136 Clinical Trials for Various Conditions
Life in space is completely void of physical and environmental stress. It is well known that living things need regular physical stress (e.g. exercise) to remain strong, functional and healthy. More and more research is showing that regular environmental stress, for example heat and hypoxia, can further improve physical health. Astronauts aboard the international space station (ISS) exercise for 1-2 hours every day to avoid physical deconditioning that would otherwise cause them to age rapidly in space. Although physical exercise is very effective in remedying this deconditioning, today's astronauts still have physiological changes that indicate accelerated aging. This is a cause for concern given NASA's priority to travel to mars within the next decade; a mission that will require at least double the duration in space for our astronauts. The investigators think that the complete absence of environmental stress, i.e., heat, may be contributing to the accelerated aging that occurs during spaceflight. Our study will assess the health effects of adding heat stress to exercise that could be performed in space by astronauts. The goal is to inform best practice for astronauts to avoid physical deconditioning during long-duration spaceflight. This information will also be relevant to life on earth as spaceflight is a model of inactivity here on earth. Therefore, the potential benefits of adding heat stress will likely translate to life in space and on earth.
The aim of this study was to determine whether grape seed extract (GSE) supplementation could reduce the blood pressure (BP) in response to static exercise and post exercise muscular ischemia (PEMI) in normotensive young adults. In 12 healthy subjects (7 male and 5 female, 24.6±3.4 yr), we compared acute effect of both GSE (600 mg) and placebo (PL: 600 mg) on changes from rest in systolic BP (SBP), diastolic BP (DBP), mean arterial pressure (MAP), heart rate (HR), stroke volume (SV), cardiac output (CO), and total peripheral resistance (TPR) during static exercise (SE) and PEMI. Subjects completed 2 min of SE at 30% of maximal voluntary contraction (MVC) followed by 2 min of PEMI.
The purpose of this study is to investigate the safety of multiple oral doses of Lu AG06474, how well the doses are tolerated, and what the body does to the drug after administering it to healthy young participants. This study also aims to compare how the body absorbs and uses Lu AG06474 when it is given in capsule form versus when it is given as an oral solution.
Purpose: To determine whether 3-day consecutive exposures to levels of fine particulate matter (PM2.5) that are close to the current 24-hr national standard will cause changes in inflammatory and cardiopulmonary endpoints in healthy young individuals. Participants: 20 healthy males and females aged 18-35 years. Procedures (methods): Subjects will be randomly exposed to three consecutive days of filtered air (4 hr/day) and three consecutive days of PM2.5 (approximately 35 µg/m3; 4 hr/day) in an exposure chamber. Blood collection for inflammatory factors such as C-reactive protein (CRP), clotting factors; heart rate variability (HRV); spirometry; and a symptom questionnaire will be conducted before and after each exposure.
This Phase 1 trial is an open-label trial to evaluate the safety, tolerability and immunogenicity of a single dose (10\^7.5 PFU) of intranasal BLB-201 (a recombinant parainfluenza virus type 5) administered as a single dose in 15 healthy young adults ages 18-59 years, and 15 older adults ages 60-75 years.
The purpose of this study is to investigate the safety and tolerability of Lu AG06474 and what the body does to Lu AG06474 after swallowing single doses of the drug.
This will be a double masked, randomized, placebo controlled, single and multiple oral dose study conducted in 3 parts. The safety and tolerability of single and multiple ascending oral doses of QA102 in healthy young and older adult subjects will be evaluated. The study will also characterize the pharmacokinetic (PK) profile of QA102 in plasma and urine after single and multiple oral doses of QA102. Besides, the metabolite profile of QA102 will also be characterized. Part 1 will comprise a single dose, sequential cohort design. Part 2 will comprise a multiple dose, sequential cohort study. Part 3 will comprise a multiple dose, single cohort study in older subjects.
The purpose of this study is to investigate the safety and tolerability of Lu AG06479 and what the body does to Lu AG06479 after swallowing single doses of the drug.
The purpose of this study is to determine the effects of antibacterial mouthwash on muscle speed and power in healthy young men and women. We have previously demonstrated that drinking beetroot juice, a source of dietary nitrate and therefore nitric oxide, increases muscle function in this population. Antibacterial mouthwash has been shown to interfere with the conversion of dietary nitrate to nitric oxide. We therefore hypothesize that it will diminish nitric oxide bioavailability and inhibit muscle contractility.
The purpose of this research study is to determine if remote limb ischemic conditioning (RLIC) can enhance learning of a motor (balance) and an ecologically valid, complex cognitive-motor (driving) task, and increase skeletal muscle strength in neurologically-intact young adults.
Exogenous ketone supplements in the form of beta-hydroxybutyrate can be utilized as an alternate energy source (in place of glucose) for all cells except red blood cells. Exogenous ketone administration has been shown to be beneficial in terms of reducing oxidative stress, improving neuronal energy supplies, and maintaining normal blood glucose levels. The purpose of this study is to determine the effects and safety of supplementing with exogenous ketones for 6-weeks in healthy college-aged males and females. The results of this proposed study will determine whether exogenous ketone supplementation can be useful in promoting better body composition, energy levels, and blood cholesterol, glucose, and insulin levels.
Purpose: A growing body of epidemiological data suggests an increased risk of cardiovascular events associated with air pollution. One of the common air pollutants, ozone, has been shown to induce oxidative stress and inflammation in the cardiovascular and respiratory systems. This proposed study is to examine the efficacy of fish oil and olive oil in modulating cardiovascular and pulmonary functions after ozone exposure. The objective is to understand the mechanistic basis for the health effects of ozone relative to those air pollutants. Treatment groups will include forty healthy young adults who will be given dietary supplementation of fish oil or olive oil. A control group will consist of 20 healthy volunteers who will receive no supplements. After 4 weeks, subjects will be exposed to clean air for 2 hours on the first day, then ozone for 2 hours on the second day. Cardiac rhythm, pulmonary function, vascular responses, endothelial function, and markers of coagulation and airway inflammation pre- and post- ozone exposure will be measured. This study is designed to build on the previous nutritional supplement interventional studies (UNC IRB # 07-0190 and UNC IRB # 11-1807), in order to understand the mechanism of action of particulate pollutants in comparison to that of ozone, a known oxidant air contaminant. Participants: A total of sixty healthy 18-35 year-old male and female subjects will be involved in the study. Procedures (methods): Forty healthy young adults will receive dietary supplementation consisting of fish oil or olive oil for 4 weeks. The control group includes 20 healthy volunteers who will receive no supplements in the study. After 4 weeks of supplementation or control regiment, each subject will be exposed to clean air for 2 hours on the first day, then ozone for 2 hours on the second day.
Purpose: To determine whether exposure to levels of fine particles that are close to the current standard will cause cardiovascular changes in healthy individuals.
This study will investigate the effect of multiple doses of the strong P450 enzyme inhibitor itraconazole on the pharmacokinetics of Lu AF35700 in healthy subjects.
This is a randomized, double-blind (Investigator and subject-blinded) placebo-controlled, multiple, ascending-dose study to evaluate the safety, tolerability, and pharmacokinetic profile of BPN14770 in healthy young and elderly male and female subjects and to provide a preliminary assessment of the cognitive effects of BPN14770 in healthy elderly subjects.
Fruits and vegetables are an important source of many different phytochemicals that may affect health and accurate dietary assessement tools to quantitate dietary intake are essential. This study will evaluate the correlation of dietary carotenoid intake estimated from two common and one novel food frequency questionnaire (FFQ) with estimated carotenoid intake from 3 day diet records as well as measured blood and skin concentrations of carotenoids. This study will be conducted in healthy adults. These tools may be effective in estimating the level of these compounds in an average diet.
NGP 555 is a small molecule preventative therapy aimed at reducing Alzheimer's disease amyloid buildup by targeting Abeta 42 production.
This study will investigate the safety and pharmacokinetics (PK) of a single dose of GSK2256294 in healthy young and elderly subjects to explore the effects of food, gender and age on drug exposure. The biliary metabolites in healthy young males will be investigated using the Entero-test after a single oral dose of GSK2256294. This study will be conducted in two cohorts (Cohort 1 and Cohort 2). Cohort 1 is open label in order to characterise the PK profile of GSK2256294 in healthy young males and also to investigate the biliary metabolites of GSK2256294. Cohort 2 uses a crossover design to allow comparison of the PK parameters of GSK2256294 between in the fed and fasted state within subject and also to compare the PK parameters of GSK2256294 between male and female subjects. A washout period of a minimum of 2 weeks has been chosen to allow and adequate washout of GSK2256294.
The Y-balance test is a lower extremity, dynamic test performed in single limb stance that measures a person's ability to reach in 3 directions. The test is typically conducted in barefoot. The purpose of this study is to assess the impact of footwear on Y-Balance test scores. The investigators hypothesize that by improving alignment and augmenting muscle mechanics, sandals with medial arch support may improve Y-Balance scores.
The purpose of this study is to evaluate the effect of three doses of the probiotic B. subtilis (Bacillus subtilis R0179) delivered in capsules on gastrointestinal and general wellness in healthy young adults, survival through the gastrointestinal tract and impact on intestinal microbes.
This study is looking at a new vaccine that might prevent meningococcal disease, and will study the immune response elicited by this vaccine when given to healthy young adults. The study will also look at the safety of the new vaccine as well as how it is tolerated.
Amyloid is an abnormal chemical found in the brain of patients with Alzheimer's Disease (AD). The study drug helps produce pictures of amyloid in the brain. The purpose of this study is to determine how well the study drug performs in young healthy subjects.
To evaluate the effects of a high-calorie high-fat meal on the extent and rate of absorption of CHF 5074 after single oral administration in young healthy male volunteers.
This is a double-blind, placebo controlled, safety and immunogenicity study of GelVac™ nasal powder H5N1 influenza vaccine. Healthy male and female subjects between 18 and 49 years of age who are eligible for study participation will be enrolled in the trial. It is expected that 10 subjects will be screened to obtain 7 subjects who will be eligible for study participation. The primary objective is to determine the frequency and severity of local and systemic adverse events of vaccine. The secondary objective is to assess the immunogenicity of the vaccine based on geometric mean titers (GMT) of serum HAI, serum neutralizing, and nasal wash IgA antibodies.
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of multiple oral doses of CHF5074 in young healthy male volunteers.
The purpose of this study is to evaluate the safety and tolerability of single oral doses of CHF 5074 in young healthy male volunteers.
The purposes of this study are to: * Determine the effect of the study drug on sperm and semen of healthy young male subjects. * Determine the effect of age on the amount of study drug in the blood of healthy subjects * Learn about the safety of the study drug. * Learn how subjects tolerate the study drug.
RATIONALE: Exercise may change the risk of developing breast cancer. It is not yet known whether low-intensity exercise or high-intensity exercise is more effective in lowering the risk of breast cancer. PURPOSE: This randomized clinical trial is studying how well exercise programs work in healthy young women at increased risk of developing breast cancer.
The purpose of this study is to assess the safety and tolerability of ascending single oral doses of HTC-867 in healthy young and elderly subjects. This study will also evaluate the way the drug enters and leaves the blood and tissues over time and how the drug acts on and in the body in a fasted and fed state.
The study will investigate how well multiple doses of PF-02413873 are tolerated by healthy young women, how the body handles multiple doses of PF-02413873 and which effect PF-02413873 has on sex hormones in healthy young women