View clinical trials related to Healthy Volunteers.
Filter by:This randomized, double-blind, placebo-controlled, ascending-dose, parallel-group study will evaluate the pharmacodynamic effects, pharmacokinetics, safety, and tolerability of one week of RG7625 dosing in healthy male and female volunteers. Each participant will receive a single dose of RG7625 or placebo followed by one week of dosing with the same treatment. Each participant will also receive intradermal administration of 4 recall antigens at Screening and on Day 7 of treatment to assess study drug effects on delayed-type hypersensitivity (DTH).
To understand the cardiovascular reactions of the human body to changing conditions of gravity is an important aim of space science. In this context, cardiac output (CO) is a key value to estimate the human cardiovascular system. The main objective of this experiment is to determine the effects of parabolic flight on intravascular volume, and how these changes modulate the complex haemodynamics induced by the parabolas.
The purpose of this study is to evaluate the concurrent validity between the Brain Performance Test (BPT) subtests and corresponding conventional in-person neuropsychological assessments (NP).
This study is a single-centre, open-label, dose escalation , safety, tolerability and pharmacokinetics (PK) study in healthy male and female subjects. The study include a screening day and a 5-day dosing period. Subjects will be enrolled in sequential cohorts and each cohort will include 8 subjects. there will be 24 subjects total included in the study. The duration of the clinical part of the study will be approximately 2 months.
The purpose of this study is to determine the relative bioavailability of alogliptin 12.5 milligram (mg) and immediate-release metformin 1000 mg when administered as individual tablets and as a fixed-dose combination (FDC) product.
Background: - People with dystonia have muscle contractions they can t control. These cause slow, repeated motions or abnormal postures. People with dystonia have abnormalities in certain parts of the brain. Researchers want to study the activity of two different brain areas in people with writer s cramp and cervical dystonia. Objective: - To compare brain activity in people with dystonia to that in healthy people. Eligibility: - Right-handed people ages of 18-65 with cervical dystonia or writer s cramp. - Healthy volunteers the same ages. Design: - Participants will be screened with a physical exam. They will answer questions about being right- or left-handed. - At study visit 1, participants will:<TAB> - Have a neurological exam. - Answer questions about how their disease impacts their daily activities. - Have a structural magnetic resonance imaging (MRI) scan. Participants will lie on a table that can slide <TAB>in and out of a metal cylinder. This is surrounded by a strong magnetic field. - Do 2 simple computer tasks. - At study visit 2: - Participants will have transcranial magnetic stimulations (TMS) at 2 places on the head. Two wire coils will be held on the scalp. A brief electrical current creates a magnetic pulse that affects brain activity. Muscles of the face, arm, or leg might twitch. Participants may have to tense certain muscles or do simple tasks during TMS. They may be asked to rate any discomfort caused by TMS. - Muscle activity in the right hand will be recorded by electrodes stuck to the skin of that hand.
Background: - Magnetic resonance imaging (MRI) has been used for decades to help diagnose and monitor neurological disorders like multiple sclerosis (MS). Researchers want to improve how MRI pictures are taken. They also want to learn more about using newer MRIs with stronger magnets to get better pictures than standard MRIs provide. Objectives: - To collect data that will help researchers better understand MS and related diseases. Eligibility: - Adults 18 and older with MS or MRI findings that appear similar to MS, or with other neurological diseases that may look or act like MS. - Healthy adult volunteers. Design: - Participants will be screened with a review of their medical records. - Participants will have a baseline visit. It will include a physical exam, medical history, and neurological exam. They may have blood tests. - The study will last indefinitely. - Participants may have MRIs. Some MRIs may include a contrast dye. For this, a needle will be used to guide a thin plastic tube into an arm vein. - Participants may have up to 2 lumbar punctures per year. Skin will be numbed and a needle inserted between back bones will remove fluid. - Participants may give saliva samples and have an eye exam. - Participants may have evoked potential tests. These measure how the nervous system responds to different types of stimulation. Participants may sit in front of a TV and watch pictures on the screen. Or they may wear earphones that make a clicking noise or static. Or they may get a small electrical shock that may tingle and cause a hand or foot twitch. - Participants may have tests of strength, spasticity, sensations, balance, and/or walking.
This study will assess the bioavailability, safety and tolerability following administration of 80 mg single oral doses of 4 febuxostat extended release (XR) formulations.
The purpose of this study was to determine the rate and extent of absorption of Ibuprofen suspension formulations.
To assess the single dose pharmacokinetics (PK) of celecoxib in healthy subjects when administered alone and following multiple daily doses of AKB-6548.