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CompletedNCT00793000Updated May 4, 2011

Safety And Pharmacokinetics Study Of PF-04287881 In Healthy Adults

A Phase 1 interventional study of PF-04287881 and Placebo in Respiratory Tract Infections, sponsored by Pfizer. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2011-05-04.

Sponsored by Pfizer · Phase 1 and Interventional

Phase
Phase 1
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The purpose of this study is to determine the safety, tolerability and pharmacokinetics of PF-04287881 after a single oral dose in healthy adult volunteers.

02

Conditions studied

  • Respiratory Tract Infections

Keywords

  • Safety tolerability pharmacokinetics PK first in human FIH
03

In context

Respiratory Tract Infections

1,031 studies on the registry are indexed under Respiratory Tract Infections; 144 are open to participants now.

This study's enrollment of 80 is below the median of 199 across 698 interventional studies indexed under Respiratory Tract Infections.

Browse Respiratory Tract Infections studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Volunteers willing and able to be confined to the Clinical Research Unit and comply with study schedule.
  • Women of non-childbearing potential only.
  • Japanese subjects muct have 4 Japanese grandparents who were born in Japan.

Exclusion criteria

Exclusion Criteria:

  • Previous antibiotic use within 14 days prior to dosing.
  • Use of antibiotics during hospitalization within 90 days prior to dosing.
  • History of sensitivity to macrolides or ketolides.
  • Presence of clinically significant eye conditions (other than corrective lenses).
05

Study design

Phase
Phase 1
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
80 participants (actual)

Study arms

  • Experimental
    Cohort 1

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 2

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 3

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 4

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 5

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 6

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 7

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 8

    Japanese volunteers, low dose previously tested (based on PK)

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 9

    Japanese volunteers, intermediate dose previously tested (based on PK)

    Drug: PF-04287881 · Drug: Placebo

  • Experimental
    Cohort 10

    Japanese volunteers, high dose previously tested (based on safety)

    Drug: PF-04287881 · Drug: Placebo

Interventions

  • DrugPF-04287881

    75 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 75 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    150 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 150 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    300 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 300 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    750 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 750 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    1000 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 1000 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    1250 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 1250 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    1500 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 1500 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    300 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 300 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    750 mg oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 750 mg oral dose (prepared solution), given once

  • DrugPF-04287881

    1000 mg based on safety and PK from previous cohorts; oral dose (prepared solution) given once

  • DrugPlacebo

    placebo to match 1000 mg oral dose (prepared solution), given once

06

What researchers measure

Primary outcomes

  1. Evaluation of safety and tolerability of PF-04287881 after single oral dose.

    Time frame: Daily up to discharge, follow-up 7-10 days after dosing

Secondary outcomes

  1. Pharmacokinetics of PF-04287881 after a single oral dose.

    Time frame: Pre-dose; Multiple timepoints on Day 1; 24, 36 hours Day 2; Single sample on Days 3-7.

07

Study locations

1 site
  • Pfizer Investigational Site
    New Haven, Connecticut 06511-5473, United States
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 4, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00793000
Lead sponsor
Pfizer
First posted
Nov 18, 2008
Start date
Nov 2008
Primary completion
Dec 2009
Completion
Dec 2009
Last update
May 4, 2011

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2011. You cannot join it, but the record below documents what was studied.

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