Study to Investigate Efficacy and Safety of PF-04965842 in Subjects Aged 12 Years and Over With Moderate to Severe Atopic Dermatitis With the Option of Rescue Treatment in Flaring Subjects
Purpose
B7451014 is a Phase 3 study to investigate PF-04965842 in patients aged 12 years and over with a minimum body weight of 40 kg who have moderate to severe atopic dermatitis. Subjects responding well to an initial open-label 12 week treatment of PF-04965842 (200 mg) taken orally once daily (QD) will be identified and randomized in a double-blind manner to receive 200 mg QD PF-04965842, 100 mg QD PF-04965842, or QD placebo. Efficacy and safety of 2 doses of PF-04965842 will be evaluated relative to placebo over 40 weeks. Subjects experiencing significant worsening of their symptoms, i.e., protocol-defined flare, enter 12 weeks rescue treatment and receive 200 mg PF-04965842 together with a marketed topical medicine. Eligible patients will have the option to enter a long-term extension study after completing the initial 12 week treatment, the 12 week rescue treatment, and the 40 week blinded treatment.
Conditions
- Dermatitis
- Dermatitis, Atopic
- Eczema
- Skin Diseases
- Skin Diseases, Genetic
- Genetic Diseases, Inborn
- Skin Diseases, Eczematous
- Hypersensitivity
- Hypersensitivity, Immediate
- Immune System Diseases
Eligibility
- Eligible Ages
- Over 12 Years
- Eligible Genders
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- 12 years of age or older with a minimum body weight of 40 kg - Diagnosis of atopic dermatitis (AD) for at least 1 year and current status of moderate to severe disease (>= the following scores: BSA10%, IGA 3, EASI 16, Pruritus NRS 4) - Recent history of inadequate response or inability to tolerate topical AD treatments or require systemic treatments for AD control
Exclusion Criteria
- Unwilling to discontinue current AD medications prior to the study or require treatment with prohibited medications during the study - Prior treatment with JAK inhibitors - Other active nonAD inflammatory skin diseases or conditions affecting skin - Medical history including thrombocytopenia, coagulopathy or platelet dysfunction, Q wave interval abnormalities, current or history of certain infections, cancer, lymphoproliferative disorders and other medical conditions at the discretion of the investigator - Pregnant or breastfeeding women, or women of childbearing potential who are unwilling to use contraception
Study Design
- Phase
- Phase 3
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Arm Groups
Arm | Description | Assigned Intervention |
---|---|---|
Experimental PF-04965842 100 mg QD |
Double-blind randomized treatment following open label run-in period. |
|
Experimental PF-04965842 200 mg QD |
Double-blind randomized treatment following open label run-in period. |
|
Placebo Comparator Placebo QD |
Double-blind randomized treatment following open label run-in period. |
|
More Details
- Status
- Completed
- Sponsor
- Pfizer
Study Contact
Detailed Description
Responder criteria for randomization at week 12 are defined as a) achieving an IGA of clear (0) or almost clear (1) (on a 5 point scale), b) a reduction from IGA baseline of 2 or more points, and c) reaching an EASI-75 response compared to baseline. Flare requiring rescue treatment is defined as a loss of at least 50% of the EASI response at Week 12 and an IGA score of 2 or higher.