Clinical Trials Logo
  1. Home
  2. Deep Vein Thrombosis
  3. NCT00264277

D-dimer to Establish Duration of Anticoagulation After Venous Thromboembolism

Pulmonary Embolism Clinical Trial

Official title:
D-dimer Test to Establish Duration of Anticoagulation After a First Idiopathic Episode of Venous Thromboembolism; the Prospective Randomized "Prolong" Study

Clinical Trial Summary

The optimal duration of oral anticoagulant treatment in patients with idiopathic venous thromboembolism is still uncertain. The present study addresses the possible role of the D-dimer test in assessing the need for continuation of anticoagulation.The study aims at assessing whether D-dimer assay may have a role in guiding the duration of anticoagulation in these patients

Clinical Trial Description

This is a multicenter prospective follow-up study in patients with a first episode of symptomatic idiopathic venous thromboembolism (proximal deep vein thrombosis and/or pulmonary embolism) who are treated with vitamin K antagonists (either warfarin or acenocoumarol) for a minimum of 3 months. Eligible patients who give informed consent are instructed to immediately stop oral anticoagulation and refrain from taking any other antithrombotic drugs until the next visit, scheduled after 30 days. At that visit, venous blood is sampled to perform D-dimer assay and thrombophilia tests. D-dimers are assessed using the Clearview Simplify D-dimer assay (Agen Biomedical Limited, Brisbane, Australia). Patients with normal D-dimer results do not continue anticoagulation, whereas those with elevated D-dimer results are randomized using a computer program to either stop or resume anticoagulation with vitamin K antagonists (INR 2.0-3.0). All patients are followed-up for 18 months. The study outcome are the composite of confirmed recurrent venous thromboembolism and major bleeding events. All suspected outcome events and all deaths are evaluated by a central adjudication committee whose members are unaware of the D-dimer and thrombophilia results and of the group assignments. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00264277
Study type Interventional
Source IRCCS Azienda Ospedaliero-Universitaria di Bologna
Contact
Status Completed
Phase Phase 4
Start date September 2002
Completion date September 2005
View Details
See also
  Status Clinical Trial Phase
Recruiting NCT05050617 - Point-of-Care Ultrasound in Predicting Adverse Outcomes in Emergency Department Patients With Acute Pulmonary Embolism
Terminated NCT04558125 - Low-Dose Tenecteplase in Covid-19 Diagnosed With Pulmonary Embolism Phase 4
Not yet recruiting NCT06017271 - Predictive Value of Epicardial Adipose Tissue for Pulmonary Embolism and Death in Patients With Lung Cancer
Completed NCT03915925 - Short-term Clinical Deterioration After Acute Pulmonary Embolism
Completed NCT02502396 - Rivaroxaban Utilization for Treatment and Prevention of Thromboembolism in Cancer Patients: Experience at a Comprehensive Cancer Center
Recruiting NCT05171075 - A Study Comparing Abelacimab to Dalteparin in the Treatment of Gastrointestinal/Genitourinary Cancer and Associated VTE Phase 3
Completed NCT04454554 - Prevalence of Pulmonary Embolism in Patients With Dyspnea on Exertion (PEDIS)
Completed NCT03173066 - Ferumoxytol as a Contrast Agent for Pulmonary Magnetic Resonance Angiography Phase 1
Terminated NCT03002467 - Impact Analysis of Prognostic Stratification for Pulmonary Embolism N/A
Completed NCT02334007 - Extended Low-Molecular Weight Heparin VTE Prophylaxis in Thoracic Surgery Phase 1/Phase 2
Completed NCT02611115 - Optimizing Protocols for the Individual Patient in CT Pulmonary Angiography. N/A
Completed NCT01975090 - The SENTRY Clinical Study N/A
Not yet recruiting NCT01357941 - Need for Antepartum Thromboprophylaxis in Pregnant Women With One Prior Episode of Venous Thromboembolism (VTE) N/A
Completed NCT01326507 - Prognostic Value of Heart-type Fatty Acid-Binding Protein (h-FABP) in Acute Pulmonary Embolism N/A
Completed NCT02476526 - Safety of Low Dose IV Contrast CT Scanning in Chronic Kidney Disease Phase 4
Completed NCT00771303 - Ruling Out Pulmonary Embolism During Pregnancy:a Multicenter Outcome Study
Completed NCT00720915 - D-dimer to Select Patients With First Unprovoked Venous Thromboembolism Who Can Have Anticoagulants Stopped at 3 Months N/A
Completed NCT00773448 - Screening for Occult Malignancy in Patients With Idiopathic Venous Thromboembolism N/A
Completed NCT00780767 - Angiojet Rheolytic Thrombectomy in Case of Massive Pulmonary Embolism Phase 2
Completed NCT00244725 - Odiparcil For The Prevention Of Venous Thromboembolism Phase 2