Clinical Research Directory

Examining the Impact of Exercise Training on Vascular Dysfunction in Individuals With Mental Health Disorders - Study 3

The purpose of this research study is to examine the effect of various forms of exercise training on blood vessel function in healthy individuals as well as individuals with mental health disorders (posttraumatic stress disorder (PTSD) and/or generalized anxiety disorder (GAD)).

A Contrast Medium Sparing Strategy Using Automated CO2 Injection During PVI for Prevention of Major Adverse Kidney Events (MAKE)

The primary objective of the trial is to evaluate if an iodinated contrast medium sparing strategy using automated Carbon Dioxide (CO2) Injection prevents Major Adverse Kidney Events up to 90 days (MAKE90) in patients at moderately elevated risk for contrast-associated acute kidney injury (CA-AKI) undergoing infrainguinal peripheral vascular interventions (PVI).

MRI Guided Management of Occlusive Peripheral Arterial Disease

The goal of this observational study is to identify which plaque lesions in patients with peripheral arterial disease are impenetrable and to determine which devices minimize vessel wall injury. Patients undergoing intervention will have an MRI scan prior to their planned percutaneous vascular intervention to assess the plaque and predict procedural difficulty. Patients undergoing lower limb amputation due to peripheral arterial disease will have their limbs included into a second arm of the study The limb will undergo an MRI scan to assess the plaque. The investigator will then test two different devices and assess the effects of these devices on the vessel wall.

Drug-Eluting Registry: Real-World Treatment of Lesions in the Peripheral Vasculature

The ELEGANCE Registry's objective is to collect Real-World Data (RWD), including populations previously not represented in Peripheral Vascular Disease (PVD) trials, health economics data, and to support the safe use of commercially available Boston Scientific Corporation (BSC) drug-eluting devices for the treatment of lesions located in the peripheral vasculature.

Examining the Impact of Exercise Training on Vascular Dysfunction in Individuals With Mental Health Disorders - Study 1

The purpose of this research study is to examine the role oxidants, substances produced in the blood that can damage blood vessel function, may play in blood vessel function in healthy individuals as well as individuals with mental health disorders (posttraumatic stress disorder (PTSD) and/or generalized anxiety disorder (GAD)).

Examining the Impact of Exercise Training on Vascular Dysfunction in Individuals With Mental Health Disorders - Study 2

The purpose of this research study is to examine the effect of various forms of exercise training on blood vessel function in healthy individuals as well as individuals with mental health disorders (posttraumatic stress disorder (PTSD) and/or generalized anxiety disorder (GAD)).

Virtual Diabetes Group Visits Across Health Systems

The purpose of this project is to evaluate the effectiveness of a virtual diabetes group visits on patients with type 2 diabetes mellitus (T2DM).

Impact of Nrf2 Activation on Macrovascular, Microvascular & Leg Function & Walking Capacity in Peripheral Artery Disease

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.

Safety, Performance and Usability of BALT Medical Devices: The EVIDENCE Post Marketing Clinical Follow-up Platform

BALT has designed an electronic platform to continue collecting clinical data as part of the post-marketing clinical follow-up of its devices. This platform is purely exploratory, without hierarchical order of the objectives and associated outcomes.

Randomized Controlled Trial of Alert-Based Computerized Decision Support for Patients With Peripheral Artery Disease Not Prescribed Lipid-Lowering Therapy

This single-center, 400-patient, randomized controlled trial assesses the impact of a patient- and provider-facing EPIC Best Practice Advisory (BPA; alert-based computerized decision support tool) to increase guideline-directed utilization of statin and statin-alternative oral LDL-C lowering therapies in patients with PAD who are not being prescribed LDL-C-lowering therapy.

The Mechanical Characterisation of Human Saphenous and Popliteal Vein

Non-interventional study aiming to ascertain the mechanical properties of human saphenous and popliteal vein tissue.

The Effects of ATLAS Therapy on Nitric Oxide Bioavailability in Patients With Intermittent Claudication

This study will focus on people with claudication from peripheral arterial disease. The investigators are researching whether a multicomponent therapeutic can increase the production of Nitric Oxide in the blood and whether that leads to an improvement in pain free walking distance and overall physical activity.

Post-Market Registry of the GORE® VIABAHN® VBX Balloon Expandable Endoprosthesis Implanted in Peripheral Vessels

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

Heat Therapy and Peripheral Artery Disease

The purpose of the study is to assess the efficacy of a novel 8 week heat therapy intervention in intermittent claudication compared to usual care controls. Participants will be enrolled on a wait-list control randomised trial testing physiological, mechanistic, and health related outcome measures.

Single Arm, Prospective, Open-label, Multi-center Clinical Investigation for the Demax Guide Wire

The objectives of this study are to confirm the safety and performance of the Guide Wire when used in patients with peripheral vascular or coronary vascular disease for diagnostic or treatment procedures and will be the pivotal trial for this device. This study intends to evaluate the Guide Wire in its ability to successfully deploy an intended diagnostic or therapeutic catheter according to the IFU without any device related deficiencies, time to reach a specified position, and total number of insertion attempts to reach a primary performance endpoint.

Fisetin to Reduce Senescence and Mobility Impairment in PAD

The investigators propose a pilot randomized trial to gather preliminary data to test the hypothesis that Fisetin will reduce abundance of senescent cells in blood, skeletal muscle, and both subcutaneous and inter muscular adipose tissue and improve 6-minute walk distance in 34 people with peripheral artery disease (PAD). the investigators will determine whether greater declines in abundance of cells with senescent markers are associated with greater improvement in 6-minute walk distance in people with peripheral artery disease. In exploratory analyses, the investigators will assess whether Fisetin reduces interleukin-6 (IL-6) and novel senescent markers in adipose tissue, muscle, and/or blood.

Vascular Regenerative Cell Exhaustion in Adults with Peripheral Artery Disease (PAD-VRCE)

PAD-VRCE is an observational, cross-sectional, two arm study aimed at determining if the presence of peripheral artery disease (PAD) can influence the number of circulating regenerative cells in blood. From peripheral blood samples, circulating progenitor cell content will be assessed via flow cytometry and compared between individuals with PAD and individuals without PAD. Ultimately, this study plans to evaluate the relationship between PAD, vascular regenerative cell exhaustion and overall cardiovascular health.

SMART Exercise for PAD

Supervised exercise therapy (SET), consisting of treadmill exercise conducted three times weekly at a center while supervised by healthcare personnel, is first line therapy for people disabled by lower extremity peripheral artery disease (PAD). However, travelling three times/week to a center for SET is burdensome. Compared to SET, home-based exercise is more accessible and less burdensome. Yet, evidence-based guidelines recommend SET over home-based exercise for PAD. Walking exercise is first line therapy to improve walking distance for PAD, but it does not eliminate ischemic leg symptoms in most people with PAD. The investigators' work and that of others showed that nitrate-rich beetroot juice, which increases plasma nitrite, limb perfusion, and skeletal muscle function, significantly improved exercise tolerance and reduced non-response to exercise in people with and without PAD. The investigators will use a 2 x 2 factorial design to address two major barriers to achieving benefits from exercise therapy for PAD: First, guideline recommendations for supervised exercise therapy (SET) as first line therapy for PAD. Second, the inability of exercise therapy to eliminate PAD-related disability in most people with PAD. Participants will be randomized to one of four groups for 12 weeks: Supervised treadmill exercise + nitrate rich beetroot juice; supervised treadmill exercise + placebo, home-based walking exercise + nitrate rich beetroot juice, home-based walking exercise + placebo.

Investigation of the Perfusion of Gluteal Muscle in Patients With Intermittent Gluteal Claudication by Non-invasive MSOT

The objective of the proposed study is to define independent parameters for the diagnostic assessment of the perfusion situation of the gluteal muscle based on multispectral optoacoustic tomography (MSOT) in patients with gluteal claudication in Fontaine stage II (intermittent claudication) pre and post-intervention.