Clinical trials: Anti-Xa Activity, open to volunteers
Non Valvular Atrial Fibrillation
Apixaban Versus Rivaroxaban in Non Valvular Atrial Fibrillation
The investigators will first measure the maximum concentration (after 2 hours of intake) and the residual concentration (just before the next intake) after at least 15 consecutive days of treatment.
- Trial name
- APIXA-Xa (NCT06862726)
- Testing
- Anti Xa dosage, Dosage of PT-INR
- Where
- Tunisia
- Volunteers
- 120 people
- Sponsor
- Les Laboratoires des Médicaments Stériles
Congenital Heart Disease, Unfractionated Heparin
Comparison of the Best Method for Measuring Anti-Xa Activity in Children Receiving Unfractionated Heparin in Cardiac Intensive Care (COMPAXE-HNF)
This study aims to compare the accuracy of two different blood sampling methods from a central venous catheter (CVC) for measuring anti-Xa activity in children receiving unfractionated heparin (UFH) from this CVC.
- Conditions
- Congenital Heart Disease, Unfractionated Heparin, Anti Xa Activity
- Trial name
- COMPAXE-HNF (NCT07365670)
- Testing
- blood sampling for measuring anti-Xa activity, measurement of anti-XA activity
- Volunteers
- 22 people
- Sponsor
- Centre Hospitalier Universitaire de la Réunion
Circadian Variation in Anti-Factor Xa (Anti-FXa) Activity
Circadian Variation of Anti-Factor Xa in Hospitalized Trauma Patients
The purpose of this study is to determine whether a circadian rhythm exists in anti-FXa levels and AT3 activity in hospitalized trauma patients receiving low-molecular-weight heparin (LMWH) chemoprophylaxis
- Trial name
- NCT07856641
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- The University of Texas Health Science Center, Houston
Anticoagulants and Bleeding Disorders
Comparison of Heparin Anti-Xa Activity From Central Venous Catheter Samples Using a 5 mL Syringe Flush or a Vacuum Tube Flush Versus Peripheral Vein Samples in ICU Patients
The goal is to investigate whether blood samples drawn from a central venous catheter can provide reliable measurements of unfractionated heparin (UFH) anti-Xa activity, compared to the standard method of peripheral vein…
- Trial name
- CASSANDRA (NCT07183605)
- Testing
- catheter flushing techniques
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Centre Hospitalier Régional d'Orléans
Thromboembolic Disease
HEPARINS: INTERFERENCE IN ARGATROBAN MEASUREMENT
Unfractionated heparin (UFH) and low molecular weight heparins (LMWH) provide anticoagulation through their anti-Xa and anti-IIa activity.
- Trial name
- HIMA (NCT07302620)
- Where
- France
- Volunteers
- 70 people
- Sponsor
- University Hospital, Strasbourg, France
Venous Thromboembolism, Obese Patients
Evaluation of Anti-Xa Activity in Patients With Severe Obesity After Subcutaneous Injection of Enoxaparin for Antithrombotic Prophylaxis at Two Different Sites.
To evaluate appropriateness of enoxaparin bioavailability at two different sites of subcutaneous administration (arms or abdomen) in primary or secondary prevention of thromboembolism in a population of patients with severe…
- Trial name
- EPOS (NCT07213713)
- Volunteers
- 80 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Thrombosis, Pulmonary Embolism
Association of Anti-factor Xa Activity With Venous Thromboembolism in Critically Ill Patients
The goal of this observational study is to analyse the association between anti-factor Xa activity (antiXa) and the occurence of venous thromboembolism (VTE; either deep vein thrombosis and/or pulmonary embolism) in critically…
- Conditions
- Thrombosis, Pulmonary Embolism, Enoxaparin
- Trial name
- AntiXa-ICU (NCT06357403)
- Testing
- Anti-factor Xa activity calibrated for enoxaparin
- Where
- 3 sites in Austria
- Volunteers
- 1,300 people
- Sponsor
- Medical University of Vienna
Hypertriglyceridemia
Interest of High-speed Centrifugation for Measuring Anti-Xa Activity on Lipemic Plasma
Some hemostasis techniques require spectrophotometric measurements. These are then subject to interference from the sample's lipemia (postprandial, hypertriglyceridemia, etc.), which risks distorting the results; this is…
- Trial name
- LCGV (NCT07200674)
- Where
- France
- Volunteers
- 150 people
- Sponsor
- University Hospital, Strasbourg, France
Bariatric Surgery, Anti-Xa Activity
The OAT Trail: The Obesity Anti-Coagulation Thromboprophylaxis Trial.
Blood clots in the legs or lungs (called venous thromboembolism or VTE) are one of the most serious complications after weight loss surgery.
- Conditions
- Bariatric Surgery, Anti-Xa Activity, VTE (Venous Thromboembolism), Obesity & Overweight
- Trial name
- The OAT-RCT (NCT07559643)
- Testing
- Anti-Xa Activity Monitoring, Tinzaparin (Leo), enoxaparin
- Where
- Ireland
- Volunteers
- 180 people
- Sponsor
- University College Dublin