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NCT05857644 · ClinicalTrials.gov registry record · Phase 1

A Study to Compare How the Study Medicine (PF-07923568) is Processed in Participants With Different Levels of Loss of Liver Function to Healthy Participants.

A Phase 1 study, sponsored by Pfizer.

Completed
Registry status
Phase 1
Development phase
28
Enrollment target

NCT05857644: Completed Phase 1 study, sponsored by Pfizer.

NCT05857644 is a Phase 1 study that has completed, run by Pfizer. The registered enrollment target is 28 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (53% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05857644, a Phase 1 study, has completed, sponsored by Pfizer.

COMPLETED
Registry status
Phase 1
Development phase
28 participants
Enrollment target

Study Summary

The purpose of this study is to learn how the study medicine (PF-07923568) is processed in participants with liver function loss compared to healthy participants. The different levels of liver function loss can be mild, moderate or severe. This study is seeking participants who: * are male or female of 18 years of age or older. * are examined to be healthy (group with no loss of liver function). * have mild, moderate, and severe liver disease (group with loss of liver function). All participants will receive a one-time dose of 4 capsules of PF-07923568 which will be taken by mouth. All participants will remain at the study clinic for 6 days for safety review and laboratory collections. This is to see how the study medicine is being broken down by the liver over time. All participants selected in the study will be required to go through a screening period up to 28 days. A screening period is the time during which a few participants are examined to see whether they are fit for the study. During this period, the participant's medical history and past and current medications will be reviewed. A series of tests will also be performed to see if they are good to be selected for the study. If the participant meets all required criteria and are interested in continuing, the participant will be brought into the study clinic to stay overnight for 6 days. On day 6, the participant will be discharged. About 28 to 35 days after discharge, the participant will be contacted for a follow up visit either in person or by telephone. This is to check up on how the participant is doing and to conclude the study.

Primary Outcome

Cmax was the highest concentration observed directly from data

Interventions

  • DRUG PF-07923568

Trial Details

FieldValue
Enrollment Target 28 participants
Start Date 2023-06-07
Est. Completion 2024-02-07
Phase Phase 1
Pfizer

1,845 total trials

What the finished NCT05857644 record still lists

NCT05857644 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 28 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (53% lower).

The record links to 0 conditions, and to 1 intervention - of which PF-07923568 is the first listed.

NCT05857644 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT05857644 about?

NCT05857644 is a clinical study titled "A Study to Compare How the Study Medicine (PF-07923568) is Processed in Participants With Different Levels of Loss of Liver Function to Healthy Participants.". The purpose of this study is to learn how the study medicine (PF-07923568) is processed in participants with liver function loss compared to healthy participants. The different levels of liver function loss can be mild, moderate or severe. This study is seeking participants who: * are male or fema...

What is the current status of trial NCT05857644?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 28 participants. The study started on 2023-06-07. Estimated completion is 2024-02-07.

What interventions are being tested in trial NCT05857644?

The interventions under investigation include: PF-07923568 (DRUG).

Who is sponsoring clinical trial NCT05857644?

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 NCT05857644's enrollment target sits among peer trials

28 1447th of 2000 higher than 538 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 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 NCT05857644, the US trial registry maintained by the National Library of Medicine. NCT05857644 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.