Atopic Dermatitis, Atopic Dermatitis, Unspecified, Dermatitis, Atopic
Conditions
Keywords
Real world efficacy
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.
Interventions
DRUGAbrocitinib
Study Drug for Observational Data Collection.
Sponsors
Pfizer
Study design
Observational model
CASE_CROSSOVER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No
Inclusion criteria
This NI study will enroll 150 patients from approximately 15 sites across the US. The study population eligible for enrollment includes adult and adolescent patients aged ≥12 years diagnosed with moderate to severe AD who receive at least one dose of abrocitinib and satisfy the inclusion and
Exclusion criteria
. Patients who had inadequate response or intolerance to previous ≤2 biologic therapies will be included in this study as there is a lack of effectiveness data for abrocitinib in these patients. As this will be an observational study, there will be no sampling and all patients that meet the inclusion and
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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. |
| 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 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| 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 | — |
| Clinical Characteristics: Duration of prior therapy/frequency | Baseline | — |
| Clinical Characteristics: Total number of AD treatments used prior to abrocitinib initiation | Baseline | — |
| 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 | — |
| 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 |
| 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 | — |
Countries
United States
Contacts
CONTACTPfizer CT.gov Call Center
STUDY_DIRECTORPfizer CT.gov Call Center
Pfizer
Outcome results
None listed