View clinical trials related to Healthy Volunteers.
Filter by:This randomized, double-blind, placebo-controlled study will assess the safety, tolerability and pharmacokinetics of RO5024048. Japanese and Caucasian healthy volunteers will be randomized to receive either single oral doses of RO5024048 or placebo. Follow-up is 7-10 days.
The purpose of this study is to examine the effect of buprenorphine on QT interval corrected for heart rate (QTc) in healthy subjects.
The primary objective of this study is: • To determine the effects of ketamine, which blocks the ion-channel gated by the NMDA receptor, on performance of cognitive tasks and the extent to which these effects can be reversed by the dopamine receptor antagonist, risperidone. The secondary objectives of this study are: - To establish whether patients with schizophrenia are able to reliably complete the biomarker test battery and to assess whether their responses are similar to healthy volunteers treated with ketamine. - To establish a multi-site recruitment and assessment capacity based on shared Standard Operating Procedures across three study centres.
This study is being performed to determine the bioavailability, or extent of absorption into the body, of a 10 mg amlodipine besylate orally disintegrating tablet (ODT) as compared to the bioavailability of a 10 mg amlodipine besylate (non-ODT) tablet.
This is a 4-week sequential drug interaction study to measure the effects of American ginseng on efavirenz pharmacokinetics using steady-state 24-hour Area Under the Curve (AUC) and Cmax as the primary comparison measures in healthy male volunteers. Efavirenz Cmin, T1/2, tmax, and clearance will also be assessed as secondary outcome measures. This study is a phase I, prospective, within-subject, fixed-order, two-period, multiple dose, open label, drug interaction study, to determine the stead-state plasma pharmacokinetic profile of efavirenz before and after concurrent treatment with American ginseng. The investigators hypothesis is that concurrent oral administration of American ginseng for up to 14 days will not significantly alter the steady-state plasma pharmacokinetic of efavirenz.
tDCS has been shown to be an effective treatment for depression. However, tDCS is a relatively new clinical tool and more needs to be understood about its use. This study hopes to further the field of knowledge by examining how tDCS should be optimally used. Application of tDCS in clinical trials of depression is typically to the prefrontal cortex, but in this project, tDCS application will be to the motor cortex as it provides a more ready measure of excitability. Excitability will be measured using Transcranial Magnetic Stimulation (TMS) to the motor cortex and electromyography (EMG) recordings from peripheral muscles stimulated. Using a cross-over three-arm design this study aims to investigate whether daily tDCS administered in increasing intensity across sessions leads to greater and lasting effects on brain excitability than keeping the intensity at a same dose across the days and whether the excitatory effect could be enhanced with D-cycloserine, a medication known to prolong the excitatory effects of a single session of tDCS. This in turn will inform on how to optimize tDCS for therapeutic applications, e.g treatment of depression. The study hypothesis is that 5 sessions of tDCS with a dose of D-cycloserine given on the Monday and Thursday sessions will result in more sustained effect on motor cortex excitability than 5 sessions of tDCS alone. The second hypothesis is that the gradational increases in tDCS intensity over 5 sessions will result in greater motor cortex excitability than 5 sessions of tDCS where intensity is kept constant across sessions.
The purpose of this study is to determine if tumor cells can be detected in the blood of patients diagnosed with a brain tumor.
This study will compare how the body treats 2 different forms of insulin lispro and how they affect blood sugar levels.
DCVax-001 is a recombinant protein vaccine designed to prevent and potentially treat human immunodeficiency virus (HIV) infection. The vaccine is composed of a fusion protein containing a human monoclonal antibody specific for the dendritic cell receptor, DEC-205 (CD205), and the HIV gag p24 protein. The vaccine is designed to target HIV antigens directly to endocytic pathways in dendritic cells (DCs) that allow for efficient processing and presentation of multiple HIV peptides on both MHC class I and II products, which will induce HIV-specific CD8+ and CD4+ T cells. This vaccine candidate must be combined with appropriate immunostimulants (adjuvants) to induce immunity to the antigen. In the proposed clinical trial we will use poly ICLC (Hiltonol) from Oncovir, Inc as the adjuvant.
This study is to evaluate the effect of food on the pharmacokinetics of YM150 in healthy make adult subjects.