18 Clinical Trials for Various Conditions
Background: - Researchers are interested in studying individuals who have known or suspected metabolic or genetic diseases that put them at a high risk for heart diseases or diseases of their blood vessels. To improve the results of the study, both affected and nonaffected individuals will be asked to provide blood and other samples and will undergo tests to evaluate heart and lung function. Nonaffected individuals will include relatives of affected individuals and healthy nonrelated volunteers. Objectives: - To study individuals who have or are at risk for cardiovascular diseases, as well as their unaffected relatives and healthy volunteers. Eligibility: - Individuals between 1 and 100 years of age. Participants may be healthy volunteers, individuals with cardiovascular diseases, or unaffected relatives of individuals with cardiovascular diseases. Design: * Participants will have some or all of the following tests, as directed by the study researchers: * Photography of the face and full body * Body measurements * Radiography, including chest or limb x-rays * Metabolic stress testing to study heart and muscle function * Echocardiography to study heart function * Magnetic resonance imaging (MRI) studies, including cardiovascular MRI, angiography, and contrast MRI, to study heart function and performance * Computed tomography (CT) angiogram to obtain images of the heart and lungs * Positron emission tomography (PET) imaging to study possible fat infiltration of the heart * Six-minute walk test to study heart, lung, and muscle function and performance * Vascular ultrasound to study blood vessel walls * Blood, tissue, and other specimens will be collected for research and testing, and will be taken either as part of the clinical study or during surgical procedures. * Follow-up studies may be performed under separate research protocols.
This study will evaluate how the cardiovascular system interacts with mechanical hearts to provide blood flow to the body during exercise. Two aims are proposed: 1) to determine the impact of a mechanical heart on exercise pressor reflexes in heart failure patients; and 2) to define the primary determinant(s) of exercise capacity in heart failure patients before and after device implantation.
This is an open-label, single center, trial that will enroll up to 25 participants with circulatory shock after cardiac surgery. Participants will be administered a topical sublingual nitroglycerin solution and assessed for changes microcirculatory blood flow using incident dark field microscopy.
The study aims to assess the effect of music on the heart resulting in a change in their exercise capacity among systolic heart failure patients undergoing Cardiopulmonary Exercise testing.
Despite the benefits of physical activity (PA) to prevent cardiovascular disease and other chronic diseases, few adult Latinas meet PA guidelines. Given the central role of churches within the Latino community and their commitment to the well-being of their members, they are ideal settings for health promotion. Evidence-based interventions (EBIs) for increasing PA and reducing obesity exist, but few PA interventions go to scale. Investigators propose to enhance Faith in Action with three organization-level strategies designed to increase program fit and effectiveness: 1) training church leaders in health promotion; 2) tailoring messaging to enhance fit between Faith in Action and each unique church environment; and 3) empowering community health workers (promotoras) to advocate for organizational change. Given the need to improve strategies to sustain health programs in community settings, investigators will test the influence of two additional sustainment strategies: 1) strengthening community collaborations and 2) providing technical support. Thirty-two churches will be randomly assigned to a Standard EBI group (Faith in Action as originally implemented), an Enhanced group (Standard intervention + organizational-level implementation strategies), or an Enhanced + Sustainment group (Enhanced implementation group + sustainment strategies). Investigators will test the proposed implementation strategies on organization-level change and individual behavior in diverse churches for a 12-month intervention and 6-month follow-up period. The proposed study aims to: 1) Test the short and long-term impacts of organization-level implementation strategies in 2 Enhanced conditions on organizational outcomes compared to the Standard EBI condition and 2) Examine individual behavior change among Latinas (N=677) in churches in the 2 Enhanced conditions compared to the Standard EBI condition. The study's primary hypothesis is that Latina's receiving the Enhanced interventions will increase their PA levels significantly more than those receiving the Standard Faith in Action intervention, and the improvements in PA will be sustained. If successful, findings from the current study will provide evidence of organizational-level strategies for uptake, sustainment, and implementation strategies for scale-up of PA interventions to increase PA and reduce chronic disease in churches across the US.
Study ROR-PH-302, ADVANCE CAPACITY, is designed to evaluate the effects of ralinepag therapy on exercise capacity as assessed by change in peak oxygen consumption (VO2) derived from cardiopulmonary exercise testing (CPET) after 28 weeks of treatment
Given the heightened cardiovascular disease (CVD) risk in post-menopausal women, studies are needed to explore novel, feasible methods for reducing risk in this population. Based on prior data, primarily in other populations, progressive resistance training is a promising candidate. This project will test the effectiveness of a practical, progressive resistance training regimen for lowering numerous CVD risk factors compared to both aerobic training and no exercise in post-menopausal women.
The objective of the CAPACITY-HFpEF study is to evaluate the safety and efficacy of IW-1973 compared with placebo when administered daily for approximately 12 weeks to patients with HFpEF. The study will evaluate the effect of oral IW-1973 on peak exercise capacity in patients with HFpEF, with or without permanent or persistent atrial fibrillation.
The purpose of this research study is to study the effect of fish oil and bicarbonate (baking soda) on exercise. In this study fish oil, bicarbonate or both will be compared to placebo to see if study participants increase exercise capacity.
Background: - Resveratrol is a compound found in the skin of red grapes. It is being tested to see if it can have positive effects on human health. Lab studies show that it may help lower blood sugar, improve heart and blood vessel health, and prevent cancer. Researchers want to test different dose levels of Resveratrol to see what kind of effects it has on older overweight people. It will be tested in healthy volunteers at least 50 years of age. Objectives: - To test the effects of different dose levels of Resveratrol on heart and blood vessel health. Eligibility: - Healthy overweight nonsmoking volunteers at least 50 years of age. Design: * This study will involve a screening visit and four study visits. Some of the study visits will involve overnight inpatient stays. * Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. They will be given a list of foods that they should avoid eating while on the study. * Participants will be separated into three groups. Two groups will take different dose levels of the study drug. The third group will take a placebo. * At the first study visit, participants will stay in the clinical center overnight for 2 days of tests. They will provide blood and urine samples and have body scans to measure fat and muscle mass. They will also have exercise tests. A muscle biopsy will also be performed. At this visit, they will receive their dose of the study drug. They will continue to take this dose for as long as they are on the study. * The second visit will be 16 weeks after the first one. It will take only 2 hours, and repeat most of the tests from the screening visit. * The third visit will be 16 weeks later. It will involve an overnight stay. Most of the tests from the second visit will be repeated. * The fourth and final visit will be 16 weeks later. It will involve an overnight stay. Most of the tests from the initial study visit (including the scans and the exercise tests) will be repeated.
Osteoarthritis of the knee is a degenerative joint disease that involves degradation of the joint. Symptoms include joint tenderness, pain, stiffness, locking, and occasionally an effusion. Over 40 million Americans also have cardiovascular disease in addition to their OA. Initiation and maintenance of even low-levels of physical activity is critical for management of cardiac risk. Patients with osteoarthritis have been shown to have poorer aerobic conditioning, lower daily physical activity levels and lower self-efficacy for exercise than non-OA cohorts. It has been established that there exists a consistent gradient across activity groups indicating greater longevity and reduced risk of CHD, CVD, and stroke, in more active individuals. Available research suggests the greatest gains in cardiovascular fitness occur in moving a sedentary individual to even low levels of physical activity, and 12 weeks is enough to demonstrate change in the risk profile of at-risk individuals. Finally, appropriate levels of aerobic and strength training have been shown to be beneficial in treatment of osteoarthritis of the knee. This study will evaluate the effectiveness of hylan G-F 20 (single injection preparation) in promoting greater levels of physical activity and fitness as measured by MET level compared to an exercise-only cohort; evaluating both the change in physical function as well as the cardiovascular risk profile. This is a randomized, single-blinded clinical trial comparing injection of the knee joint with Hylan GF-20 to sham procedure. Subjects will undergo a regular exercise program for 6 months following randomization.
The vast majority of individuals with heart failure do not participate in center based cardiac rehabilitation (CBCR). While steps to increase utilization of CBCR are important, many individuals will still not participate for a variety of reasons. This pilot randomized controlled trial is evaluating a home-based cardiac rehabilitation (HBCR) intervention delivered using a custom app and digital tools in patients with heart failure. After a brief roll-in period, participants are randomized to one of two groups: (1) control or (2) HBCR mobile health intervention. The intervention targets key health behaviors and includes traditional cardiac rehabilitation components. The study will assess the effect of the intervention on physical activity, quality of life, clinical events, and other outcomes.
The primary purpose of this study is to assess the effects of aging on markers of physical reserve and exercise-induced adaptations in resilience in older adults who completed a structured exercise program within the last 15 years (Parent trial: STRRIDE-PD; NCT00962962). This feasibility pilot study will enroll up to 8 participants to complete a 6-month aerobic exercise intervention.
It has been suggested that the best medicine should include four principles (4P) - Medicine should be personalized, predictive, preventative and participatory. Technology has provided the tools to collect data in ways not previously possible. Individuals can now collect information on their genome (including their genetic predisposition to tolerate medications and to respond to healthy lifestyle programs) that will modify their lifestyle and therapeutic choices. Beyond spot checks of vital signs and weight, individuals can now collect information on body composition, continuous monitoring of heart rate, blood pressure, and even blood sugar. Data on food consumption at a caloric, macronutrient and even micronutrient level can be collected. Standard medical histories and detailed physical examination findings and laboratory biomarkers can be correlated with this data. Collections of individual patient data will need to be managed through computer programs and smart phone applications that provide direct feedback about the influence of lifestyle on health, wellness and biomarkers. To this end, Metagenics is designing and is launching a smart phone application, Personal Lifestyle Engine (PLX), for individual use by patients and their healthcare providers. The statistical analysis of these data is the primary objective of this study.
The LIFE-HOUSE research project is designed to evaluate the impact of a personalized lifestyle intervention program on functional capacity as an approach to quantitating health, and its relationship to well understood disease risk determinants. LIFE-HOUSE will utilize an innovative Tent-Umbrella-Bucket design. Participants will gather under the Tent of an all-inclusive 'N of 1' Case Series providing a shelter of Functional Medicine interventions against the storm of chronic disease. Under this Tent are a collection of Umbrellas where participants with similar clinical challenges are evaluated as clinically defined groups with loose guidelines for the planned interventions. Finally, participants standing under these Umbrellas may step into specific Buckets that gather individuals with nearly identical clinical presentations into more formally described prescriptive randomized arms for intervention. Individuals will be offered the opportunity to participate in all Umbrellas and Buckets for which they qualify. They may accept or reject participation in any Umbrella or Bucket and yet remain eligible for participation in the overall Tent.
The purpose of this study is to examine the effect of acute ingestion of a concentrated beetroot juice supplement on vascular function and exercise capacity in patients with moderate to severe chronic kidney disease
The hypothesis of this proposal is that in subjects with Type II diabetes mellitus (T2D) and peripheral arterial disease (PAD) with intermittent claudication (IC), regular consumption of a high nitrate supplement which raises plasma nitrite, in conjunction with 12 weeks of supervised exercise training at the limb ischemic threshold (SET) will produce a greater clinical benefit (increases in claudication onset time \[COT\] and peak walking time \[PWT\] relative to a group with the same exercise training but supplemented with placebo .This study is essentially exploratory in nature and designed to provide us with information to adequately develop power and execute a larger study. We have previously seen benefits from nitrate supplementation on function in PAD.
The hypothesis of this proposal is that in subjects with PAD, regular consumption of a high nitrate supplement which raises plasma nitrite, in conjunction with 12 weeks of supervised exercise training at the limb ischemic threshold (SET) will produce a greater clinical benefit (increases in COT and PWT) than placebo plus supervised exercise at the limb ischemic threshold (PET).