View clinical trials related to Venous Thrombosis.
Filter by:Patients with cancer have a high risk of developing venous blood clots or thromboembolism (VTE). In an effort to target patients at highest risk of VTE for thromboprophylaxis (protective treatment for blood clots), numerous studies have identified serum biomarkers for risk of future VTE. There is also increasing evidence pointing to a prophylactic effect of statin therapy on the risk of developing VTE in high-risk populations including patients with advanced cancer. The purpose of this research study is to find out whether treatment with rosuvastatin (the study drug) reduces the risk of VTE in patients with cancer receiving chemotherapy. This study is specifically investigating the impact of rosuvastatin therapy on serum biomarkers (D-dimer and others) that indicate a risk for VTE, as well as safety and tolerance of rosuvastatin therapy in this population. This is a phase II randomized crossover study with two 3-4 week treatment periods during which all enrolled patients will receive 20 mg of rosuvastatin once a day by mouth or a matching placebo tablet. Approximately two tablespoons of blood will be collected for biomarker analysis at the beginning and end of each treatment period. After the first treatment period there will be a 3-5 week break where subjects will undergo a washout. Following this washout period every subject will "crossover" or begin taking the alternative therapy so everyone enrolled will receive the study drug either during the first or the second treatment period. Biomarker levels will be analyzed in both treatment periods and compared to baseline, with every patient acting as their own control.
The objective of this study is to evaluate the efficacy, safety, pharmacokinetics (PK) and pharmacodynamics (PD) of two different dosages of rivaroxaban in the treatment of deep vein thrombosis (DVT) and the prevention of the occurrence and the recurrence of DVT or pulmonary embolism (PE) in Japanese patients with acute symptomatic DVT without symptomatic PE.
The study objective is to investigate the pharmacodynamics (effects of a drug product) when switching the treatment from warfarin to rivaroxaban. 84 young, healthy subjects will participate; they will be treated following a randomized, parallel-group (Treatments A, B, and C), placebo-controlled (Treatment B), and single-blind (Treatments A and B) design. The first two groups (A, B) will receive warfarin for approximately one week to adjust their blood coagulation values to a specific level, i.e. to maintain an INR (international normalized ratio) of 2.0 - 3.0. This range is commonly used for long-term anticoagulant treatment. The first group (A) will receive rivaroxaban for four days, the second group (B) will take placebo. On the last day, all subjects in groups A and B will receive vitamin K to neutralize the effects of warfarin. The third group (C) will not undergo prior treatment with warfarin but will receive rivaroxaban for four days.
To date, the investigators still do not know the annual incidence of Superficial Vein Thrombosis in the legs, although the investigators do know that this pathology is frequent and the investigators can assume its incidence is greater than Deep Vein Thrombosis which is of 1 to 2 cases per year per 1,000 inhabitants. Furthermore, the high percentage of SVT with concomitant DVT and Pulmonary Embolism only concerns patients seen in vascular medicine, so it is important to re-evaluate this rate on an unselected population from general practice.
The purpose of this study is to evaluate the efficacy and safety of rivaroxaban versus fondaparinux in the treatment of superficial vein thrombosis (SVT).
The investigators aim to compare the complications between centrally and peripherally inserted central venous catheters in neurological intensive care unit patients. The study hypothesis is that peripherally inserted catheters will have more cumulative complications due to venous thrombosis.
Patients with deep vein thrombosis (DVT) of the ilio-femoral veins have increased risk for developing post-thrombotic syndrome (PTS) and recurrent venous thromboembolism compared to more distal DVT. There's evidence that the early removal of the obstructing thrombus by catheter directed thrombolysis (CDT) reduces the risk of developing a PTS, and a higher degree of thrombolysis is associated with lower incidence of PTS, better quality of life and lower risk of recurrent venous thromboembolism. A further development is ultrasound-enhanced thrombolysis combining CDT with a sophisticated catheter system that employs high-frequency, low-dose ultrasound. In vitro experiments showed that adding ultrasound to thrombolytic drugs accelerates thrombolysis while Ultrasound exposure alone results in no thrombolysis, however the superiority of ultrasound-enhanced thrombolysis over standard CDT has never been formally assessed in vivo. The hypothesis for this study is that ultrasound-enhanced thrombolysis reaches a higher degree of thrombolysis than standard CDT in patients with symptomatic ilio-femoral DVT.
The CATCH-enoxaparin trial is the natural continuation of the CATCH study. It will capitalize on the fact that patients enrolled in the CATCH study will be specifically screened for asymptomatic thromboembolism (TEs) in order to answer important clinical questions. The investigators propose a randomized controlled trial to address whether, among pediatric patients with congenital heart defects (CHD) recovering from cardiovascular surgery and diagnosed with an asymptomatic venous TE, the use of enoxaparin results in a net therapeutic benefit?
The portal vein thrombosis (PVT) can complicate medical conditions like liver cirrhosis (LC), neoplasms, myeloproliferative diseases, thrombophilic genotypes, infections, inflammatory diseases, trauma and surgery. LC is an important predisposing disease and is responsible for about 20% of all cases. However, data regarding the PVT in cirrhosis are insufficient. Early studies have shown that, in absence of hepatocellular carcinoma (HCC), the PVT can occur in approximately 10% of cirrhotic patients. Most of studies are in support of a prevalence between 5 and 20% of patients with LC. A study in transplant recipients, has documented that in variable etiology cirrhosis, the PVT was present in 15.7% of patients, a higher percentage was found in patients with liver cancer (34.8%), while primary biliary cirrhosis (7.9%) and sclerosing cholangitis (3.6%) are less frequently complicated by PVT. The PVT development is due to stagnation in the portal circulation, but alterations in the sense of inherited or acquired pro-coagulant may favor its appearance. The causal association of PVT with bleeding and bowel infarction suggests that the PVT may reduce survival in cirrhosis, but data are lacking on this issue. It is also not known whether asymptomatic patients with PVT have a different survival compared to cirrhotic patients without PVT. Further studies should be conducted to clarify this issue. Likewise, prospective studies are needed to better identify risk factors predisposing to PVT in LC patients as well as to clarify the relationship between cirrhosis severity and PVT. The impact of PVT on the natural history of cirrhosis is an issue today still debated. The PVT not only favour life-threatening complications (gastrointestinal bleeding and mesenteric thrombosis) but could also contribute to a deterioration of liver function by reducing portal flow. Obtaining such information would be of crucial importance considering that the evidence of increased mortality related to PVT in liver cirrhosis may indicate the need for randomized controlled trials to clarify the potential effectiveness of anticoagulant therapy to improve the survival. To this purpose it's proposed to establish an Italian register of patients with cirrhosis. In the second phase of the project is planned a 2-years follow-up program in order to assess whether the PVT be an additional risk factor for mortality or deterioration of the natural history in patients with cirrhosis.
The primary objective of this study was to estimate the prevalence of PE among consecutive ICU patients receiving MV who required thoracic computed tomography (CT) with contrast agent injection, regardless of whether PE was suspected clinically. The secondary objectives were to assess the association between PE and DVT, to identify risk factors for VTE, and to determine the outcome of VTE.