A Study To Determine If Coadministration Of Tamoxifen Alters The Extent Or Rate Of Palbociclib (PD-0332991) Absorption Or Elimination In Healthy Male Volunteers

NCT ID: NCT01821066

Last Updated: 2015-10-08

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

25 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-04-30

Study Completion Date

2013-08-31

Brief Summary

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A single 125 mg oral dose of the investigational compound PD-0332991 will be administered alone and after steady-state dosing of tamoxifen to determine if coadministration of tamoxifen alters the plasma pharmacokinetics of PD-0332991 in healthy male volunteers.

Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Two-Period Fixed-Sequence Arm

This arm is comprised of two treatment periods in fixed sequence. Period 1 is 7 days long, while Period 2 is 28 days long. In Period 1 the subjects receive a single 125 mg oral dose of PD-0332991 on Day 1. In Period 2 the subjects receive 4 daily 60 mg oral doses of tamoxifen (Days 1-4), followed by 23 daily 20 mg oral doses of tamoxifen (Days 5-27). On Day 22 of Period 2 the subjects receive a second 125 mg oral dose of PD-0332991.

Group Type EXPERIMENTAL

PD-0332991 alone

Intervention Type DRUG

PD-0332991 is administered alone as a single oral 125 mg dose on Day 1 of Period 1.

Tamoxifen 60 mg

Intervention Type DRUG

On Days 1-4 of Period 2, tamoxifen is administered daily as 60 mg oral doses (using three 20mg tablets).

Tamoxifen 20 mg

Intervention Type DRUG

On Days 5-27 of Period 2, tamoxifen is administered daily as 20 mg oral doses.

PD-0332991 combination

Intervention Type DRUG

PD-0332991 is administered in combination with tamoxifen on Day 22 of Period 2 as a single 125 mg oral dose.

Interventions

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PD-0332991 alone

PD-0332991 is administered alone as a single oral 125 mg dose on Day 1 of Period 1.

Intervention Type DRUG

Tamoxifen 60 mg

On Days 1-4 of Period 2, tamoxifen is administered daily as 60 mg oral doses (using three 20mg tablets).

Intervention Type DRUG

Tamoxifen 20 mg

On Days 5-27 of Period 2, tamoxifen is administered daily as 20 mg oral doses.

Intervention Type DRUG

PD-0332991 combination

PD-0332991 is administered in combination with tamoxifen on Day 22 of Period 2 as a single 125 mg oral dose.

Intervention Type DRUG

Other Intervention Names

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PD-0332991, palbociclib PD-0332991, palbociclib

Eligibility Criteria

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Inclusion Criteria

* Healthy male between the ages of 18 and 55 years of age inclusive
* Body mass index (BMI) between 17.5 and 30.5 kg/m2
* Willing and able to comply with all scheduled visits, treatment plan, laboratory tests, and other study procedures

Exclusion Criteria

* a positive urine drug screen
* a supine systolic blood pressure \>140 mm Hg, or diastolic blood pressure \>90 mm H.
* Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease.
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

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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https://trialinfoemail.pfizer.com/pages/landing.aspx?StudyID=A5481026

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Other Identifiers

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A5481026

Identifier Type: -

Identifier Source: org_study_id

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