View clinical trials related to Healthy Volunteers.
Filter by:To compare pharmacokinetics (PK) of AVP-786 (deuterated [d6] dextromethorphan hydrobromide [d6-DM]/quinidine sulfate [Q]) to AVP-923 (dextromethorphan hydrobromide [DM]/Q) at steady state.
Phase I study to assess the safety, tolerability and pharmacokinetics of ascending single and multiple doses of the investigational medicinal product in healthy volunteers
Background: - Salivary glands in and around the mouth and throat make saliva. Salivary gland disorders can affect a person s quality of life. Studying people who have a disease that affects their salivary gland(s) may teach researchers about the disorders and their genetics. Objectives: - To study salivary gland diseases and disorders. To collect data and samples from people with salivary gland problems and their relatives. Eligibility: - People more than 4 years old who have or are suspected to have a disease involving salivary glands. - Their relatives more than 4 years old. - Healthy volunteers 18 years or older. Design: - Participants may be screened with: - Medical history - Physical exam - Blood and urine tests - General oral and dental history and exam - Saliva collection - Eye exam and test for dry eyes - Health questionnaires (adults) - Biopsy of some minor salivary glands. A small incision will be made on the inside of the lower lip and several tiny salivary glands will be removed. - Participants will have 2 3 visits. These may include: - Repeats of some screening tests - Ultrasounds of some glands. Researchers will put some gel on the face, then press on it with a smooth wand. - Adults may have other biopsies - A small catheter inserted into the opening of the parotid gland duct on the inside of the cheek. A saline solution (in a syringe) will fill the duct. - Swishing a saltwater solution in the mouth for 10 seconds and then spitting into a cup - Scrapings collected from teeth, tongue, and cheeks
The primary purpose of this study is to assess the single-dose bioavailability of AKB-6548 with ferrous sulfate relative to AKB-6548 in healthy volunteers.
The aim of this study is to compare how much of the study drug gets into the blood stream when it is given as a single oral dose and as an intravenous infusion (given directly into a vein via a small needle). The study will also provide information on how well the study drug is tolerated when given as a capsule in combination with giving it intravenously, and information on any changes in heart function. The study will last about 10 days. Screening is required within 28 days before study drug is given.
This study involves single and multiple doses of LY3202626 and will evaluate the effects of LY3202626 on the body. There will be 4 parts to this study. In Parts A and B, single increasing doses of LY3202626 will be given in capsule form. Part A will also include itraconazole given orally as a solution. Part A will last approximately 8-12 weeks. Part B will last approximately 5-6 weeks. In Parts C and D, participants will be dosed multiple days with the study drug. Part C will last approximately 11-14 weeks. Part D will last approximately 11-14 weeks and participants must have Alzheimer's Disease. Participants may only enroll in one part.
The imdazoline2 binding site (I2BS) is known to reside inside astrocytes. Changes in the numbers of I2BS in post mortem tissue has implicated them in a range of psychiatric conditions such as depression and addiction, along with neurodegenerative disorders such as Alzheimer's disease and Huntington's chorea. Preclinical studies have also demonstrated functional interactions with the opioid system, where I2BS ligands have been shown to affect tolerance to morphine and alleviate some of the morphine withdrawal syndrome in rats. Recently the I2BS and I2BS ligands have been shown to have some interesting analgesic effects in different models of pain and a novel I2BS ligand, CR4056, is currently undergoing Phase II clinical trials as a novel treatment for neuropathic pain and acute non- specific pain states. The location of I2BS on astrocytic glial cells and the possibility that they may in some way regulate glial fibrillary acidic protein have led to increased interest into the role of I2BS and I2BS ligands in conditions characterised by marked gliosis. The number of I2BS has been shown to increase in Alzheimer's disease post mortem, and it has also been suggested that I2BS may be a marker for the severity and malignancy of human glioblastomas. The lack of suitable imaging tools for the I2BS has meant that information regarding the number and distribution of I2BS in the brain has come from preclinical species and in vitro post-mortem studies. The recent development of [11C]BU99008 as a suitable PET ligand to quantify I2BS in vivo, enables the direct quantification of I2BS availability and regional distribution in the living human brain. In this study the investigators plan to utilise [11C]BU99008 to quantify the regional brain availability of I2BS in the human brain in vivo using PET.
A Study to assess, against a reference selumetinib capsule, if the drug levels of a variant of selumetinib capsule are comparable, and to assess how drug levels differed in another variant of Selumetinib in Healthy Male Volunteers.
Background: - Researchers are studying a topical (skin) cream that reduces pain. This is called an analgesic cream. They want to try a new test to better measure how well it works. Heat will be applied to the participants arms and they will judge the intensity of the temperatures. Researchers will compare the pain reduction from this cream to other pain relief treatments. Objective: - To better measure the effects of a pain-relieving (analgesic) cream. Eligibility: - Healthy volunteers ages 18 50. Design: - There will be 2 study sessions. - Session 1 will be about 1.5 hours. - Participants will be screened with physical exam and urine drug test. They will answer medical and psychological questions. - Participants will have sensory testing. - A moisturizer will be put on their arms. A heating device will be placed on their arms. It gives heat pulses of about 2 seconds each. Some are warm and some are very hot. Participants will say how strong each pulse is. They can move away if it gets painful. - Then the pain-relieving cream will be put on one arm. The moisturizer will be put on the other. Participants will get more pulses and rate them. They will also get pairs of pulses and compare them. - Some participants will return for session 2 for 1 hour. They will receive similar sensory testing as in session 1.
This study aims to evaluate the Zenalux IM1, an optical spectroscopy device with a pressure sensor. The pressure sensor is intended to overcome the inconsistencies attributable to variations in use of the device. This study will involve using the device on healthy volunteers. Three tissue parameters will be used to analyze the pressure effects in two ways: within- and across-subject variability. Measurements will be taken under the tongue and on the inside of the cheek. The device is noninvasive and is approved for preclinical use.