Summary: Patients with cancer are prone to have blood clots, which are usually treated with blood thinners. The main complication of blood thinners is bleeding. This is especially a concern when the number of platelets in the blood is lower than 50,000 per microliter. The role of platelets is to stop bleeding, so when the number of platelets is low, patients are at a higher risk of bleeding. Cancer patient...

Summary: This study investigates the efficacy and safety of direct oral anticoagulants (DOACs) in comparison with standard low-molecular-weight heparin (LMWH) for the prevention of venous thromboembolism in patients with hematological malignancies. Eligible participants will be randomized to receive reduced-dose apixaban, reduced-dose rivaroxaban, or standard-dose LMWH. The primary objective is to evaluate...

Summary: This study is researching an experimental drug called REGN7508 (called study drug). The study is focused on adults undergoing elective, unilateral (one side) total knee replacement surgery. The aim of the study is to see how effective the study drug is at preventing venous thromboembolism (VTE) and other related diseases after total knee replacement surgery. The study is looking at several other r...

Summary: The goal of this clinical trial is to learn if rivaroxaban works better than enoxaparin to prevent deep vein thrombosis (DVT) after emergency exploratory laparotomy in adults. It will also learn about the safety of rivaroxaban compared to enoxaparin. The main questions it aims to answer are: Does rivaroxaban lower the number of patients who develop DVT after exploratory laparotomy compared to enox...

Summary: Allograft vascular thrombosis is a devastating complication in kidney transplantation in adults and older children. Though uncommon, it is often irreversible and represents the main cause of graft loss within after kidney transplantation in adults and in the first post-operative year in children. Since allograft thrombosis is usually observed in the first 48h post-operatively, the need to promptly...

Summary: Hospitalized medical patients have an increased risk of venous thromboembolism (VTE) across the continuum of care, including after hospital discharge. In the APEX Trial of hospitalized patients with acute medical illness, extended-duration post-discharge thromboprophylaxis with oral betrixaban reduced the frequency of asymptomatic proximal deep venous thrombosis (DVT), symptomatic proximal or dist...

Summary: Pregnancy is associated with a increased risk of developing blood clots. There is nearly a 5 times greater risk of developing a blood clot in pregnancy. Lovenox is a medication that helps to prevent the body from developing clots. It is safe to use in pregnancy. Previous studies have demonstrated that despite recommendation of Lovenox, to prevent blood clots, the majority of patient's (70 to 90%) ...

Summary: The goal of this clinical trial is to learn if apixaban (a pill) is a safe and easier alternative to taking enoxaparin (a daily shot) to prevent blood clots after head and neck cancer surgery. It will also learn about side effects of both medicines. The main questions it aims to answer are: Can apixaban be used safely instead of enoxaparin to prevent blood clots after surgery? Do patients find api...

Summary: 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 ill patients who are admitted to an intensive care unit. The main questions it aims to answer are: * What is the association between antiXa and VTE? * What is the associatio...

Summary: We will give an anticoagulant against portal vein thrombosis, and watch for the results.

Summary: The goal of this randomized clinical trial is to evaluate if we can use placental pathology in a prior pregnancy which had an adverse outcome, such as early delivery, stillbirth, a baby born smaller than expected, or severe forms of high blood pressure during pregnancy, to guide treatment in the subsequent pregnancy and reduce risk of recurrent adverse pregnancy events. The main questions it aims ...

Summary: The goal of the CRETE Studies is to investigate the newly identified age-dependent heterogeneity in the efficacy of enoxaparin in reducing the risk of central venous catheter-associated deep venous thrombosis in critically ill children.