Clinical Trials Logo

Clinical Trial Summary

Pregnant women with a prior history of venous thromboembolism (VTE) are at increased risk of recurrent VTE. Current guidelines assessing the role of prophylaxis in pregnant women with prior VTE are based primarily on expert opinion and the optimal clinical management strategy remains unclear.

This multicentre, prospective cohort study aims to test the following hypotheses:

1. Antepartum prophylaxis with fixed-dose low molecular-weight heparin (LMWH) is safe, convenient and associated with an acceptably low risk of recurrent VTE in women with a single prior episode of VTE that was either unprovoked or associated with a minor transient risk factor. (Moderate risk cohort)

2. Withholding antepartum prophylaxis is safe (recurrence risk <1%) in pregnant women with a single prior episode of VTE provoked by a major transient risk factor. (Low risk cohort)

All study patients will receive 6 weeks of postpartum prophylaxis.


Clinical Trial Description

n/a


Study Design

Observational Model: Cohort, Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT01357941
Study type Observational
Source Hamilton Health Sciences Corporation
Contact Shannon M Bates, MD
Phone 905-521-2100
Email batesm@mcmaster.ca
Status Not yet recruiting
Phase N/A
Start date September 2011
Completion date September 2014

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
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 NCT00780767 - Angiojet Rheolytic Thrombectomy in Case of Massive Pulmonary Embolism Phase 2
Completed NCT00720915 - D-dimer to Select Patients With First Unprovoked Venous Thromboembolism Who Can Have Anticoagulants Stopped at 3 Months N/A
Completed NCT00771303 - Ruling Out Pulmonary Embolism During Pregnancy:a Multicenter Outcome Study
Completed NCT00773448 - Screening for Occult Malignancy in Patients With Idiopathic Venous Thromboembolism N/A
Completed NCT00244725 - Odiparcil For The Prevention Of Venous Thromboembolism Phase 2
Completed NCT00816920 - Natural History of Isolated Deep Vein Thrombosis of the Calf