A Study To Evaluate The Effect Of Rifampin On Pharmacokinetics Of PF-06463922 In Healthy Volunteers

Pfizer12 enrolled

Overview

The purpose of this study is to estimate the effect of rifampin on the single dose PK of PF-06463922.

This will be a Phase 1, open-label, 2-period, 2-treatment, fixed-sequence, cross-over study in approximately 12 healthy subjects employing administration of a single oral dose of PF-06463922 in the fasted state alone, and with multiple dosing of rifampin 600 mg once a day to estimate the effect of multiple dose rifampin on the single dose PK of PF-06463922.

Study Type

INTERVENTIONAL

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Healthy

Interventions

PF-06463922DRUG

100 mg oral dose on day 1 in period 1 and on day 8 in period 2

rifampinDRUG

600 mg QD from day 1 to day 12 in period 2.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 55 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Healthy female subjects of non-childbearing potential and/or male subjects who, at the time of screening, are between the ages of 18 and 55 years, inclusive * Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight \>50 kg (110 lbs) Exclusion Criteria: * Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease * Any condition possibly affecting drug absorption * Positive urine drug screen * History of HIV, Hep B or Hep C * History of regular alcohol consumption * History of cardiac arrhythmia, history of AV block, history of symptomatic bradycardia, history of QTc prolongation * History of pancreatitis or hyperlipidemia, elevated lipase

Locations (1)

Pfizer New Haven Clinical Research Unit

New Haven, Connecticut, United States

Outcomes

Primary Outcomes

Plasma AUCinf for PF-06463922 Given Alone and With Rifampin

AUCinf is the plasma area under the plasma concentration-time profile from time 0 extrapolated to infinite time. The pharmacokinetics (PK) parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Time frame: Predose, 0.5, 1, 1.5, 2, 4, 6, 12, 24, 36, 48, 60, 72, 96, 120 hours postdose on Day 1 after PF-06463922 100 mg administration in Period 1, and at the same time points on Day 8 after PF-06463922 100 mg with rifampin administration in Period 2.

Plasma Cmax for PF-06463922 Given Alone and With Rifampin

Cmax is the maximum observed plasma concentration. PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Secondary Outcomes

Plasma AUClast for PF-06463922 Given Alone and With Rifampin

AUClast is the plasma area under the plasma concentration-time profile from time 0 to the time of the last quantifiable concentration. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Plasma Tmax for PF-06463922 Given Alone and With Rifampin

Tmax is the time for maximum observed plasma concentration (Cmax). The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Data from ClinicalTrials.gov

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Plasma t1/2 for PF-06463922 Given Alone and With Rifampin

Terminal plasma half-life (t1/2) is the time measured for the plasma concentration of drug to decrease by one half. The PK parameter analysis population is defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Plasma CL/F for PF-06463922 Given Alone and With Rifampin

CL/F is the apparent oral clearance. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Plasma Vz/F for PF-06463922 Given Alone and With Rifampin

Vz/F is the apparent volume of distribution (only after single dose).The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Plasma AUClast for PF-06895751 When PF-06463922 Given Alone and With Rifampin

AUClast was the plasma area under the plasma concentration-time profile from time 0 to the time of the last quantifiable concentration. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma AUCinf for PF-06895751 When PF-06463922 Given Alone and With Rifampin

AUCinf was the area under the plasma concentration-time profile from time 0 extrapolated to infinite time. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma Tmax for PF-06895751 When PF-06463922 Given Alone and With Rifampin.

Tmax was the time for maximum observed plasma concentration (Cmax). The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma t1/2 for PF-06895751 When PF-06463922 Given Alone and With Rifampin

T1/2 was the terminal plasma half-life. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma Cmax for PF-06895751 When PF-06463922 Given Alone and With Rifampin

Cmax was the maximum observed plasma concentration. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma Molecular Weight Adjusted Metabolite to Parent (M/P) Ratio for Cmax (MRCmax) of PF-06463922 and Its Metabolite: When PF-06463922 Given Alone and With Rifampin

Cmax was the maximum observed plasma concentration of PF-06463922 and PF-06895751 ( metabolite of PF-06463922). The molecular weight adjusted metabolite/parent ratio (PF-06895751/PF-06463922) for Cmax was presented. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.

Plasma Molecular Weight Adjusted Metabolite to Parent (M/P) Ratio for AUClast (MRAUClast) of PF-06463922 and Its Metabolite: When PF-06463922 Given Alone and With Rifampin

AUClast was the plasma area under the plasma concentration-time profile from time 0 to the time of the last quantifiable concentration of PF-06463922 and PF-06895751 ( metabolite of PF-06463922). The molecular weight adjusted metabolite/parent ratio (PF-06895751/PF-06463922) for AUClast was presented. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period. PF-06895751 was the metabolite of PF-06463922.

Plasma Molecular Weight Adjusted Metabolite to Parent (M/P) Ratio for AUCinf (MRAUCinf) of PF-06463922 and Its Metabolite: When PF-06463922 Given Alone and With Rifampin

AUCinf was the plasma area under the plasma concentration-time profile from time 0 extrapolated to infinite time of PF-06463922 and PF-06895751 ( metabolite of PF-06463922). The molecular weight adjusted metabolite/parent ratio (PF-06895751/PF-06463922) for AUCinf was presented. The PK parameter analysis population was defined as all participants enrolled and treated who have at least 1 of the PF-06463922 PK parameters of primary interest in at least 1 treatment period.