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Venous Thromboembolism clinical trials

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NCT ID: NCT05464901 Completed - Clinical trials for Venous Thromboembolism; Deep Vein Thrombosis; Pulmonary Embolism; Anticoagulants

VTE and the Related Factors Associated With Higher Rates of PE After a DVT in Southwestern China

Start date: December 1, 2006
Phase:
Study type: Observational

Little is known about the current management status of venous thromboembolism (VTE) in Southwestern China. We aimed to investigate the status of anticoagulant administration in VTE in Southwestern China and assess the potential predictors of deep vein thrombosis (DVT) complicated pulmonary embolism (PE). We extracted data from YiduCloud database from December 2006 to November 2018 and performed a cross-sectional survey of VTE. The demographics, laboratory tests, and anticoagulants were collected and analyzed in the logistic regression model, classification tree and Random Forest model.

NCT ID: NCT05461807 Completed - Cancer Clinical Trials

An Observational Study Called H2H-OSCAR-US to Learn More About How Well Rivaroxaban Works and How Safe it is Compared to Apixaban Under Real World Conditions in People in the US With Cancer Who Have Problems Due to Formation of Blood Clots in the Veins (Venous Thromboembolism)

H2H-OSCAR-US
Start date: July 14, 2022
Phase:
Study type: Observational

This is an observational study in which patient data from the past on venous thromboembolism (VTE) in people with cancer is studied. In observational studies, only observations are made without specified advice or interventions. People with VTE have problems due to the formation of blood clots in the veins. Blood clots can reduce the flow of blood to vital organs such as the lungs, which can lead to their damage. VTE can also be "recurrent". This means that the blood clots have returned after treatment. People who have cancer are more likely to develop VTE, recurrent clots, and bleeding on blood thinning treatments. To prevent the formation of new or recurrent clots in people with cancer, a newer type of blood thinner is available, called direct-acting oral anticoagulant (DOAC). Rivaroxaban and apixaban are the most used DOACs in the US. They work by blocking a certain step in the blood clotting process, the activation of a protein called Factor X. Previous studies show that DOACs may reduce clot risk compared to other available treatments but may potentially lead to more frequent bleeding. Studies looking at these points in direct comparison of rivaroxaban and apixaban a currently missing. Therefore, this study will collect real-world data from the US to learn how well rivaroxaban works and how safe it is compared to apixaban in people with cancer and VTE who are at low risk for bleeding. To do this, researchers will look at the proportion of patients that will develop: - recurrent blood clots in the veins after treatment - bleeding in a critical organ - bleeding that requires a hospital stay within 3 and 6 months after participants had a VTE that was treated with rivaroxaban or apixaban. De-identified data collected will cover 12 months before and at maximum 6 months after this VTE. They will come from US electronic health records and will cover the years 2012 to 2020. No visits or tests are required as part of this study.

NCT ID: NCT05439187 Completed - Clinical trials for Venous Thromboembolism

Risk Factors of Venous Thromboembolism After Incisional Ventral Hernia Repair.

Start date: January 1, 2018
Phase:
Study type: Observational

Aim of our study is to find frequency and risk factors for venous thromboembolism development in patients who underwent surgery for incisional ventral hernia. There were 240 patients enrolled in our retrospective observational cohort study. Included patients were operated for incisional hernia in Saveljev University Surgery Clinic from January 2018 to December 2019. Compression duplex ultrasound of lower legs veins was performed in 2-4 days after surgery for all participants. The primary endpoint was the occurrence of the venous thromboembolism event, including pulmonary embolism.

NCT ID: NCT05264168 Completed - Pulmonary Embolism Clinical Trials

Prediction of the COBRRA VTE Anticoagulant Trial in Healthcare Claims Data

Start date: May 3, 2021
Phase:
Study type: Observational

Investigators are building an empirical evidence base for real world data through large-scale replication of randomized controlled trials. The investigators' goal is to understand for what types of clinical questions real world data analyses can be conducted with confidence and how to implement such studies.

NCT ID: NCT05221879 Completed - Clinical trials for Dose Adjustment of Enoxaparin in ICU Patients

Anti-factor Xa Based Venous Thromboembolism Prophylaxis

Start date: June 23, 2019
Phase: N/A
Study type: Interventional

Introduction: Venous thromboembolism (VTE) in the intensive care unit (ICU) is associated with significant morbidity and mortality therefore prevention is imperative to reduce its burden. VTE prophylaxis in ICU patients is primarily pharmacological using low molecular weight heparin. This study aims to determine the proportion of ICU patients receiving VTE prophylaxis that achieves appropriate anti-factor Xa activity (aFXa) prophylactic levels and to characterize this patient population Methods: Seventy-five patients admitted to the General ICU were included. Peak and trough aFXa levels were measured at 4 and 23 hours respectively after receiving the second consecutive daily enoxaparin 40 mg sc injection. Patients in whom peak aFXa levels were found to be sub-prophylactic, peak and trough levels were repeated as above

NCT ID: NCT05209048 Completed - Clinical trials for Venous Thromboembolism

Risk Factors and a nOmogram of Venous thromboEmbolism in Patients After liveR Transplantation(ROVER Study)

Start date: August 1, 2018
Phase:
Study type: Observational

Liver transplantation is currently an effective treatment for end-stage liver disease. The high incidence of thrombotic related complications in the early postoperative period after orthotopic liver transplantation(OLT) has been attributed to many factors, such as the long operation time, the high trauma, the need for prolonged bed rest after operation, and the instability of coagulation status in the early postoperative period. Among them, venous thromboembolism (VTE) is one of the most common complications after liver transplantation, including deep vein thrombosis (DVT) and pulmonary embolism (PE), which seriously affect the survival of patients after transplantation. Although the Caprini score is currently recognized as a more mature thrombotic risk assessment tool in patients undergoing abdominal surgery. However, because of the long operation time of liver transplantation and central venous catheterization and other factors, the majority of surgical patients score ≥ 5 points, which are all very high-risk grades. It loses the power of this model for risk stratification and targeted prevention. How to correctly identify people at high risk of VTE after OLT, early diagnosis of VTE and aggressive implementation of correct preventive measures appear essential. Therefore, this study was designed as a single center case-control study to review and analyze the incidence, clinical characteristics, and associated risk factors of VTE after OLT, and to establish a nomogram risk assessment model and validate its predictive efficacy.

NCT ID: NCT05195372 Completed - Clinical trials for Venous Thromboembolism

Effectivity and Safety of Different Anticoagulants in Patients With Thromboembolic Antiphospholipid Syndrome

Start date: January 1, 2015
Phase:
Study type: Observational

Retrospective monocentric registry to evaluate the efficacy and safety of different anticoagulants in patients with thromboembolic antiphospholipid syndrome

NCT ID: NCT05185804 Completed - COVID-19 Clinical Trials

Clinical Trial of Dimolegin (DD217) in Prevention of Thrombotic Complications in Patients With COVID-19

Start date: February 8, 2021
Phase: Phase 3
Study type: Interventional

Study purpose was to study the safety and efficacy of Dimolegin - DD217 as a drug for prevention of thrombotic complications compared to Clexane (enoxaparin sodium) - the standard therapy currently prescribed to patients hospitalized with COVID-19. Patients who met all inclusion criteria and no exclusion criteria were randomized into two therapy groups: - Group 1 - test drug Dimolegin - DD217 (60 mg orally, 1 time per day); - Group 2 - reference drug Clexane (40 mg subcutaneously, 1 time per day). The study drugs were taken once a day until: - the discharge from the hospital due to recovery or positive dynamics; - or up to 30 days of the patient's stay in the hospital; - or until the Investigator decides to discontinue the therapy for other reasons. Planned: screening of up to 450 patients, randomization: 430 (215 per group). The required number of patients is 200 per group as a result of the entire study.

NCT ID: NCT05150938 Completed - Clinical trials for Treatment of Venous Thromboembolism in Cancer Patients

A Study to Gather Information About Rivaroxaban in Patients in Sweden With Cancer Who Also Have Thrombosis (OSCAR-SE)

Start date: March 18, 2022
Phase:
Study type: Observational

This is an observational study in which patient data from the past on venous thromboembolism (VTE) in patients with cancer is studied. VTE is a condition in which a patient has problems due to the formation of blood clots in the veins. Blood clots can reduce the flow of blood to vital organs such as the heart and lungs, which can lead to them becoming damaged. VTE can also be "recurrent". This means that the blood clots have returned after treatment. People who have cancer have an increased risk of developing VTE. Three main types of anticoagulation treatments ("blood thinners") have been available for patients with cancer who also have VTE - Low molecular weight heparins (LMWHs) - Vitamin K antagonists (VKAs) - Non-vitamin K antagonist oral anticoagulants (NOACs) The treatment rivaroxaban belongs to the NOACs. Compared to other treatments available to patients who have cancer and VTE, NOACs may cause fewer medical problems and can be easier for patients to take correctly. In this study, the researchers will collect data about: - the type of VTE treatments given and for how long the treatments are taken - the risk of blood clots returning in the veins after treatment, any events of major bleeding, and the number of deaths in patients with cancer who do not have a high risk of bleeding The researchers will compare this information in the patients - who received rivaroxaban to the patients who received LMWHs - who received NOACs to the patients who received LMWHs. There will be no required visits with a study doctor or required tests in this study. The researchers will look at the health information from adult patients in Sweden who were diagnosed with cancer between 2013 and 2019 and also have VTE. The researchers will collect this information from Swedish health registers including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

NCT ID: NCT05143567 Completed - covid19 Clinical Trials

Hemostasis and Inflammation in COVID-19 Patients With Venous and Arterial Thrombotic Complications

Start date: November 1, 2021
Phase: N/A
Study type: Interventional

The study is aimed at assessing the role of the activity of high-risk markers of thrombotic events (MCP-1, MIP1α, IP-10, phosphatedylserine, calreticulin) on the development of thrombotic complications in patients with COVID -19.