Real World Efficiency of Abrocitinib Treatment at Patients With Moderate to Severe Atopic Dermatitis Who Had Inadequate Response to Previous Biologic Therapies.

Not yet recruiting

• Conditions: Atopic Dermatitis; Atopic Dermatitis, Unspecified; Dermatitis, Atopic
• Interventions: Drug: Abrocitinib

• Registration Number: NCT06899204
• Lead Sponsor: Pfizer

Brief Summary

This is a prospective, multi-center observational study characterizing clinical and patient reported outcomes of patients receiving abrocitinib for moderate-to-severe atopic dermatitis (M2S AD) who had inadequate response (or intolerance) to ≤2 previous biologic therapies approved for M2S AD in the United States.

The aim of this study is to measure the effectiveness of abrocitinib in a real-world setting in patients with moderate-to-severe atopic dermatitis, with inadequate response or intolerance to ≤2 biologic therapies.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2025-03-21
• Study First Submitted QC: 2025-03-21
• Study First Posted: 2025-03-27
• Status Verified: 2025-05
• Last Update Submitted: 2025-05-12
• Last Update Posted: 2025-05-13
• Study Start: 2025-05-15
• Primary Completion: 2026-07-01
• Study Completion: 2026-08-17

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 150

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Treatment	Abrocitinib	Patients that are taking treatment with abrocitinib for moderate to severe atopic dermatitis.

Primary Outcome Measures

Name	Time	Method
Percentage of patients achieving EASI-75 improvement from baseline at Week 16 after index date	Baseline, week 16	EASI evaluates severity of participant's AD (excluded scalp, palms, soles) based on severity of AD clinical signs and % of body surface area (BSA) affected. Severity of clinical signs of AD (erythema, induration/papulation, excoriation and lichenification) scored separately for each of 4 body regions(head and neck, upper limbs, trunk \[including axillae and groin\] and lower limbs \[including buttocks\]) on4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based upon % BSA with AD in each 4 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, higher scores = greater severity of AD
Percentage of patients achieving ≥ 4-point improvement in Peak Pruritus Numerical Rating Scale (PP-NRS) collected daily all through the study from baseline at Week 2 by e-diary assessment	Baseline, week 2	The severity of itch (pruritus) due to AD was assessed using a horizontal NRS. Participants at specified time points were asked the following question: "How would you rate your itch due to AD at the worst moment during the previous 24 hours?" The scale ranged from 0-10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.

Secondary Outcome Measures

Name	Time	Method
Clinical Characteristics: Duration of prior therapy/frequency	Baseline
Clinical Characteristics: Total number of AD treatments used prior to abrocitinib initiation	Baseline
Clinical characteristics : Reason for switching to abrocitinib from previous biologic	Baseline
Outcome: Assessment of efficacy in patients who received a dose change after baseline visit (dose increase or decrease)	Week 4, week 16
Assess early improvement in itch (within min/hrs) after first dose	Baseline, day 1 after index date	Patients will be asked when they realized improvement in their itch within the first day of abrocitinib treatment
Percentage of patients achieving EASI-75, 90 and 100 from baseline at Week 4 and 16 after index date	Baseline, week 4, week 16	EASI evaluates severity of participant's AD (excluded scalp, palms, soles) based on severity of AD clinical signs and % of body surface area (BSA) affected. Severity of clinical signs of AD (erythema, induration/papulation, excoriation and lichenification) scored separately for each of 4 body regions(head and neck, upper limbs, trunk \[including axillae and groin\] and lower limbs \[including buttocks\]) on4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based upon % BSA with AD in each 4 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, higher scores = greater severity of AD
Percentage of patients achieving v-IGA response of Clear (0) or Almost Clear (1) and ≥ 2 points improvement from baseline at Week 4 and 16 after index date	Baseline, week 4, week 16	Validated IGA assesses severity of participant's AD on a 5 point scale. 0= clear, no inflammatory signs of AD; 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 and 4= severe AD with deep dark red lesions, severe erythema, papulation/induration, lichenification, excoriation and moderate to severe oozing/crusting. Higher scores indicating more severity of AD. Assessment excluded soles, palms and scalp.
Change from baseline in total percentage of BSA at week 4 and 16	Baseline, week 4, week 16	4 body regions were evaluated: head and neck, upper limbs, trunk (including axillae and groin) and lower limbs (including buttocks). Scalp, palms and soles were excluded. BSA was calculated using handprint method. Number of handprints (size of participant's full palmer hand) fitting in the affected area of a body region was estimated. Maximum 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: arithmetic mean of % BSA of all 4 body regions, ranged from 0 to 100%, with higher values representing greater severity of AD
Percentage of patients achieving Peak Pruritus Numerical Rating Scale (PP-NRS) of 0 or 1 collected daily all through the study at Wk 4, 12 and 16	Baseline, week 4, 12 and 16	The severity of itch (pruritus) due to AD was assessed using a horizontal NRS. Participants at specified time points were asked the following question: "How would you rate your itch due to AD at the worst moment during the previous 24 hours?" The scale ranged from 0-10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch.
Percentage of patients achieving PP-NRS-4 at week 2, 4, 12 and 16 from baseline.	Baseline, week 2, 4, 12 and 16	The severity of itch (pruritus) due to AD was assessed using a horizontal NRS. Participants at specified time points were asked the following question: "How would you rate your itch due to AD at the worst moment during the previous 24 hours?" The scale ranged from 0-10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch
Absolute change from baseline in PP-NRS score at week 2	Baseline, week2	The severity of itch (pruritus) due to AD was assessed using a horizontal NRS. Participants at specified time points were asked the following question: "How would you rate your itch due to AD at the worst moment during the previous 24 hours?" The scale ranged from 0-10, where 0= no itch and 10= worst itch imaginable. Higher scores indicated worse itch
Proportion of patients overall "Very Satisfied" and "Satisfied" with abrocitinib at Wk 4, 12 and 16 with TSQM-9	Baseline, week 4, 12 and 16	TSQM-9 is a generic satisfaction assessment instrument to measure patient satisfaction with the medication taken.
Percentage of patients that report symptoms to be "minimal" or "absent" on the patient global impression of severity at week 4, 12 and 16	Baseline week 4, 12 and 16	PGI-S: A single-item PRO questionnaire assessing overall current disease severity on a 7-point verbal response scale
Change from baseline in Medical Outcomes Study - Sleep Scale (MOS-Sleep Scale) at Wk 4, 12 and 16	Baseline, week 4, 12 and 16	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.
Percentage of Participants with an ADCT Total Score Reduction ≥ 5 from baseline at week 4, 12 and 16	Baseline, week 4, 12 and 16	The ADCT is a validated, brief and easily scored tool for use in clinical practice and clinical research to evaluate 6 symptoms and effects associated with AD over the past week.
Percentage of Participants Achieving Improvement (reduction) in DLQI/CDLQI of ≥ 4 points vs baseline at week 4, 12 and 16	Baseline week 4, 12 and 16	CDLQI is a 10-item questionnaire that measures the impact of skin disease on adolescents (aged 12-17 years) quality of life over the last week. Each question was evaluated on a 4-point scale ranging from 0 (not at all) to 3 (very much); where higher scores indicate more impact on quality of life. CDLQI total score was the sum of individual scores of question 1-10 and ranges from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of children. DLQI is the adult version of the same index.
Observational change in pigment alteration from baseline at week 4 and 16 by visual assessment of available photography	Baseline, week 4, and 16	Physician visual evaluation of the pigmentation changes of the AD lesions.
Cilinical Characteristics: Type of prior AD treatment at specific medication level and Route of Administration	Baseline
Demographic charasteristics: Number/percentage of patients by age, sex, race, ethnicity, socioeconomic status, state of residence	Baseline
Clinical Characteristics: Number/percentage of patients by smoking status, medical history	Baseline