7 Clinical Trials for Various Conditions
This study will examine the effects of doses of opioid/placebo and doses of alprazolam/placebo, alone and in combination. The primary outcomes are pharmacodynamic measures (subjective ratings of drug liking and other abuse-related effects; physiological outcomes) and pharmacokinetic outcomes (from blood samples) to determine the interaction effects of these compounds.
The metabotropic glutamate subtype five (mGluR5) receptor is a protein found in the brain and is the target for the excitatory chemical messenger glutimate. The purpose of this protocol is to measure mGluR5 receptors in the brain using positron emission tomography (PET) and a research drug called \[18F\]SP203.
The aim of this study is to study the effect of rifapentine on plasma concentrations of raltegravir.
Back pain affects the majority of the population at some time. Currently there are no published and scientifically accepted objective measures to support manual medicine diagnostic and treatment techniques for back pain. The purpose of this project is to collect and evaluate objective (pressure and motion) data from standard clinical diagnostic tests.
This study is a randomized, open-label, trial in healthy volunteers. Trial participants will be given a medical food product (combination of probiotics and prebiotics) called SBD111 or SBD121 for seven days and microbial abundance in feces will be measured during that time and for four weeks following administration.
Background: - Standard treatment for the hepatitis C virus (HCV) is a combination of the drugs peg-IFN and ribavirin. However, this treatment is not very effective in people with a serious type of HCV (HCV genotype 1) and also in people who have human immunodeficiency virus (HIV) coinfection. Researchers want to add a new drug, boceprevir to see if it can improve treatment results in people with both HCV genotype 1 and HIV. Boceprevir used in combination with peg-IFN and ribavirin has been recently approved for the treatment of people with HCV genotype 1 infection only, and is currently being studied in those with HIV and HCV. Objectives: - To test boceprevir, peg-IFN, and ribavirin as a treatment for HCV genotype 1 in people with HCV monoinfection compared to those with both HIV and HCV infections. Eligibility: * Individuals at least 18 years of age who have HCV genotype 1 infection, and have not received interferon treatment for HCV * Half of the study participants will also have HIV infection. Design: * Participants will be screened with a medical history and physical exam. They will also have blood and urine tests. * Participants will also have heart and liver function tests, and answer questions about mood and depression. * Those in the study will receive ribavirin tablets to take twice a day, and peg-IFN to inject under the skin weekly. * Two weeks after starting treatment, participants will have blood tests to study the treatment. * Four weeks after starting treatment, participants will start taking boceprevir three times a day. * Participants will have regular study visits with blood samples and other tests. The length of therapy will depend on the level of virus detected in the blood at several clinic visits. Those who do not respond well to the medicines at 12 weeks will stop treatment. The full length of treatment is 48 weeks.
Study Hypothesis: Pioglitazone may decrease inflammation in cystic fibrosis lung disease. Primary outcomes: Markers of inflammation (neutrophils, elastase, cytokines and bacteria)will be measured in induced sputum specimens before and after a 4 week treatment period with pioglitazone in clinically stable CF patients.