- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00005684
Oral Anticoagulant Therapy for Venous Thrombosis - SCOR in Thrombosis
Study Overview
Status
Intervention / Treatment
Detailed Description
BACKGROUND:
The study, a subproject within a SCOR in Thrombosis, should help to improve the long-term clinical outcome of patients with proximal deep-vein thrombosis (popliteal, femoral or iliac vein thrombosis) by improving their survival and reducing morbidity from recurrent thromboembolic events, and should help to determine if one or more specific biochemical measures, including antiphospholipid antibodies and activated factor VII, will define a subset of patients at increased risk of recurrent venous thromboembolism.
The study is part of a SCOR in Hemostatic and Thrombotic Diseases, the RFA for which was released by the NHLBI in April 1994.
DESIGN NARRATIVE:
Warfarin Trial
A multicenter, randomized clinical trial was conducted from March 1996 through January 2001 comparing warfarin therapy for three years to warfarin therapy for three months. The study was performed at thirteen participating hospitals in Oklahoma. The 600 hundred patients were recruited, randomized to either warfarin therapy for three years or warfarin therapy for three months and followed for at least three years. The primary outcome measure was total mortality. Secondary outcome measures included vascular death, objectively documented recurrent venous thromboembolism, and bleeding complications (major and minor). Additional specific aims included: determining the prevalence of antiphospholipid antibodies, antithrombomodulin antibodies, and activated protein C resistance in consecutive patients with proximal-vein thrombosis; determining if these measures, and/or the level of activated factor VII were associated with an increased risk of recurrent venous thromboembolic events, and if so, whether these events were reduced by continuing long term warfarin treatment. These latter specific aims were achieved by performing the laboratory parameters concurrently in patients entered into the clinical trial, and relating these measures to the clinical outcomes on long-term follow-up.
The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.
Study Type
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Study Plan
How is the study designed?
Design Details
Collaborators and Investigators
Investigators
- Gary Raskob, Oklahoma Medical Research Foundation
Study record dates
Study Major Dates
Study Start
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 4108
- P50HL054502 (U.S. NIH Grant/Contract)
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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