NCT00785213

Brief Summary

Rosiglitazone is predominantly metabolized by cytochrome P450 (CYP) 2C8. Quinine sulfate is an inhibitor of CYP 2C8. This study will evaluate the effect of multiple doses of quinine sulfate at steady-state on the pharmacokinetics of single-dose rosiglitazone in healthy adult subjects.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
23

participants targeted

Target at P25-P50 for phase_1 healthy

Timeline
Completed

Started Sep 2008

Shorter than P25 for phase_1 healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2008

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2008

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

October 24, 2008

Completed
12 days until next milestone

First Posted

Study publicly available on registry

November 5, 2008

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

November 26, 2009

Completed
Last Updated

August 7, 2012

Status Verified

July 1, 2012

Enrollment Period

1 month

First QC Date

October 24, 2008

Results QC Date

October 20, 2009

Last Update Submit

July 31, 2012

Conditions

Keywords

rosiglitazonequinine sulfatedrug interactionscytochrome p450

Outcome Measures

Primary Outcomes (3)

  • Maximum Plasma Concentration (Cmax) of Rosiglitazone

    The maximum or peak concentration that rosiglitazone reaches in the plasma.

    serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 7 and then 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 20 and 24 hours after dose administration.

  • Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]

    The area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule for rosiglitazone.

    serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 7 and then 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 20 and 24 hours after dose administration.

  • Area Under the Concentration Versus Time Curve From Time 0 Extrapolated to Infinity [AUC(0-∞)]

    The area under the plasma concentration versus time curve from time 0 to infinity. \[AUC(0-∞)\] was calculated as the sum of AUC(0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant for rosiglitazone.

    serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 7 and then 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 20 and 24 hours after dose administration.

Study Arms (2)

Rosiglitazone Alone

ACTIVE COMPARATOR

Baseline rosiglitazone pharmacokinetics.

Drug: Rosiglitazone 4 mg Tablets

Rosiglitazone with Steady State Quinine Sulfate

EXPERIMENTAL

Rosiglitazone pharmacokinetics in the presence of steady state quinine sulfate.

Drug: Rosiglitazone 4 mg TabletsDrug: Quinine Sulfate 324 mg Capsules

Interventions

Rosiglitazone 4 mg tablet administered as a single oral dose on the morning of Day 1.

Also known as: Avandia®
Rosiglitazone Alone

Co-administered single oral doses of rosiglitazone 4 mg (1 x 4 mg tablet) and quinine sulfate 648 mg (2 x 324 mg capsules) on the morning of Day 7.

Also known as: Qualaquin®
Rosiglitazone with Steady State Quinine Sulfate

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy adults 18-45 years of age
  • Non-smoking
  • Non-pregnant (post-menopausal, surgically sterile or using effective contraceptive measures)
  • Body mass index (BMI) less than or equal to 32
  • Medically healthy on the basis of medical history and physical examination
  • Hemoglobin \> or = to 11.5g/dL
  • Completion of the screening process within 28 days prior to dosing
  • Provision of voluntary written informed consent

You may not qualify if:

  • Recent participation (within 28 days) in other research studies
  • Recent significant blood donation or plasma donation
  • Pregnant or lactating
  • Test positive at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HbsAg), or hepatitis C virus (HCV)
  • Recent (2-year) history or evidence of alcoholism or drug abuse
  • History or presence of significant cardiovascular, pulmonary, hepatic, gallbladder or biliary tract, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, or psychiatric disease
  • Subjects who have used any drugs or substances known to inhibit or induce cytochrome (CYP) P450 enzymes and/or P-glycoprotein (P-gp) within 28 days prior to the first dose and throughout the study
  • Drug allergies to quinine sulfate or rosiglitazone

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cetero Research

East Grand Forks, Minnesota, 56721, United States

Location

Related Links

MeSH Terms

Interventions

RosiglitazoneQuinine

Intervention Hierarchy (Ancestors)

ThiazolidinedionesThiazolesSulfur CompoundsOrganic ChemicalsAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsCinchona AlkaloidsAlkaloidsQuinuclidinesHeterocyclic Compounds, Bridged-RingQuinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Results Point of Contact

Title
Medical Director
Organization
Mutual Pharmaceutical Company, Inc.

Study Officials

  • Matthew Davis, MD

    Mutual Pharmaceutical Company, Inc.

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
GT60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 24, 2008

First Posted

November 5, 2008

Study Start

September 1, 2008

Primary Completion

October 1, 2008

Study Completion

October 1, 2008

Last Updated

August 7, 2012

Results First Posted

November 26, 2009

Record last verified: 2012-07

Locations