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NCT03915496 · ClinicalTrials.gov registry record · Phase 2

Study Evaluating the Mechanism of Action of PF-04965842 Monotherapy for Moderate-to-severe Atopic Dermatitis

A Phase 2 study, sponsored by Pfizer.

Completed
Registry status
Phase 2
Development phase
46
Enrollment target

NCT03915496: Completed Phase 2 study, sponsored by Pfizer.

NCT03915496 is a Phase 2 study that has completed, run by Pfizer. The registered enrollment target is 46 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (65% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03915496, a Phase 2 study, has completed, sponsored by Pfizer.

COMPLETED
Registry status
Phase 2
Development phase
46 participants
Enrollment target

Study Summary

B7451037 is a randomized, double-blind, placebo-controlled, parallel-group, Phase 2a study to investigate the mechanism of action of PF-04965842 by correlating efficacy outcomes with changes from baseline in key skin and blood biomarkers in adult participants at least 18 years of age with moderate-to-severe atopic dermatitis. Participants will be screened within 28 days prior to the first dose of study intervention to confirm eligibility. A total of approximately 51 participants will be randomized in a 1:1:1 ratio to receive PF-04965842 200 mg once daily (QD), PF004965842 100 mg QD, or matching placebo QD for 12 weeks. At the end of the 12-week study treatment, qualified participants will have the option to enter the long-term extension study B7451015 (NCT03422822). Participants discontinuing early from this study will undergo a 4-week off-treatment follow-up period.

Primary Outcome

Mean fold-changes from baseline at Week 12 in the biomarkers for general inflammation (Matrix Metallopeptidase \[MMP\]12), hyperplasia (Keratin \[KRT\]16), Th2 immune response (C-C motif chemokine ligand \[CCL\]17, CCL18, CCL26), and Th22 immune response (S100 calcium binding protein A \[S100A\]8, S100A9, S100A12), in lesional (LS) and non-lesional (NL) skin tissues, respectively. Expression levels from RT-PCR are normalized to the housekeeping gene RPLP0 by negatively transforming the Ct values

Interventions

  • DRUG Placebo
  • DRUG PF-04965842 100 mg
  • DRUG PF-04965842 200 mg

Trial Details

FieldValue
Enrollment Target 46 participants
Start Date 2020-06-18
Est. Completion 2021-11-16
Phase Phase 2
Pfizer

1,845 total trials

What the finished NCT03915496 record still lists

NCT03915496 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 46 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (65% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT03915496 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03915496 about?

NCT03915496 is a clinical study titled "Study Evaluating the Mechanism of Action of PF-04965842 Monotherapy for Moderate-to-severe Atopic Dermatitis". B7451037 is a randomized, double-blind, placebo-controlled, parallel-group, Phase 2a study to investigate the mechanism of action of PF-04965842 by correlating efficacy outcomes with changes from baseline in key skin and blood biomarkers in adult participants at least 18 years of age with moderate-t...

What is the current status of trial NCT03915496?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 46 participants. The study started on 2020-06-18. Estimated completion is 2021-11-16.

What interventions are being tested in trial NCT03915496?

The interventions under investigation include: Placebo (DRUG), PF-04965842 100 mg (DRUG), PF-04965842 200 mg (DRUG).

Who is sponsoring clinical trial NCT03915496?

This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03915496's enrollment target sits among peer trials

46 1286th of 2000 higher than 705 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03915496, the US trial registry maintained by the National Library of Medicine. NCT03915496 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.