Impact of CYP2C19*17 on the Pharmacokinetics of Proguanil and Clopidogrel

July 2, 2013 updated by: Rasmus Steen Pedersen, University of Southern Denmark
The aim of this study is to investigate if the genetic variant CYP2C19*17 affects the pharmacokinetics of proguanil and clopidogrel.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

31

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Denmark
    • Fyn
      • Odense, Fyn, Denmark, DK-5000
        • Clinical Pharmacology, University of Southern Denmark

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy volunteers
  • Written consent
  • Age 18-65
  • CYP2C19*1 and or CYP2C19*17 genotype.

Exclusion Criteria:

  • Daily medication
  • Alcohol abuse
  • Pregnancy
  • Breastfeeding

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: BASIC_SCIENCE
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Period A: proguanil
Proguanil pharmacokinetics
Drug: Proguanil
2x350 mg Malarone followed by 3 days of blood- and urine sampling
ACTIVE_COMPARATOR: Period B: clopidogrel
Clopidogrel pharmacokinetics
Drug: Clopidogrel
2x300 mg Plavix followed by 7 hours days of blood sampling

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proguanil pharmacokinetics. Primary endpoint is cycloguanil formation clearance.
Time Frame: Hours after administration: 0, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 10, 24, 31, 48, 55
Based on blood- and urine-concentrations of proguanil and the metabolites cycloguanil and 4-chlorphenylbiguanid a comparison of the pharmacokinetic parameters (AUC, Cmax, Tmax, T1/2) between the three groups of genotypes (CYP2C19*1/*1, CYP2C19*1/*17 and CYP2C19*17/*17) will be made.
Hours after administration: 0, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 10, 24, 31, 48, 55

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pharmacokinetics of the derivatised active clopidogrel metabolite.
Time Frame: Hours after administration: 0, 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 5, 6, 7

Based on blood-concentrations of the derivatised active metabolite of clopidogrel a comparison of the pharmacokinetic parameters (AUC, Cmax, Tmax, T1/2) between the three groups of genotypes (CYP2C19*1/*1, CYP2C19*1/*17 and CYP2C19*17/*17) will be made.

Secondly, a comparison of the platelet inhibitory of clopidogrel between the three groups of genotypes (CYP2C19*1/*1, CYP2C19*1/*17 and CYP2C19*17/*17) will be made using the VerifyNow® P2Y12 Test.
Hours after administration: 0, 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 5, 6, 7

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Southern Denmark

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2011

Primary Completion (ACTUAL)

July 1, 2013

Study Completion (ACTUAL)

July 1, 2013

Study Registration Dates

First Submitted

October 6, 2011

First Submitted That Met QC Criteria

October 18, 2011

First Posted (ESTIMATE)

October 20, 2011

Study Record Updates

Last Update Posted (ESTIMATE)

July 3, 2013

Last Update Submitted That Met QC Criteria

July 2, 2013

Last Verified

July 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • AKF-380

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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