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The purpose of this study is to compare two diagnostic interventions to improve the way D-dimer blood testing (MDA D-dimer) is used to diagnose first time symptomatic deep vein thrombosis.
Full description
Limiting use of D-dimer testing to outpatients with a Low or Moderate clinical pretest probability (C-PTP)for deep vein thrombosis AND using a D-dimer level of < 1.0 µg FEU/mL to exclude deep vein thrombosis in those with a Low C-PTP, and a D-dimer level of < 0.5 µg FEU/mL to exclude deep vein thrombosis in those with a Moderate C-PTP, is as safe and a more efficient way to diagnose DVT than: Performing D-dimer testing in all patients with suspected deep vein thrombosis with use of a single D-dimer value of < 0.5 µg FEU/mL to exclude thrombosis (current practice).
All randomized patients, including those who are treated for deep vein thrombosis after initial testing, will be followed for a period of 3 months to monitor for signs and symptoms suggestive of deep vein thrombosis, pulmonary embolism, bleeds and death.
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1,727 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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