NCT00964353

Brief Summary

The purpose of this study is to explore how knowing genes that individuals inherit from their parents can make warfarin dosing more safe and effective. This study is being done to determine whether providing doctors with data on the genes their patients inherited and warfarin dosing recommendations based on those genes affects the costs and outcomes of care and after hospitalization for patients from different ethnic/racial backgrounds, and how physicians use this information in decision making.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
359

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Aug 2009

Longer than P75 for phase_4

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

August 1, 2009

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

August 12, 2009

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 24, 2009

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2012

Completed
1.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
5.7 years until next milestone

Results Posted

Study results publicly available

November 25, 2019

Completed
Last Updated

November 25, 2019

Status Verified

October 1, 2019

Enrollment Period

3 years

First QC Date

August 12, 2009

Results QC Date

October 8, 2019

Last Update Submit

November 6, 2019

Conditions

Keywords

coumadinegenotypegenesWarfarin

Outcome Measures

Primary Outcomes (1)

  • Inpatient Length of Stay

    Inpatient length of stay

    during hospital stay, up to 60 days

Secondary Outcomes (1)

  • Supratherapeutic Dosing

    during hospital stay, up to 60 days

Study Arms (2)

Clinically Guided Cohort

ACTIVE COMPARATOR

Estimated Effective Warfarin dosing calculations are based on clinical data algorithms

Drug: Warfarin

Pharmacogenetically Guided Cohort

EXPERIMENTAL

Estimated Effective Warfarin dosing calculations are based on genetic and clinical data algorithms.

Drug: Warfarin

Interventions

Dose estimates will be suggested daily for initial dose given and up to 4 consecutive doses after initial dose.

Also known as: Coumadin
Clinically Guided CohortPharmacogenetically Guided Cohort

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • warfarin-naive patients
  • ages 18 and older
  • are undergoing inpatient anticoagulation initiation with warfarin for diagnoses that necessitate anticoagulation

You may not qualify if:

  • patients who are not warfarin-naive
  • years of age or younger

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Chicago

Chicago, Illinois, 60637, United States

Location

MeSH Terms

Conditions

Blood Coagulation Disorders

Interventions

Warfarin

Condition Hierarchy (Ancestors)

Hematologic DiseasesHemic and Lymphatic Diseases

Intervention Hierarchy (Ancestors)

4-HydroxycoumarinsCoumarinsBenzopyransPyransHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Results Point of Contact

Title
Dr David Meltzer
Organization
University of Chicago

Study Officials

  • David O Meltzer, MD, PhD

    University of Chicago

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 12, 2009

First Posted

August 24, 2009

Study Start

August 1, 2009

Primary Completion

August 1, 2012

Study Completion

April 1, 2014

Last Updated

November 25, 2019

Results First Posted

November 25, 2019

Record last verified: 2019-10

Locations