RIVET - Retrospective Cohort Study on the Risk of Venous Thromboembolism
Venous ThromboembolismThe risk of venous thromboembolism (VTE) associated with the use of chlormadinone acetate (CMA) compared to the gold-standard progestin levonorgestrel (LNG) as component of combined oral contraceptives (COC) is currently unknown. The Pharmacovigilance Risk Assessment Committee (PRAC) of the European Medicines Agency (EMA) recommended a pooled analysis of four prospective cohort studies carried out by the Berlin Center for Epidemiology and Health Research (ZEG Berlin) in order to clarify whether CMA-containing COCs carry a different VTE risk compared to LNG-containing COCs.
Rivaroxaban (10mg) Given Once Daily in Patients Undergoing Total Hip Replacement Compared to Enoxaparin...
Venous ThromboembolismThe purpose of this study is to assess if 10 mg BAY 59-7939, taken once daily as a tablet, is safe and prevent blood clot which may form after total hip replacement operation.
Sonoclot to Evaluate Thrombotic Risk in Proteinuric Pregnancy
Pregnancy ComplicationsProteinuria in Pregnancy2 moreThere is a lack of consensus on whether women with proteinuric kidney disease benefit from prophylactic anticoagulation during pregnancy to reduce the risk of venous thromboembolism. This pilot study will investigate the feasibility of obtaining thrombosis profile data using a viscoelastic haemostasis monitor - Sonoclot - from pregnant women with kidney disease, and exploratory analyses to elucidate correlations between output values and clinical parameters
Reinitiation of Anticoagulation After Temporary Withdrawal of Vitamin K Antagonist
Atrial FibrillationVenous Thromboembolism2 moreIt is not known how to best restart warfarin after temporary withdrawal. Participants will be randomized to two groups. Group 1 will restart warfarin at their usual maintenance dose, group 2 will restart warfarin at double their maintenance dose for two days followed by their usual maintenance dose. The main outcome parameter will be the number of patients who are back in therapeutic INR (international normalized ratio) range 4, and 9 days after restarting anticoagulation with warfarin. Thromboembolic and/or bleeding events will be recorded as additional parameters. These data will be collected by a standardized telephone interview at 1 month. In addition, the investigators will evaluate a possible prothrombotic state by measuring the potential of thrombin generation and D-dimers in the subset of patients visiting HHS-General Hospital for their INR tests.
Cancer Venous Thromboembolism (VTE)
Venous Thromboembolism (VTE)Deep Vein Thrombosis (DVT)2 moreThe primary objective is to demonstrate the non-inferiority of edoxaban (preceded by a short course of LMWH) compared with dalteparin for the prevention of the combined outcome of recurrent venous thromboembolism (VTE) or major bleeding in subjects with VTE associated with cancer during a 12-month study period. If non-inferiority is established, LMWH/edoxaban will be compared with dalteparin for superiority.
D-dimer to Establish Duration of Anticoagulation After Venous Thromboembolism
Deep Vein ThrombosisPulmonary EmbolismThe 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
Thromboprophylaxis After Surgery for Gynecologic Malignancy in China
Gynecologic NeoplasmsVenous Thromboembolism2 moreVenous thromboembolism (VTE) is an important cause of post-operative morbidity and mortality in women undergoing surgery for gynecologic malignancies. Although the benefit of thromboprophylaxis in reduction of post-operative VTE events after surgery for gynecologic cancers has been well documented around the world, the evidence for Chinese women is rare. The investigators designed this prospective and randomized study to assess the benefit of pharmacologic prophylaxis for patients received surgical treatment for gynecologic malignancies in China.
Anticoagulation Length in Cancer Associated Thrombosis
CancerThrombosis3 moreThis is a two year, multicentre, mixed methods feasibility study including a randomised controlled two-arm interventional trial, a nested qualitative study, focus groups and a United Kingdom (UK) wide survey exercise.
Management of Platelet Transfusion Therapy in Patients With Blood Cancer or Treatment-Induced Thrombocytopenia...
Acute Biphenotypic LeukemiaAcute Lymphoblastic Leukemia13 moreThis pilot clinical trial compares the safety of two different platelet transfusion "thresholds" among patients with blood cancer or treatment-induced thrombocytopenia whose condition requires anticoagulant medication (blood thinners) for blood clots. Giving relatively fewer platelet transfusions may reduce the side effects of frequent platelet transfusions without leading to undue bleeding.
: Pharmacokinetics of Enoxaparin After Coronary Artery Bypass Graft Surgery
Venous ThromboembolismPulmonary Embolism1 moreTo evaluate the pharmacokinetics of thromboprophylactic doses of LMWH enoxaparin in postoperative CABG patients, drug is administered either as a continuous intravenous infusion (CIV) or subcutaneous bolus (SCB) once per 72h. Plasma anti-Xa values are measured 12-14 times during study period and concentration maximums calculated to enable comparison of anti-Xa values between administration routes.