Active clinical trials for "Thrombosis"

The objective of this study is to observe the safety, tolerability, and compliance in the use of Fragmin® for prolonged thromboprophylaxis in post-surgery high-risk orthopedic patients.

The purpose of this study is to determine the effect of clopidogrel or aspirin reactivity as measured by a point-of-care platelet function assay on thrombotic or bleeding events after percutaneous coronary intervention (PCI) with drug eluting or bare metal stent. Methods: Platelet reactivity on clopidogrel and aspirin therapy is measured before PCI with VerifyNow (Accumetrics Inc.,San Diego, CA, USA) P2Y12 or aspirin assay respectively in 1000 consecutive patients from 20 centers in France undergoing coronary angioplasty with stent. Exclusion criteria are: Acute myocardial infarction, treatment with vitamin K antagonists and the use of antiGP2b3a before PCI. All patients are pre-treated with clopidogrel and aspirin. Non-response to aspirin or clopidogrel is determined according to the result of the VerifyNow assay (cut off : < 15 % for P2Y12 and > 550 ARU for aspirin). The primary end point is the occurrence of definite or probable stent thrombosis (ARC definition) and the secondary end-points include global and cardio-vascular mortality, non fatal myocardial infarction and major bleeding. A clinical evaluation is scheduled at discharge and by telephone contact at one month and one year.

We are performing a research study to learn more about the control of an individual's blood thinning (anticoagulation) on warfarin. Individuals from an anticoagulation clinic are being asked to participate in order to see if a lottery which provides the opportunity to win money in combination with the use of the Med-eMonitor might be useful in helping patients to achieve better control of their anticoagulation therapy. Half of the participants will be enrolled in the lottery arm and the other half will be a control group who will receive the Med-eMonitor only.

The purpose of this study is to determine different risk factors of thromboembolic disease. Different points will be studied do different types of thromboembolic disease (distal Deep Vein Thrombosis (DVT), proximal DVT, Pulmonary Embolism (PE) and DVT, PE without DVT) have the same clinical significance (risk factors and prognosis) ? Is it necessary to obtain a detailed history of thromboembolic disease ? Do older patients have particular risk factors ? Do preventive treatments modify the level of risk factors and the clinical signs of thromboembolic disease ? Do predictive clinical scores have the same performance for both in and outpatients ? Can patients with a potential high level of thromboembolic risk (surgery, pregnancy) but no clinical thromboembolic symptoms, develop a low risk ? The evolution of the disease in patients with negative or positive Venous ThromboEmbolism (VTE) exploratory tests.

Patients diagnosed with pulmonary embolism (blood clot in the lung) or deep vein thrombosis (blood clot in a leg vein) are at risk for these blood clots to reoccur. Anticoagulant (blood-thinning) drugs are normally given immediately after the clot is discovered and are continued for a period of 3 or 6 months during which time the risk for recurrence is highest. Research has shown that when oral anticoagulants are used appropriately during this period, patients are less at risk for a recurrent blood clot and this risk reduction outweighs the potential for bleeding to occur. In this study, patients who had a blood clot in the lung or in a leg vein and completed 6 months of treatment with daily oral vitamin K antagonists (acenocoumarol or warfarin) or once-weekly injections of SR34006 (a new anticoagulant drug) will receive an additional 6 months of once-weekly SR34006 injections or injections of a solution containing no drug (placebo). This trial will evaluate whether patients treated for an additional 6 months with SR34006 have fewer recurrences of blood clots when compared to patients treated with placebo. Assignment to either SR34006 or placebo will be purely by chance. Neither the patients nor their doctors will know which treatment is being given.

To examine the associations of common variation in inflammation/thrombosis genes with intermediate quantitative phenotypes and subclinical coronary atherosclerosis in the Coronary Artery Risk Factor Development in Young Adults (CARDIA) Study, a large, bi-racial cohort study.

To determine the effects of six genes on thrombotic risk factors known to be associated with the development of heart disease.

This is a retrospective study performed on medical records, in order to compare the number of venous thromboses, the surgery duration, the complications rate and the duration of anastomosis in breast reconstructive surgeries by the DIEP (Deep Inferior Epigastric Perforator Flap) technique, with or without the use of a venous coupler.

This registry is designed to understand acoustic pulse thrombolysis (APT) treatment regimens used as standard of care globally for pulmonary embolism. The registry will include individuals who have already received the APT treatment and those that will undergo APT treatment.

Venous thromboembolism (VTE) is a common disease in cancer patients and one of the major causes of cancer-associated mortality. Risk for developing VTE increases when cancer patients are receiving chemotherapy. Current risk scores for predicting cancer-associated VTE in ambulatory patients had low/moderate discrimination and clinical sensitivity. These models use clinical and biochemical parameters of the patient. In the development of VTE genetics play a relevant role. The product Thrombo inCode (TiC) assess VTE risk prediction by using a combination of a genetic risk score (GRS) and clinical parameters from the patient. The investigators hypothesized that the GRS included in TiC combined with clinical parameter some of them associated with cancer could be better predicted by TiC than by current risk scores (Khorana score). After publishing the primary results in 2018, we have expanded the GRS in a external validation cohort adding gliomas and biliary tract tumors. Also we have incorporated the assessment of D-dimer in order to improve the predictive capability.