A Study to Learn About Study Medicine Called PF-08049820 in People With Eczema
A PHASE 2B, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, DOSE-RANGING STUDY TO EVALUATE THE EFFICACY AND SAFETY OF PF-08049820 IN ADULT PARTICIPANTS WITH MODERATE TO SEVERE ATOPIC DERMATITIS
2 other identifiers
interventional
200
2 countries
10
Brief Summary
The purpose of this study is to learn if the study medicine (PF-08049820) is safe and effective for the treatment of atopic dermatitis (AD), also known as eczema, or atopic eczema. People with this condition may have severe itching and rashes on the skin. The study is seeking participants who:
- 1.Are 18 years of age or more;
- 2.Were confirmed to have AD at least 6 months ago;
- 3.Do not have a suitable prescribed medicine for AD;
- 4.Are considered by their doctors to have moderate to severe AD.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Nov 2025
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 9, 2025
CompletedFirst Posted
Study publicly available on registry
October 14, 2025
CompletedStudy Start
First participant enrolled
November 20, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 23, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 23, 2027
February 24, 2026
February 1, 2026
1.8 years
October 9, 2025
February 20, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Percent change from baseline in Eczema Area and Severity Index (EASI) total score at Week 12
Week 12
Secondary Outcomes (5)
Response based on achieving EASI75 (≥75% improvement from baseline) at scheduled time points
Day 1 through Week 16
Percent change from baseline in EASI total score at scheduled time points other than Week 12
Day 1 through Week 16
Response based on achieving Validated Investigator's Global Assessment (vIGA) score of clear (0) or almost clear (1) (on a 5-point scale) and a reduction from baseline of >2 points at scheduled time points
Day 1 through Week 16
Response based on achieving ≥4 points of reduction from baseline in weekly averages of Peak Pruritus-Numerical Rating Scale (PP-NRS4) at scheduled time points
Day 1 through Week 16
Incidence of treatment emergent Adverse Events (AEs) and Serious Adverse Events (SAEs), and clinically significant changes in laboratory tests, vital signs and ECGs
Day 1 through Week 16
Study Arms (6)
Arm 1
EXPERIMENTALTablets taken by mouth daily for 12 weeks
Arm 2
EXPERIMENTALTablets taken by mouth daily for 12 weeks
Arm 3
EXPERIMENTALTablets taken by mouth daily for 12 weeks
Arm 4
PLACEBO COMPARATORTablets taken by mouth daily for 12 weeks
Arm 5 (Optional)
EXPERIMENTALTablets taken by mouth daily for 12 weeks
Arm 6 (Optional)
PLACEBO COMPARATORTablets taken by mouth daily for 12 weeks
Interventions
Eligibility Criteria
You may qualify if:
- Participants must meet the following criteria:
- Are 18 years of age or older
- Have clinical diagnosis of AD for at least 6 months prior to Day 1 and have diagnosis of AD confirmed by photographs
- Have moderate to severe AD as defined by the following at screening and baseline visits:
- Affected body surface area (BSA) greater than or equal to 10% and up to 60%;
- Validated Investigator's Global Assessment (vIGA) greater than or equal to 3;
- Eczema Area and Severity Index (EASI) greater than or equal to 16;
- AND
- Peak Pruritis Numeric Rating Scale (PP-NRS) greater than or equal to 4 at screening and a weekly average of greater than or equal to 4 at baseline visit
- Do not have a suitable prescribed medicine for AD.
- Body Mass Index (BMI) of 17.5 to 40 kg/m2 and a total body weight greater than 45 kg (100 lbs)
You may not qualify if:
- Participants must not meet the following criteria:
- Have an infection that requires treatment
- Have other skin conditions other than AD
- Have severe uncontrolled asthma
- Regular use (more than 2 visits per week) of a tanning booth or phototherapy for AD within 4 weeks of the screening visit
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pfizerlead
Study Sites (10)
Clinical Science Institute
Santa Monica, California, 90404, United States
Gsi Clinical Research
Margate, Florida, 33063, United States
Skin Research of South Florida
Miami, Florida, 33173, United States
Goodlettsville Dermatology Research
Goodlettsville, Tennessee, 37072, United States
Hattori Dermatology Clinic
Takasaki, Gunma, 370-0071, Japan
Kosugi Dermatology Clinic
Kawasaki-shi, Kanagawa, 211-0063, Japan
Queen's Square Medical Facilities
Yokohama, Kanagawa, 220-6208, Japan
Dermatology and Ophthalmology Kume Clinic
Sakai, Osaka, 593-8324, Japan
Nihonbashi Sakura Clinic
Chuo-ku, Tokyo, 103-0025, Japan
Fukuwa Clinic
Chuo-ku, Tokyo, 104-0031, Japan
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 9, 2025
First Posted
October 14, 2025
Study Start
November 20, 2025
Primary Completion (Estimated)
August 23, 2027
Study Completion (Estimated)
August 23, 2027
Last Updated
February 24, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.