Crisaborole for Chinese and Japanese Subjects (≥2 Years of Age) With Mild to Moderate Atopic Dermatitis

Sponsor
Pfizer (Industry)
Overall Status
Completed
CT.gov ID
NCT04360187
Collaborator
(none)
391
39
2
13.4
10
0.7

Study Details

Study Description

Brief Summary

This study is a phase 3, randomized, double blind and vehicle study to evaluate the efficacy and safety of Crisaborole ointment, 2% in Chinese and Japanese subjects with mild to moderate atopic dermatitis involving at least 5% treatable BSA. Eligible subjects will be randomized in a 2:1 ratio to one of 2 treatment groups (Crisaborole BID, Vehicle BID, respectively).

Condition or Disease Intervention/Treatment Phase
  • Drug: Crisaborole Ointment
  • Drug: Crisaborole Placebo Vehicle
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
391 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A PHASE 3, MULTICENTER, RANDOMIZED, DOUBLE BLIND, VEHICLE CONTROLLED STUDY OF THE EFFICACY AND SAFETY OF CRISABOROLE OINTMENT, 2% IN CHINESE AND JAPANESE PEDIATRIC AND ADULT SUBJECTS (AGES 2 YEARS AND OLDER) WITH MILD TO MODERATE ATOPIC DERMATITIS
Actual Study Start Date :
Jul 27, 2020
Actual Primary Completion Date :
Sep 8, 2021
Actual Study Completion Date :
Sep 8, 2021

Arms and Interventions

Arm Intervention/Treatment
Experimental: Crisaborole ointment

Crisaborole ointment application twice daily for 28 days

Drug: Crisaborole Ointment
Crisaborole ointment 2%

Placebo Comparator: Crisaborole Placebo Vehicle

Vehicle Ointment application twice daily for 28 days

Drug: Crisaborole Placebo Vehicle
Placebo for crisaborole ointment

Outcome Measures

Primary Outcome Measures

  1. Percent Change From Baseline in Eczema Area and Severity Index (EASI) Total Score at Day 29 [Baseline, Day 29]

    The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of body surface area (BSA) affected. EASI is a composite scoring of the degree of erythema, induration/papulation, excoriation, and lichenification (each scored separately) for each of four body regions, with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD.

  2. Percentage of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) [Baseline up to Day 60]

    An adverse event was considered as a treatment-emergent adverse event (TEAE) if the event started after the first dose of treatment regardless of whether a similar event of equal or greater severity existed in the baseline period. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs are classified according to the severity in 3 categories a) mild - AEs does not interfere with participant's usual function b) moderate - AEs interferes to some extent with participant's usual function c) severe - AEs interferes significantly with participant's usual function.

  3. Percentage of Participants With Clinically Significant Changes From Baseline in Clinical Laboratory Parameters [Baseline up to Day 29]

    Laboratory parameters included: hematology and chemistry. Clinically significant laboratory abnormalities are defined as abnormal values that have clinical manifestations or require medical intervention. Clinically significant laboratory criteria included Hemoglobin <0.8 x lower limit of normal (LLN), Leukocytes >1.5 x upper limit of normal (ULN), Lymphocytes <0.8 x LLN, Lymphocytes/Leukocytes >1.2 x ULN, Neutrophils <0.8 x LLN, Neutrophils >1.2x ULN, Neutrophils/Leukocytes <0.8 x LLN, Basophils/Leukocytes >1.2 x ULN, Eosinophils >1.2 x ULN, Eosinophils/Leukocytes >1.2 x ULN, Monocytes >1.2 x ULN, Monocytes/Leukocytes (%) >1.2 x ULN, Bicarbonate <0.9 x LLN, and Glucose >1.5x ULN.

  4. Percentage of Participants With Clinically Significant Changes From Baseline in Vital Signs [Baseline up to Day 29]

    Vital signs (temperature, respiratory rate, pulse, systolic and diastolic blood pressure) were obtained with participants in the seated position, after having sat/lied calmly for at least 5 minutes. Clinically significant vital signs criteria included Diastolic Blood Pressure (DBP) Value <50 mmHg, DBP Change ≥20 mmHg increase, DBP Change ≥20 mmHg decrease, Pulse Rate Value >120 beats per minute (bpm), Systolic Blood Pressure (SBP) Value <90 mmHg, SBP Change ≥30 mmHg increase, SBP Change ≥30mmHg decrease

Secondary Outcome Measures

  1. Percentage of Participants Achieving Improvement in Investigator's Static Global Assessment (ISGA) at Day 29 [Baseline, Day 29]

    ISGA assessed the severity of atopic dermatitis (AD) on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Improvement in ISGA is defined as ISGA score of 0 or 1.

  2. Percentage of Participants Achieving Success in ISGA at Day 29 [Baseline, Day 29]

    ISGA assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Success in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) with at least a 2 grade improvement from Baseline.

  3. Change From Baseline in Peak Pruritus Numeric Rating Scale (NRS) at Week 4-for Participants ≥12 Years [Baseline, Week 4]

    Participant-rated pruritus score of lesions rated the severity of pruritus suffered in the past 24 hours on an 11-point NRS where 0 is no pruritus and 10 is worst itch imaginable. Change: score at Week 4 minus score at baseline.

  4. Percentage of Participants Achieving Success in ISGA Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    ISGA assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Success in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) with at least a 2 grade improvement from Baseline.

  5. Percentage of Participants Achieving Improvement in ISGA Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    ISGA (Investigator's Static Global Assessment) assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Improvement in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) .

  6. Percent Change From Baseline in EASI Total Score Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. EASI is a composite scoring of the degree of erythema, induration/papulation, excoriation, and lichenification (each scored separately) for each of four body regions, with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD.

  7. Change From Baseline in Percent Body Surface Area (%BSA) Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    4 body regions were evaluated: head and neck, upper limbs, trunk (including axillae and groin) and lower limbs (including buttocks). Scalp was excluded. BSA was calculated 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.

  8. Percentage of Participants Achieving EASI-50 Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. The EASI score can vary in increments of range from 0.0 to 72.0, with higher scores representing greater severity of atopic dermatitis. EASI-50 is defined as EASI score has ≥50% improvement from baseline.

  9. Percentage of Participants Achieving EASI-75 Over Time [Baseline, Day 8, Day 15, Day 22, Day 29]

    The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. The EASI score can vary in increments of range from 0.0 to 72.0, with higher scores representing greater severity of atopic dermatitis. EASI-75 is defined as EASI score has ≥75% improvement from baseline.

  10. Change From Baseline in Peak Pruritus NRS Over Time-for Participants ≥12 Years [Baseline, Week 1, Week 2, Week 3, Week 4]

    Peak Pruritus NRS is participants-rated pruritus score of lesions rated the severity of pruritus suffered in the past 24 hours on an 11-point NRS where 0 is no pruritus and 10 is worst itch imaginable. Change: score at observation minus score at baseline.

  11. Change From Baseline in Patient Reported Itch Severity Scale Over Time-for Participants ≥6 Years and <12 Years [Baseline, Week 1, Week 2, Week 3, Week 4]

    Patient Reported Itch Severity Scale is a 5-point scale indicating no itchy to very itchy (ranged from 0 to 4, where 0=no itch to 4=worst itch imaginable) for participants ≥6 and <12 years of age.

  12. Change From Baseline in Observer Reported Itch Severity Scale Over Time-for Participants <6 Years [Baseline, Week 1, Week 2, Week 3, Week 4]

    Observer Reported Itch Severity Scale is an 11-point (ranged from 0 to 10, where 0=no itch to 10=worst itch imaginable) scale and must be completed by the observer (caregivers of participants) for participants <6 years of age.

  13. Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score Over Time [Baseline, Day 15, Day 29]

    The DLQI was a 10-item questionnaire that measures the impact of skin disease on participant's quality of life. The questionnaire will be completed by all participants aged 16 years and older, based on the age at Screening Visit/time of informed consent/assent. The DLQI is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score, the more quality of life is impaired.

  14. Change From Baseline in Children's Dermatology Life Quality Index (CDLQI) Score Over Time [Baseline, Day 15, Day 29]

    The CDLQI was a 10-item questionnaire that measures the impact of skin disease on children's (aged 4-15 years) quality of life. The CDLQI is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score, the more quality of life is impaired.

  15. Change From Infants' Dermatitis Quality of Life Index (IDQOL) Total Score Over Time [Baseline, Day 15, Day 29]

    The IDQOL was completed by observer for participants aged 2-3 years, based on the age at the Screening Visit/time of informed consent/assent. The IDQOL is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score the more quality of life is impaired.

  16. Change From Baseline in Dermatitis Family Impact Questionnaire (DFI) Score Over Time [Baseline, Day 15, Day 29]

    The DFI was completed by all observer for participants aged 2-17 years, based on the age at Screening Visit/time of informed consent/assent. The minimum DFI score is 0; the maximum DFI score is 30. The higher score means worse outcome.

  17. Change From Baseline in Patient-Oriented Eczema Measure (POEM) Over Time in Participants ≥12 Years [Baseline, Day 15, Day 29]

    The POEM is a validated 7-item measure used to assess the impact of AD over the past week. The POEM contains 7 symptom based questions with responses rating number of days each symptom is experienced over the past week, from 0 (no days) to 4 (every day), with a maximum score of 28. Higher score means worse outcome.

  18. Change From Baseline in POEM Over Time in Participants ≥2 Years and <12 Years [Baseline, Day 15, Day 29]

    The POEM is a validated 7-item measure used to assess the impact of AD over the past week. The POEM contains 7 symptom based questions with responses rating number of days each symptom is experienced over the past week, from 0 (no days) to 4 (every day), with a maximum score of 28. Higher score means worse outcome.

  19. Change From Baseline in Weekly Average of Patient Global Impression of Severity (PGIS) Score [Baseline, Week 1, Week 2, Week 3, Week 4]

    The PGIS (for participants 12 years and older) is a single item patient-rated measure of the participant's AD condition severity at a given point in time. This single item instrument uses a 7-point rating scale, which range from 1 to 7, where 1=Not present to 7=Extremely severe.

  20. Patient Global Impression of Change (PGIC) Score [Day 8, Day 15, Day 22, Day 29]

    The PGIC (for participants 12 years and older) was used to determine global improvement as assessed by the participant or caregiver. It was used as an anchor to define a responder definition for the peak pruritus scales for 'clinically important responder' and as a sensitivity analysis for defining a 'clinical important difference' on the peak pruritus scales. This single item instrument is a 7-point rating scale, anchored by (1) 'very much improved' to (7) 'very much worse'.

  21. Change From Baseline in Weekly Average of Observer Reported Global Impression of Severity (OGIS) Score [Baseline, Week 1, Week 2, Week 3, Week 4]

    The OGIS (for participants ≥2 and <12 years) is a single item observer-rated measure of the participant's AD condition severity at a given point in time. This single item instrument uses a 7-point rating scale, which ranged from 1 to 7, where 1=Not present to 7=Extremely severe.

  22. Observer Reported Global Impression of Change (OGIC) Score [Day 8, Day 15, Day 22, Day 29]

    The OGIC (for participants ≥2 and <12 years ) was used to determine global improvement as assessed by the participant or caregiver. It was used as an anchor to define a responder definition for the peak pruritus scales for 'clinically important responder' and as a sensitivity analysis for defining a 'clinical important difference' on the peak pruritus scales. This single item instrument is a 7-point rating scale, anchored by (1) 'very much improved' to (7) 'very much worse'.

Eligibility Criteria

Criteria

Ages Eligible for Study:
2 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Is male or female 2 years and older at the Screening visit/time of informed consent/assent diagnosed with mild-moderate AD (according to the criteria of Hanifin and Rajka), of at least 5% BSA.
Exclusion Criteria:
  • Has any clinically significant medical disorder, condition, or disease (including active or potentially recurrent non AD dermatological conditions and known genetic dermatological conditions that overlap with AD, such as Netherton syndrome) or clinically significant physical examination finding at Screening that in the PI's or designee's opinion may interfere with study objectives.

  • Has participated in a previous crisaborole clinical study.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Beijing Friendship Hospital, Capital Medical University Beijing Beijing China 100050
2 Dermatology Hospital of Southern Medical University Guangzhou Guangdong China 510091
3 Guangzhou First People's Hospital Guangzhou Guangdong China 510180
4 The Second Affiliated Hospital of Guangzhou Medical University Guangzhou Guangdong China 510260
5 The First Affiliated Hospital of Shantou University Medical College Shantou Guangdong China 515041
6 Shenzhen Children's Hospital Shenzhen Guangdong China 518026
7 Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan Hubei China 430030
8 The Second Xiangya Hospital of Central South University Changsha Hunan China 410011
9 The First hospital of Jilin University Changchun Jilin China 130021
10 Shandong Provincial Institute of Dermatology and Venereology & Shandong Provincial Hospital for Skin Jinan Shandong China 250022
11 Huashan Hospital Fudan University Shanghai Shanghai China 200040
12 Tianjin Medical University General Hospital Tianjin Tianjin China 300052
13 First Affiliated Hospital of Kunming Medical University Kunming Yunnan China 650032
14 Hangzhou Third Hospital Hangzhou Zhejiang China 310009
15 Zhejiang Provincial People's Hospital/Dermatology Department Hangzhou Zhejiang China 310014
16 Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou Zhejiang China 310016
17 The first Affiliated hospital of Wenzhou medical University Wenzhou Zhejiang China 325000
18 Peking University People's Hospital Beijing China 100044
19 Beijing Children's Hospital, Capital Medical University Beijing China 100045
20 The Second Affiliated Hospital of Army Medical University,PLA Chongqing China 400037
21 Children's Hospital of Shanghai Shanghai China 200062
22 Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital Tianjin China 300120
23 Miyata Dermatology Clinic Matsudo City Chiba Japan 271-0092
24 Shirao Clinic of Pediatrics and Pediatric Allergy Hiroshima-shi Hiroshima Japan 734-0023
25 Motomachi Dermatology Clinic Asahikawa-shi Hokkaido Japan 070-0810
26 Chitose dermatology and plastic surgery clinic Chitose Shi Hokkaido Japan 066-0021
27 Takagi Dermatological Clinic Obihiro Hokkaido Japan 080-0013
28 Yoshimura Child Clinic Akashi-City Hyōgo Japan 674-0068
29 Iryouhoujinshadan Yamayurikai Tsujino. Kodomo Clinic Kobe-City Hyōgo Japan 658-0082
30 Nomura Dermatology Clinic Yokohama-shi Kanagawa Japan 221-0825
31 Noguchi Dermatology Clinic Kamimashiki-gun Kumamoto Japan 861-3101
32 Yoshioka Dermatology Clinic Neyagawa Osaka Japan 572-0838
33 Kume Clinic Sakai-City Osaka Japan 593-8324
34 Mildix Skin Clinic Adachi-ku Tokyo Japan 120-0034
35 Yoga Allergy Clinic Setagaya-ku Tokyo Japan 158-0097
36 Sugamo Kobayashi Derma Clinic Toshima-Ku Tokyo Japan 170-0002
37 Sugamo Sengoku Dermatology Toshima-Ku Tokyo Japan 170-0002
38 Hoshikuma Dermatology・Allergy Clinic Fukuoka Japan 814-0171
39 Hallym University Kangnam Sacred Heart Hospital Seoul Korea, Republic of 07441

Sponsors and Collaborators

  • Pfizer

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Study Documents (Full-Text)

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Pfizer
ClinicalTrials.gov Identifier:
NCT04360187
Other Study ID Numbers:
  • C3291032
First Posted:
Apr 24, 2020
Last Update Posted:
Jun 7, 2022
Last Verified:
May 1, 2022
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Product Manufactured in and Exported from the U.S.:
Yes
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable body surface area (BSA) identified at Baseline/Day 1 and new atopic dermatitis (AD) lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Period Title: Double-Blind Treatment
STARTED 131 260
COMPLETED 108 245
NOT COMPLETED 23 15
Period Title: Double-Blind Treatment
STARTED 114 232
COMPLETED 113 232
NOT COMPLETED 1 0

Baseline Characteristics

Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID) Total
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Total of all reporting groups
Overall Participants 131 260 391
Age, Customized (Count of Participants)
2-11 Years
69
52.7%
123
47.3%
192
49.1%
12-17 Years
15
11.5%
25
9.6%
40
10.2%
>=18 Years
47
35.9%
112
43.1%
159
40.7%
Sex: Female, Male (Count of Participants)
Female
64
48.9%
122
46.9%
186
47.6%
Male
67
51.1%
138
53.1%
205
52.4%
Ethnicity (NIH/OMB) (Count of Participants)
Hispanic or Latino
0
0%
0
0%
0
0%
Not Hispanic or Latino
131
100%
260
100%
391
100%
Unknown or Not Reported
0
0%
0
0%
0
0%
Race (NIH/OMB) (Count of Participants)
American Indian or Alaska Native
0
0%
0
0%
0
0%
Asian
131
100%
260
100%
391
100%
Native Hawaiian or Other Pacific Islander
0
0%
0
0%
0
0%
Black or African American
0
0%
0
0%
0
0%
White
0
0%
0
0%
0
0%
More than one race
0
0%
0
0%
0
0%
Unknown or Not Reported
0
0%
0
0%
0
0%

Outcome Measures

1. Primary Outcome
Title Percent Change From Baseline in Eczema Area and Severity Index (EASI) Total Score at Day 29
Description The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of body surface area (BSA) affected. EASI is a composite scoring of the degree of erythema, induration/papulation, excoriation, and lichenification (each scored separately) for each of four body regions, with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD.
Time Frame Baseline, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Least Squares Mean (95% Confidence Interval) [Percent Change]
-42.79
-59.92
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Vehicle Twice a Day (BID), Crisaborole 2% Twice a Day (BID)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.0002
Comments
Method Mixed effect Model for Repeated Measures
Comments
Method of Estimation Estimation Parameter LS mean of difference
Estimated Value -17.13
Confidence Interval (2-Sided) 95%
-25.98 to -8.27
Parameter Dispersion Type:
Value:
Estimation Comments Crisaborole = Test Vehicle = Reference
2. Primary Outcome
Title Percentage of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs)
Description An adverse event was considered as a treatment-emergent adverse event (TEAE) if the event started after the first dose of treatment regardless of whether a similar event of equal or greater severity existed in the baseline period. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs are classified according to the severity in 3 categories a) mild - AEs does not interfere with participant's usual function b) moderate - AEs interferes to some extent with participant's usual function c) severe - AEs interferes significantly with participant's usual function.
Time Frame Baseline up to Day 60

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants who were randomized and received at least 1 confirmed dose of investigational product.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Participants With Adverse Events
44.3
33.8%
46.2
17.8%
Participants With Serious Adverse Events
0.8
0.6%
0.4
0.2%
Participants With Severe Adverse Events
1.5
1.1%
0
0%
Participants Discontinued From Study Due to Adverse Events
0.8
0.6%
0
0%
3. Primary Outcome
Title Percentage of Participants With Clinically Significant Changes From Baseline in Clinical Laboratory Parameters
Description Laboratory parameters included: hematology and chemistry. Clinically significant laboratory abnormalities are defined as abnormal values that have clinical manifestations or require medical intervention. Clinically significant laboratory criteria included Hemoglobin <0.8 x lower limit of normal (LLN), Leukocytes >1.5 x upper limit of normal (ULN), Lymphocytes <0.8 x LLN, Lymphocytes/Leukocytes >1.2 x ULN, Neutrophils <0.8 x LLN, Neutrophils >1.2x ULN, Neutrophils/Leukocytes <0.8 x LLN, Basophils/Leukocytes >1.2 x ULN, Eosinophils >1.2 x ULN, Eosinophils/Leukocytes >1.2 x ULN, Monocytes >1.2 x ULN, Monocytes/Leukocytes (%) >1.2 x ULN, Bicarbonate <0.9 x LLN, and Glucose >1.5x ULN.
Time Frame Baseline up to Day 29

Outcome Measure Data

Analysis Population Description
The Safety Analysis Set included all participants who were randomized and received at least 1 confirmed dose of investigational product. Overall number of participants analyzed=participants evaluable for this outcome measure. Number analyzed=participants evaluable for each row.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 126 258
Hemoglobin (g/L) <0.8 x lower limit of normal (LLN)
1.6
1.2%
0
0%
Leukocytes (10^9/L) >1.5 x upper limit of normal (ULN)
0
0%
0.4
0.2%
Lymphocytes (10^9/L) <0.8 x LLN
0.8
0.6%
0
0%
Lymphocytes/Leukocytes (%) >1.2 x ULN
3.2
2.4%
1.9
0.7%
Neutrophils (10^9/L) <0.8 x LLN
0
0%
0.4
0.2%
Neutrophils (10^9/L) >1.2 x ULN
0
0%
0.4
0.2%
Neutrophils/Leukocytes (%) <0.8 x LLN
3.2
2.4%
2.7
1%
Basophils/Leukocytes (%) >1.2 x ULN
4.8
3.7%
3.1
1.2%
Eosinophils (10^9/L) >1.2 x ULN
33.1
25.3%
31.1
12%
Eosinophils/Leukocytes (%) >1.2 x ULN
29.8
22.7%
33.1
12.7%
Monocytes (10^9/L) >1.2 x ULN
0
0%
0.4
0.2%
Monocytes/Leukocytes (%) >1.2 x ULN
1.6
1.2%
1.6
0.6%
Bicarbonate (mmol/L) <0.9 x LLN
0.8
0.6%
0.8
0.3%
Glucose (mmol/L) >1.5 x ULN
0
0%
0.8
0.3%
4. Primary Outcome
Title Percentage of Participants With Clinically Significant Changes From Baseline in Vital Signs
Description Vital signs (temperature, respiratory rate, pulse, systolic and diastolic blood pressure) were obtained with participants in the seated position, after having sat/lied calmly for at least 5 minutes. Clinically significant vital signs criteria included Diastolic Blood Pressure (DBP) Value <50 mmHg, DBP Change ≥20 mmHg increase, DBP Change ≥20 mmHg decrease, Pulse Rate Value >120 beats per minute (bpm), Systolic Blood Pressure (SBP) Value <90 mmHg, SBP Change ≥30 mmHg increase, SBP Change ≥30mmHg decrease
Time Frame Baseline up to Day 29

Outcome Measure Data

Analysis Population Description
The Safety Analysis Set included all participants who were randomized and received at least 1 confirmed dose of investigational product. Overall number of participants analyzed=participants evaluable for this outcome measure. Number analyzed=participants evaluable for this outcome measure for each row.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 129 259
Diastolic Blood Pressure (mmHg) Value <50 mmHg
7.8
6%
7.3
2.8%
Diastolic Blood Pressure (mmHg) Change ≥20mmHg increase
2.3
1.8%
3.5
1.3%
Diastolic Blood Pressure (mmHg) Change ≥20mmHg decrease
3.9
3%
3.1
1.2%
Pulse Rate (bpm) Value >120 beats per minute (bpm)
2.3
1.8%
1.9
0.7%
Systolic Blood Pressure (mmHg) Value <90mmHg
23.3
17.8%
26.3
10.1%
Systolic Blood Pressure (mmHg) Change ≥30mmHg increase
0
0%
2.3
0.9%
Systolic Blood Pressure (mmHg) Change ≥30mmHg decrease
3.1
2.4%
0.8
0.3%
5. Secondary Outcome
Title Percentage of Participants Achieving Improvement in Investigator's Static Global Assessment (ISGA) at Day 29
Description ISGA assessed the severity of atopic dermatitis (AD) on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Improvement in ISGA is defined as ISGA score of 0 or 1.
Time Frame Baseline, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Number (95% Confidence Interval) [Percentage of Participants]
28.5
21.8%
41.4
15.9%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Vehicle Twice a Day (BID), Crisaborole 2% Twice a Day (BID)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.0124
Comments
Method normal approximation to response rates
Comments
Method of Estimation Estimation Parameter Risk Difference (RD)
Estimated Value 12.9
Confidence Interval (2-Sided) 95%
2.8 to 23.1
Parameter Dispersion Type:
Value:
Estimation Comments Crisaborole = Test Vehicle = Reference
6. Secondary Outcome
Title Percentage of Participants Achieving Success in ISGA at Day 29
Description ISGA assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Success in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) with at least a 2 grade improvement from Baseline.
Time Frame Baseline, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Number (95% Confidence Interval) [Percentage of Participants]
15.9
12.1%
27.6
10.6%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Vehicle Twice a Day (BID), Crisaborole 2% Twice a Day (BID)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.0078
Comments
Method normal approximation to response rates
Comments
Method of Estimation Estimation Parameter Risk Difference (RD)
Estimated Value 11.7
Confidence Interval (2-Sided) 95%
3.1 to 20.3
Parameter Dispersion Type:
Value:
Estimation Comments Crisaborole = Test Vehicle = Reference
7. Secondary Outcome
Title Change From Baseline in Peak Pruritus Numeric Rating Scale (NRS) at Week 4-for Participants ≥12 Years
Description Participant-rated pruritus score of lesions rated the severity of pruritus suffered in the past 24 hours on an 11-point NRS where 0 is no pruritus and 10 is worst itch imaginable. Change: score at Week 4 minus score at baseline.
Time Frame Baseline, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥12 years. Participants were assigned to the randomized treatment regardless of what treatment was received.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 62 137
Least Squares Mean (95% Confidence Interval) [Units on a Scale]
-0.79
-1.58
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Vehicle Twice a Day (BID), Crisaborole 2% Twice a Day (BID)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.0009
Comments
Method Mixed effect Model for Repeated Measures
Comments
Method of Estimation Estimation Parameter LS Mean of Difference
Estimated Value -0.79
Confidence Interval (2-Sided) 95%
-1.26 to -0.33
Parameter Dispersion Type:
Value:
Estimation Comments Crisaborole = Test Vehicle = Reference
8. Secondary Outcome
Title Percentage of Participants Achieving Success in ISGA Over Time
Description ISGA assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Grades for classification of severity: 0= clear (minor residual discoloration, no erythema or induration or papulation, no oozing or crusting), 1= almost clear (trace faint pink erythema, with barely perceptible induration or papulation and no oozing or crusting), 2= mild (faint pink erythema with mild induration or papulation and no oozing or crusting), 3= moderate (pink-red erythema with moderate induration or papulation with or without oozing or crusting) and 4= severe (deep or bright red erythema with severe induration or papulation and with oozing or crusting). Success in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) with at least a 2 grade improvement from Baseline.
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
0.0
0%
4.8
1.8%
Day 15
4.9
3.7%
11.6
4.5%
Day 22
10.8
8.2%
18.1
7%
Day 29
15.9
12.1%
27.6
10.6%
9. Secondary Outcome
Title Percentage of Participants Achieving Improvement in ISGA Over Time
Description ISGA (Investigator's Static Global Assessment) assessed the severity of AD on a 5-point scale ranged from 0 (clear) to 4 (maximum severe), where higher scores indicate higher degree of AD. Improvement in ISGA is defined as an ISGA score of Clear (0) or Almost Clear (1) .
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
7.8
6%
16.8
6.5%
Day 15
18.3
14%
25.6
9.8%
Day 22
25.1
19.2%
32.3
12.4%
Day 29
28.5
21.8%
41.4
15.9%
10. Secondary Outcome
Title Percent Change From Baseline in EASI Total Score Over Time
Description The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. EASI is a composite scoring of the degree of erythema, induration/papulation, excoriation, and lichenification (each scored separately) for each of four body regions, with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD.
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
-21.43
-36.65
Day 15
-37.15
-49.65
Day 22
-42.92
-55.05
Day 29
-42.79
-59.92
11. Secondary Outcome
Title Change From Baseline in Percent Body Surface Area (%BSA) Over Time
Description 4 body regions were evaluated: head and neck, upper limbs, trunk (including axillae and groin) and lower limbs (including buttocks). Scalp was excluded. BSA was calculated 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.
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
-1.75
-5.12
Day 15
-3.31
-7.60
Day 22
-4.38
-8.72
Day 29
-4.81
-9.89
12. Secondary Outcome
Title Percentage of Participants Achieving EASI-50 Over Time
Description The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. The EASI score can vary in increments of range from 0.0 to 72.0, with higher scores representing greater severity of atopic dermatitis. EASI-50 is defined as EASI score has ≥50% improvement from baseline.
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
18.5
14.1%
37.1
14.3%
Day 15
32.7
25%
58.9
22.7%
Day 22
42.2
32.2%
66.4
25.5%
Day 29
49.4
37.7%
72.7
28%
13. Secondary Outcome
Title Percentage of Participants Achieving EASI-75 Over Time
Description The EASI quantifies the severity of a participant's AD based on both severity of lesion clinical signs and the percent of BSA affected. The EASI score can vary in increments of range from 0.0 to 72.0, with higher scores representing greater severity of atopic dermatitis. EASI-75 is defined as EASI score has ≥75% improvement from baseline.
Time Frame Baseline, Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 131 260
Day 8
6.1
4.7%
11.2
4.3%
Day 15
15.4
11.8%
26.3
10.1%
Day 22
26.3
20.1%
38.2
14.7%
Day 29
27.6
21.1%
46.4
17.8%
14. Secondary Outcome
Title Change From Baseline in Peak Pruritus NRS Over Time-for Participants ≥12 Years
Description Peak Pruritus NRS is participants-rated pruritus score of lesions rated the severity of pruritus suffered in the past 24 hours on an 11-point NRS where 0 is no pruritus and 10 is worst itch imaginable. Change: score at observation minus score at baseline.
Time Frame Baseline, Week 1, Week 2, Week 3, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 62 137
Week 1
-0.38
-0.94
Week 2
-0.53
-1.26
Week 3
-0.64
-1.41
Week 4
-0.79
-1.58
15. Secondary Outcome
Title Change From Baseline in Patient Reported Itch Severity Scale Over Time-for Participants ≥6 Years and <12 Years
Description Patient Reported Itch Severity Scale is a 5-point scale indicating no itchy to very itchy (ranged from 0 to 4, where 0=no itch to 4=worst itch imaginable) for participants ≥6 and <12 years of age.
Time Frame Baseline, Week 1, Week 2, Week 3, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥ 6 and <12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 36 81
Week 1
-0.26
-0.51
Week 2
-0.22
-0.70
Week 3
-0.37
-0.78
Week 4
-0.52
-0.86
16. Secondary Outcome
Title Change From Baseline in Observer Reported Itch Severity Scale Over Time-for Participants <6 Years
Description Observer Reported Itch Severity Scale is an 11-point (ranged from 0 to 10, where 0=no itch to 10=worst itch imaginable) scale and must be completed by the observer (caregivers of participants) for participants <6 years of age.
Time Frame Baseline, Week 1, Week 2, Week 3, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged <6 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 33 42
Week 1
-0.31
-1.03
Week 2
-0.73
-1.68
Week 3
-0.96
-1.79
Week 4
-1.25
-1.95
17. Secondary Outcome
Title Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score Over Time
Description The DLQI was a 10-item questionnaire that measures the impact of skin disease on participant's quality of life. The questionnaire will be completed by all participants aged 16 years and older, based on the age at Screening Visit/time of informed consent/assent. The DLQI is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score, the more quality of life is impaired.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥16 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 49 117
Day 15
-1.1
(4.02)
-1.7
(3.57)
Day 29
-1.5
(4.67)
-1.8
(4.11)
18. Secondary Outcome
Title Change From Baseline in Children's Dermatology Life Quality Index (CDLQI) Score Over Time
Description The CDLQI was a 10-item questionnaire that measures the impact of skin disease on children's (aged 4-15 years) quality of life. The CDLQI is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score, the more quality of life is impaired.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged 4-15 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 67 127
Day 15
-1.3
(5.18)
-3.6
(4.64)
Day 29
-1.8
(6.00)
-3.9
(5.37)
19. Secondary Outcome
Title Change From Infants' Dermatitis Quality of Life Index (IDQOL) Total Score Over Time
Description The IDQOL was completed by observer for participants aged 2-3 years, based on the age at the Screening Visit/time of informed consent/assent. The IDQOL is calculated by summing the score of each question resulting in a maximum of 30 and a minimum of 0. The higher the score the more quality of life is impaired.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged 2-3 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 15 16
Day 15
-1.3
(3.34)
-3.0
(3.30)
Day 29
-0.7
(3.86)
-4.3
(4.44)
20. Secondary Outcome
Title Change From Baseline in Dermatitis Family Impact Questionnaire (DFI) Score Over Time
Description The DFI was completed by all observer for participants aged 2-17 years, based on the age at Screening Visit/time of informed consent/assent. The minimum DFI score is 0; the maximum DFI score is 30. The higher score means worse outcome.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged 2-17 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 84 148
Day 15
-0.5
(3.87)
-2.4
(4.66)
Day 29
-2.1
(4.86)
-3.0
(5.22)
21. Secondary Outcome
Title Change From Baseline in Patient-Oriented Eczema Measure (POEM) Over Time in Participants ≥12 Years
Description The POEM is a validated 7-item measure used to assess the impact of AD over the past week. The POEM contains 7 symptom based questions with responses rating number of days each symptom is experienced over the past week, from 0 (no days) to 4 (every day), with a maximum score of 28. Higher score means worse outcome.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 62 137
Day 15
-1.8
(5.25)
-5.4
(5.19)
Day 29
-3.3
(5.38)
-5.7
(6.32)
22. Secondary Outcome
Title Change From Baseline in POEM Over Time in Participants ≥2 Years and <12 Years
Description The POEM is a validated 7-item measure used to assess the impact of AD over the past week. The POEM contains 7 symptom based questions with responses rating number of days each symptom is experienced over the past week, from 0 (no days) to 4 (every day), with a maximum score of 28. Higher score means worse outcome.
Time Frame Baseline, Day 15, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥2 and <12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 69 123
Day 15
-2.5
(5.17)
-6.7
(6.09)
Day 29
-3.8
(5.33)
-7.7
(5.41)
23. Secondary Outcome
Title Change From Baseline in Weekly Average of Patient Global Impression of Severity (PGIS) Score
Description The PGIS (for participants 12 years and older) is a single item patient-rated measure of the participant's AD condition severity at a given point in time. This single item instrument uses a 7-point rating scale, which range from 1 to 7, where 1=Not present to 7=Extremely severe.
Time Frame Baseline, Week 1, Week 2, Week 3, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 62 137
Week 1
-0.24
(0.511)
-0.43
(0.649)
Week 2
-0.26
(0.692)
-0.60
(0.836)
Week 3
-0.38
(0.871)
-0.66
(0.913)
Week 4
-0.44
(0.965)
-0.71
(1.028)
24. Secondary Outcome
Title Patient Global Impression of Change (PGIC) Score
Description The PGIC (for participants 12 years and older) was used to determine global improvement as assessed by the participant or caregiver. It was used as an anchor to define a responder definition for the peak pruritus scales for 'clinically important responder' and as a sensitivity analysis for defining a 'clinical important difference' on the peak pruritus scales. This single item instrument is a 7-point rating scale, anchored by (1) 'very much improved' to (7) 'very much worse'.
Time Frame Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 62 137
Day 8
3.3
(1.05)
2.6
(1.10)
Day 15
3.2
(1.10)
2.6
(1.07)
Day 22
3.0
(1.19)
2.6
(1.04)
Day 29
2.9
(1.21)
2.5
(1.12)
25. Secondary Outcome
Title Change From Baseline in Weekly Average of Observer Reported Global Impression of Severity (OGIS) Score
Description The OGIS (for participants ≥2 and <12 years) is a single item observer-rated measure of the participant's AD condition severity at a given point in time. This single item instrument uses a 7-point rating scale, which ranged from 1 to 7, where 1=Not present to 7=Extremely severe.
Time Frame Baseline, Week 1, Week 2, Week 3, Week 4

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥2 and <12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 69 123
Week 1
-0.12
(0.593)
-0.62
(0.667)
Week 2
-0.27
(0.617)
-0.93
(0.794)
Week 3
-0.41
(0.770)
-1.03
(0.822)
Week 4
-0.54
(0.854)
-1.14
(0.893)
26. Secondary Outcome
Title Observer Reported Global Impression of Change (OGIC) Score
Description The OGIC (for participants ≥2 and <12 years ) was used to determine global improvement as assessed by the participant or caregiver. It was used as an anchor to define a responder definition for the peak pruritus scales for 'clinically important responder' and as a sensitivity analysis for defining a 'clinical important difference' on the peak pruritus scales. This single item instrument is a 7-point rating scale, anchored by (1) 'very much improved' to (7) 'very much worse'.
Time Frame Day 8, Day 15, Day 22, Day 29

Outcome Measure Data

Analysis Population Description
Overall number of participants analyzed included all participants randomized and dispensed study drug and aged ≥2 and <12 years. Participants were assigned to the randomized treatment regardless of what treatment was received. Number analyzed=participants evaluable for this outcome measure at specified time points.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
Measure Participants 69 123
Day 8
3.0
(1.08)
2.3
(0.81)
Day 15
3.0
(1.10)
2.3
(0.92)
Day 22
2.9
(1.16)
2.4
(0.99)
Day 29
2.8
(1.07)
2.2
(1.05)

Adverse Events

Time Frame Baseline up to Day 60
Adverse Event Reporting Description Same event may appear as AE and serious AE, what is presented are distinct events. Event may be categorized as serious in 1 participant and as non-serious in another participant or 1 participant may have experienced both serious and non-serious event during study. Safety analysis set included all participants who were randomized and received at least 1 confirmed dose of investigational product.
Arm/Group Title Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Arm/Group Description Vehicle was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1. Crisaborole 2% was applied BID for 28 days to the Treatable BSA identified at Baseline/Day 1 and new AD lesions that appear after the Baseline/Day 1.
All Cause Mortality
Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/131 (0%) 0/260 (0%)
Serious Adverse Events
Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 1/131 (0.8%) 1/260 (0.4%)
Investigations
Myocardial necrosis marker increased 1/131 (0.8%) 0/260 (0%)
Nervous system disorders
Carpal tunnel syndrome 0/131 (0%) 1/260 (0.4%)
Other (Not Including Serious) Adverse Events
Vehicle Twice a Day (BID) Crisaborole 2% Twice a Day (BID)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 43/131 (32.8%) 101/260 (38.8%)
General disorders
Application site discolouration 1/131 (0.8%) 9/260 (3.5%)
Application site irritation 1/131 (0.8%) 3/260 (1.2%)
Application site pain 5/131 (3.8%) 34/260 (13.1%)
Application site paraesthesia 1/131 (0.8%) 7/260 (2.7%)
Application site urticaria 0/131 (0%) 3/260 (1.2%)
Pyrexia 1/131 (0.8%) 6/260 (2.3%)
Infections and infestations
Conjunctivitis 2/131 (1.5%) 3/260 (1.2%)
Folliculitis 6/131 (4.6%) 8/260 (3.1%)
Gastroenteritis 0/131 (0%) 3/260 (1.2%)
Nasopharyngitis 4/131 (3.1%) 9/260 (3.5%)
Otitis media acute 2/131 (1.5%) 1/260 (0.4%)
Pharyngitis 2/131 (1.5%) 3/260 (1.2%)
Tonsillitis 0/131 (0%) 3/260 (1.2%)
Upper respiratory tract infection 4/131 (3.1%) 9/260 (3.5%)
Respiratory, thoracic and mediastinal disorders
Epistaxis 0/131 (0%) 3/260 (1.2%)
Skin and subcutaneous tissue disorders
Acne 3/131 (2.3%) 4/260 (1.5%)
Dermatitis atopic 15/131 (11.5%) 20/260 (7.7%)
Dermatitis contact 1/131 (0.8%) 6/260 (2.3%)
Miliaria 2/131 (1.5%) 0/260 (0%)
Pruritus 3/131 (2.3%) 0/260 (0%)
Urticaria 1/131 (0.8%) 3/260 (1.2%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.

Results Point of Contact

Name/Title Pfizer ClinicalTrials.gov Call Center
Organization Pfizer Inc.
Phone 1-800-718-1021
Email ClinicalTrials.gov_Inquiries@pfizer.com
Responsible Party:
Pfizer
ClinicalTrials.gov Identifier:
NCT04360187
Other Study ID Numbers:
  • C3291032
First Posted:
Apr 24, 2020
Last Update Posted:
Jun 7, 2022
Last Verified:
May 1, 2022