To detect onset of activity of ixekizumab in participants with moderate-to-severe plaque psoriasis and to document the same using sequential photographic images.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
12
Administered SC
Mount Sinai School of Medicine Dermatology Clinical Trials
New York, New York, United States
Time to at Least a 1 Point Improvement on the Patient's Global Assessment of Disease Severity (PatGA) Score
The PatGA is a patient-administered single-item scale on which participants are asked to rank by selecting a number on a 0 to 5 Numeric Rating Score (NRS) the severity of their psoriasis "today" from 0 (Clear) = no psoriasis to 5 (Severe) = the worst their psoriasis has ever been.
Time frame: Baseline through Week 12
Mean Change From Baseline on Itch Numeric Rating Scale (NRS) Score
The Itch NRS is a patient-administered single-item 11-point horizontal scale anchored at 0 and 10, with 0 representing "no itch" and 10 representing "worst itch imaginable." Overall severity of a participant's itching from psoriasis (Ps) is indicated by circling the number that best describes the worst level of itching in the past 24 hours. Least Square Means (LS means) are from analysis of mixed-effects model for repeated measures (MMRM) and model includes treatment group, baseline value and timepoint.
Time frame: Baseline, Week 12
Mean Change From Baseline on the Dermatology Life Quality Index (DLQI)
The DLQI is a simple, patient-administered, 10-question, validated, quality-of-life questionnaire that covers 6 domains including symptoms and feelings, daily activities, leisure, work and school, personal relationships, and treatment. Response categories include "Not at all," "A little," "A lot," and "Very much," with corresponding scores of 0, 1, 2, and 3 respectively. Questions 3-10 also have an additional response category of "Not relevant" which is scored as "0". For all questions, if unanswered the question is scored as "0". Totals range from 0 to 30 (less to more impairment). LS means are from analysis of MMRM and model includes treatment group, baseline value and timepoint.
Time frame: Baseline, Week 12
Mean Change From Baseline in Percent Body Surface Area (%BSA)
The BSA is the percentage involvement of psoriasis on each participant's body surface on a continuous scale from 0% (no involvement) to 100% (full involvement), in which 1% corresponds to the size of the participant's hand (including the palm, fingers, and thumb). The total BSA affected was the summation of individual regions affected. LS means are from analysis of MMRM and the model includes treatment group, baseline value, visit and treatment-by-visit interaction
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Time frame: Baseline, Week 12
Mean Change From Baseline on the Psoriasis Area and Severity Index (PASI)
The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 75 were defined as having an improvement of at least 75% in PASI scores compared to baseline. LS means are from analysis of MMRM and the model includes treatment group, baseline value, visit and treatment-by-visit interaction.
Time frame: Baseline, Week 12
Time to at Least a 2 Point Improvement on the PatGA Score
The PatGA is a patient-administered single-item scale on which participants are asked to rank by selecting a number on a 0 to 5 NRS the severity of their psoriasis "today" from 0 (Clear) = no psoriasis to 5 (Severe) = the worst their psoriasis has ever been.
Time frame: Baseline though Week 12