At a glance
ClinicalIndex Comparison RecordStandardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Prospective CYP2C9 And VKORC1 Genotyping For Total Hip or Knee Replacement Patients Receiving Warfarin (Coumadin)For Anticoagulation
In Brief
A clinical study evaluating Pharmacogenetic-based warfarin dosing and Usual care warfarin dosing for Venous Thromboembolism and Bleeding. Completed, enrolled 263 participants across 1 site.
Detailed Summary
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 was designed to evaluate if genetic testing can improve warfarin initiation better than usual care.
Study Details
Timeline
Interventions
Prior to elective joint replacement surgery a blood sample is collected for genetic information(genotyping)which was used for calculating warfarin doses for patients randomized to the cytochrome arm. Outcomes in terms of efficacy, safety, and management of warfarin were compared between this group and the group in which warfarin doses are determined per usual care. NOTE: Standard of care for elective knee and hip replacement at our institution is to receive post-operative warfarin thromboprophylaxis. Administration of warfarin was not specific to this study, nor was the duration of prophylaxis, however, warfarin dosing was influenced by the study arm as noted above.
For patients in arm 2, the control group, warfarin dosing is per usual care. Outcomes in terms of safety, efficacy, and warfarin management was compared to that of patients in the other arm, who receive warfarin dosing based on genotyping. NOTE: Standard of care for elective knee and hip replacement at our institution is to receive post-operative warfarin thromboprophylaxis. Administration of warfarin was not specific to this study, nor was the duration of prophylaxis, however, warfarin dosing was influenced by the study arm as noted above.