View clinical trials related to Healthy Volunteers.
Filter by:The regulation of the cardiovascular respiratory system after changing environmental conditions or changes in work rates are essential for cognitive as well as physical functioning. For decades, it is known that high level of headward acceleration (+Gz) impairs cardiovascular function that may cause loss of consciousness. Some "anti-g" maneuvers, such as muscle contraction of the lower extremities and buttocks or intermittent exhalation on exertion (i.e., exhalation against a closed airway) have been proved to increase tolerance to high +Gz. Main objective of this experiment is to investigate the effects of anti-g maneuvers on cardiovascular and respiratory tolerance to the push-pull-effect. Cardiovascular and respiratory functions will be evaluated with the following parameters: heart rate, stroke volume, cardiac output, blood pressure, oxygen uptake, carbon dioxide output, ventilation, breathing frequency, body core temperature. Electromyography (EMG) will not be a judgment criteria but will be used to check the quality of 'muscle contraction' anti-g maneuver. The main hypothesis is that anti-g maneuvers will increase cardiovascular and respiratory tolerance to the push-pull effect, especially when they are combined.
The main objective of this work is to validate the dynamometer LABIN in comparison with the technique of gold-standard reference JAMAR, in a healthy population. The infringement of the prehension is frequent and impacts on the social and professional quality of life of the patients. There are numerous instruments measuring the strength of prehension. The JAMAR is a mechanical, hydraulic dynamometer, exploring in kilograms the maximal strength of the prehension. It is at present Gold Standard for the measure of the strength of prehension. There is for the moment no electronic known instrument exploring the endurance of the strength of prehension during an effort of tightening. This parameter would indeed be interesting for the exploration in geriatrics and in the neuromuscular pathologies. This study justifies itself by the fact that the dynamometer LABIN should allow the evaluation of the muscular endurance of the strength of hand as complement of the peak of strength
AC0058TA is a small molecule compound that potently, selectively and irreversibly inhibits Bruton's tyrosine kinase (BTK) phosphorylation and downstream signals, resulting in inhibition of inflammatory cytokine production in monocytes and inhibition of lymphocyte activation (predominantly B-cell activation) in the preclinical studies. The nonclinical program has demonstrated that AC0058TA has the potential to interfere with signaling functions mediated by tyrosine kinases and may be useful for controlling excessive or aberrant T- and B-cell activation in autoimmune diseases. As an investigational targeted therapy for RA and SLE, AC0058TA is expected to address the unmet need of this patient population, for whom there are currently no effected therapies and there is a great unmet medical need, AC0058TA may inhibit the key pathway which involves the disease process.
This trial will consist of three parts: the first two parts will enroll healthy female volunteers into a single ascending dose (SAD) and multiple ascending dose (MAD) treatment groups. The SAD treatment group is comprised of at least 3 cohorts where subjects will be randomized to a single dose of either PTI-428 or placebo and will be followed for 7 days post dose. A total of 24 subjects are anticipated to participate in this part of the study. Following the conclusion of the respective SAD level dose groups and after sufficient review of study data and approval by the SRC, a second set of healthy adult female subjects will participate in an assigned MAD treatment group. The MAD treatment group is comprised of 3 cohorts where subjects will be randomized to either PTI-428 or placebo and will be followed for a total of 14 days. The SRC will convene after the completion of each cohort to evaluate safety, PK and other relevant data. The SRC will determine whether to proceed to the next planned dose level, to reduce the dose, or to stop the study. The next cohort may commence only after written SRC approval. A total of 24 subjects are anticipated to participate in this part of the study. Following completion of the SAD and MAD, 40 female healthy volunteers will participate in two treatment periods of the DDI study component: Treatment period A will consist of once daily oral contraceptive (OC) for 28-days (21-day hormonal active + 7 days off). Treatment period B will randomize subjects to PTI-428 or placebo in combination with once daily OC for 28 days (21-day hormonal active and PTI-428 or placebo + 7 days off). Following completion of the subjects' second treatment period, they will be followed for 7-days after their last dose.
The project is designed to document in college undergraduates the relationships among sleep/wake timing and duration, use of mobile phones and other electronic devices, food timing and content, self-reported mood and physiological measures.
The purpose of this study is to evaluate the effects of a common over-the-counter medication, omeprazole, on the normal gut bacteria and inflammation in the body in healthy older adults.
Bipolar disorder is a chronic and frequent mood pathology, that impacts on emotional and socio-professional life of sick subjects, and also increase mortality by suicide. Suicide is considered as a bipolar disorder result. The main goal of this study is the endophenotype characterization from a clinical and cognitive point of view, of a bipolar spectrum's disorder present in a family, and then highlight a mutation of one of the genes involved is this disorder.
This clinical trial is about a new technology, named HEMOPTIC. It enables to mesure time of blood coagulation for monitoring of patients under Vitamin K antagonist (VKA). This device was created as an alternative to blood sample, that have to be done in a medical laboratory. The main goal is to evaluate the accuracy of the International Normalized Ratio (INR) measurement of this new portable device for diagnostic in vitro, among healthy patients and patients under anti-vitamin K treatment.
The goal is to identify neuro-physiological signatures at several levels of mental workload during the realisation of tasks, performed by all the subjects. In parallel, there will be a methodological work consisting to develop the classification algorithms, predictives of these levels of mental workload in real time, in purpose to implement a passive brain-machine interface in the best interest of operators that accomplish complex tasks. Mesures of electro-physiological activity will be recorded in order to approve states of charge in addition to behavioral performances.
Cardio-metabolic diseases are a leading cause of mortality worldwide. Over the years, therefore, there have been considerable efforts to identify strategies for prevention and management of risk factors. The diet, with its pleiotropic effects, is one of the most effective approaches to reduce the cardio-metabolic risk. In this context, the dietary fibers have been extensively studied and the available evidence supports the beneficial effects of its consumption. However, worldwide the average fiber consumption is still less than the recommended daily dose. For this reason, the availability of functional foods, such as additional sources of fiber in the diet, may facilitate the attainment of fiber recommended.