- Change From Baseline in Overall Nail Psoriasis Severity Index (NAPSI) Score [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
NAPSI (matrix + bed score) performed on dorsal views of 8 fingers, excluding thumb; range: 0 to 8. Overall NAPSI score = sum of all fingernail scores; range: 0 to 64. Nails were divided into quadrants and graded for nail matrix and bed psoriasis. Nail Matrix Psoriasis = pitting, leukonychia, red spots in lunula, and/or nail plate crumbling. Nail Bed Psoriasis = onycholysis, splinter hemorrhages, oil drop (salmon patch) discoloration, and/or nail bed hyperkeratosis. Range for both scores: 0 (none), 1 (present 1/4 nail), 2 (present 2/4 nail), 3 (present 3/4 nail), and 4 (present 4/4 nail).
- Percent of Participants Who Achieved a 50% Improvement in the Nail Psoriasis Severity Index (NAPSI) Score for Target Fingernail at Week 12 and Week 24 [ Time Frame: Week 12, Week 24 ] [ Designated as safety issue: No ]
Target fingernail (highest matrix + bed scores at baseline) divided with imaginary lines into quadrants and graded for nail matrix and nail bed psoriasis. Sum of scores = total score for that nail (0-8). Nail Matrix Psoriasis = pitting, leukonychia, red spots in lunula, and/or nail plate crumbling. Nail Bed Psoriasis = onycholysis, splinter hemorrhages, oil drop (salmon patch) discoloration, and/or nail bed hyperkeratosis. Range for both scores 0-8: 0 (none), 1 (present in 1/4 nail), 2 (present in 2/4 nail), 3 (present in 3/4 nail),4 (present in 4/4 nail). Higher score = more severe psoriasis.
- Percent of Participants Who Achieved a 75% Improvement in the Nail Psoriasis Severity Index (NAPSI) Score for Target Fingernail at Week 12 and Week 24 [ Time Frame: Week 12, Week 24 ] [ Designated as safety issue: No ]
Target fingernail (highest matrix + bed scores at baseline) divided with imaginary lines into quadrants and graded for nail matrix and nail bed psoriasis. Sum of scores = total score for that nail (0-8). Nail Matrix Psoriasis = pitting, leukonychia, red spots in lunula, and/or nail plate crumbling. Nail Bed Psoriasis = onycholysis, splinter hemorrhages, oil drop (salmon patch) discoloration, and/or nail bed hyperkeratosis. Range for both scores: 0 (none), 1 (present in 1/4 nail), 2 (present in 2/4 nail), 3 (present in 3/4 nail), 4 (present in 4/4 nail). Higher scores = more severe psoriasis.
- Percent of Participants Who Achieved a 50% Improvement in the Nail Psoriasis Severity Index (NAPSI) for Overall NAPSI Score at Week 12 and Week 24 [ Time Frame: Week 12, Week 24 ] [ Designated as safety issue: No ]
NAPSI (matrix + bed score) performed on dorsal views of 8 fingers, excluding thumb; range: 0 to 8. Overall NAPSI score = sum of all fingernail scores; range: 0 to 64. Nails were divided into quadrants and graded for nail matrix and bed psoriasis. Nail Matrix Psoriasis = pitting, leukonychia, red spots in lunula, and/or nail plate crumbling. Nail Bed Psoriasis = onycholysis, splinter hemorrhages, oil drop (salmon patch) discoloration, and/or nail bed hyperkeratosis. Range for both scores: 0 (none), 1 (present 1/4 nail), 2 (present 2/4 nail), 3 (present 3/4 nail), and 4 (present 4/4 nail).
- Percent of Participants Who Achieved a 75% Improvement in the Nail Psoriasis Severity Index (NAPSI) for Overall NAPSI Score at Week 12 and Week 24 [ Time Frame: Week 12, Week 24 ] [ Designated as safety issue: No ]
NAPSI (matrix + bed score) performed on dorsal views of 8 fingers, excluding thumb; range: 0 to 8. Overall NAPSI score = sum of all fingernail scores; range: 0 to 64. Nails were divided into quadrants and graded for nail matrix and bed psoriasis. Nail Matrix Psoriasis = pitting, leukonychia, red spots in lunula, and/or nail plate crumbling. Nail Bed Psoriasis = onycholysis, splinter hemorrhages, oil drop (salmon patch) discoloration, and/or nail bed hyperkeratosis. Range for both scores: 0 (none), 1 (present 1/4 nail), 2 (present 2/4 nail), 3 (present 3/4 nail), and 4 (present 4/4 nail).
- Change From Baseline in the Psoriasis Area and Severity Index (PASI) Score [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Combined assessment of lesion severity and area affected into single score; range: 0 (no disease) to 72 (maximal disease). Body was divided into 4 sections (head, arms, trunk, legs); each area was scored by itself and scores were combined for final PASI. For each section percent (%) area of skin involved was estimated: 0 (0%) to 6 (90 - 100%), and severity was estimated by clinical signs: erythema, induration, and desquamation; scale: 0 (none) to 4 (maximum). Final PASI = sum of severity parameters for each section * area score * weight of section (head: 0.1, arms: 0.2, body: 0.3, legs: 0.4).
- Percent of Participants Achieving a 50% Improvement in the Psoriasis Area and Severity Index (PASI) Score at Week 12 and Week 24 [ Time Frame: Week 12 , Week 24 ] [ Designated as safety issue: No ]
Combined assessment of lesion severity and area affected into single score; range: 0 (no disease) to 72 (maximal disease). Body was divided into 4 sections (head, arms, trunk, legs); each area was scored by itself and scores were combined for final PASI. For each section percent (%) area of skin involved was estimated: 0 (0%) to 6 (90 - 100%), and severity was estimated by clinical signs: erythema, induration, and desquamation; scale: 0 (none) to 4 (maximum). Final PASI = sum of severity parameters for each section * area score * weight of section (head: 0.1, arms: 0.2, body: 0.3, legs: 0.4).
- Percent of Participants Achieving a 75% Improvement in the Psoriasis Area and Severity Index (PASI) Score at Week 12 and Week 24 [ Time Frame: Week 12 , Week 24 ] [ Designated as safety issue: No ]
Combined assessment of lesion severity and area affected into single score; range: 0 (no disease) to 72 (maximal disease). Body was divided into 4 sections (head, arms, trunk, legs); each area was scored by itself and scores were combined for final PASI. For each section percent (%) area of skin involved was estimated: 0 (0%) to 6 (90 - 100%), and severity was estimated by clinical signs: erythema, induration, and desquamation; scale: 0 (none) to 4 (maximum). Final PASI = sum of severity parameters for each section * area score * weight of section (head: 0.1, arms: 0.2, body: 0.3, legs: 0.4).
- Change From Baseline in Physician Global Assessment (PGA) of Psoriasis [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Physician Global Assessment (PGA) of Psoriasis: score based on dermatologist's assessment of disease averaged over all lesions of head, scalp, and neck. Overall lesions were graded for induration, erythema, and scaling; range: 0 (no evidence) to 5 (severe). The sum of the 3 scores was divided by 3 to obtain a final PGA score. Higher scores indicate greater severity of disease.
- Percent of Participants Achieving a Status on the Physician Global Assessment (PGA) of Psoriasis of Clear or Almost Clear [ Time Frame: Baseline, Week 24 or Early Termination ] [ Designated as safety issue: No ]
Physician Global Assessment (PGA) of Psoriasis: score based on dermatologist's assessment of disease averaged over all lesions of head, scalp, and neck. Overall lesions were graded for induration, erythema, and scaling; range: 0 (no evidence) to 5 (severe). The sum of the 3 scores was divided by 3 to obtain a final PGA score. Higher scores indicate greater severity of disease. Assessment of clear or almost clear = PGA score of 0 (no evidence), or 1 (minimal/faint).
- Percent of Participants Achieving a Status on the Physician Global Assessment (PGA) of Psoriasis of Mild or Better [ Time Frame: Baseline, Week 24 or Early Termination ] [ Designated as safety issue: No ]
Physician Global Assessment (PGA) of Psoriasis: score based on dermatologist's assessment of disease averaged over all lesions of head, scalp, and neck. Overall lesions were graded for induration, erythema, and scaling; range: 0 (no evidence) to 5 (severe). The sum of the 3 scores was divided by 3 to obtain a final PGA score. Higher scores indicate greater severity of disease. Assessment of mild or better = PGA score of ≤ 2 (mild plaque elevation, mild scaling, and light red coloration).
- Change From Baseline in the Dermatology Life Quality Index (DLQI) [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Self-administered questionnaire to measure health-related quality of life (QoL)of adult patients suffering from skin disease; 10 questions concerning patients' perception of impact of their disease over last week encompassing aspects such as symptoms, feelings, daily activities, leisure, work, school, personal relationships and side effects of treatment. Questions scored on a 4-point Likert scale: 0 (not at all/not relevant), 1 (a little), 2 (a lot), and 3 (very much). Scores of individual items (0-3) were added to yield a total score (0-30); higher score = greater impairment of patient's QoL.
- Change From Baseline in Physician Assessment of Nail Psoriasis Activity Visual Analog Scale (VAS) [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Physician global assessment of disease activity using a visual analog scale; range: 0 (no nail disease) to 100 (worst possible nail disease).
- Change From Baseline in Patient Assessment of Nail Psoriasis Activity Visual Analog Scale (VAS) [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Patient global assessment of disease activity using a visual analog scale; range: 0 (no nail disease) to 100 (worst possible nail disease).
- Change From Baseline in Physician Fingernail Grading Assessment Total Score [ Time Frame: Baseline, Week 24 ] [ Designated as safety issue: No ]
Physician assessment of disease activity for each fingernail; range: 0 (no disease), 1 (mild disease, 2 (moderate disease), or 3 (severe disease). Total score range = 0-30.