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Thrombosis clinical trials

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NCT ID: NCT03672006 Not yet recruiting - Clinical trials for Central Venous Catheter Thrombosis

t-PA Prophylaxis to Prevent Catheter-associated Thrombosis and Infection

TOPCAT
Start date: October 2018
Phase: Phase 2
Study type: Interventional

The purpose of this pilot study is to test feasibility of concept, consent and enrollment rates, and mechanics of study designed to assess if intra-catheter dwells of tissue plasminogen activator (t-PA) is effective in decreasing the rate of clinically diagnosed central line associated blood stream infection (CLABSI) or venous thromboembolism (VTE) in central venous catheters (CVC) compared to standard of care heparin dwell.

NCT ID: NCT03662880 Not yet recruiting - Clinical trials for Left Atrial Thrombosis

Uses of CMR in Detection of Left Atrial Thrombus

Start date: April 2019
Phase: N/A
Study type: Interventional

The incidence of rheumatic heart diseases have not declined in our population .Rheumatic heart diseases, often neglected by media and policy makers, is a major burden in developing countries where it causes most of the cardiovascular morbidity and mortality in young people, leading to about 250000 deaths per year worldwide. Mitralstenosis is one of the most common complications of rheumatic heart diseases in our community. A treatment of choice in suitable cases is percutaneous Mitral Commissurotomy .Preoperative evaluation for Percutaneous Mitral Commissurotomy typically requires trans-esophageal echocardiogram (TEE) for the presence of LA thrombus. TEE is currently considered the gold standard for LA thrombus detection given its favorable sensitivity and specificity . With recent advances,CMRis now becoming another reliable diagnostic method for evaluation of thrombus in the left atrium, particularly when delayed imaging is performed. Whereas TEE is a semi-invasive procedure, CMRis totally non-invasive . Effectiveness of left ventricular thrombus detection by CMR has been validated, and it is now becoming a preferred imaging modality for evaluation of left ventricular thrombus . Moreover, in patients undergoing pulmonary vein isolation,Cardiac Magnetic Resonance was validated against TEE for LA & left atrial appendage . To our knowledge, there are few data regarding the utility of Cardiac Magnetic Resonance for detection of LA thrombus in patients undergoing Percutaneous Mitral Commissurotomy.

NCT ID: NCT03659864 Not yet recruiting - Healthy Volunteers Clinical Trials

The Role of Eicosanoids in the Cardiovascular Actions of Inhaled Nanoparticles

ECOARM
Start date: September 3, 2018
Phase: N/A
Study type: Interventional

Nanoparticles (NPs) are minute pieces of material to which we are exposed every day in the air we breathe. Some are naturally occurring and have no impact on health, whereas others are produced from urban air pollution and can worsen diseases, particularly in the lungs and blood vessels. However, there is great interest in developing new NPs because of their unique properties that are useful for many applications, such as engineering, electronics and for drug delivery. At present it is unclear exactly what effects inhaled NPs have. Our current programme of research is designed to assess whether a specialized group of fats made in the body (called eicosanoids) drive the cardiovascular effects of NPs. The changes in the profiles of these fats will provide unique fingerprints that could be used to predict the actions of new NPs. In the proposed clinical study we shall investigate the effects of both environmental and manufactured carbonaceous NPs on the lungs, blood vessels, blood clotting, and levels of eicosanoids in blood and urine. We have previously investigated the cardiovascular effects of carbon nanoparticles after inhalation in man, and these experiments will investigate how the shape, size and composition of carbon particles influence these responses. These experiments will provide new insight into how NPs affect the body and pave the way for new ways to predict the toxic effects of NPs (reducing the need for animal experiments). The findings will enable the design of novel NP without the harmful characteristics of those found in air pollution.

NCT ID: NCT03650127 Enrolling by invitation - Type 2 Diabetes Clinical Trials

Returning Genome and Metabolome Data to FinTerveys 2017 Participants: P5.fi FinTerveys Study

P5
Start date: February 2, 2018
Phase:
Study type: Observational

P5.fi study - P4 together with a fifth 'P' and '.fi' for population health Finally Implemented in Finland - studies the value of returning genetic and metabolomic risk information in two diseases (coronary heart disease and type 2 diabetes) and one feature (venous thromboembolism). The hypothesis of the study is that 1) combining genetic and metabolic risk with traditional risk factors adds value to the personal risk assessment of these diseases, 2) such risk information can be provided to individuals using a web based user portal in an easily understandable and useful format, and 3) receiving genetic and metabolomic risk information has an effect on the health of the study participants. The study is a continuation of FinHealth 2017 -study, which involved more than 7,000 Finns from around the country. The participants of FinHealth were invited to participate in P5.fi -study. The new research utilises information, samples, and measurements obtained in the FinHealth Study. Prospective clinical significance of selected genetic and metabolomic risk scores will be studied in 30.000 Finnish individuals. The study will analyze the genetic and metabolomic profile of the P5.fi participants and develop and test a protocol for returning them health related risk information. The impact of the intervention will by followed up by questionnaires and national health registers for five years.

NCT ID: NCT03649594 Not yet recruiting - Clinical trials for Cardiovascular Diseases

Stratification of the Risk for Subclinical Leaflet Thrombosis Post TAVI in 3- Versus 6-month DAPT Using TEG(R)

ADAPTAVI
Start date: November 1, 2018
Phase: Phase 4
Study type: Interventional

Transcatheter aortic valve implantation (TAVI) has become the standard of care in elderly patients at increased risk for surgical aortic valve replacement . However, the optimal antithrombotic strategy post TAVI is still unclear. Current European guidelines recommend dual antiplatelet therapy (DAPT) for 3 to 6 months.The prevalence of subclinical leaflet thrombosis after TAVI is 15% up to 40%, but its clinical long-term relevance is uncertain. Thromboelastography (TEG(R)) can be used as a point-of-care system evaluating a patient's individual hemostasis profile. For the detection of transcatheter valve thrombosis it may be superior to conventional platelet function testing because global hemostasis can be assessed in addition to platelet function. The investigators intend a controlled trial recruiting patients undergoing TAVI. In a two-arm parallel assignment the investigators will randomize for either acetylsalicylic acid plus clopidogrel for 3 months vs. 6 months post TAVI and serially perform TEG(R) as well as further platelet function testing (multiple electrode aggregometry) and conventional coagulation testing. The main objective is to find surrogate TEG-derived markers or models stratifying the risk for subclinical leaflet thrombosis after TAVI. TEG(R)-based prediction of patients at risk for leaflet thrombosis may enable restricting long-term DAPT or rather recommending oral anticoagulation to the patients who really need it.

NCT ID: NCT03634124 Not yet recruiting - Clinical trials for Deep Vein Thrombosis

Generation of Thrombin and Prediction of Deep Vein Thrombosis Post Prosthetic Orthopedic Surgery of the Lower Limbs

GT-PT
Start date: September 2018
Phase: Phase 3
Study type: Interventional

The numerical ratio between the value of the thrombin generation test performed without soluble thrombomodulin and the value of the thrombin generation test performed in the presence of soluble thrombomodulin, performed pre-surgically, could predict the risk of early venous thromboembolism after placement of total hip or knee prosthesis.

NCT ID: NCT03631147 Not yet recruiting - Cirrhosis Clinical Trials

The Effect of Rifaximin on Portal Vein Thrombosis

ERPVT
Start date: September 3, 2018
Phase: N/A
Study type: Interventional

The aim of this study is to evaluate the efficacy of rifaximin in the treatment of portal vein thrombosis in cirrhotic patients

NCT ID: NCT03613402 Not yet recruiting - Venous Thromboses Clinical Trials

BRAVO - Betrixaban Registry Using Real Time Observations in Acute Medical Illness to Assess Venous Thrombosis and Bleeding Outcomes

Start date: September 2018
Phase:
Study type: Observational

Part 1 - Evaluate the real-world implementation of extended prophylaxis with betrixaban in the acutely ill hospitalized medical population Part 2 - Describe patterns of Venous thromboembolism (VTE) prophylaxis in acutely ill medical patients who qualify for extended VTE prophylaxis

NCT ID: NCT03612856 Not yet recruiting - Clinical trials for End Stage Renal Disease

Safety and Efficacy Study of AB023 (Xisomab 3G3) in End Stage Renal Disease Patients on Chronic Hemodialysis

Start date: October 2018
Phase: Phase 2
Study type: Interventional

This study evaluates the safety and efficacy of AB023 (xisomab 3G3) in patients with end stage renal disease on chronic hemodialysis. Two dose levels will be evaluated in two cohorts. Within each cohort the patients will be randomized to receive either AB023 (xisomab 3G3) or placebo (at a ratio of 2:1 active: placebo).

NCT ID: NCT03611894 Completed - Stroke Clinical Trials

Comparison of the Radiological Pattern Between the Cerebral Stroke of Arterial and Venous Origin

PATTERN
Start date: January 1, 2017
Phase:
Study type: Observational

There are few published data on the patterns of parenchymal imaging abnormalities in a context of cerebral venous thrombosis (CVT). The objectives of the present study were to describe the patterns of parenchymal lesions associated with CVT and to determine the lesion sites.