Prospective Genotyping For Total Hip or Knee Replacement Patients Receiving Warfarin (Coumadin)

2014-08-26 22:32:12 | BioPortfolio


Several human genes affect how medications are metabolized by the body. It is believed that knowledge of variations of these genes can help health care providers better manage an anticoagulation medicine called warfarin (Coumadin®)and as a result decrease patient problems with bleeding or the development of blood clots. This study is designed to evaluate if genetic testing can improve warfarin initiation better than usual care.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Venous Thromboembolism


Pharmacogenetic-based warfarin dosing, Usual care warfarin dosing


University of Utah Health Care
Salt Lake City
United States




University of Utah

Results (where available)

View Results


Published on BioPortfolio: 2014-08-26T22:32:12-0400

Clinical Trials [2381 Associated Clinical Trials listed on BioPortfolio]

PRospective Evaluation Comparing Initiation of Warfarin StrategiEs (PRECISE): Pharmacogenetic-Guided Versus Usual Care

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 clo...

PerMIT: Warfarin: A Trial Comparing Usual Care Warfarin Initiation to PerMIT Pharmacogenetic Guided Warfarin Therapy

Warfarin is the most commonly used oral anticoagulant medicine (blood thinner). Although this medicine works well, it is difficult to know how much medicine a patient needs. Many things af...

Clarification of Optimal Anticoagulation Through Genetics

Individuals taking warfarin often need frequent dose changes as the international normalized ratio (INR) gets too high or too low which could result in a higher risk of thromboembolism, bl...

Evaluation of a Pharmacogenetic-based Warfarin Dosing Algorithm in Patients

Background: Time in therapeutic range (TTR) is a measurement of quality of warfarin therapy and lower TTR values (

Clinical and Economic Implications of Genetic Testing for Warfarin Management

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 determi...

PubMed Articles [24679 Associated PubMed Articles listed on BioPortfolio]

Comparison of Nine Statistical Model Based Warfarin Pharmacogenetic Dosing Algorithms Using the Racially Diverse International Warfarin Pharmacogenetic Consortium Cohort Database.

Multiple linear regression (MLR) and machine learning techniques in pharmacogenetic algorithm-based warfarin dosing have been reported. However, performances of these algorithms in racially diverse gr...

Pharmacogenetic versus clinical dosing of warfarin in individuals of Chinese and African-American ancestry: assessment using data simulation.

Clinical trials of genotype-guided dosing of warfarin have yielded mixed results, which may in part reflect ethnic differences among study participants. However, no previous study has compared genotyp...

PGWD: Integrating Personal Genome for Warfarin Dosing.

Warfarin is a drug normally used in the prevention of thrombosis and the formation of blood clots. The dosage of warfarin is strongly affected by genetic variants of CYP2C9 and VKORC1 genes. Current t...

Warfarin dosing after bariatric surgery: a retrospective study of 10 patients previously stable on chronic warfarin therapy.

Many changes associated with bariatric surgery have the potential to affect warfarin dosing; yet current literature includes little data describing this phenomenon. Investigating this relationship may...

Meta-analysis of Randomized Controlled Trials of Genotype-guided versus Standard Dosing of Warfarin.

Warfarin is widely prescribed anticoagulant and its effect depends on various patient factors including genotypes. Randomized controlled trials (RCTs) comparing genotype-guided dosing (GD) of warfarin...

Medical and Biotech [MESH] Definitions

An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.

Measurable biological parameters that serve for drug development, safety and dosing (DRUG MONITORING).

A coumarin that is used as an anticoagulant. Its actions and uses are similar to those of WARFARIN. (From Martindale, The Extra Pharmacopoeia, 30th ed, p233)

A coumarin that is used as an anticoagulant. It has actions similar to those of WARFARIN. (From Martindale, The Extra Pharmacopoeia, 30th ed, p226)

An indandione that has been used as an anticoagulant. Phenindione has actions similar to WARFARIN, but it is now rarely employed because of its higher incidence of severe adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p234)

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