Skip to content

Study of Abrocitinib Compared With Dupilumab in Adults With Moderate to Severe Atopic Dermatitis on Background Topical Therapy

A PHASE 3B RANDOMIZED, DOUBLE-BLIND, DOUBLE-DUMMY, ACTIVE CONTROLLED MULTI-CENTER STUDY ASSESSING THE EFFICACY AND SAFETY OF ABROCITINIB COMPARED WITH DUPILUMAB IN ADULT PARTICIPANTS ON BACKGROUND TOPICAL THERAPY WITH MODERATE TO SEVERE ATOPIC DERMATITIS

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04345367
Enrollment
727
Registered
2020-04-14
Start date
2020-06-11
Completion date
2021-07-13
Last updated
2022-07-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atopic Dermatitis

Keywords

atopic dermatitis, atopic eczema, eczema, JAK, janus kinase

Brief summary

This is a randomized, double-blind, double-dummy, active-controlled, multi-center study to assess the efficacy and safety of abrocitinib 200 mg (2 x 100 mg tablets) administered orally QD compared with dupilumab 300 mg administered by subcutaneous injection every other week (as per label guidelines) in adult participants on background topical therapy, with moderate to severe AD. The treatment duration is 26 weeks. A total of approximately 600 participants will be enrolled from approximately 220 sites globally. Approximately 600 participants will be randomly assigned to study intervention. There are primary efficacy assessments at Week 2 and Week 4, and a key secondary efficacy assessment at Week 16. Efficacy and safety endpoints will be assessed throughout the entire study. Exploratory endpoints related to hand eczema efficacy will be assessed throughout the study.

Interventions

Abrocitinib 200 mg administered as two 100 mg tablets to be taken orally once daily for 26 weeks. Placebo injections will be administered every other week for 24 weeks.

COMBINATION_PRODUCTDupilumab 300 mg

Dupilumab 300 mg administered as a single subcutaneous injection every other week for 24 weeks (2 injections on day 1). Placebo tablets will be administered daily.

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older * Diagnosis of chronic atopic dermatitis (AD) for at least 6 months * Moderate to severe AD (BSA at least 10%, IGA at least 3, EASI at least 16, and PP-NRS severity score at least 4) * Recent history of inadequate response to treatment with medicated topical therapy for AD, or who have required systemic therapies for control of their disease

Exclusion criteria

* Acute or chronic medical or laboratory abnormality that may increase the risk associated with study participation * Have increased risk of developing venous thromboembolism * Unwilling to discontinue current AD medications prior to the study or require treatment with prohibited medications during the study * Prior treatment with systemic JAK inhibitors or IL-4 or IL-13 antagonists including dupilumab, lebrikizumab or tralokinumab * Other active non-AD inflammatory skin diseases or conditions affecting skin * Medical history including thrombocytopenia, coagulopathy or platelet dysfunction, malignancies, current or history of certain infections, lymphoproliferative disorders and other medical conditions at the discretion of the investigator * Pregnant or breastfeeding women, or women of childbearing potential who are unwilling to use contraception

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Achieving Greater Than or Equal to (>=) 4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4) From Baseline at Week 2Week 2The severity of itch (pruritus) due to atopic dermatitis (AD) was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.
Percentage of Participants Achieving >= 90% Improvement From Baseline in Eczema Area and Severity Index (EASI-90) Response at Week 4Week 4EASI quantifies severity of AD based on severity of lesion clinical signs and percentage (%) of body surface area (BSA) affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.

Secondary

MeasureTime frameDescription
Percent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Baseline (Day 1), Week 2, 4, 8, 12, 16, 20 and 26The extent (%) to which a body region was involved with AD was determined using handprint method. Number of handprints (size of participant's hand with fingers in a closed position) fitting in the affected area of a body region was estimated. Four body regions were evaluated: head and neck, upper limbs, trunk (including axillae and groin/genitals) and lower limbs (including buttocks). Total number of handprints were 10 for head and neck, 20 for upper limbs, 30 for trunk and 40 for lower limbs. Surface area of body region equivalent to 1 handprint: 1 handprint was equal to 10% for head and neck, 5% for upper limbs, 3.33% for trunk and 2.5% for lower limbs. Percent BSA for a body region was calculated as = total number of handprints in a body region \* % surface area equivalent to 1 handprint. Overall % BSA for an individual was derived as sum of % BSA across all 4 body regions and ranged from 0 to 100%, with higher values representing greater severity of AD.
Change From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Baseline (Day 1), Week 12, 16 and 26POEM was a 7-item participant reported outcome measure used to assess the impact of AD (dryness, itching, flaking, cracking, sleep loss, bleeding and weeping) over the past week. Each item was scored as: no days=0, 1-2 days=1, 3-4 days=2, 5-6 days=3 and every day=4. The item scores were added to provide a total score ranging from 0 to 28, where higher score indicated greater severity.
Change From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Baseline (Day 1), Week 12, 16 and 26The MOS Sleep Scale is a 12-item measure that is segregated into subscales addressing seven sleep domains (i.e. sleep disturbance, snoring, short of breath or headache, adequacy of sleep, somnolence, sleep problems index I and sleep problems index II). An additional single item assessed quantity of sleep. Each of the sleep domains were scored on a range of 0 to 100, and higher scores indicated worse outcomes. The quantity of sleep scores ranged from 0 to 24 (number of hours slept). Change from baseline scores for each individual sleep domain and quantity of sleep are reported in this outcome measure.
Change From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Baseline (Day 1), Week 2, 12, 16, 20 and 26The skin pain NRS was a participant reported outcome where participants were asked to rate the worst skin pain in the past 24 hours on a 11-point scale from 0=no skin pain to 10=worst skin pain imaginable. Higher scores indicated worse pain.
Medicated Topical Background Therapy-free DaysDay 1 up to Week 26Medicated topical background therapy-free days was defined as number of days where a participant maintained a response of EASI-90 or greater without the use of medicated topical background therapy.
Percentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 2, 12, 16, 20 and 26DLQI was a 10-item questionnaire that measured the impact of skin disease. Each question was evaluated on a 4-point scale (range 0 to 3) where, 0 = not at all, 1= a little, 2= a lot, 3= very much, where higher scores indicated more impact on quality of life. Scores from all 10 questions were added up to give DLQI total score range from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of participants.
Percentage of Participants Achieving EASI-90 Response at Week 16Week 16EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.
Percentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 2, 8, 12, 20 and 26EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.
Percentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 2, 4, 8, 12, 16, 20 and 26EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.
Percentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 2, 4, 8, 12, 16, 20 and 26IGA assessed severity of AD on a 5 point scale (0 to 4, higher scores indicate more severity). Scores: 0= clear, except any residual discoloration (post-inflammatory hyperpigmentation and/or hypopigmentation); 1= almost clear, AD not fully cleared- light pink residual lesions (except post-inflammatory hyperpigmentation), just perceptible erythema, papulation/induration lichenification, excoriation, and no oozing/crusting; 2= mild AD with light red lesions, slight but definite erythema, papulation/induration, lichenification, excoriation and no oozing/crusting; 3= moderate AD with red lesions, moderate erythema, papulation/induration, lichenification, excoriation and slight oozing/crusting; 4= severe AD with deep dark red lesions, severe erythema, papulation/induration, lichenification, excoriation and moderate to severe oozing/crusting.
Percentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.
Percentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 4, 8, 12, 16, 20 and 26The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.
Time to Achieve >=4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4)Baseline (Day 1) up to Week 30The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.
Percent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Baseline (Day 1), Week 2, 4, 8, 12, 16, 20 and 26SCORAD is a scoring index for AD which combined extent (A), severity (B) and subjective symptoms (C). For A, a rule of 9 was used to calculate BSA affected by AD as % of whole BSA for each body region- head and neck 9%; upper limbs 9% each; lower limbs 18% each; anterior trunk 18%; back 18%; genitals 1%. Score of each body region was added to determine A (range: 0-100). B: severity of each sign (erythema; edema/papulation; oozing/crusting; excoriation; skin thickening; dryness) was assessed as none (0), mild (1), moderate (2), severe (3); severity scores were added to give B (range: 0-18). C: pruritus and sleep loss, each of these 2 were scored by participant/caregiver using visual analog scale (VAS) where, 0=no itch/no sleep loss and 10=worst imaginable itch/sleep loss, higher scores=worse symptoms. Scores for itch and sleep loss were added to give 'C' (range: 0-20). SCORAD total score was calculated as: A/5+7\*B/2+C; range (0-103); higher values=worse outcome.
Change From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Baseline (Day 1), Week 12, 16 and 26HADS was a validated 14-item questionnaire to assess states of anxiety and depression over the past week. HADS consisted of 2 subscales: HADS-Anxiety (HADS-A) scale and HADS-Depression (HADS-D) scale, each of which comprised of 7 items. Each item was rated on a 4-point scale, with scores ranging from 0 to 3, where higher scores indicated more anxiety/depression symptoms. HADS-A assessed state of generalized anxiety (anxious mood, restlessness, anxious thoughts, panic attacks). HADS-A total score was calculated as the sum of all 7 items with score ranging from 0 (no presence of anxiety) to 21 (severe feeling of anxiety); higher score indicated greater severity of anxiety.
Change From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Baseline (Day 1), Week 12, 16 and 26HADS was a validated 14-item questionnaire to assess states of anxiety and depression over the past week. HADS consisted of 2 subscales: HADS-A scale and HADS-D scale, each of which comprised of 7 items. Each item was rated on a 4-point scale, with scores ranging from 0 to 3, where higher scores indicated more anxiety/depression symptoms. HADS-D assessed the state of lost interest and diminished pleasure response (lowering of hedonic tone). HADS-D: total score was calculated as the sum of all 7 items with score ranging from 0 (no presence of depression) to 21 (severe feeling of depression); higher score indicated greater severity of depression symptoms.
Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Baseline (Day 1), Week 2, 12, 16, 20 and 26DLQI is a 10-item questionnaire that measured the impact of skin disease. Each question was evaluated on a 4-point scale (range 0 to 3) where, 0 = not at all, 1= a little, 2= a lot, 3= very much, where higher scores indicated more impact on quality of life. Scores from all 10 questions were added up to give DLQI total score, ranging from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of participants.
Change From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Baseline (Day 1), Week 12, 16 and 26The EQ-5D-5L is a self-reported health status questionnaire that consisted of six questions used to calculate a health utility score. There were two components to the EQ-5D-5L: a five-item health state profile that assessed mobility, self-care, usual activities, pain/discomfort, and anxiety/depression used to obtain an Index Utility Score, as well as a VAS that measured health state. EQ-5D VAS was used to record participant's rating for his/her current health-related quality of life state on a vertical VAS with scores ranging from 0 to 100, where 0 = worst imaginable health state and 100 = best imaginable health state.

Other

MeasureTime frameDescription
Number of Participants With Clinically Significant Change From Baseline in Vital SignsFrom start of study intervention to 28 days post last dose of study intervention (Up to Week 30)Vital signs including temperature, systolic and diastolic blood pressure, and pulse rate were measured in a seated position after 5 minutes rest. Clinically significant change from baseline in vital signs were determined by the investigator.
Number of Participants With Clinically Significant Change From Baseline in Electrocardiogram (ECG) DataFrom start of study intervention to 28 days post last dose of study intervention (Up to Week 30)A single 12-lead ECG was performed after the participant has rested for at least 10 minutes quietly in the supine position. Clinically significant change from baseline in ECG data was determined by the investigator.
Number of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study DiscontinuationFrom start of study intervention to 28 days post last dose of study intervention (Up to Week 30)An SAE was defined as any untoward medical occurrence that, at any dose: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; a congenital anomaly/birth defect and other important medical events.
Number of Participants With Treatment Emergent Adverse Events (AEs)From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)An AE was any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a treatment-emergent adverse event (TEAE) if the event started on or after the first dosing day until 28 days post last dose of study drug. AEs included both serious and non-serious AEs.
Number of Participants With Laboratory Abnormalities Meeting Pre-Defined CriteriaFrom start of study intervention to 28 days post last dose of study intervention (Up to Week 30)The pre-defined criteria for laboratory parameters included: hemoglobin (\<9 grams per deciliter or decreases to \>=2 below baseline); platelets (\<75\*10\^3 cells per millimeter cube \[mm\^3\]); lymphocytes (\<0.5\*10\^3 cells per mm\^3); neutrophils (\<1\*10\^3 cells per mm\^3); aspartate aminotransferase and alanine aminotransferase (\>3\* upper limit of normal).

Countries

Australia, Bulgaria, Canada, Chile, Finland, Germany, Hungary, Italy, Latvia, Poland, Slovakia, South Korea, Spain, Taiwan, United States

Participant flow

Recruitment details

This was a double-blind, double-dummy, active-controlled study in adult participants with moderate to severe atopic dermatitis. The study was conducted across 143 sites in 15 countries.

Pre-assignment details

A total of 940 participants were screened, of which 213 were screen failures and were not enrolled. 727 participants were enrolled in the study and assigned to a study intervention.

Participants by arm

ArmCount
Abrocitinib 200 mg QD
Participants were administered abrocitinib 200 mg (2 x 100 mg) oral tablets once daily (QD) from Day 1 to Week 26 along with dupilumab-matching placebo administered as a subcutaneous injection once every 2 weeks (Q2W) until Week 24. Participants were followed for up to 4 weeks post last dose of study intervention.
362
Dupilumab 300 mg Q2W
Participants were administered dupilumab 300 mg as a subcutaneous injection Q2W until Week 24 along with abrocitinib-matching placebo oral tablets administered once daily from Day 1 to Week 26. Participants were followed for up to 4 weeks post last dose of study intervention.
365
Total727

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event109
Overall StudyDeath20
Overall StudyLack of Efficacy20
Overall StudyLost to Follow-up24
Overall StudyMedication Error Without Associated Adverse Event10
Overall StudyOther34
Overall StudyProtocol Violation43
Overall StudyWithdrawal by Subject1111

Baseline characteristics

CharacteristicDupilumab 300 mg Q2WTotalAbrocitinib 200 mg QD
Age, Continuous35.5 Years
STANDARD_DEVIATION 13.3
36.0 Years
STANDARD_DEVIATION 14
36.6 Years
STANDARD_DEVIATION 14.6
Ethnicity (NIH/OMB)
Hispanic or Latino
27 Participants57 Participants30 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
337 Participants668 Participants331 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants2 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
83 Participants145 Participants62 Participants
Race (NIH/OMB)
Black or African American
26 Participants51 Participants25 Participants
Race (NIH/OMB)
More than one race
3 Participants3 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants9 Participants4 Participants
Race (NIH/OMB)
White
248 Participants517 Participants269 Participants
Sex: Female, Male
Female
161 Participants330 Participants169 Participants
Sex: Female, Male
Male
204 Participants397 Participants193 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 3620 / 365
other
Total, other adverse events
203 / 362144 / 365
serious
Total, serious adverse events
6 / 3626 / 365

Outcome results

Primary

Percentage of Participants Achieving >= 90% Improvement From Baseline in Eczema Area and Severity Index (EASI-90) Response at Week 4

EASI quantifies severity of AD based on severity of lesion clinical signs and percentage (%) of body surface area (BSA) affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.

Time frame: Week 4

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 90% Improvement From Baseline in Eczema Area and Severity Index (EASI-90) Response at Week 428.5 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 90% Improvement From Baseline in Eczema Area and Severity Index (EASI-90) Response at Week 414.6 Percentage of participants
p-value: <0.000195% CI: [8.2, 20]Cochran-Mantel-Haenszel
Primary

Percentage of Participants Achieving Greater Than or Equal to (>=) 4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4) From Baseline at Week 2

The severity of itch (pruritus) due to atopic dermatitis (AD) was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.

Time frame: Week 2

Population: Full Analysis Set (FAS) comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving Greater Than or Equal to (>=) 4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4) From Baseline at Week 248.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Greater Than or Equal to (>=) 4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4) From Baseline at Week 225.5 Percentage of participants
p-value: <0.000195% CI: [15.8, 29.5]Cochran-Mantel-Haenszel
Secondary

Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26

DLQI is a 10-item questionnaire that measured the impact of skin disease. Each question was evaluated on a 4-point scale (range 0 to 3) where, 0 = not at all, 1= a little, 2= a lot, 3= very much, where higher scores indicated more impact on quality of life. Scores from all 10 questions were added up to give DLQI total score, ranging from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of participants.

Time frame: Baseline (Day 1), Week 2, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 12-10.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 20-10.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 16-10.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 26-10.3 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 2-8.6 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 26-10.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 2-6.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 12-9.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 16-10.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 2, 12, 16, 20 and 26Week 20-10.1 Units on a scale
95% CI: [-2.6, -1.3]
95% CI: [-1.6, -0.4]
95% CI: [-1.4, -0.2]
95% CI: [-1.2, 0]
95% CI: [-1, 0.4]
Secondary

Change From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26

The EQ-5D-5L is a self-reported health status questionnaire that consisted of six questions used to calculate a health utility score. There were two components to the EQ-5D-5L: a five-item health state profile that assessed mobility, self-care, usual activities, pain/discomfort, and anxiety/depression used to obtain an Index Utility Score, as well as a VAS that measured health state. EQ-5D VAS was used to record participant's rating for his/her current health-related quality of life state on a vertical VAS with scores ranging from 0 to 100, where 0 = worst imaginable health state and 100 = best imaginable health state.

Time frame: Baseline (Day 1), Week 12, 16 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 1212.370 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 1612.567 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 2613.484 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 1211.552 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 1610.474 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in EuroQol Quality of Life 5-Dimension 5-Level (EQ-5D-5L) Visual Analog Scale (VAS) Score at Week 12, 16 and 26Week 2614.300 Units on a scale
95% CI: [-1.22, 2.856]
95% CI: [-0.081, 4.267]
95% CI: [-2.914, 1.281]
Secondary

Change From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26

The MOS Sleep Scale is a 12-item measure that is segregated into subscales addressing seven sleep domains (i.e. sleep disturbance, snoring, short of breath or headache, adequacy of sleep, somnolence, sleep problems index I and sleep problems index II). An additional single item assessed quantity of sleep. Each of the sleep domains were scored on a range of 0 to 100, and higher scores indicated worse outcomes. The quantity of sleep scores ranged from 0 to 24 (number of hours slept). Change from baseline scores for each individual sleep domain and quantity of sleep are reported in this outcome measure.

Time frame: Baseline (Day 1), Week 12, 16 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 12-5.3 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 160.6 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 260.5 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 12-0.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 16-1.2 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 26-2.0 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 120.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 16-4.9 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 26-3.9 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 12-20.5 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 16-21.5 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 26-21.2 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 1213.9 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 1615.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 2614.0 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 12-7.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 16-9.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 26-9.9 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 12-12.1 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 16-13.3 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 26-12.9 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 12-14.4 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 16-15.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 26-15.4 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 16-12.8 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 120.5 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 1212.9 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 160.5 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 12-10.9 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Quantity Hours Slept Score: Week 260.4 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 1612.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 12-1.9 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 12-12.2 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 16-1.3 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Adequacy Score: Week 2613.2 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Short of Breath or Headache score: Week 26-2.6 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 16-11.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 12-3.5 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 12-6.9 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 16-4.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index II Score: Week 26-14.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Snoring Score: Week 26-4.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 16-7.4 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 12-16.4 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Problems Index I Score: Week 26-12.1 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 16-17.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Somnolence Score: Week 26-7.6 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Week 12, 16 and 26Sleep Disturbance Score: Week 26-19.5 Units on a scale
95% CI: [-6.2, -1.4]
95% CI: [-4.1, 0.7]
95% CI: [-0.1, 0.6]
95% CI: [-0.2, 0.4]
95% CI: [-0.2, 0.4]
95% CI: [-0.9, 3.4]
95% CI: [-2, 2.2]
95% CI: [-1.5, 2.6]
95% CI: [-4.2, 0.5]
95% CI: [-3.3, 1.5]
95% CI: [-1.7, 3.4]
95% CI: [-6.6, -1.6]
95% CI: [-1.6, 3.6]
95% CI: [0.4, 5.4]
95% CI: [-1.9, 3.4]
95% CI: [-2.8, 1.3]
95% CI: [-4.4, -0.4]
95% CI: [-4.3, -0.3]
95% CI: [-3, 0.7]
95% CI: [-4, -0.5]
95% CI: [-2.5, 0.9]
95% CI: [-4, -0.3]
95% CI: [-4.8, -1.1]
95% CI: [-3.2, 0.4]
Secondary

Change From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26

POEM was a 7-item participant reported outcome measure used to assess the impact of AD (dryness, itching, flaking, cracking, sleep loss, bleeding and weeping) over the past week. Each item was scored as: no days=0, 1-2 days=1, 3-4 days=2, 5-6 days=3 and every day=4. The item scores were added to provide a total score ranging from 0 to 28, where higher score indicated greater severity.

Time frame: Baseline (Day 1), Week 12, 16 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 12-14.2 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 16-14.2 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 26-13.8 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 12-12.6 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 16-12.8 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Patient-Oriented Eczema Measure (POEM) Total Score at Week 12, 16 and 26Week 26-13.4 Units on a scale
95% CI: [-2.5, -0.7]
95% CI: [-2.2, -0.5]
95% CI: [-1.3, 0.5]
Secondary

Change From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26

The skin pain NRS was a participant reported outcome where participants were asked to rate the worst skin pain in the past 24 hours on a 11-point scale from 0=no skin pain to 10=worst skin pain imaginable. Higher scores indicated worse pain.

Time frame: Baseline (Day 1), Week 2, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 12-4.5 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 20-4.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 16-4.4 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 26-4.5 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 2-3.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 26-4.3 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 2-2.6 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 12-4.0 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 16-4.2 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Skin Pain NRS at Week 2, 12, 16, 20 and 26Week 20-4.5 Units on a scale
95% CI: [-1.5, -0.8]
95% CI: [-0.8, -0.1]
95% CI: [-0.6, 0.1]
95% CI: [-0.6, 0]
95% CI: [-0.5, 0.1]
Secondary

Change From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26

HADS was a validated 14-item questionnaire to assess states of anxiety and depression over the past week. HADS consisted of 2 subscales: HADS-Anxiety (HADS-A) scale and HADS-Depression (HADS-D) scale, each of which comprised of 7 items. Each item was rated on a 4-point scale, with scores ranging from 0 to 3, where higher scores indicated more anxiety/depression symptoms. HADS-A assessed state of generalized anxiety (anxious mood, restlessness, anxious thoughts, panic attacks). HADS-A total score was calculated as the sum of all 7 items with score ranging from 0 (no presence of anxiety) to 21 (severe feeling of anxiety); higher score indicated greater severity of anxiety.

Time frame: Baseline (Day 1), Week 12, 16 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 12-0.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 16-1.1 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 26-1.1 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 12-0.8 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 16-1.2 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Anxiety Score Measured Using the Hospital Anxiety and Depression Scale (HADS) at Week 12,16 and 26Week 26-1.2 Units on a scale
95% CI: [-0.4, 0.4]
95% CI: [-0.3, 0.5]
95% CI: [-0.3, 0.6]
Secondary

Change From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26

HADS was a validated 14-item questionnaire to assess states of anxiety and depression over the past week. HADS consisted of 2 subscales: HADS-A scale and HADS-D scale, each of which comprised of 7 items. Each item was rated on a 4-point scale, with scores ranging from 0 to 3, where higher scores indicated more anxiety/depression symptoms. HADS-D assessed the state of lost interest and diminished pleasure response (lowering of hedonic tone). HADS-D: total score was calculated as the sum of all 7 items with score ranging from 0 (no presence of depression) to 21 (severe feeling of depression); higher score indicated greater severity of depression symptoms.

Time frame: Baseline (Day 1), Week 12, 16 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 12-0.7 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 16-0.8 Units on a scale
Abrocitinib 200 mg QDChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 26-0.8 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 12-0.7 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 16-0.9 Units on a scale
Dupilumab 300 mg Q2WChange From Baseline in Total Depression Score Measured Using the HADS at Week 12,16 and 26Week 26-1.0 Units on a scale
95% CI: [-0.3, 0.3]
95% CI: [-0.2, 0.5]
95% CI: [-0.1, 0.6]
Secondary

Medicated Topical Background Therapy-free Days

Medicated topical background therapy-free days was defined as number of days where a participant maintained a response of EASI-90 or greater without the use of medicated topical background therapy.

Time frame: Day 1 up to Week 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDMedicated Topical Background Therapy-free Days51.4 Days
Dupilumab 300 mg Q2WMedicated Topical Background Therapy-free Days33.3 Days
Comparison: Analysis was performed using analysis of covariance (ANCOVA) model including treatment as a main effect and baseline disease severity as covariates.95% CI: [10.5, 25.7]
Secondary

Percentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26

DLQI was a 10-item questionnaire that measured the impact of skin disease. Each question was evaluated on a 4-point scale (range 0 to 3) where, 0 = not at all, 1= a little, 2= a lot, 3= very much, where higher scores indicated more impact on quality of life. Scores from all 10 questions were added up to give DLQI total score range from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of participants.

Time frame: Week 2, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 1285.4 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 2081.8 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 1682.7 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 2676.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 281.3 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 2680.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 267.5 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 1281.4 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 1684.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >=4 Points Improvement From Baseline in DLQI at Week 2, 12, 16, 20 and 26Week 2083.7 Percentage of participants
95% CI: [7.3, 20.1]
95% CI: [-1.6, 9.4]
95% CI: [-7.1, 4]
95% CI: [-7.6, 3.6]
95% CI: [-10.3, 1.9]
Secondary

Percentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26

EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.

Time frame: Week 2, 4, 8, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 871.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 1677.3 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 457.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 2076.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 1276.3 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 2673.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 229.4 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 2672.3 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 221.3 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 436.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 852.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 1261.4 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 1667.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving >= 75% Improvement From Baseline in EASI (EASI-75) Response at Weeks 2, 4, 8, 12, 16, 20 and 26Week 2071.1 Percentage of participants
95% CI: [1.8, 14.4]
95% CI: [13.8, 28]
95% CI: [11.4, 25.3]
95% CI: [8.2, 21.5]
95% CI: [3, 16]
95% CI: [-1.4, 11.5]
95% CI: [-5.9, 7.2]
Secondary

Percentage of Participants Achieving EASI-90 Response at Week 16

EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.

Time frame: Week 16

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Week 1654.3 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Week 1641.9 Percentage of participants
p-value: 0.000895% CI: [5.3, 19.7]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26

EASI quantifies severity of AD based on severity of lesion clinical signs and % of BSA affected. Severity of clinical signs of AD lesions (erythema, induration/papulation, excoriation and lichenification) were scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin)\] and lower limbs \[including buttocks\]) on a 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based on % BSA with AD in body region: 0 (0%), 1 (\>0 to \<10%), 2 (10 to \<30%), 3 (30 to \<50%), 4 (50 to \<70%), 5 (70 to \<90%) and 6 (90 to 100%). Total EASI score =0.1\*Ah\*(Eh+Ih+Exh+Lh) + 0.2\*Au\*(Eu+Iu+ExU+Lu) + 0.3\*At\*(Et+It+Ext+Lt) + 0.4\*Al\*(El+Il+Exl+Ll); A = EASI area score; E = erythema; I = induration/papulation; Ex = excoriation; L = lichenification; h = head and neck; u = upper limbs; t = trunk; l = lower limbs. Total EASI score ranged from 0.0 to 72.0, with higher scores indicating greater severity of AD.

Time frame: Week 2, 8, 12, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 845.4 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 2058.4 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 1247.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 2654.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 211.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 2647.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 27.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 825.4 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 1233.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving EASI-90 Response at Weeks 2, 8, 12, 20 and 26Week 2045.7 Percentage of participants
95% CI: [0.2, 8.7]
95% CI: [13.2, 26.9]
95% CI: [6.9, 21.1]
95% CI: [5.5, 20]
95% CI: [-0.4, 14.3]
Secondary

Percentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26

IGA assessed severity of AD on a 5 point scale (0 to 4, higher scores indicate more severity). Scores: 0= clear, except any residual discoloration (post-inflammatory hyperpigmentation and/or hypopigmentation); 1= almost clear, AD not fully cleared- light pink residual lesions (except post-inflammatory hyperpigmentation), just perceptible erythema, papulation/induration lichenification, excoriation, and no oozing/crusting; 2= mild AD with light red lesions, slight but definite erythema, papulation/induration, lichenification, excoriation and no oozing/crusting; 3= moderate AD with red lesions, moderate erythema, papulation/induration, lichenification, excoriation and slight oozing/crusting; 4= severe AD with deep dark red lesions, severe erythema, papulation/induration, lichenification, excoriation and moderate to severe oozing/crusting.

Time frame: Week 2, 4, 8, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 850.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 1655.3 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 438.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 2060.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 1251.8 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 2655.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 214.4 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 2651.1 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 27.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 417.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 830.9 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 1236.0 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 1642.5 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving Investigator's Global Assessment (IGA) Score of 'Clear' or 'Almost Clear' and >=2 Points Improvement From Baseline up to Week 26Week 2050.8 Percentage of participants
95% CI: [2.8, 11.7]
95% CI: [14.3, 26.9]
95% CI: [12.5, 26.4]
95% CI: [8.7, 23]
95% CI: [5.9, 20.2]
95% CI: [2, 16.4]
95% CI: [-2.8, 11.8]
Secondary

Percentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15

The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.

Time frame: Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 938.5 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 422.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1040.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 628.4 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1140.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 526.4 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1241.5 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 733.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1344.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 315.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1445.5 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 836.3 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1548.6 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 211.0 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1525.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 511.9 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 23.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 38.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 615.5 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 713.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 814.1 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 916.9 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1018.7 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1120.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1220.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1321.5 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 1423.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Days 2 to 15Day 410.7 Percentage of participants
95% CI: [3.1, 11.1]
95% CI: [1.7, 11.3]
95% CI: [6, 16.8]
95% CI: [8.8, 20.3]
95% CI: [6.9, 19]
95% CI: [13.8, 26]
95% CI: [15.9, 28.3]
95% CI: [15.2, 28.1]
95% CI: [14.7, 27.9]
95% CI: [13.3, 26.6]
95% CI: [14.6, 27.9]
95% CI: [15.8, 29.2]
95% CI: [15.6, 29.2]
95% CI: [16, 29.9]
Secondary

Percentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26

The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.

Time frame: Week 4, 8, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (NUMBER)
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 458.1 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 865.8 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 1266.0 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 1667.2 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 2065.3 Percentage of participants
Abrocitinib 200 mg QDPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 2668.1 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 2063.2 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 440.8 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 1663.6 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 852.7 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 2663.1 Percentage of participants
Dupilumab 300 mg Q2WPercentage of Participants Achieving PP-NRS4 From Baseline at Week 4, 8, 12, 16, 20 and 26Week 1261.5 Percentage of participants
95% CI: [10.1, 24.5]
95% CI: [6, 20.1]
95% CI: [-2.5, 11.4]
95% CI: [-3.4, 10.5]
95% CI: [-4.9, 9]
95% CI: [-1.9, 11.9]
Secondary

Percent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26

The extent (%) to which a body region was involved with AD was determined using handprint method. Number of handprints (size of participant's hand with fingers in a closed position) fitting in the affected area of a body region was estimated. Four body regions were evaluated: head and neck, upper limbs, trunk (including axillae and groin/genitals) and lower limbs (including buttocks). Total number of handprints were 10 for head and neck, 20 for upper limbs, 30 for trunk and 40 for lower limbs. Surface area of body region equivalent to 1 handprint: 1 handprint was equal to 10% for head and neck, 5% for upper limbs, 3.33% for trunk and 2.5% for lower limbs. Percent BSA for a body region was calculated as = total number of handprints in a body region \* % surface area equivalent to 1 handprint. Overall % BSA for an individual was derived as sum of % BSA across all 4 body regions and ranged from 0 to 100%, with higher values representing greater severity of AD.

Time frame: Baseline (Day 1), Week 2, 4, 8, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 8-74.0 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 16-80.6 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 4-62.0 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 20-82.2 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 12-78.8 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 26-82.3 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 2-42.7 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 26-79.0 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 2-33.4 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 4-49.5 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 8-62.8 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 12-69.4 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 16-73.7 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the Percentage (%) Body Surface Area (BSA) Affected at Week 2, 4, 8, 12, 16, 20 and 26Week 20-76.9 Percent change
95% CI: [-14, -4.6]
95% CI: [-17.4, -7.6]
95% CI: [-15.6, -6.6]
95% CI: [-13.7, -5.1]
95% CI: [-10.9, -2.9]
95% CI: [-9, -1.7]
95% CI: [-7.1, 0.4]
Secondary

Percent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26

SCORAD is a scoring index for AD which combined extent (A), severity (B) and subjective symptoms (C). For A, a rule of 9 was used to calculate BSA affected by AD as % of whole BSA for each body region- head and neck 9%; upper limbs 9% each; lower limbs 18% each; anterior trunk 18%; back 18%; genitals 1%. Score of each body region was added to determine A (range: 0-100). B: severity of each sign (erythema; edema/papulation; oozing/crusting; excoriation; skin thickening; dryness) was assessed as none (0), mild (1), moderate (2), severe (3); severity scores were added to give B (range: 0-18). C: pruritus and sleep loss, each of these 2 were scored by participant/caregiver using visual analog scale (VAS) where, 0=no itch/no sleep loss and 10=worst imaginable itch/sleep loss, higher scores=worse symptoms. Scores for itch and sleep loss were added to give 'C' (range: 0-20). SCORAD total score was calculated as: A/5+7\*B/2+C; range (0-103); higher values=worse outcome.

Time frame: Baseline (Day 1), Week 2, 4, 8, 12, 16, 20 and 26

Population: FAS comprised of all randomized participants who received at least one dose of study intervention.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 8-65.8 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 16-70.6 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 4-59.6 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 20-71.8 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 12-67.9 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 26-71.5 Percent change
Abrocitinib 200 mg QDPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 2-44.5 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 26-68.2 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 2-33.5 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 4-46.8 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 8-55.6 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 12-60.6 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 16-64.4 Percent change
Dupilumab 300 mg Q2WPercent Change From Baseline in the SCORing Atopic Dermatitis (SCORAD) Total Score at Week 2, 4, 8, 12, 16, 20 and 26Week 20-66.8 Percent change
95% CI: [-14.5, -7.6]
95% CI: [-16, -9.5]
95% CI: [-13.6, -6.8]
95% CI: [-10.5, -4.1]
95% CI: [-9.3, -3]
95% CI: [-8.2, -1.7]
95% CI: [-6.6, 0.1]
Secondary

Time to Achieve >=4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4)

The severity of itch (pruritus) due to AD was assessed using the PP-NRS, a validated horizontal NRS. Participants were asked to assess their worst itching due to AD over the past 24 hours on an NRS with scale ranging from 0 to 10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.

Time frame: Baseline (Day 1) up to Week 30

Population: FAS comprised of all randomized participants who received at least one dose of study intervention. Here, 'Overall Number of Participants Analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Abrocitinib 200 mg QDTime to Achieve >=4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4)11.0 Days
Dupilumab 300 mg Q2WTime to Achieve >=4 Points Improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4)25.0 Days
Other Pre-specified

Number of Participants With Clinically Significant Change From Baseline in Electrocardiogram (ECG) Data

A single 12-lead ECG was performed after the participant has rested for at least 10 minutes quietly in the supine position. Clinically significant change from baseline in ECG data was determined by the investigator.

Time frame: From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)

Population: Safety population comprised of all participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abrocitinib 200 mg QDNumber of Participants With Clinically Significant Change From Baseline in Electrocardiogram (ECG) Data0 Participants
Dupilumab 300 mg Q2WNumber of Participants With Clinically Significant Change From Baseline in Electrocardiogram (ECG) Data0 Participants
Other Pre-specified

Number of Participants With Clinically Significant Change From Baseline in Vital Signs

Vital signs including temperature, systolic and diastolic blood pressure, and pulse rate were measured in a seated position after 5 minutes rest. Clinically significant change from baseline in vital signs were determined by the investigator.

Time frame: From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)

Population: Safety population comprised of all participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abrocitinib 200 mg QDNumber of Participants With Clinically Significant Change From Baseline in Vital Signs0 Participants
Dupilumab 300 mg Q2WNumber of Participants With Clinically Significant Change From Baseline in Vital Signs0 Participants
Other Pre-specified

Number of Participants With Laboratory Abnormalities Meeting Pre-Defined Criteria

The pre-defined criteria for laboratory parameters included: hemoglobin (\<9 grams per deciliter or decreases to \>=2 below baseline); platelets (\<75\*10\^3 cells per millimeter cube \[mm\^3\]); lymphocytes (\<0.5\*10\^3 cells per mm\^3); neutrophils (\<1\*10\^3 cells per mm\^3); aspartate aminotransferase and alanine aminotransferase (\>3\* upper limit of normal).

Time frame: From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)

Population: Safety population comprised of all participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abrocitinib 200 mg QDNumber of Participants With Laboratory Abnormalities Meeting Pre-Defined Criteria38 Participants
Dupilumab 300 mg Q2WNumber of Participants With Laboratory Abnormalities Meeting Pre-Defined Criteria10 Participants
Other Pre-specified

Number of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study Discontinuation

An SAE was defined as any untoward medical occurrence that, at any dose: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; a congenital anomaly/birth defect and other important medical events.

Time frame: From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)

Population: Safety population comprised of all participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Abrocitinib 200 mg QDNumber of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study DiscontinuationSAEs6 Participants
Abrocitinib 200 mg QDNumber of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study DiscontinuationAEs Leading to Study Discontinuation12 Participants
Dupilumab 300 mg Q2WNumber of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study DiscontinuationSAEs6 Participants
Dupilumab 300 mg Q2WNumber of Participants With Serious Adverse Events (SAEs) and AEs Leading to Study DiscontinuationAEs Leading to Study Discontinuation9 Participants
Other Pre-specified

Number of Participants With Treatment Emergent Adverse Events (AEs)

An AE was any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a treatment-emergent adverse event (TEAE) if the event started on or after the first dosing day until 28 days post last dose of study drug. AEs included both serious and non-serious AEs.

Time frame: From start of study intervention to 28 days post last dose of study intervention (Up to Week 30)

Population: Safety population comprised of all participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abrocitinib 200 mg QDNumber of Participants With Treatment Emergent Adverse Events (AEs)268 Participants
Dupilumab 300 mg Q2WNumber of Participants With Treatment Emergent Adverse Events (AEs)239 Participants

Source: ClinicalTrials.gov · Data processed: May 22, 2026