Comparison of Warfarin Dosing Using Decision Model Versus Pharmacogenetic Algorithm

December 7, 2012 updated by: Creighton University

Warfarin Dosing: Pharmacogenetic Algorithm Compared to Pharmacist's Dosing

This is a prospective comparison of clinician dosing and a pharmacogenetic algorithm in diagnosed patients requiring warfarin therapy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Diagnosed patients with atrial fibrillation, pulmonary embolism, or deep venous thrombosis requiring warfarin therapy will be consented and a tube of blood for DNA analysis will be drawn. The clinician dosing group will not be eligible to obtain the pharmacogenetic results and the algorithm group will have their warfarin pharmacogenetic SNPs performed and integrated into the algorithm and the warfarin dose will be calculated. Outcomes of patients receiving both methods will be gathered and statistically analyzed.

Study Type

Interventional

Enrollment (Actual)

102

Phase

  • Phase 4

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

19 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosed patients with atrial fibrillation, deep venous thrombosis, or pulmonary embolism requiring warfarin therapy

Exclusion Criteria:

  • Patients with atrial fibrillation, deep venous thrombosis, or pullmonary embolism requiring warfarin therapy who do not consent to participate

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: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Clinician dosing of warfarin
Warfarin dose based on clinician dosing without the use of warfarin pharmacogenetics
Genetic: Warfarin Dose based on pharmacogenetics
Warfarin dose adjustment will be based on the standard clinician dosing compared to the use of the pharmacogenetic base algorithm

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
In Patients Receiving Warfarin, a Pharmacogenetic Algorithm Dose Was Compared to Clinician Dosing (mg/wk).
Time Frame: six months
Warfarin pharmacogenetic algorithm dosing (mg/wk) was compared to clinician warfarin dosing (mg/wk).
six months

Collaborators and Investigators

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

Sponsor

Creighton University

Investigators

  • Principal Investigator: Christopher J. Destache, Pharm. D., Creighton University

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

August 1, 2006

Primary Completion (Actual)

November 1, 2008

Study Completion (Actual)

November 1, 2008

Study Registration Dates

First Submitted

August 1, 2007

First Submitted That Met QC Criteria

August 2, 2007

First Posted (Estimate)

August 3, 2007

Study Record Updates

Last Update Posted (Estimate)

December 11, 2012

Last Update Submitted That Met QC Criteria

December 7, 2012

Last Verified

December 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 06-14171

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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