Blood Coagulation Disorders Clinical Trial
Official title:
PRospective Evaluation Comparing Initiation of Warfarin StrategiEs (PRECISE): Pharmacogenetic-guided Versus Usual Care
NCT number | NCT00377143 |
Other study ID # | 131-2006 |
Secondary ID | |
Status | Withdrawn |
Phase | Phase 4 |
First received | September 13, 2006 |
Last updated | February 14, 2012 |
Start date | July 2006 |
Verified date | September 2011 |
Source | University of Florida |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Interventional |
Warfarin (also called Coumadin®) is an anticoagulant drug (blood thinner) given to patients to help prevent blood clots from forming or to help prevent the growth of an existing blood clot. The purpose of this study is to collect information on a possible method used to determine the best warfarin dose for people before they start warfarin. This study will focus on finding out if a person's stable dose can be better predicted by using a new approach (called "pharmacogenetic-guided dosing") compared to the current warfarin dosing method. The pharmacogenetic-guided dosing method (the new warfarin dosing method) will use a person's specific health and genetic information to calculate a patient's warfarin dose at the beginning of warfarin treatment. The hope is that through this research, we may someday be able to use an individual's genetic information to guide the selection of their specific warfarin dose at the beginning of treatment, leading to precise warfarin dosing and less need for the current trial and error process.
Status | Withdrawn |
Enrollment | 0 |
Est. completion date | |
Est. primary completion date | August 2006 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Newly initiating warfarin Exclusion Criteria: - Previous use of warfarin - Cancer - Hepatic Disease - History of alcoholism - Diarrheal illness - Febrile Illness - Blood dyscrasias - Pregnancy - Medical plan to hold warfarin administration before stable dose is achieved (ie. for surgical intervention) - Dementia - Active bleed - Aneurysm |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Shands at the University of Florida | Gainesville | Florida |
Lead Sponsor | Collaborator |
---|---|
University of Florida |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Accuracy of the initial versus the stable warfarin dose, measured as mean absolute difference in initial versus stable dose | |||
Secondary | Time to stable dose | |||
Secondary | The frequency of subtherapeutic and supratherapeutic international normalized ratio (INR) measurements | |||
Secondary | The fraction of population overdosed and underdosed at warfarin initiation |
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