A Study to Assess Real-World Use, Safety, and Effectiveness of Oral Upadacitinib in Adult and Adolescent (>=12 Years Old) Participants With Atopic Dermatitis

UPA utilization patterns will be achieved by (i) providing descriptive statistics of patient demographics and disease characteristics for patients who starting UPA 15 mg at baseline and patients who starting UPA 30 mg at baseline, respectively; (ii) calculating number and proportion of patients with different UPA and concomitant therapy changes throughout the observation period, and the rationale for any changes.

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

This includes UPA dose change, temporary or permanent discontinuation, switching, add or remove TCS.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

Worst Pruritus NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

The POEM is a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in both children and adults. Subjects respond to 7 items, including dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping, each scored on a 5-point scale based on frequency over the previous week: 0 = no days, 1 = 1 to 2 days, 2 = 3 to 4 days, 3 = 5 to 6 days, and 4 = all days. Item scores (0 to 4) are added to provide a total score range of 0 to 28. The total score reflects disease-related morbidity, and differentiates between "clear/almost clear" (0-2 points), "mild" (3-7 points), "moderate" (8-16 points), "severe" (17-24 points) and "very severe" (25-28 points) AD. A change in POEM score of 3.4 points is considered the MCID.

The POEM is a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in both children and adults. Subjects respond to 7 items, including dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping, each scored on a 5-point scale based on frequency over the previous week: 0 = no days, 1 = 1 to 2 days, 2 = 3 to 4 days, 3 = 5 to 6 days, and 4 = all days. Item scores (0 to 4) are added to provide a total score range of 0 to 28. The total score reflects disease-related morbidity, and differentiates between "clear/almost clear" (0-2 points), "mild" (3-7 points), "moderate" (8-16 points), "severe" (17-24 points) and "very severe" (25-28 points) AD. A change in POEM score of 3.4 points is considered the MCID

The POEM is a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in both children and adults. Subjects respond to 7 items, including dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping, each scored on a 5-point scale based on frequency over the previous week: 0 = no days, 1 = 1 to 2 days, 2 = 3 to 4 days, 3 = 5 to 6 days, and 4 = all days. Item scores (0 to 4) are added to provide a total score range of 0 to 28. The total score reflects disease-related morbidity, and differentiates between "clear/almost clear" (0-2 points), "mild" (3-7 points), "moderate" (8-16 points), "severe" (17-24 points) and "very severe" (25-28 points) AD. A change in POEM score of 3.4 points is considered the MCID

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

The ADCT is a validated patient self-administered instrument designed to assess AD control status in adult and adolescent patients (12 years and older). Six AD symptoms and impacts are evaluated over the past week including overall severity of symptoms, days with intense episodes of itching, intensity of bother, problem with sleep, impact on daily activities, and impact on mood or emotions. Each item is scored 0-4. The sum of the 6 item scores form the ADCT total score (range 0-24). A higher score indicates lower AD control. A score of ≥7 indicates that the patient is not in control. The threshold for meaningful within-person change is estimated to be 5 points.

The ADCT is a validated patient self-administered instrument designed to assess AD control status in adult and adolescent patients (12 years and older). Six AD symptoms and impacts are evaluated over the past week including overall severity of symptoms, days with intense episodes of itching, intensity of bother, problem with sleep, impact on daily activities, and impact on mood or emotions. Each item is scored 0-4. The sum of the 6 item scores form the ADCT total score (range 0-24). A higher score indicates lower AD control. A score of ≥7 indicates that the patient is not in control. The threshold for meaningful within-person change is estimated to be 5 points.

PGIT-AD is a single item patient self-administered instrument designed to assess patient satisfaction or dissatisfaction with their current treatment for atopic dermatitis based on the following question: "Overall, how satisfied or dissatisfied are you with your current treatment for atopic dermatitis?". Response options range from 1 (extremely dissatisfied) to 7 (extremely satisfied).

Percentage of participants remaining on upadacitinib once daily at all applicable time points.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

The ADCT is a validated patient self-administered instrument designed to assess AD control status in adult and adolescent patients (12 years and older). Six AD symptoms and impacts are evaluated over the past week including overall severity of symptoms, days with intense episodes of itching, intensity of bother, problem with sleep, impact on daily activities, and impact on mood or emotions. Each item is scored 0-4. The sum of the 6 item scores form the ADCT total score (range 0-24). A higher score indicates lower AD control. A score of ≥7 indicates that the patient is not in control. The threshold for meaningful within-person change is estimated to be 5 points.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

The investigator selects the participant's right or left hand as the measuring device. For purposes of clinical estimation, the total surface of the palm plus five digits is assumed to be approximately equivalent to 1%. Measurement of the total area of involvement by the investigator is aided by imagining if scattered plaques were moved so that they were next to each other and then estimating the total area involved. Published score bands: 0% (clear), 0.1-15.9% (mild), 16.0-39.9% (moderate), 40-100% (severe).

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

The POEM is a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in both children and adults. Subjects respond to 7 items, including dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping, each scored on a 5-point scale based on frequency over the previous week: 0 = no days, 1 = 1 to 2 days, 2 = 3 to 4 days, 3 = 5 to 6 days, and 4 = all days. Item scores (0 to 4) are added to provide a total score range of 0 to 28. The total score reflects disease-related morbidity, and differentiates between "clear/almost clear" (0-2 points), "mild" (3-7 points), "moderate" (8-16 points), "severe" (17-24 points) and "very severe" (25-28 points) AD. A change in POEM score of 3.4 points is considered the MCID.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

The ADCT is a validated patient self-administered instrument designed to assess AD control status in adult and adolescent patients (12 years and older). Six AD symptoms and impacts are evaluated over the past week including overall severity of symptoms, days with intense episodes of itching, intensity of bother, problem with sleep, impact on daily activities, and impact on mood or emotions. Each item is scored 0-4. The sum of the 6 item scores form the ADCT total score (range 0-24). A higher score indicates lower AD control. A score of ≥7 indicates that the patient is not in control. The threshold for meaningful within-person change is estimated to be 5 points.

PGIT-AD is a single item patient self-administered instrument designed to assess patient satisfaction or dissatisfaction with their current treatment for atopic dermatitis based on the following question: "Overall, how satisfied or dissatisfied are you with your current treatment for atopic dermatitis?". Response options range from 1 (extremely dissatisfied) to 7 (extremely satisfied).

Participants are asked to provide the number of flares in the previous 6 months, and the average duration of flares in the previous 6 months. Participants are asked if currently experiencing an atopic dermatitis flare. Flare is defined as a sudden worsening of AD requiring treatment escalation and/or additional medical advice.

Participants are asked the number of AD-related physician office visits in the previous 6 months and the number of AD-related hospital visits in the previous 6 months.

The Work Productivity and Activity Impairment Index for Atopic Dermatitis (WPAI-AD) is a validated instrument used to measure loss of productivity at work and impairment in daily activities over the past 7 days. The questionnaire includes four items: absenteeism, presenteeism, overall work impairment, and activity impairment, that range from 0% to 100%, with higher values indicating greater impairment. While absenteeism represents the percentage of work time missed due to AD, presenteeism represents the percentage of impairment while at work due to AD. Overall work impairment represents the total percentage of work time missed due to either absenteeism or presenteeism (since those are mutually exclusive). Activity impairment represents the percentage of impairment during daily activities other than work. The 4 items are all evaluated using an 11-point Likert-type scale from 0 (no effect) to 10 (completely prevented), and the scores are multiplied by ten to arrive at a percentage.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

The POEM is a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in both children and adults. Subjects respond to 7 items, including dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping, each scored on a 5-point scale based on frequency over the previous week: 0 = no days, 1 = 1 to 2 days, 2 = 3 to 4 days, 3 = 5 to 6 days, and 4 = all days. Item scores (0 to 4) are added to provide a total score range of 0 to 28. The total score reflects disease-related morbidity, and differentiates between "clear/almost clear" (0-2 points), "mild" (3-7 points), "moderate" (8-16 points), "severe" (17-24 points) and "very severe" (25-28 points) AD. A change in POEM score of 3.4 points is considered the MCID.

The ADCT is a validated patient self-administered instrument designed to assess AD control status in adult and adolescent patients (12 years and older). Six AD symptoms and impacts are evaluated over the past week including overall severity of symptoms, days with intense episodes of itching, intensity of bother, problem with sleep, impact on daily activities, and impact on mood or emotions. Each item is scored 0-4. The sum of the 6 item scores form the ADCT total score (range 0-24). A higher score indicates lower AD control. A score of ≥7 indicates that the patient is not in control. The threshold for meaningful within-person change is estimated to be 5 points.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

vIGA-AD is a validated assessment instrument used in clinical studies to rate the severity of AD globally. A 5-point scale is used to measure the severity of disease at the time of the investigator's evaluation of the participant ranging from 0 - Clear (no inflammatory signs of atopic dermatitis (no erythema, no induration/papulation, no lichenification, no oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present.) to 4 - Severe (marked erythema (deep or bright red), marked induration/papulation, and/or marked lichenification.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). In addition, the area of AD involvement is assessed as a percentage by body area of head, trunk (including the genital area), upper extremities, and lower extremities (including the buttocks), and converted to a score of 0 to 6. In each body region, the area is expressed as 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), or 6 (90% to 100%). The EASI score ranges from 0-72 points with an MCID of 6.6 points. Published score bands: clear (0), almost clear (0.1-1.0), mild AD (1.1-7.0), moderate AD (7.1-21.0), severe AD (21.1-50.0), very severe AD (50.1-72.0).

DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on health-related quality of life (HRQoL). It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL.

WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours with a higher score denoting worse itch.

EASI is a validated measure used to assess the severity and extent of AD. Four AD disease characteristics (erythema, thickness [induration, papulation, edema], scratching [excoriation], and lichenification) are each assessed for severity by the investigator on a scale of "0" (absent) through "3" (severe). DLQI is a 10-item, validated questionnaire to assess the impact of AD disease symptoms and treatment on HRQoL. It consists of 10 questions assessing impact of skin diseases on different aspects of subject's QoL over the prior week. 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 (0 to 3) are added to provide a total score range of 0 to 30. Higher scores indicate greater impairment of HRQoL. WP-NRS is a validated single self-reported item designed to measure peak pruritus, or 'worst' itch, over the previous 24 hours.