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NCT03715829 · ClinicalTrials.gov registry record · Phase 2

A Phase 2b Study To Evaluate The Efficacy And Safety Profile Of PF-06651600 And PF-06700841 In Active Non-segmental Vitiligo Subjects

A Phase 2 study, sponsored by Pfizer.

Completed
Registry status
Phase 2
Development phase
366
Enrollment target

NCT03715829: Completed Phase 2 study, sponsored by Pfizer.

NCT03715829 is a Phase 2 study that has completed, run by Pfizer. The registered enrollment target is 366 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (175% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03715829, a Phase 2 study, has completed, sponsored by Pfizer.

COMPLETED
Registry status
Phase 2
Development phase
366 participants
Enrollment target

Study Summary

This is a Phase 2b, randomized, double blind, parallel group, multicenter study with an extension period. The study will have a maximum duration of approximately 60 weeks. This includes an up to 4 weeks Screening Period, a 24 week dose ranging period, an up to 24 week extension period and a 8 week Follow up Period.

Primary Outcome

Central read F-VASI was assessed based on the facial photographs taken at the site. Central read F-VASI was calculated using a formula that included contribution of affected facial surface areas showing all 6 different depigmentation rates (0.1, 0.25, 0.5, 0.75, 0.9 and 1) with a modified method: F-VASI (central read)=Ʃ \[Affected Facial Surface Area\] × 4 × \[Depigmentation Rates\]. Face was defined as the area from the hairline on top of the forehead to the jawline at the bottom of the cheeks.

Interventions

  • DRUG PF-06651600

Trial Details

FieldValue
Enrollment Target 366 participants
Start Date 2018-11-26
Est. Completion 2021-02-05
Phase Phase 2
Pfizer

1,845 total trials

What the finished NCT03715829 record still lists

NCT03715829 is an interventional study that assigns participants to a tested intervention. The registered 366 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (175% higher).

The record links to 0 conditions, and to 1 intervention - of which PF-06651600 is the first listed.

NCT03715829 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03715829 about?

NCT03715829 is a clinical study titled "A Phase 2b Study To Evaluate The Efficacy And Safety Profile Of PF-06651600 And PF-06700841 In Active Non-segmental Vitiligo Subjects". This is a Phase 2b, randomized, double blind, parallel group, multicenter study with an extension period. The study will have a maximum duration of approximately 60 weeks. This includes an up to 4 weeks Screening Period, a 24 week dose ranging period, an up to 24 week extension period and a 8 week F...

What is the current status of trial NCT03715829?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 366 participants. The study started on 2018-11-26. Estimated completion is 2021-02-05.

What interventions are being tested in trial NCT03715829?

The interventions under investigation include: PF-06651600 (DRUG).

Who is sponsoring clinical trial NCT03715829?

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 NCT03715829's enrollment target sits among peer trials

366 121st of 2000 higher than 1,880 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 NCT03715829, the US trial registry maintained by the National Library of Medicine. NCT03715829 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.