View clinical trials related to Healthy Volunteers.
Filter by:This study is a single-center, double-blind, randomized, placebo-controlled, single-ascending dose (SAD) and multiple-ascending dose (MAD) study that will evaluate the safety, tolerability and pharmacokinetics (PK) of RO6889678 and the combination of RO6889678 with Ritonavir (RTV) following oral administration in healthy volunteers. The effect of food on the PK of RO6889678 and the effect of multiple dosing of RO6889678 and the combination of RO6889678 with RTV on the PK of a single oral microdose of midazolam will be evaluated. Healthy participants will be screened up to 28 days before randomization and sequentially enrolled into SAD and MAD unboosted and RTV-boosted cohorts, then randomly assigned to RO6889678 or matching placebo. In RTV-boosted cohorts participants will take RO6889678 in combination with RTV. To explore the effect of food on RO6889678 PK, a cohort of volunteers will participate in a two-period food effect sub-study. Participants enrolled in the MAD cohorts will be given an oral microdose of midazolam before and after the repeat treatment with RO6889678 to evaluate the drug-drug interaction potential of RO6889678.
To non-invasively image myocardial accumulation of ultrasmall superparamagnetic particles of iron oxide (USPIOs) by an increase in R2* values (compared to controls) within the myocardium of patients with: i. cardiac transplantation ii. acute myocarditis iii. suspected cardiac sarcoidosis
The primary objective of the study is to estimate the effects of different strong enzyme (CYP3A4) inhibitors, itraconazole, diltiazem, or verapamil on the single dose pharmacokinetics of PF-00489791 in healthy volunteers. The study will enroll approximately 18 subjects that are randomized to 1 of 3 treatment groups. The study is also intended to determine the safety and tolerability of single-dose PF- 00489791 when it is administered with steady-state itraconazole, diltiazem, or verapamil.
This study evaluated four test formulations of a glucose lowering drug (LY900014) administered by injection under the skin of the abdomen. The study was conducted in healthy people to investigate how the human body handles LY900014 and the effect of LY900014 on blood sugar levels. Side effects and tolerability were documented. The study was to be conducted in two parts (Part A and Part B) to achieve its objectives. Each part of the study was to last for about 11 to 12 weeks, including screening and follow up. Screening was required within 28 days prior to entering into either study Part A or Part B. Part B was not executed because no suitable formulation was identified.
Background: - By the time diseases of the retina are detected, serious damage has often already been done. Researchers want to find better ways of viewing the retina. One way called adaptive optics may help detect problems earlier. Objectives: - To study if adaptive optics can help find better ways to diagnose, treat, and manage retinal diseases. Eligibility: - People over age 12 with an eye disease. - Healthy volunteers over age 12. Design: - Participants will be screened with medical history and eye exams. These may include dilating pupils and taking pictures of the eyes. - Participants will have 1 or more study visits. They will have: - Medical and eye history. - Questions about their medications. - Eye exam including pupil dilation. - Adaptive optics imaging. After dilation, participants sit still while looking into an adaptive optics instrument. They look at specific places and images are taken of their retina. - They may also have: - More images. - Perimetry. Participants look into a lens and press a button when they see a light. - Color vision tests. - Electroretinogram. Participants will get numbing eye drops and special contact lenses. A small metal electrode will be put on their forehead. They will look at flashing lights and try not to blink.
Normal body iron store value in overweight subjects is currently not described in literature. The comparison of this value with body iron levels in patients suffering from dysmetabolic iron overload syndrome (DIOS) could allow to quantify iron overload in this condition. The purpose of the study is to determine iron levels in healthy overweight volunteers, and to compare them to DIOS patients treated with phlebotomy.
The first purpose of this study is to evaluate the effect of itraconazole (and possibly diltiazem) on the amount of LY2623091 in the blood stream and how long the body takes to get rid of it. The second purpose of the study is to evaluate the effect of LY2623091 on the amount of simvastatin (and possibly tadalafil) in the blood stream and how long the body takes to get rid of it. The safety and tolerability of LY2623091 when given with itraconazole, simvastatin and diltiazem or tadalafil will be evaluated. There will be three groups of participants in this study. Results from Groups 1 and 2 will be analyzed during the study to determine whether to enroll participants in Group 3 or 4. The study is expected to last up to 40 days from the first dose to follow-up (inclusive). Screening may occur up to 28 days prior to enrollment.
This study is an open-label, multi-center, single-dose, parallel group study to determine the pharmacokinetics, safety, and tolerability of cobimetinib administered at 10 mg to fasted male and female adult subjects with varying degrees of hepatic function. The study will be conducted based on the Child-Pugh classification of hepatic impairment. The anticipated duration of the study is 7.5 weeks. The target sample sizes are: 18 volunteers with varying degrees of hepatic function and up to 12 healthy control volunteers.
This study sought to verify that the in vitro quality (functional assays) of platelets collected on the Trima Accel system, Version 6.4, diluted in InterSol Solution, and stored for 1, 5, and 7 days meet FDA requirements.
The study will explore how allergy symptoms experienced during the grass pollen season compare to symptoms experienced in the Environmental Exposure Chamber (EEC). There are 2 treatments in this study. Both treatments are injected under the skin. Allergovit® Grasses works by helping the body's immune system get used to grass-pollen before the grass pollen season begins which may lead to decreased sensitivity and reduced allergy symptoms during the grass season. Placebo treatment does not contain grass pollen mixture, and is not expected to reduce allergic symptoms overtime.