence of any feature of nail psoriasis in that quadrant. Nail matrix psoriasis feature includes: pitting, leukonychia red spots in lunula, crumbling. Nail bed psoriasis feature includes: onycholysis, splinter hemorrhages, subungual hyperkeratosis, "oil drop" (salmon patch dyschroma). NPASI 75 responders were participants who achieved >=75% improvement (reduction) in NPASI score compared to baseline.

The analysis was performed on FAS population. Here 'number analyzed' signifies participants evaluable for NAPSI 75 at week 1, 2, 3, 4, 5, 6, 8,12,16, 20 and 24.

NAPSI was used to assess psoriatic nail involvement in participants with nail psoriasis. NAPSI score was calculated as total of nail matrix and nail bed score, ranging from 0-8 per nail. Total NAPSI score ranges from 0 to 80 for all fingernails. Each nail was divided with imaginary horizontal and longitudinal lines into quadrants. Each nail was given a score of 0 - 4 for nail matrix and nail bed psoriasis 0-4 (0: for none, 1: for 1 quadrant, 2: for 2 quadrants, 3: for 3 quadrants, 4: for all 4 quadrants), based on presence of any feature of nail psoriasis in that quadrant. Nail matrix psoriasis feature includes: pitting, leukonychia red spots in lunula, crumbling. Nail bed psoriasis feature includes: onycholysis, splinter hemorrhages, subungual hyperkeratosis, "oil drop" (salmon patch dyschroma). NPASI 90 responders were participants who achieved >=90% improvement (reduction) in NPASI score compared to baseline.

The analysis was performed on FAS population. Here 'number analyzed' signifies the participants evaluable for NAPSI 90 response at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

NAPSI was used to assess psoriatic nail involvement in participants with nail psoriasis. NAPSI score was calculated as total of nail matrix and nail bed score, ranging from 0-8 per nail. Total NAPSI score ranges from 0 to 80 for all fingernails. Each nail was divided with imaginary horizontal and longitudinal lines into quadrants. Each nail was given a score of 0 - 4 for nail matrix and nail bed psoriasis 0-4 (0: for none, 1: for 1 quadrant, 2: for 2 quadrants, 3: for 3 quadrants, 4: for all 4 quadrants), based on presence of any feature of nail psoriasis in that quadrant. Nail matrix psoriasis feature includes: pitting, leukonychia red spots in lunula, crumbling. Nail bed psoriasis feature includes: onycholysis, splinter hemorrhages, subungual hyperkeratosis, "oil drop" (salmon patch dyschroma). NPASI 100 responders were participants who PASI 100 responders were participants who achieved complete clearance of psoriasis.

The analysis was performed on FAS population. Here 'number analyzed' signifies the participants evaluable for NAPSI 100 response at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

IGA mod 2011 is a global static severity rating scale referring exclusively to the participant's disease state at the time of the assessments and don't attempt comparison with participant's any previous disease states at baseline or visit. IGA mod 2011 has a scale of 0-4 with the lower scores correlating to better performance. Scores used were: 0/Clear: no signs of psoriasis, Post-inflammatory hyperpigmentation may be present; 1/almost clear: Normal to pink coloration of lesions/no thickening/no to minimal focal scaling; 2/Mild: Pink to light red coloration/just detectable to mild thickening/predominantly fine scaling; 3/Moderate: Dull bright red, clearly distinguishable erythema/clearly distinguishable to moderate thickening/moderate scaling; 4/Severe: Bright to deep dark red coloration/severe thickening with hard edges/severe or coarse scaling covering almost all or all lesions.

The analysis was performed in FAS population. Here 'number analyzed' signifies the participants evaluable for IGA mod 2011 at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

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. IGA 0/1 responders: who achieved score of 0/1 and improved by at least 2 points on the IGA scale compared to baseline.

The analysis was performed on FAS population.

DLQI is a 10-item general dermatology disability index designed to assess health-related quality of life in adult subjects with skin diseases such as eczema, psoriasis, acne, and viral. The measure was self-administered and included domains of daily activities, leisure, personal relationships, symptoms and feelings, treatment, and work/school. Each item had four response categories ranging from 0 (not at all) to 3 (very much). "Not relevant" was also a valid response and was scored as 0. The DLQI total score was a sum of the 10 questions. Scores ranged from 0 to 30, with higher scores indicating greater impairment in health related quality of life.

The analysis was performed on FAS population. Here 'number analyzed' signifies the participants evaluable for DLQI at week 1, 2, 3, 4, 6, 8, 12, 16, 20 and 24.

DLQI is a 10-item general dermatology disability index designed to assess health-related quality of life in adult subjects with skin diseases such as eczema, psoriasis, acne, and viral. The measure was self-administered and included domains of daily activities, leisure, personal relationships, symptoms and feelings, treatment, and work/school. Each item had four response categories ranging from 0 (not at all) to 3 (very much). "Not relevant" was also a valid response and was scored as 0. The DLQI total score was a sum of the 10 questions. Scores ranged from 0 to 30, with higher scores indicating greater impairment in health related quality of life. DLQI 0/1 response was the achievement of a DLQI score of 0 or 1.

The analysis was performed on FAS population.

SF-36 is a generic indicator of health status for use in population surveys and evaluative studies of health policy. The SF-36 included 36 items in a Likert-type or forced-choice format measured on eight dimensions. The scores for each domain range from 0 to 100, with high scores indicating a better status. SF-36 responder is defined as subject reaching at least an improvement of minimum important difference (MID). The SF-36 measure dimensions and their MID includes:

• Physical Functioning:4.3
• Role-Physical: 3.4
• Bodily Pain: 6.2
• General Health: 7.2
• Vitality: 6.2
• Social Functioning: 6.9
• Role-Emotional: 4.5
• Mental Health: 6.2

Two component scores and their MID which were derived from the above mentioned 8 domains includes-:

• Physical component summary: 3.4
• Mental component summary: 4.6

The analysis was performed on FAS population. Here 'number analyzed' signifies the participants evaluable for SF-36 response at week 4, 16 and 24