Percentage of Participants Who Achieved a 75% Reduction in EASI Score (EASI 75) at Week 16
EASI is a tool to measure the extent and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the percentage of skin affected, and the severity of eczema (scored as none [0], mild [1], moderate [2], or severe [3]) for redness, thickness, scratching, and lichenification are assessed. The EASI score is the sum of the scores for each region and ranges from 0 to 72, where higher scores represent worse disease.
An EASI 75 response is defined as participants with at least a 75% reduction (improvement) in EASI score relative to the Baseline value.
Participants with missing values at Week 16 were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Achieving an Investigator Global Assessment (IGA) of "0" or "1" at Week 16
The Investigator's Global Assessment for Atopic Dermatitis (IGA) was scored on the following scale:
0: Clear (No inflammatory signs of atopic dermatitis)
1: Almost Clear (Just perceptible erythema and just perceptible papulation/infiltration)
2: Mild (Mild erythema and mild papulation/infiltration)
3: Moderate (Moderate erythema and moderate papulation/infiltration)
4: Severe (Severe erythema and severe papulation/infiltration with or without oozing/crusting)
The percentage of participants with a score of 0 or 1 at Week 16 is reported.
Percent Change From Baseline to Weeks 2, 8, and 16 in Pruritus Numerical Rating Scale (NRS)
Participants were asked to rate pruritus (itch) in the past 24 hours on a daily basis using a scale from 0 to 10, with 0 being no itch and 10 being the worst imaginable itch. The percent change from Baseline at each week was calculated from a rolling weekly average.
Percent Change From Baseline in EASI Score at Week 8
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.
Percent Change From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Weeks 8 and 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 negative change from Baseline indicates improvement.
Percentage of Participants Who Achieved an EASI 75 Response at Week 8
EASI is a tool to measure the extent and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the percentage of skin affected, and the severity of eczema (scored as none [0], mild [1], moderate [2], or severe [3]) for redness, thickness, scratching, and lichenification are assessed. The EASI score is the sum of the scores for each region and ranges from 0 to 72, where higher scores represent worse disease.
An EASI 75 response is defined as participants with at least a 75% reduction (improvement) in EASI score relative to the Baseline value.
Participants with missing values at Week 8 were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Who Achieved an EASI 50 Response at Weeks 8 and 16
EASI is a tool to measure the extent and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the percentage of skin affected, and the severity of eczema (scored as none [0], mild [1], moderate [2], or severe [3]) for redness, thickness, scratching, and lichenification are assessed. The EASI score is the sum of the scores for each region and ranges from 0 to 72, where higher scores represent worse disease.
An EASI 50 response is defined as participants with at least a 50% reduction (improvement) in EASI score relative to the Baseline value.
Participants with missing values at each time point were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Who Achieved an EASI 90 Response at Weeks 8 and 16
EASI is a tool to measure the extent and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the percentage of skin affected, and the severity of eczema (scored as none [0], mild [1], moderate [2], or severe [3]) for redness, thickness, scratching, and lichenification are assessed. The EASI score is the sum of the scores for each region and ranges from 0 to 72, where higher scores represent worse disease.
An EASI 90 response is defined as participants with at least a 90% reduction (improvement) in EASI score relative to the Baseline value.
Participants with missing values at each time point were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Who Achieved a SCORAD 50 Response at Weeks 8 and 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 50 response is defined as participants with at least a 50% reduction (improvement) in SCORAD score relative to the Baseline value.
Participants with missing values were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Who Achieved a SCORAD 75 Response at Weeks 8 and 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 participants with at least a 75% reduction (improvement) in SCORAD score relative to the Baseline value.
Participants with missing values were counted as non-responders in this analysis (non-responder imputation).
Percentage of Participants Who Achieved a SCORAD 90 Response at Weeks 8 and 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 participants with at least a 90% reduction (improvement) in SCORAD score relative to the Baseline value.
Participants with missing values were counted as non-responders in this analysis (non-responder imputation).
Percent Change From Re-randomization (Week 16) in EASI Score in Period 2
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 to Loss of EASI 50 Response Relative to Baseline Among Participants Re-randomized as EASI 75 Responders at Week 16
Time to loss of EASI 50 response in Period 2 relative to Baseline among those who were re-randomized as EASI 75 responders at Week 16.
Time to loss of EASI 50 response was measured from Week 16 to the date of the first assessment in Period 2 where a participant's EASI score was higher than 50% of their Baseline score.
Participants with no loss of response were censored at their last treatment visit or the start of rescue treatment, whichever occurred first.
Percentage of Participants With an EASI 75 Response in Period 2 in Participants Who Were Re-randomized as EASI 75 Non-responders at Week 16
EASI is a tool to measure the extent and severity of atopic eczema based on assessments of the head/neck, trunk, upper limbs and lower limbs. For each region the percentage of skin affected, and the severity of eczema (scored as none [0], mild [1], moderate [2], or severe [3]) for redness, thickness, scratching, and lichenification are assessed. The EASI score is the sum of the scores for each region and ranges from 0 to 72, where higher scores represent worse disease.
An EASI 75 response is defined as at least a 75% reduction (improvement) in EASI score relative to the Baseline value, and was analyzed in participants who were re-randomized at Week 16 and were EASI 75 non-responders at Week 16.
Percentage of Participants Who Achieved a Dermatology Life Quality Index (DLQI) of "0" or "1" at Weeks 8 and 16
The DLQI is a 10-item questionnaire that asks participants to evaluate the degree that psoriasis has affected their quality of life in the last week in the following 6 aspects: symptoms and feelings, daily activities, leisure, work or school activities, personal relationships and treatment related feelings. Participants answer the 10 questions on a scale from 0 (not at all) to 3 (very much). The DLQI is calculated by summing the scores of the 10 questions, resulting in a maximum of 30 and a minimum of 0 with higher scores indicating more impaired quality of life. A score of 0 or 1 means that the disease has no effect at all.
Dermatology Life Quality Index outcomes were defined but are not reported because of an error in the programming of the electronic device used to administer the questionnaire that precluded determination of these outcomes.
Change From Baseline in DLQI at Weeks 8 and 16
The DLQI is a 10-item questionnaire that asks participants to evaluate the degree that psoriasis has affected their quality of life in the last week in the following 6 aspects: symptoms and feelings, daily activities, leisure, work or school activities, personal relationships and treatment related feelings. Participants answer the 10 questions on a scale from 0 (not at all) to 3 (very much). The DLQI is calculated by summing the scores of the 10 questions, resulting in a maximum of 30 and a minimum of 0 with higher scores indicating more impaired quality of life. A negative change from Baseline indicates improvement.
Dermatology Life Quality Index outcomes were defined but are not reported because of an error in the programming of the electronic device used to administer the questionnaire that precluded determination of these outcomes.
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.
Last observation carried forward imputation was used.
Percentage of Participants With Reduction of ≥ 4 Points From Baseline in Pruritus NRS at Week 16
Participants were asked to rate pruritus (itch) in the past 24 hours on a daily basis using a scale from 0 to 10, with 0 being no itch and 10 being the worst imaginable itch. The percentage of participants with reduction of ≥ 4 points from Baseline in pruritus NRS was assessed in participants with a baseline pruritus NRS of ≥ 4. Participants with missing values at Week 16 were counted as non-responders in this analysis (non-responder imputation).