Multiple Oral Dose Safety, Tolerability And Pharmacokinetic Study Of PF-04287881 In Healthy Adult Subjects

NCT ID: NCT01026545

Last Updated: 2011-05-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

39 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-12-31

Study Completion Date

2010-07-31

Brief Summary

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This study is a randomized, investigator blind, subject blind, sponsor-open, placebo controlled, multiple dose escalating, sequential, parallel cohort study of PF-04287881. Subjects will undergo screening procedures within 28 days prior to dosing. At least 1 day after the Screening visit, eligible subjects who meet the entry criteria will be admitted to the Clinical Research Unit (CRU) and confined in the unit until discharge on Day 15.

Approximately 60 healthy volunteers (20 volunteers of Japanese origin for Cohorts 5 and 6), 18 to 55 years of age, males and females (women of non childbearing potential only) will be enrolled and randomized in a 4:1 ratio to treatment with either PF-04287881 or placebo within each cohort. Each cohort will have a 10 day dosing period and each will consist of 10 subjects (8 active and 2 placebo). In each cohort, each subject will receive a single daily oral dose of either placebo or PF-04287881 under fasted state for 10 days.

Detailed Description

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Following a Serious Adverse Event (potential Hy's Law case), a risk-benefit assessment review of all preliminary safety data, and a review by Pfizer's internal hepatic injury advisory panel, it was concluded that PF-04287881 had an unacceptable therapeutic window. The FDA was notified of our intention to discontinue development as of 09April2010.

Conditions

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Respiratory Tract Infections

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Cohort 1

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

500 mg once daily for 10 days

Placebo

Intervention Type DRUG

To match 500 mg dose once daily for 10 days

Cohort 2

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

750 mg once daily for 10 days

Placebo

Intervention Type DRUG

To match 750 mg dose once daily for 10 days

Cohort 3

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

1100 mg once daily for 10 days

Placebo

Intervention Type DRUG

To match 1100 mg dose once daily for 10 days

Cohort 4 (optional)

If intermediate or repeat dose level is needed; dose will not exceed 1100 mg.

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

Optional cohort with dose not greater than 1100 mg

Placebo

Intervention Type DRUG

Optional cohort to match dose not greater than 1100 mg

Cohort 5 (Japanese)

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

750 mg dose once daily for 10 days

Placebo

Intervention Type DRUG

To match 750 mg dose once daily for 10 days

Cohort 6 (Japanese)

Group Type EXPERIMENTAL

PF-04287881

Intervention Type DRUG

1100 mg dose once daily for 10 days

Placebo

Intervention Type DRUG

To match 1100 mg dose once daily for 10 days

Interventions

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PF-04287881

500 mg once daily for 10 days

Intervention Type DRUG

Placebo

To match 500 mg dose once daily for 10 days

Intervention Type DRUG

PF-04287881

750 mg once daily for 10 days

Intervention Type DRUG

Placebo

To match 750 mg dose once daily for 10 days

Intervention Type DRUG

PF-04287881

1100 mg once daily for 10 days

Intervention Type DRUG

Placebo

To match 1100 mg dose once daily for 10 days

Intervention Type DRUG

PF-04287881

Optional cohort with dose not greater than 1100 mg

Intervention Type DRUG

Placebo

Optional cohort to match dose not greater than 1100 mg

Intervention Type DRUG

PF-04287881

750 mg dose once daily for 10 days

Intervention Type DRUG

Placebo

To match 750 mg dose once daily for 10 days

Intervention Type DRUG

PF-04287881

1100 mg dose once daily for 10 days

Intervention Type DRUG

Placebo

To match 1100 mg dose once daily for 10 days

Intervention Type DRUG

Eligibility Criteria

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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 must have 4 Japanese grandparents who were born in Japan.

Exclusion Criteria

* Previous antibiotic use within 14 days prior to dosing.
* Use of antibiotics during hospitalization within 90 days prior to dosing.
* History of hypersensitivity to macrolides or ketolides.
* Presence of clinically significant eye conditions (other than corrective lenses).
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Pfizer, Inc.

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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Pfizer Investigational Site

New Haven, Connecticut, United States

Site Status

Countries

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United States

Related Links

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Other Identifiers

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B0581002

Identifier Type: -

Identifier Source: org_study_id

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