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NCT07015905
This study is researching an experimental drug called REGN7508 (called "study drug"). The study is focused on adults undergoing elective, unilateral (one side) total knee replacement surgery. The aim of the study is to see how effective the study drug is at preventing Venous Thromboembolism (VTE) and other related diseases after total knee replacement surgery. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drug (which could make the study drug less effective or could lead to side effects)
NCT07310693
This study aims to externally validate the CLOVER score, a machine learning-based predictive model designed to identify patients with venous thromboembolism (VTE) who are at increased risk of having an occult cancer. The study includes a retrospective cohort of patients with acute symptomatic VTE diagnosed between 2000 and 2022, and a prospective cohort of consecutively recruited patients from December 2025 to December 2027. The CLOVER model will be applied to all participants, and its ability to discriminate between patients with and without occult cancer will be evaluated. The study also assesses clinicians' satisfaction with the web-based tool (CLOVER-Web) developed to facilitate the use of the score in clinical practice.
NCT07288632
Multicenter, prospective observational study (15 Oncologic Centers, in Italy). The purpose of the study is to assess the thromboembolic potential in patients with oncogene-addicted and wild-type NSCLC. The primary aim of this project is to evaluate the association between oncogene mutations and levels of plasma parameters of the activated coagulation cascade as the plasma levels of TF, thrombin generation, IL 6, vWF, ADAMTS-13 activity, PAI-1, and soluble P-selectin in NSCLC patients. A total of 500 NSCLC patients with a diagnosis (cytologically or histologically confirmed) of locally advanced or metastatic disease will be enrolled in the study, with a ratio of 1:1 for oncogene addicted or wild-type group. The oncogene-addicted group (Group A): patients with at least one oncogene mutation (i.e., patients expressing EGFR mutations, KRAS mutation, ALK or ROS1 rearrangements); the wild type group (Group B): patients without oncogene mutations, categorized in 2 subgroups according to expression of PD1/PD-L1 mutation or not. Patients will be followed up prospectively for 6 months or until death, VTE event, loss to follow-up, or voluntary consent withdrawal. This study will evaluate the effects of EGFR, KRAS mutations and ALK/ROS 1 and PD-1/PD-L1 rearrangements on the expression of TF and thrombin generation or the interaction between inflammation and endothelial or platelet and cancer cells, in patients with NSCLC. The study will also evaluate the potential correlation between VTE events and the expression of oncogene mutations in patients with NSCLC. The results of this study could generate the hypothesis of including the genetic profile as variable for a risk-stratification tools and decision-making algorithms in NSCLC patients.
NCT06606275
This is a retrospective study of End-Stage Kidney Disease (ESKD) patients on dialysis receiving apixaban or warfarin at Tawam Hospital \[a tertiary care hospital in Al Ain, UAE\]. The study aims to assess the appropriateness of prescribing apixaban and warfarin in this population and evaluate their safety and effectiveness.
NCT04243122
Myeloproliferative neoplasms (MPNs) are blood disorders that occur when the body makes too many white or red blood cells, or platelets. This overproduction of blood cells in the bone marrow can create problems for blood flow and lead to various symptoms. One of the major problems is the formation of blood clots. These may form in the veins of a patient's legs or arms where they cause leg or arm pain, swelling or difficulty walking. These clots may travel to the lung and then cause chest pain, shortness of breath and sometimes death. Blood clots can also lead to poor or no blood flow to one's heart, brain, or other organs, causing damages that cannot be easily or ever repaired, such as stroke or heart attack. Patients diagnosed with certain types of MPN are associated with a higher risk of developing blood clots and related complications. For this reason, MPN patients are usually treated with low-dose aspirin, a common drug used for blood clot prevention, on long-term basis to prevent the formation of blood clots and other complications. However, recent studies also show that the risk of blood clots remains elevated in MPN patients treated with aspirin, and there may not be improvement or reduction in fatal or other events that are associated with blood clots. In addition, since this medical condition is rare, so there's a lack of studies done with high quality results to help physicians decide the best treatment plan for these patients. The study drug, apixaban, is a new type of orally-taken blood thinner that has been shown to be effective and safe for prevention and treatment of blood clots in various patient populations. The investigators will evaluate whether apixaban is safer and/or better at preventing blood clots and other complications in MPN patients compared to aspirin.
NCT03521908
A study to compare the risk of a major bleeding in participants who received 2 different blood thinning medications following a blood clot