A Study to Evaluate Upadacitinib in Combination With Topical Corticosteroids in Adolescent and Adult Participants With Moderate to Severe Atopic Dermatitis

Study Overview
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Brief Summary
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The objective of this study is to assess the efficacy and safety of upadacitinib combined with topical corticosteroids (TCS) for the treatment of adolescent and adult participants with moderate to severe atopic dermatitis (AD) who are candidates for systemic therapy.

Detailed Description
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This study includes a 35-day screening period, a 16-week double-blind period, a blinded extension period up to Week 260, a blinded Long-term Extension (LTE) Period after Week 260 to Week 524, and a 30-day follow-up visit. Participants who meet eligibility criteria in the Main Study will be randomly assigned in a 1:1:1 ratio to receive upadacitinib 15 mg, upadacitinib 30 mg, or placebo once daily, in combination with topical corticosteroids. Upon completion of enrollment of 810 participants in the Main Study, a supplemental study will continue to enroll adolescent participants (Adolescent Sub-study) until a total of 180 adolescent participants are enrolled in the overall study (Main Study + Adolescent Sub-study). Approximately 1000 participants from M16-045 or M18-891 and approximately 500 participants from M16-047 will have the opportunity to enroll into the blinded Long-Term Extension (LTE) period (Week 260 - Week 524) after reaching Week 260 in their respective studies. Randomization for the Main Study will be stratified by Baseline disease severity (validated Investigator Global Assessment Scale for Atopic Dermatitis [vIGA-AD] score of moderate [3] versus severe [4]), by geographic region (US/Puerto Rico/Canada, Japan, China, and Other), and by age (adolescent [ages 12 to 17] versus adult [ages 18 to 75]). The separate randomization for the Adolescent Sub-study will be stratified by Baseline disease severity (moderate [vIGA-AD 3] versus severe [vIGA-AD 4]) and by geographic region (US/Puerto Rico/Canada and Other). At Week 16 of both the Main Study and the Adolescent Sub-study, participants in the placebo group will be re-randomized in a 1:1 ratio to receive daily oral doses of upadacitinib 30 mg or upadacitinib 15 mg in the blinded extension period, and participants originally randomized to upadacitinib will continue upadacitinib in the extension period at the same dose. For the Main Study, the re-randomization will be stratified by Eczema Area and Severity Index (EASI) 50 responder status (Yes/No), by geographic region (US/Puerto Rico/Canada, Japan, China, and Other) and by age (adolescent [ages 12 to 17] versus adult [ages 18 to 75]). For the Adolescent Sub-study, the re-randomization will be stratified by EASI 50 responder (Yes/No) and by geographic region (US/Puerto Rico/Canada and Other). Starting at Week 4, rescue treatment for AD may be provided at the discretion of the investigator if medically necessary The Primary Analysis for the Main Study will be conducted after all ongoing participants have completed Week 16. In addition, a Primary Analysis for the adolescent population (including the adolescent participants from the Main Study and the Adolescent Sub-study) will be conducted after all ongoing adolescent participants have completed Week 16.

Official Title
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A Phase 3 Randomized, Placebo-Controlled, Double-Blind Study to Evaluate Upadacitinib in Combination With Topical Corticosteroids in Adolescent and Adult Subjects With Moderate to Severe Atopic Dermatitis

Conditions
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Atopic Dermatitis

Intervention / Treatment
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* Drug: Placebo
* Drug: Upadacitinib
* Drug: Topical corticosteroids (TCS)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Body weight of ≥ 40 kg at Baseline Visit for participants ≥ 12 and < 18 years of age Chronic atopic dermatitis (AD) with onset of symptoms at least 3 years prior to Baseline Visit and subject meets Hanifin and Rajka criteria. Active moderate to severe atopic dermatitis defined by Eczema Area and Severity Index (EASI) ≥ 16, validated Investigator's Global Assessment (vIGA) ≥ 3, ≥ 10% of body surface area (BSA) with AD involvement, and weekly average of daily Worst Pruritus numerical rating scale (NRS) ≥ 4. Subject has applied a topical emollient (moisturizer) twice daily for at least 7 days before the Baseline Visit. Documented history of inadequate response to topical corticosteroids or topical calcineurin inhibitor OR documented systemic treatment for AD within 6 months prior to Baseline Visit Exclusion Criteria: Prior exposure to any Janus kinase (JAK) inhibitor Unable or unwilling to discontinue current atopic dermatitis (AD) treatments prior to the study Requirement of prohibited medications during the study Other active skin diseases or skin infections requiring systemic treatment or would interfere with appropriate assessment of atopic dermatitis lesions Female subject who is pregnant, breastfeeding, or considering pregnancy during the study

Ages Eligible for Study
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Minimum Age: 12 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Placebo / Upadacitinib + Topical Corticosteroids<br>Participants will receive placebo orally once a day (QD) for 16 weeks in the double-blind treatment period. At Week 16 participants will be re-randomized to receive either upadacitinib 15 mg or upadacitinib 30 mg QD up to Week 260. Participants will also receive concomitant topical corticosteroids following a step-down regimen through Week 52. | Drug: Placebo<br>* Tablets taken orally once a day<br>Drug: Upadacitinib<br>* Tablets taken orally once a day<br>* Other names: RINVOQ™;Drug: Topical corticosteroids (TCS)<br>* Topical corticosteroids will be applied in a stepdown regimen, starting with medium potency once daily to areas with active lesions until lesions are clear or almost clear, or for 3 consecutive weeks, whichever is shorter; then low potency topical corticosteroids once daily. If lesions return or persist, this step-down approach will be repeated until lesion resolution or evidence of local or systemic topical corticosteroids toxicity. Recommended TCS include triamcinolone acetonide 0.1% cream or fluocinolone acetonide 0.025% ointment as medium potency topical corticosteroids and hydrocortisone 1% cream as low potency topical corticosteroid.<br>|
| Experimental: Upadacitinib 15 mg QD + Topical Corticosteroids<br>Participants will receive upadacitinib 15 mg orally once a day for up to 260 weeks. Participants will also receive concomitant topical corticosteroids following a step-down regimen through Week 52. | Drug: Upadacitinib<br>* Tablets taken orally once a day<br>* Other names: RINVOQ™;Drug: Topical corticosteroids (TCS)<br>* Topical corticosteroids will be applied in a stepdown regimen, starting with medium potency once daily to areas with active lesions until lesions are clear or almost clear, or for 3 consecutive weeks, whichever is shorter; then low potency topical corticosteroids once daily. If lesions return or persist, this step-down approach will be repeated until lesion resolution or evidence of local or systemic topical corticosteroids toxicity. Recommended TCS include triamcinolone acetonide 0.1% cream or fluocinolone acetonide 0.025% ointment as medium potency topical corticosteroids and hydrocortisone 1% cream as low potency topical corticosteroid.<br>|
| Experimental: Upadacitinib 30 mg QD + Topical Corticosteroids<br>Participants will receive upadacitinib 30 mg orally once a day for up to 260 weeks. Participants will also receive concomitant topical corticosteroids following a step-down regimen through Week 52. | Drug: Upadacitinib<br>* Tablets taken orally once a day<br>* Other names: RINVOQ™;Drug: Topical corticosteroids (TCS)<br>* Topical corticosteroids will be applied in a stepdown regimen, starting with medium potency once daily to areas with active lesions until lesions are clear or almost clear, or for 3 consecutive weeks, whichever is shorter; then low potency topical corticosteroids once daily. If lesions return or persist, this step-down approach will be repeated until lesion resolution or evidence of local or systemic topical corticosteroids toxicity. Recommended TCS include triamcinolone acetonide 0.1% cream or fluocinolone acetonide 0.025% ointment as medium potency topical corticosteroids and hydrocortisone 1% cream as low potency topical corticosteroid.<br>|
| Experimental: Long-Term Extension<br>Participants who reach Week 260 in Studies M16-045, M18-891, and M16-047 will have the opportunity to roll over into the blinded LTE period of M16-047 to continue receiving the same daily dose of upadacitinib for up to Week 524. | Drug: Upadacitinib<br>* Tablets taken orally once a day<br>* Other names: RINVOQ™;Drug: Topical corticosteroids (TCS)<br>* Topical corticosteroids will be applied in a stepdown regimen, starting with medium potency once daily to areas with active lesions until lesions are clear or almost clear, or for 3 consecutive weeks, whichever is shorter; then low potency topical corticosteroids once daily. If lesions return or persist, this step-down approach will be repeated until lesion resolution or evidence of local or systemic topical corticosteroids toxicity. Recommended TCS include triamcinolone acetonide 0.1% cream or fluocinolone acetonide 0.025% ointment as medium potency topical corticosteroids and hydrocortisone 1% cream as low potency topical corticosteroid.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Main Study: Percentage of Participants Achieving at Least a 75% Reduction in Eczema Area and Severity Index Score (EASI 75) From Baseline 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. | Baseline and Week 16 | 
| Main Study: Percentage of Participants Achieving Validated Investigator Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 With a Reduction From Baseline of ≥ 2 Points at Week 16 | The vIGA-AD is a validated assessment instrument to rate the severity of atopic dermatitis globally, based on the following scale: 0 - Clear: No inflammatory 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, oozing or crusting may be present; 4 - Severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. | Baseline and Week 16 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Main Study: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus Numerical Rating Scale (NRS) at Week 16 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 16 | 
| Main Study: Percentage of Participants Achieving a 90% Reduction From Baseline in EASI Score (EASI 90) 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. | Baseline and Week 16 | 
| Main Study: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS at Week 4 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 4 | 
| Main Study: Percentage of Participants Achieving an EASI 75 Response at Week 4 | 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 75 response is defined as at least a 75% reduction (improvement) from Baseline in EASI score. | Baseline and Week 4 | 
| Main Study: Percentage of Participants Achieving an EASI 75 Response at Week 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. An EASI 75 response is defined as at least a 75% reduction (improvement) from Baseline in EASI score. | Baseline and Week 2 | 
| Main Study: Percentage of Participants Achieving an EASI 90 Response at Week 4 | 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. | Baseline and Week 4 | 
| Main Study: Percentage of Participants Achieving a 100% Reduction From Baseline in EASI Score (EASI 100) 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 from 0 [none], to 3 [severe]) for redness, thickness, scratching, and lichenification. 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. The percentage of participants with an EASI 100 response at Week 16 was pre-specified as a ranked secondary endpoint for participants in the Upadacitinib 30 mg + Topical Corticosteroids group versus Placebo + Topical Corticosteroids group only. | Baseline and Week 16 | 
| Main Study: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS at Week 1 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 1 | 
| Main Study: Percent Change From Baseline in Worst Pruritus NRS at Week 16 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Pruritus NRS was analyzed based on weekly rolling averages of daily scores. A negative change from Baseline indicates improvement. | Baseline (last available rolling average before the first dose of study drug) and Week 16 | 
| Main Study: 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. | Baseline and Week 16 | 
| Adolescents: Percentage of Participants Achieving an EASI 75 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 75 response is defined as at least a 75% reduction (improvement) from Baseline in EASI score. | Baseline and Week 16 | 
| Adolescents: Percentage of Participants Achieving a vIGA-AD of 0 or 1 With a Reduction From Baseline of ≥ 2 Points at Week 16 | The vIGA-AD is a validated assessment instrument to rate the severity of atopic dermatitis globally, based 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. | Baseline and Week 16 | 
| Adolescents: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS at Week 16 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Worst pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 16 | 
| Adolescents: Percentage of Participants Achieving 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. | Baseline and Week 16 | 
| Adolescents: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS at Week 4 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Worst pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 4 | 
| Adolescents: Percentage of Participants Achieving an EASI 75 Response at Week 4 | 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 75 response is defined as at least a 75% reduction (improvement) from Baseline in EASI score. | Baseline and Week 4 | 
| Adolescents: Percentage of Participants Achieving an EASI 75 Response at Week 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. An EASI 75 response is defined as at least a 75% reduction (improvement) from Baseline in EASI score. | Baseline and Week 2 | 
| Adolescents: Percentage of Participants Achieving an EASI 90 Response at Week 4 | 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. | Baseline and Week 4 | 
| Adolescents: Percentage of Participants Achieving an EASI 100 Response at Week 16 | EASI is used 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 area score is recorded as the percentage of skin affected by eczema. and the severity score is calculated as the sum of the intensity scores (scored from 0 [none], to 3 [severe]) for redness, thickness, scratching, and lichenification. 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 100 response is defined as a 100% reduction (improvement) from Baseline in EASI score. The percentage of participants with an EASI 100 response at Week 16 was pre-specified as a secondary endpoint for participants in the Upadacitinib 30 mg + TCS group versus Placebo + TCS group only. | Baseline and Week 16 | 
| Adolescents: Percentage of Participants Achieving a Reduction of ≥ 4 Points From Baseline in Worst Pruritus NRS at Week 1 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Worst pruritus NRS was analyzed based on weekly rolling averages of daily scores. | Baseline (last available rolling average before the first dose of study drug) and Week 1 | 
| Adolescents: Percent Change From Baseline in Worst Pruritus NRS at Week 16 | Participants were asked to rate itch (pruritus) intensity at its worst during the past 24 hours on a daily basis using an 11-point scale from 0 (no itch) to 10 (worst imaginable itch). Pruritus NRS was analyzed based on weekly rolling averages of daily scores. A negative change from Baseline indicates improvement. | Baseline (last available rolling average before the first dose of study drug) and Week 16 | 
| Adolescents: 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. | Baseline and Week 16 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Atopic Dermatitis, Upadacitinib