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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT05995964




Registration number
NCT05995964
Ethics application status
Date submitted
26/07/2023
Date registered
16/08/2023
Date last updated
26/06/2025

Titles & IDs
Public title
A Study To Learn About Two Study Medicines (PF-07275315 And PF-07264660) In People Who Have Moderate To Severe Atopic Dermatitis
Scientific title
A PHASE 2, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY TO INVESTIGATE THE EFFICACY AND SAFETY OF PF-07275315 AND PF-07264660 IN ADULT PARTICIPANTS WITH MODERATE-SEVERE ATOPIC DERMATITIS
Secondary ID [1] 0 0
2023-505218-68-00
Secondary ID [2] 0 0
C4531002
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Atopic Dermatitis 0 0
Condition category
Condition code
Skin 0 0 0 0
Dermatological conditions
Skin 0 0 0 0
Other skin conditions
Inflammatory and Immune System 0 0 0 0
Other inflammatory or immune system disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - PF-07275315
Treatment: Drugs - PF-07264660
Other interventions - Placebo

Experimental: Stage 1_PF-07275315 - Stage 1 PF-07275315 Injections on Day 1, Week 1, Week 2, Week 4, Week 6, Week 8, Week 10 and Week 12.

Experimental: Stage 1_PF-07264660 - Stage 1 PF-07264660 Injections on Day 1, Week 1, Week 2, Week 4, Week 6, Week 8, Week 10 and Week 12.

Experimental: Stage 1_Placebo - Stage 1 Placebo Injections on Day 1, Week 1, Week 2, Week 4, Week 6, Week 8, Week 10 and Week 12.

Experimental: Stage 2_PF-07275315 _Dose A - Stage 2 PF-07275315

Injections on Day 1, Week 4, Week 8 and Week 12.

Experimental: Stage 2_PF-07275315 _Dose B - Stage 2 PF-07275315

Injections on Day 1, Week 4, Week 8 and Week 12.

Experimental: Stage 2_PF-07275315 _Dose C - Stage 2 PF-07275315

Injections on Day 1, Week 4, Week 8 and Week 12.

Experimental: Stage 2_PF-07275315 _Dose D - Stage 2 PF-07275315 or PF-07264660 Injections on Day 1, Week 4, Week 8 and Week 12.

Experimental: Stage 2_Placebo - Stage 2 Placebo Injections on Day 1, Week 4, Week 8 and Week 12.

Experimental: Stage 3_Placebo+PF-07275315_Dose A - Stage 3 Placebo for 16 weeks followed by PF-07275315 400 mg load + 200 mg Q4W for 16 weeks.

Experimental: Stage 3_PF-07275315_Dose B - Stage 3 PF-07275315 800 mg load + 400 mg Q4W for 32 weeks.


Treatment: Drugs: PF-07275315
subcutaneous injection

Treatment: Drugs: PF-07264660
subcutaneous injection

Other interventions: Placebo
subcutaneous injection
Intervention code [1] 0 0
Treatment: Drugs
Intervention code [2] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
The number of participants achieving =75% improvement in EAS175 from baseline at week16.
Assessment method [1] 0 0
EASI75 (=75% improvement from baseline) at Week 16
Timepoint [1] 0 0
Week 16
Secondary outcome [1] 0 0
The number and % of participants achieving vIGA score of clear (0) or almost clear (1) (on a 5-point scale) and a reduction from baseline of =2 points at all scheduled time points
Assessment method [1] 0 0
vIGA score of clear (0) or almost clear (1) (on a 5-point scale) and a reduction from baseline of =2 points at all scheduled time points
Timepoint [1] 0 0
Screening through study completion, an average of 36 weeks.
Secondary outcome [2] 0 0
The number and % of participants achieving EASI75 (=75% improvement from baseline) at scheduled time points except Week 16
Assessment method [2] 0 0
EASI75 (=75% improvement from baseline) at scheduled time points except Week 16
Timepoint [2] 0 0
All scheduled timepoints other than Week 16, screening through study completion, an average of 36 weeks.
Secondary outcome [3] 0 0
The number and % of participants achieving a Percent change from baseline in EASI total score at scheduled time points
Assessment method [3] 0 0
Percent change from baseline in EASI total score at scheduled time points
Timepoint [3] 0 0
Screening through study completion, an average of 36 weeks.
Secondary outcome [4] 0 0
The number and % of participants with treatment emergent AEs
Assessment method [4] 0 0
Incidence of treatment emergent AEs
Timepoint [4] 0 0
Screening - Week 36
Secondary outcome [5] 0 0
The number and % of participants with clinically significant changes in vital signs
Assessment method [5] 0 0
Incidence of clinically significant changes in vital signs
Timepoint [5] 0 0
Screening - Week 36
Secondary outcome [6] 0 0
The number and % of participants with clinically significant changes in ECG
Assessment method [6] 0 0
Incidence of clinically significant changes in ECG
Timepoint [6] 0 0
Screening - Week 36
Secondary outcome [7] 0 0
The number and % of participants with clinically significant changes in laboratory tests
Assessment method [7] 0 0
Incidence of clinically significant changes in laboratory tests
Timepoint [7] 0 0
Screening - Week 36

Eligibility
Key inclusion criteria
Must meet the following AD criteria:

1. Participants aged 18 years or older
2. Clinical diagnosis of chronic atopic dermatitis:

1. for at least 6 months prior to Day 1 with diagnosis confirmed by photograph;
2. Either an inadequate response to treatment with standard of care treatments (excluding systemic immunosuppressant treatments) for at least 4 consecutive weeks within 6 to 12 months of the first dose of the study intervention; OR documented reason why topical treatments are considered medically inappropriate;
3. Moderate to severe AD defined as having an affected BSA =10%, vIGA =3, and EASI =16 at both the screening and baseline visits).
4. Bio-experienced cohort-partial or non-responder to anti-inflammatory proteins, intolerance or AEs to anti-inflammatory proteins or loss of access to anti-inflammatory proteins.

Other
3. BMI of 17.5 to 40 kg/m2; and a total body weight >45 kg (100 lbs).
4. Willing and able to comply with all scheduled visits, treatment plan, laboratory tests and other study procedures.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Medical Conditions:

1. Significant allergic or autoimmune diseases, other than AD and well controlled mild to moderate including but not limited to: SLE or other complement disorders; Type 1 diabetes; IBD; Multiple Sclerosis.
2. History of significant allergic reactions, including anaphylaxis and reactions to protein therapeutics, including hypersensitivity to PF-07275315 or PF-07264660 or to the excipients of the formulated drug products. Participants with significant reactions to single, identified, avoidable allergens (eg, peanut allergy) may be eligible if avoidance of these allergens during the study is feasible.
3. Any of the following acute or chronic infections or infection history:

1. Active infection (including helminth or parasitic) requiring treatment within 2 weeks prior to screening;
2. Infection requiring hospitalization or systemic (parenteral) antimicrobial therapy within 60 days prior to Day 1;
3. Active chronic or acute skin infection requiring treatment with systemic [(not IV)] antibiotics, antivirals, antiparasitics, antiprotozoals, or antifungals within 2 weeks prior to Day 1, or superficial skin infections (requiring no more than topical anti-infective treatments) within 1 week prior to Day 1.
4. Any infection judged to be an opportunistic infection or clinically significant by the investigator, within 6 months prior to Day 1;
4. History of or current evidence of inflammatory skin conditions (eg, psoriasis, seborrheic dermatitis, lupus) at the time of Day 1 that could interfere with evaluation of AD or response to treatment.
5. Any medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.

- Prior/Concomitant Therapy:
6. Current use of any prohibited concomitant medication(s).
7. Phototherapy narrowband UVB (NB UVB) or broadband phototherapy or regular use (more than 2 visits per week) of a tanning booth/parlor within 4 weeks prior to Day 1.

- Prior/Concurrent Clinical Study Experience:
8. Previous administration with an investigational product (drug or vaccine) within 30 days (or as determined by the local requirement) or 5 half lives preceding the first dose of study intervention used in this study (whichever is longer).
9. HIV infection, or infection with hepatitis B or hepatitis C viruses according to protocol-specific testing algorithm.
10. Evidence of active or latent TB, or inadequately treated infection with Mycobacterium TB. A participant who is currently being treated for active or latent TB infection must be excluded from this study.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 2
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
22/08/2023
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
14/11/2026
Actual
Sample size
Target
340
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,VIC,WA
Recruitment hospital [1] 0 0
Momentum Darlinghurst - Darlinghurst
Recruitment hospital [2] 0 0
Australian Clinical Research Network - Sydney
Recruitment hospital [3] 0 0
Box Hill Hospital - Box Hill
Recruitment hospital [4] 0 0
Dr Rodney Sinclair Pty Ltd - East Melbourne
Recruitment hospital [5] 0 0
Fremantle Dermatology - Fremantle
Recruitment postcode(s) [1] 0 0
2010 - Darlinghurst
Recruitment postcode(s) [2] 0 0
NSW 2035 - Sydney
Recruitment postcode(s) [3] 0 0
3128 - Box Hill
Recruitment postcode(s) [4] 0 0
3002 - East Melbourne
Recruitment postcode(s) [5] 0 0
6160 - Fremantle
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alabama
Country [2] 0 0
United States of America
State/province [2] 0 0
Arizona
Country [3] 0 0
United States of America
State/province [3] 0 0
California
Country [4] 0 0
United States of America
State/province [4] 0 0
Colorado
Country [5] 0 0
United States of America
State/province [5] 0 0
Florida
Country [6] 0 0
United States of America
State/province [6] 0 0
Indiana
Country [7] 0 0
United States of America
State/province [7] 0 0
Maryland
Country [8] 0 0
United States of America
State/province [8] 0 0
Michigan
Country [9] 0 0
United States of America
State/province [9] 0 0
Nebraska
Country [10] 0 0
United States of America
State/province [10] 0 0
New York
Country [11] 0 0
United States of America
State/province [11] 0 0
Ohio
Country [12] 0 0
United States of America
State/province [12] 0 0
Oklahoma
Country [13] 0 0
United States of America
State/province [13] 0 0
Oregon
Country [14] 0 0
United States of America
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Pennsylvania
Country [15] 0 0
United States of America
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Rhode Island
Country [16] 0 0
United States of America
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South Carolina
Country [17] 0 0
United States of America
State/province [17] 0 0
Tennessee
Country [18] 0 0
United States of America
State/province [18] 0 0
Texas
Country [19] 0 0
United States of America
State/province [19] 0 0
Virginia
Country [20] 0 0
Canada
State/province [20] 0 0
Manitoba
Country [21] 0 0
Canada
State/province [21] 0 0
Ontario
Country [22] 0 0
Canada
State/province [22] 0 0
Quebec
Country [23] 0 0
China
State/province [23] 0 0
Beijing
Country [24] 0 0
China
State/province [24] 0 0
Fujian
Country [25] 0 0
China
State/province [25] 0 0
Guangdong
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China
State/province [26] 0 0
Hebei
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China
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Hubei
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China
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Hunan
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China
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Jiangxi
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China
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Jilin
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China
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Shaanxi
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China
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Shanghai
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China
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Yunnan
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China
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Zhejiang
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China
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Chengdu
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Germany
State/province [36] 0 0
Niedersachsen
Country [37] 0 0
Germany
State/province [37] 0 0
Sachsen-anhalt
Country [38] 0 0
Japan
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Kanagawa
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Japan
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Osaka
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Japan
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Tokyo
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Poland
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Dolnoslaskie
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Malopolskie
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Poland
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Wielkopolskie
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Poland
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Katowice
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Poland
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Slaskie
Country [46] 0 0
Poland
State/province [46] 0 0
Swietokrzyskie

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Pfizer
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Public notes

Contacts
Principal investigator
Name 0 0
Pfizer CT.gov Call Center
Address 0 0
Pfizer
Country 0 0
Phone 0 0
Email 0 0
Contact person for public queries
Name 0 0
Pfizer CT.gov Call Center
Address 0 0
Country 0 0
Phone 0 0
1-800-718-1021
Email 0 0
ClinicalTrials.gov_Inquiries@pfizer.com
Contact person for scientific queries

Data sharing statement


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.

Results not provided in https://clinicaltrials.gov/study/NCT05995964