17 Clinical Trials for Various Conditions
The purpose of this study is to evaluate the preliminary safety and efficacy of the daVinci surgical system (computer-assisted surgery) for use in vascular surgery procedures. Although the daVinci Surgical System is FDA approved and widely used for surgical procedures for urology, cardiac, general, and gynecologic procedures, it is not currently approved specifically for use in vascular surgery and the FDA has required the PI to conduct a small feasibility study under an IDE. The investigators are seeking approval by the FDA to utilize the daVinci Surgical System in vascular surgery and to conduct a future clinical trial.
This is the first clinical research trial in which intravenous Prostaglandin E1 (PGE1 is a vasoactive hormone) will be used as supportive treatment along with the angioplasty procedure to treat or open up a blocked artery within one lower limb or the most affected of two limbs in subjects with Peripheral Arterial Occlusive Disease.
This is a randomized controlled trial designed to evaluate the role of screening for and intervening on patients with high on treatment platelet reactivity undergoing lower extremity arterial endovascular interventions.
This study is a comparison of two different ways to treat blockage in the artery of the thigh. The first is an older way with incisions in the groin and just above the knee. A plastic tube is then inserted to make a bypass from the groin to the knee. The second treatment offered is through a needle hole in the groin. A thin plastic tube covering a metal stent is inserted into the artery and released to bypass the blockage from inside the artery. No incisions are needed. Patients are enrolled and then selected for one treatment method or another by chance. The patients will be followed for two years to see how the two different treatment methods work compared to each other.
The purpose of this study is to evaluate the safety of increasing doses of intra-thrombus Plasmin (Human) in acute peripheral arterial occlusion (aPAO). The ability of these Plasmin doses to dissolve the clots will be estimated by arteriography.
The use of drug coated balloon (DCB) in patients with critical limb ischemia (CLI) and tissue loss has recently raised some concerns after the IN.PACT deep trial using paclitaxel coated balloon angioplasty in the tibial arteries was terminated. The investigators objective is to establish the safety and efficacy of drug coated balloon (DCB) for femoropopliteal occlusive disease in patients with critical limb ischemia (CLI) and tissue loss. The investigators objective is to establish the safety and efficacy of drug coated balloon (DCB) for femoropopliteal occlusive disease in patients with critical limb ischemia (CLI) and tissue loss.
The purpose of this study is to test the effects of leg exercise assistive paddling (LEAP) therapy during prolonged sitting (PS) on vascular and functional performance in those with peripheral artery disease (PAD) and age-matched controls. LEAP therapy is a novel application of passive limb movement to enhance blood flow through the legs without muscular contractions. Specifically, LEAP therapy is the rotational passive movement of the lower leg about the knee from 90 to 180 degrees of rotation at a cadence of 1Hz. Previous literature has indicated that this movement pattern can produce robust increases in blood flow in the passively moved limb in healthy individuals, and passive limb movement may protect vascular function during PS. However, the impact of LEAP therapy to improve blood flow in the legs of those with PAD during PS is unknown. Participants will participate in a randomized cross-over design study with 2 visits (LEAP therapy and no LEAP therapy). For the first visit, participants will be randomly allocated to receive LEAP therapy during 2.5 hours of PS or not. For the second visit, participants will sit for 2.5 hours and will receive the condition that they did not previously receive. Before and after PS, the following measurements will be made: flow-mediated dilation of the popliteal and brachial arteries, arterial stiffness with tonometry techniques, microvascular vasodilatory capacity and skeletal muscle metabolic rate with near-infrared spectroscopy, autonomic nervous system function, and there will be blood drawn from the antecubital vein. After PS, participants will participate in a graded exercise test to assess functional walking capacity. Finally, during PS, near-infrared spectroscopy on the calf muscles and electrocardiogram will be collected continuously to monitor muscle oxygen availability and autonomic activity, respectively.
Peripheral artery disease (PAD) is associated with elevated oxidative stress, and oxidative stress has been implicated as the cause of reduced endothelial reactivity in individuals with PAD. Endothelial function is important because the endothelium contributes to the dilation of arteries during exercise, thereby implicating impaired endothelial function as a mechanism contributing to exacerbated exercise-induced ischemia. Therefore, the purpose of this study is to test the hypothesis that acute exogenous diroximel fumarate (Vumerity) intake will improve antioxidant capacity, thereby reducing oxidative stress and improving vascular function and walking capacity in those with PAD. During this study, participants will be administered diroximel fumarate or a placebo, and the acute effects of diroximel fumarate on vascular function and walking capacity will be assessed. Vascular function and walking capacity will be assessed with flow-mediated dilation, arterial stiffness, head-up tilt test, blood biomarkers, near-infrared spectroscopy, and a treadmill test. There will be a follow-up visit to assess blood work after diroximel fumarate.
Peripheral artery disease (PAD) due to leg artery blockages can result in painful leg muscles, skin ulcers and infection due to poor blood flow. In severe forms, the only treatment may be amputation. Adult stem cells injected into affected legs may cause new blood vessel formation and improve blood flow. The purpose of this study is to determine the feasibility and safety of injecting adult stem cells into the leg muscles of patients with severe PAD, in an attempt to improve blood flow.
The purpose of this study is to directly compare the safety and efficacy of intra-thrombus alfimeprase 0.3 mg/kg with placebo in acute peripheral arterial occlusion (PAO) as measured by a 30 day open vascular free surgery rate.
The purpose of this study is to directly compare the safety and efficacy of intra-thrombus alfimeprase 0.3 mg/kg with placebo in acute peripheral arterial occlusion (PAO) as measured by a 30 day open vascular free surgery rate.
The LimFlow System is intended for endovascular, minimally invasive procedures in patients who have a clinical diagnosis of chronic limb-threatening ischemia and who have been determined to have no surgical or endovascular treatment option (i.e., "no option").
The PATHFINDER I Registry is a prospective, non-randomized, single arm, multicenter observational study. It is a pilot registry study towards a subsequent large pivotal phase registry. This pilot registry is aimed to evaluate the performance (peri-procedural) and clinical outcomes (intermediate and long-term) of the AURYON™ Atherectomy System, within the initial launch phase of the product in the market.
The purpose of this study is to evaluate the safety and efficacy of an excimer laser in the treatment of patients with lower extremity vascular disease with chronic total occlusions.
The purpose of this study is to determine whether using Taclonex ointment under a hydrogel patch is more effective than using the ointment alone in treating psoriasis. Taclonex ointment is currently FDA approved for use on psoriasis. The hydrogel patch is a type of adhesive pad and contains no medications. It is currently FDA approved and has been shown to be safe and virtually free of side effects. The hypothesis is that psoriatic plaques which are treated with Taclonex ointment under a hydrogel patch will be more effectively treated compared to psoriatic plaques treated with Taclonex alone.
This study is a prospective, non-randomized, multicenter, single-arm, clinical study to evaluate the performance, safety and efficacy of the GORE® VIAFORT Vascular Stent for treatment of symptomatic iliofemoral venous obstruction.
This study is a prospective, multicenter, non-randomized, single-arm study to evaluate the performance, safety, and efficacy of the GORE® VIAFORT Vascular Stent for treatment of symptomatic inferior vena cava obstruction with or without combined iliofemoral obstruction in adult patients.