View clinical trials related to Virus Diseases.
Filter by:This study is a preliminary investigation of immune responses, in the blood and in cervical & vaginal secretions, to proteins ("antigens") taken up across the undersurface of the tongue.
One single study has suggested that bone mineral density (BMD) is reduced in patients with non-cirrhotic chronic viral hepatitis C. Antiviral combination therapy with standard interferon and ribavirin may further decrease BMD. The aim of this study is to systematically investigate the effect of chronic hepatitis C genotype 1 infection alone and current standard therapy with peginterferon alfa-2a/ribavirin on BMD and bone metabolism.
Chronic viral infections induce oxidative stress that can cause a number of concomitant diseases, e.g. cardio-vascular diseases or metabolic disorders. Therefore, a sufficient treatment of oxidative stress may be of benefit for the patient to prevent further diseases. Shingles (herpes zoster infection) have been successfully treated with antioxidative substances like high-dose vitamin C for ages. Not only the acute symptoms can be diminished by high-dose vitamin C. Even long-term sequelae, like painful post-herpetic neuropathy, may be mitigated or even fully avoided.
Due in part to widespread availability of oseltamivir and clinical experience using oseltamivir to treat H5N1 influenza virus infections, many strains of influenza have become resistant to it. Other reliable methods of treating H5N1 must be identified in case of a pandemic. One such option is intravenous zanamivir used in combination with oseltamivir. The primary purpose of this study is to evaluate the interaction between oral oseltamivir and intravenous zanamivir administered as either a continuous or intermittent infusion in healthy adults.
This study will evaluate the safety, tolerability, and efficacy of vaniprevir when administered concomitantly with pegylated interferon (peg-IFN) and ribavirin (RBV) to treat treatment-naive genotype 1 hepatitis C virus (HCV)-infected patients.
This phase 2 study will evaluate the safety, immunogenicity and optimal timing of two injections at three dose levels of the tgAAC09 vaccine in healthy volunteers. Study volunteers will receive two intramuscular injections of tgAAC09 or placebo at Months 0 and 6 (groups A, C, E and G) or at Months 0 and 12 (groups B, D and F) and be followed for a total of 18 months following the first injection with the exception of group G in which volunteers will be followed for 12 months after the first injection (6 months after the second injection). This study will explore whether boosting is possible, and compare a shorter and more practical six-month time interval with a twelve-month time interval.
Viral infections are an important complication of transplantation. Immunosuppressive therapy interferes with T cell immunity resulting in a high incidence of viral infection. Newer agents, such as mycophenolate mofetil (MMF) and sirolimus, have been associated with an increased risk of herpes virus infection. The introduction of these more potent immunosuppressive agents over the past decade correlates with an increase in the rate of hospitalizations of transplant patients with infections. This prospective study will determine the role of sub-clinical herpes virus infections in the development of complications such as chronic allograft nephropathy (CAN) and Post Transplant Lymphoproliferative Disease (PTLD). By focusing on treatable herpes virus infections, these studies have the potential to identify therapeutic strategies that can be used to diminish the burden of graft loss from CAN, significantly improving renal allograft survival and quality of life in transplant patients. Future specific interventions to test the hypothesis of a direct causal relationship between sub-clinical herpes virus infection and CAN may include the use of anti-viral therapy in response to sub-clinical infection of the renal allograft and/or peripheral blood.
This is a Phase 2b, randomized, double-blind, parallel-group, placebo-controlled, multicenter study investigating the safety, tolerability and efficacy of two oral doses of GS-9450 in adults with chronic Hepatitis C Virus (HCV). Approximately 240 subjects 18-65 years of age who meet study entry criteria will be randomized (in other words, selected at random, like flipping a coin) to one of three treatment groups (80 subjects per treatment group) as follows:GS-9450 10 mg once daily,GS-9450 40 mg once daily, or matching placebo once daily. Following randomization, subjects will return within seven business days for a Baseline (Day 1) visit, at which time study medication will be dispensed and subjects will enter a 26 week treatment phase. During the treatment phase, subjects will receive study drug once daily for 24 weeks and then taper off of study drug over the following 2 weeks by receiving study drug once every other day for one week and then every 3 days for one week. Following completion of the treatment phase, subjects will enter a 4-week off-treatment follow-up phase.
This is a follow-up study with no treatment and only samples being collected.
Over the past decade, avian influenza (AI) has become a major health concern. The development of safe and effective vaccines against avian strains that infect people is important. The purpose of this study is to determine the safety of and immune response of an investigational AI vaccine in healthy adults against the H7N3 strain of avian influenza.