The purpose of this study is to assess the safety and efficacy of risankizumab for the treatment of moderate to severe atopic dermatitis (AD) in adults and adolescents.
This study includes a screening period of up to 35 days, a 16-week double-blind treatment period (Period A), and a 36-week double-blind treatment period (Period B). Participants who meet eligibility criteria will be randomized at Baseline in a 2:2:1 ratio to one of 3 treatment groups: (1) risankizumab 150 mg, (2) risankizumab 300 mg, or (3) matching placebo. Randomization will be stratified by Baseline disease severity (Validated Investigator Global Assessment scale for Atopic Dermatitis \[vIGA-AD\] score of moderate \[3\] versus severe \[4\]) and geographic region (Japan versus rest of world). At Week 16, participants in the placebo group will be re-randomized in a 1:1 ratio to receive either risankizumab 150 mg or 300 mg for the remainder of the study. Participants originally randomized to the risankizumab 150 mg or 300 mg arms will stay on their previously-assigned treatment through the end of the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
172
subcutaneous (SC) injection
subcutaneous (SC) injection
Percentage of Participants Achieving At Least a 75% Reduction From Baseline in Eczema Area and Severity Index (EASI 75) at Week 16
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease.
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved a vIGA-AD Score of "0" or "1" With a Reduction From Baseline of ≥ 2 Points at Week 16
Validated Investigator Global Assessment scale for Atopic Dermatitis (vIGA-AD) was used to assess the severity of AD based on lesion appearance on the following scale: * 0 - Clear: No signs of AD; * 1 - Almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; * 2 - Mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; * 3 - Moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, possible oozing or crusting; * 4 - Severe: Marked erythema, induration/papulation and/or lichenification; possible oozing or crusting.
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved a Reduction of ≥ 4 Points in Worst Pruritus Numerical Rating Scale (NRS) Score From Baseline to Week 16
Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on an 11-point scale from 0 (no itch) to 10 (worst imaginable itch).
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UAB Department of Dermatology /ID# 211561
Birmingham, Alabama, United States
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Scottsdale, Arizona, United States
Cosmetic Dermatology of Orange County /ID# 205801
Anaheim, California, United States
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Fremont, California, United States
Integrative Skin Science and Research /ID# 212486
Sacramento, California, United States
Cosmetic Laser Dermatology /ID# 210560
San Diego, California, United States
Therapeutics Clinical Research /ID# 203422
San Diego, California, United States
Colorado Center for Dermatology, PLLC /ID# 216260
Centennial, Colorado, United States
Park Avenue Dermatology, PA /ID# 203378
Orange Park, Florida, United States
MetroDerm ACC Research /ID# 205958
Atlanta, Georgia, United States
...and 55 more locations
Time frame: Baseline and Week 16
Percent Change From Baseline in EASI Score at Week 16
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease; a negative change from Baseline indicates improvement.
Time frame: Baseline and Week 16
Percent Change From Baseline in EASI Score at Week 28 and Week 52
EASI is used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected and the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling), scratching, and lichenification (lined skin, prurigo nodules). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease; a negative change from Baseline indicates improvement. LS means were calculated from an analysis of covariance (ANCOVA) model with Baseline, treatment and vIGA-AD categories in the model.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved an EASI 75 Response at Week 28 and Week 52
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved an EASI 50 Response at Week 16
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease. EASI 50 response is defined as at least a 50% reduction (improvement) from Baseline in EASI score.
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved an EASI 50 Response at Week 28 and Week 52
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease. An EASI 50 response is defined as at least a 50% reduction (improvement) from Baseline in EASI score.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved an EASI 90 Response at Week 16
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease. An EASI 90 response is defined as at least a 90% reduction (improvement) from Baseline in EASI score.
Time frame: Baseline, Week 16
Percentage of Participants Who Achieved an EASI 90 Response at Week 28 and Week 52
EASI is a tool used to measure the extent (area) and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the area score is recorded as the percentage of skin affected by eczema. For each region, the severity score is calculated as the sum of the intensity scores (scored as none \[0\], mild \[1\], moderate \[2\], or severe \[3\]) for redness (erythema, inflammation), thickness (induration, papulation, swelling - acute eczema), scratching (excoriation), and lichenification (lined skin, prurigo nodules - chronic eczema). The total EASI score for each region is calculated by multiplying the severity score by the area score, with adjustment for the proportion of the body region to the whole body. The final EASI score is the sum of the 4 region scores and ranges from 0 to 72 where higher scores represent worse disease. An EASI 90 response is defined as at least a 90% reduction (improvement) from Baseline in EASI score.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a vIGA-AD Score of "0" or "1" With a Reduction From Baseline of ≥ 2 Points at Week 28 and Week 52
Validated Investigator Global Assessment scale for Atopic Dermatitis (vIGA-AD) was used to assess the severity of AD based on lesion appearance on the following scale: * 0 - Clear: No signs of AD; * 1 - Almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; * 2 - Mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; * 3 - Moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, possible oozing or crusting; * 4 - Severe: Marked erythema, induration/papulation and/or lichenification; possible oozing or crusting.
Time frame: Baseline and Weeks 28 and 52
Change From Baseline in Percentage of Body Surface Area (BSA) Affected by Atopic Dermatitis at Week 16
Body surface area (BSA) affected by atopic dermatitis was assessed by the physician and is expressed as a percentage of the total BSA. For purposes of the estimation, the total surface of the participant's palm plus five digits was assumed to be approximately equivalent to 1% BSA. A negative change from Baseline indicates improvement.
Time frame: Baseline and Week 16
Change From Baseline in Percentage of BSA Affected by Atopic Dermatitis at Weeks 28 and 52
Body surface area (BSA) affected by atopic dermatitis was assessed by the physician and is expressed as a percentage of the total BSA. For purposes of the estimation, the total surface of the participant's palm plus five digits was assumed to be approximately equivalent to 1% BSA. A negative change from Baseline indicates improvement. LS means and standard errors were calculated from ANCOVA with Baseline, treatment and stratum (Baseline vIGA-AD categories) in the model.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a 50% Improvement in SCORing Atopic Dermatitis (SCORAD) Score (SCORAD 50) at Week 16
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst).
Time frame: Baseline, Week 16
Percentage of Participants Who Achieved a SCORAD 50 Response at Week 28 and Week 52
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst).
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a SCORAD 75 Response at Week 16
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst). A SCORAD 75 response is defined as at least a 75% reduction (improvement) from Baseline in SCORAD score.
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved a SCORAD 75 Response at Week 28 and Week 52
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst). A SCORAD 75 response is defined as at least a 75% reduction (improvement) from Baseline in SCORAD score.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a SCORAD 90 Response at Week 16
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst). A SCORAD 90 response is defined as at least a 90% reduction (improvement) from Baseline in SCORAD score.
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved a SCORAD 90 Response at Week 28 and Week 52
SCORAD is a clinical tool used to assess the extent and severity of eczema (SCORing Atopic Dermatitis). The extent is assessed using the rule of 9 to calculate the affected area (A) as a percentage of the whole body (0-100%). The intensity part of the SCORAD (B) consists of 6 items: erythema, oedema/papulation, excoriations, lichenification, oozing/crusts and dryness, each graded on a scale from 0 (none) to 3 (severe), for a total score of 0 to 18. Subjective items (C) include daily pruritus and sleeplessness, each scored on a visual analogue scale (VAS) from 0 to 10 (total score 0-20). SCORAD is calculated as A/5 + 7B/2 + C, and ranges from 0 to 103 (worst). A SCORAD 90 response is defined as at least a 90% reduction (improvement) from Baseline in SCORAD score.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a Dermatology Life Quality Index (DLQI) Score of "0" or "1" at Week 16
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A score of 0 or 1 means that the disease has no effect at all.
Time frame: Week 16
Percentage of Participants Who Achieved a DLQI Score of "0" or "1" at Week 28 and Week 52
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A score of 0 or 1 means that the disease has no effect at all.
Time frame: Weeks 28 and 52
Percentage of Participants Who Achieved a Children's Dermatology Life Quality Index (CDLQI) Score of "0" or "1" at Week 16
The CDLQI is a 10-item, validated questionnaire used to assess the impact of AD disease symptoms and treatment on QoL. The CDLQI has been validated for use in individuals 4-16 years old. It consists of 10 questions assessing impact of skin diseases on different aspects of a patient's QoL over the prior week. The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item is scored on a 4-point scale (0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much). Item scores (0 to 3) are added to provide a total score range of 0 to 30; higher scores indicate greater impairment of QoL. A score of 0 or 1 means that the disease has no effect at all. In this study, the CDLQI was administered to participants who were \< 16 years old at Baseline.
Time frame: Week 16
Percentage of Participants Who Achieved a CDLQI Score of "0" or "1" at Week 28 and Week 52
The CDLQI is a 10-item, validated questionnaire used to assess the impact of AD disease symptoms and treatment on QoL. The CDLQI has been validated for use in individuals 4-16 years old. It consists of 10 questions assessing impact of skin diseases on different aspects of a patient's QoL over the prior week. The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item is scored on a 4-point scale (0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much). Item scores (0 to 3) are added to provide a total score range of 0 to 30; higher scores indicate greater impairment of QoL. A score of 0 or 1 means that the disease has no effect at all. In this study, the CDLQI was administered to participants who were \< 16 years old at Baseline.
Time frame: Weeks 28 and 52
Percentage of Participants Who Achieved a Reduction in DLQI of ≥ 4 Points From Baseline at Week 16 Among Those With a DLQI ≥ 4 at Baseline
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A change in DLQI score of at least 4 points is considered the minimum clinically important difference (MCID).
Time frame: Baseline and Week 16
Percentage of Participants Who Achieved a Reduction in DLQI of ≥ 4 Points From Baseline at Week 28 and Week 52 Among Those With a DLQI ≥ 4 at Baseline
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A change in DLQI score of at least 4 points is considered the minimum clinically important difference (MCID).
Time frame: Baseline and Weeks 28 and 52
Change From Baseline in DLQI Score at Week 16
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A negative change from Baseline indicates improvement.
Time frame: Baseline and Week 16
Change From Baseline in DLQI Score at Week 28 and Week 52
The DLQI is a 10-item validated questionnaire used to assess the impact of AD disease symptoms and treatment on quality of life (QoL). It consists of 10 questions evaluating impact of skin diseases on different aspects of a participant's QoL over the prior week, including symptoms and feelings, daily activities, leisure, work or school, personal relationships, and the side effects of treatment. Each item is scored on a 4-point scale (0 = not at all/not relevant; 1 = a little; 2 = a lot; and 3 = very much). Item scores are added to provide a total score, ranging from 0 to 30, with higher scores indicating greater impairment of QoL. A negative change from Baseline indicates improvement. LS means and standard errors were calculated from an ANCOVA model with Baseline, treatment and stratum (Baseline vIGA-AD categories) in the model.
Time frame: Baseline and Weeks 28 and 52
Change From Baseline in CDLQI Score at Week 16
The CDLQI is a 10-item, validated questionnaire used to assess the impact of AD disease symptoms and treatment on QoL. The CDLQI has been validated for use in individuals 4-16 years old. It consists of 10 questions assessing impact of skin diseases on different aspects of a patient's QoL over the prior week. The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item is scored on a 4-point scale (0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much). Item scores (0 to 3) are added to provide a total score range of 0 to 30; higher scores indicate greater impairment of QoL. A negative change from Baseline indicates improvement. In this study, the CDLQI was administered to participants who were \< 16 years old at the Baseline visit.
Time frame: Baseline and Week 16
Change From Baseline in CDLQI Score at Week 28 and Week 52
The CDLQI is a 10-item, validated questionnaire used to assess the impact of AD disease symptoms and treatment on QoL. The CDLQI has been validated for use in individuals 4-16 years old. It consists of 10 questions assessing impact of skin diseases on different aspects of a patient's QoL over the prior week. The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item is scored on a 4-point scale (0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much). Item scores (0 to 3) are added to provide a total score range of 0 to 30; higher scores indicate greater impairment of QoL. A negative change from Baseline indicates improvement. In this study, the CDLQI was administered to participants who were \< 16 years old at the Baseline visit. LS means were calculated from ANCOVA with Baseline and treatment in the model.
Time frame: Baseline and Weeks 28 and 52
Change From Baseline in Worst Pruritus Numerical Rating Scale at Week 16
Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Change from Baseline was calculated from a rolling weekly average. A negative change from Baseline indicates improvement.
Time frame: Baseline and Week 16
Change From Baseline in Worst Pruritus NRS Score at Week 28 and Week 52
Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Change from Baseline was calculated from a rolling weekly average. A negative change from Baseline indicates improvement. LS means and standard errors were calculated from an ANCOVA with Baseline, treatment and stratum (Baseline vIGA-AD categories) in the model.
Time frame: Baseline and Weeks 28 and 52
Percentage of Participants Who Achieved a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS Score at Week 28 and Week 52
Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on an 11-point scale from 0 (no itch) to 10 (worst imaginable itch).
Time frame: Baseline and Weeks 28 and 52