View clinical trials related to Peripheral Vascular Diseases.
Filter by:The purpose of this study (superiority trial) is to compare the Supera® Peripheral Stent System with a standard nitinol self-expanding stent for treatment of femoro-popliteal arterial occlusive disease. Hypothesis: The Supera® stent is superior to a standard nitinol self-expanding stent, for treatment of femoro-popliteal artery disease in terms of (1) primary patency rate and (2) need for revascularization up to 24 months after stent insertion.
The BIOPACT RCT tiral investigates the efficacy and safety of stenosis, restenosis or occlusions in the femoropopliteal artery of patients presenting a rutherford classification 2,3 or 4 with a Passeo-18 Lux drug-coated balloon of Biotronik. The Paclitaxel eluting balloons are designed for percutaneous transluminal angioplasties in which the balloon will dilate the artery upon inflation and deliver the paclitaxel locally. An expected total of 151 patients will be treated with the Passeo-18 Lux and compared to a control group of another 151 patients that will be treated with the IN.PACT Admiral drug-coated balloon of Medtronic. Assignment to the treatment groups will be at random. The study will be conducted in two phases. A first pilot study phase of 120 patients distributed evenly over both treatment groups and a second phase to formally test the non-inferiority hypothesis. The balloon is coated with Paclitaxel intended to avoid cellular proliferation. The drug is released by means of rapid inflation as to release a high dose in a short amount of time. Patients will be invited for a follow-up visit at 1, 6 and 12 months post-procedure. The primary efficacy endpoints are defined as follows. Freedom from clinically-driven target lesion revascularization at 12 months. Freedom from device- and procedure-related death through 30 days post-index procedure, major target limb amputation through 12 months post-procedure and clinically-driven target vessel revascularization through 12 months post-index procedure. The secondary endpoints are defined as acute device success, acute procedural success , freedom from all cause of death, major target limb amputation and clinically driven target vessel revascularisation through 30 days post-procedure, sustained clinical improvement, no major adverse events through 6 and 12 months post-procedure, primary patency, target lesion revascularisation, target vessel revascularisation, binary restenosis, major target limb amputation, thrombosis at target lesion, change of walking impairment questionnaire score from baseline, change in target limb rutherford classification or ABI.
This study aims at evaluating the correlation between foot perfusion on angiographies performed before and after revascularization and limb salvage in patients with critical limb ischemia.
The purpose of this study is to evaluate the performance and safety of the Temporary Spur Stent System (TSS). The TSS is intended for use in conjunction with a commercially available drug coated balloon in the infrapopliteal arteries for the treatment of de novo or restenotic lesions. This study is a prospective, non-randomized, multicenter, single arm trial, with sites in New Zealand, Germany, and Switzerland. At least two and no more than 10 sites are expected to participate, with 100 subjects enrolled (no more than 40 at a single site). The study follow up will take place over a period of 365 days. A vessel recoil substudy will be included for a select group of subjects.
Prospective, multi-center 1:1 randomized trial to compare efficacy and safety of a stent-avoiding (using drug coated balloons) versus a stent-preferred (using drug eluting or interwoven stents) approach for treatment of complex femoropopliteal lesions TASC II (TransAtlantic Inter-Society Consensus for the Management of Peripheral Arterial Disease) Type B-D (stenosis >10cm, occlusions >5cm).
The primary objective of the VBX 17-04 registry is to collect post-market safety and performance data of the GORE® VIABAHN® VBX Balloon Expandable Endoprosthesis (VBX Stent Graft) in peripheral vessels in patients who require interventional treatment
Both drug-coated balloon and stents have been used for a number of years to treat subjects with Peripheral Artery Disease (PAD) and are recognized as very good treatment methods. However, due to a higher risk of blood clot formation, requiring a longer anticoagulant treatment, and the challenge of treating re growth of tissue extending through the metal mesh of the stent, the physicians try to reserve stent placement to situation where it's really needed, in case of flow-limiting vessel dissection or acute re-narrowing. The purpose of this study is to evaluate the utility of several procedural diagnostic techniques in helping the physicians to better decide whether a stent is needed or not. The study will also estimate the safety and efficacy of Passeo-18 Lux drug-coated balloon associated to Pulsar 18 bare metal stent when and where needed to treat PAD
This is a double-blinded, randomized, crossover design study to assess the effects of dietary nitrate supplementation (beetroot juice) on peripheral artery disease (PAD) patients (ages 50-85) diagnosed with Fontaine stage I or II PAD (as determined by vascular surgeon, Dr. Pipinos at UNMC). Exclusion criteria include: 1) experience severe claudication (leg pain) at rest or tissue loss due to PAD (Fontaine stage III and IV), 2) have limited walking capacity due to conditions other than PAD, 3) are already supplementing with a form of dietary nitrate, or 4) have an allergy to beetroot juice. Subjects will be required to visit the lab 3 times and will be randomized to receive either the supplement or the placebo for the 2nd and 3rd visits. There will be a washout period of 14 days between the 2nd and 3rd visits. Visit 1 will take approximately 2 hours and the 2nd/3rd visits will take approximately 1.5 hours. Total experimentation period will last approximately 15 days. Visit 1 will consist of non-invasive baseline testing including assessment of endothelial function (flow-mediated dilation by ultrasound imaging), maximal walking capacity (Gardner treadmill protocol), leg function (near-infrared spectroscopy, time to onset claudication, blood flow to lower extremities), and body core temperature (rectal thermometer). Visits 2 and 3 will require consumption of either the supplement or placebo. The same tests from the baseline measurements will be performed for visits 2 and 3. There will be a recommended fourth visit, albeit not required, to review study results.
Serum uric acid level is a commonly measured biomarker. The association between serum uric acid level and the risk of developing cardiovascular diseases has been observed in some studies, while others showed controversial results. Estimation of this association may help to predict cardiovascular outcomes and may guide new treatment strategies. The hypothesis is that increased serum uric acid level is associated with a range of cardiovascular diseases.
Clopidogrel is a prescription medicine used to minimize blood clot formation in patients with cardiovascular disease, particularly those undergoing heart catheterization and stroke. A substantial amount of medical evidence has proven that patients with stroke or heart diseases can benefit from this medicine. However, significant variability in such expected benefits has been found among individuals receiving clopidogrel, with some patients not having the benefit of reduced complications and adverse cardiovascular events. Prior studies have demonstrated a significant association between certain variants on patient's genes (e.g., CYP2C19) and poor response to clopidogrel and, therefore, major adverse cardiovascular events. Variation in other genes and other factors such as platelet activation, weight, diabetes mellitus (a medical condition that produces high blood sugar), concomitant use of other drugs, and smoking status have also been proposed to be related to the same adverse outcomes. In this study, the investigators would like to determine a possible association between these genes and the response to the medication among Caribbean Hispanic cardiovascular patients on clopidogrel. In other populations, it is known that patients with certain genetic variants have lower or magnified responses to this medication when compared to those individuals taking the same dose and not carrying the genetic variations. However, a fundamental gap remains in understanding whether the genomic diversity of Caribbean Hispanics accounts for the observed high inter-individual variability of clinical outcomes to preventive dual antiplatelet therapy (DAPT) with clopidogrel.