ThRombosis ExclUsion STudy
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 5,935
- 试验地点
- 17
- 主要终点
- VTE Exclusion
研究概览
简要总结
Primary objective: To demonstrate the ability of STA® - Liatest® D-Di XL combined with a clinical PreTest Probability (PTP) to safely exclude pulmonary embolism (PE) and deep venous thrombosis (DVT) as measured by Negative Predictive Value (NPV) and sensitivity.
Secondary objectives:
- To estimate additional STA® - Liatest® D-Di XL accuracy parameters, including specificity and positive predictive value (PPV)
- To constitute a plasma bank to be used for future studies with other DDi assays under development by Stago.
详细描述
The study population will be selected from prospective, consecutive ambulatory outpatients suspected of having venous thromboembolism. Patients will be diagnosed for VTE (PE or DVT) based on local standard of care. Samples will be collected (additional blood draw or additional volume during blood draw) for future testing with new D-Dimer assay.
In case of Low/Moderate PTP score and negative VTE diagnosis, patients will be followed for 3 months to evaluate potential development of deep venous thrombosis and/or pulmonary embolism.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- — 至 79 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patient is < 80 years old.
- •Patient presents at least one of these symptoms indicative of proximal DVT or PE:
- •symptoms for proximal DVT: leg pain, tenderness (discomfort through palpation), leg swelling, and /or edema,
- •symptoms for PE: hemoptysis, lung related chest pain, dyspnea.
- •Patient provides written informed consent to participate in the study
- •Patient is willing to comply with specified follow-up evaluation at 3 months and can be contacted by telephone.
排除标准
- •Patient presenting with a condition that may be associated with increased D-dimer levels, even in the absence of VTE, such as:
- •Fibrinolytic therapy within the previous seven (7) days,
- •Disseminated intravascular coagulation
- •Bone fracture or surgery (with general anesthesia longer than thirty (30) minutes) within the previous one (1) month,
- •Deep hematoma diagnosed by imaging techniques within the previous one (1) month,
- •Disseminated malignancies and active cancer (active cancer defined as: cancer for which therapeutic or palliative treatment is either ongoing at the time of enrolment or has stopped less than six (6) months before enrolment),
- •Sepsis, severe infections, pneumonia within the previous 1 month,
- •Known liver cirrhosis,
- •Pregnancy or having delivered within the previous 1 month,
- •Atherosclerotic vascular disease thrombosis within the previous 1month (e.g. myocardial infarction, stroke, coronary syndrome, peripheral artery disease stage III or IV),
- •Sickle cell disease,
- •Patients presenting with a suspect thrombotic event related to catheter implantation
- •Ongoing therapeutic anticoagulants (curative and preventive regimen) started twenty four (24) hours or more before blood draw (except aspirin and platelet inhibitors)
- •Previous anticoagulant therapy stopped less than three (3) months before blood draw (except aspirin and platelet inhibitors)
- •Patients with previous DVT/PE occurred less than three (3) months from screening.
- •Suspect thrombotic events in other locations at screening, including distal to the knee and upper extremity DVT (based on standard of care examinations)
- •Patients with known tissue plasminogen activator (tPA) deficiency
- •Patient participating or who has participated within one month of enrolment in another investigational study
- •Major co-morbid condition(s) or other reasons that could limit the patient's ability to participate in the study or to comply with follow-up requirements, or impact the scientific integrity of the study.
结局指标
主要结局
VTE Exclusion
时间窗: Initially, we planned to enroll subjects suspected of PE/DVT to constitute a plasmabank, then perform testing of STA- Liatest D-Di XL for on this latter on 48 months. However due to plasmabank unstability, Stago decided to not perform the testing phase.
According to the ThRombosis ExclUsion STudy (TRUST) protocol, the primary objective of the study was to demonstrate the ability of STA® - Liatest® D-Di XL combined with a clinical PreTest Probability to safely exclude pulmonary embolism (PE) and deep venous thrombosis (DVT) as measured by Negative Predictive Value (NPV) and sensitivity. The first step was to evaluate the stability of the plasmabank using VIDAS system. The preliminary results showed that the plasmabank was unusable with a high rate of unstable samples. Stago, decided to not use this plasmabank to assess the ability of STA® - Liatest® D-Di XL to safely exclude PE and DVT.
次要结局
- VTE Exclusion(Initially, we planned to enroll subjects suspected of PE/DVT to constitute a plasmabank, then perform testing of STA- Liatest D-Di XL. Due to plasmabank unstability, Stago decided to not perform the testing phase for the STA-D-Di XL and future DDi assays.)