View clinical trials related to Virus Diseases.
Filter by:The purpose of this long-term follow-up (LTFU) study is to evaluate the incidence of the clinical diagnosis of asthma and the frequency of wheezing in infants and children with respiratory syncytial virus (RSV) infection who were treated with (lumicitabine or placebo) and have completed their last planned study-related visit in a feeding Phase 2 study (64041575RSV2004).
Microcephaly associated with Congenital Syndrome of the Zika virus (SCVZ) was highlighted due to atypical structural and behavioral changes of the central nervous system. Such changes contribute to the appearance of functional impairments and difficulties of adaptation of the child to the necessary therapeutic follow-up. In this context, the search for adjuvant therapies that allow better management of these alterations has grown and, given its advantages, aquatic physiotherapy may be an auxiliary resource in the care of this population. The aquatic environment is capable of promoting a state of relaxation that, when associated with a kinesiotherapy protocol, is believed to have this potentiated effect. Thus, our objective will be to evaluate the efficacy of aquatic physiotherapy on the level of stress and muscle tone in children with microcephaly associated with SCVZ. A crossover, randomized, controlled and blind study will be carried out with children between 3 and 24 months of age, who will undergo two interventions: aquatic physiotherapy and water immersion. The evaluation of muscle tone will be performed through the Tardieu scale before and after the intervention; the physiological parameters (heart and respiratory rate, oxygen saturation and temperature) and the stress level will be evaluated before, immediately after and 30 minutes after the intervention. In addition, questionnaires will assess the child's behavioral state, level of irritation and sleep characteristics. For data normalization the Shapiro Wilk Test will be applied; the percentage values and relative frequency will be used for the descriptive analysis and for the numerical variables the values of mean and standard deviation or median and interquartile range. The paired T and ANOVA tests for repeated samples will be applied, which will analyze the intra-group time factor for the dependent variables of each individual. And for intergroup analysis, the variables may be submitted to the T-Test for independent or Mann-Whitney samples.
This Phase 3 study is intended to assess the clinical lot-to-lot consistency in manufacturing by evaluating and comparing the immunogenicity of three consecutively manufactured lots of the Quadrivalent Virus-Like Particles (VLP) Influenza Vaccine, during the 2016-2017 influenza season, in healthy adults 18-49 years of age. A single dose of one of three consecutive lots of Quadrivalent VLP Influenza Vaccine (30 µg/strain) will be administered to 1,200 participants.
The goals of therapy against chronic hepatitis B are to decrease the morbidity and mortality related to chronic HBV infection. Currently available antiviral therapy can suppress viral replication but only a small proportion attain functional cure, which is defined as HBV surface antigen-to-antibody seroconversion. Hepatitis B surface antigen (HBsAg) is a marker of persistent hepatitis B infection. It has been observed that patients who had both hepatitis B and hepatitis C, and who were treated for their hepatitis C with 12 weeks of ledipasvir/sofosbuvir for had a decline in HBsAg levels. This study hypothesizes that a similar decrease would be seen in mono-infected hepatitis B subjects over the course of 12 weeks treatment with ledipasvir/sofosbuvir.
This is a Phase 1, first-in-human (FIH), single site, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, pharmacokinetics (PK), and immunogenicity of single ascending doses of a co-administered (1:1, w/w) combination of REGN3048 and REGN3051 mAb's, administered IV in healthy adult volunteers. Study duration of approximately 16 months. Approximately 48 evaluable subjects will be enrolled in the study, eight (8) subjects in each one of 6 sequential ascending IV dose cohorts. In each cohort, subjects will be randomized to receive mAb's REGN3048 and REGN3051 (6 subjects) or placebo (2 subjects). Primary Objective: To assess the safety and tolerability of REGN3048 and REGN3051 following co-administration of single, ascending IV doses of 1.5, 5, 15, 25, 50, and 75 mg/kg of each of the two mAb's.
This Phase 3 study is intended to assess the efficacy of the Quadrivalent VLP Influenza Vaccine during the 2017-2018 influenza season in healthy adults 18 to 64 years of age. One dose of Quadrivalent VLP Influenza Vaccine (30 μg/strain) or of placebo will be administered to approximately 10,000 participants
This study is related to a previous study, Clinicaltrials.gov ID: NCT02924467. There are some modifications in relation to the intervention arms as well as the use of a different cohort, thereby justifying the second submission to Clinicaltrials.gov. This trial is taking place in New York State, through partnership with the New York State Health Department (excluding New York City), and Colorado. Each state will have it's own Clinicaltrial.gov submission -- this was decided as some of the intervention components are different enough that separate registrations were warranted. Despite U.S. guidelines for influenza vaccination of all children starting at 6 months, only about half of children are vaccinated annually leading to substantial influenza disease in children and spread of disease to adults. A major barrier is that families are not reminded about the need for their children to receive influenza vaccination. The investigators will evaluate the impact of patient reminder/recall (R/R) performed by state immunization information systems to improve influenza vaccination rates by using 4 clinical trials (2 per state) in two different states. The investigators will assess effectiveness and cost-effectiveness of 1) autodialer R/R 2) text messages R/R 3) mailed postcard R/R as compared to 4) standard of care control (no R/R).
The purpose of this study is to continue the evaluation of antibody persistence through 11 to 15 years after first booster with Tick-Borne Encephalitis (TBE) vaccine. This study will further investigate the booster response in subjects who will receive their second booster dose* in this study. * Any booster given in this study will be the second that the subject has received (with regard to the follow-up of the previous study).
The purpose of the study is to learn about the safety, pharmacokinetics and antiviral activity of the study medicine (called sisunatovir/RV521) for the potential treatment of respiratory syncytial virus (RSV). Sisunatovir will be given as multiple doses during the treatment period. RSV is a highly contagious virus that can lead to serious lung infections in patients with reduced ability to fight infection. Most vulnerable populations include babies, the elderly and patients that have received a bone marrow transplant. This study is seeking healthy participants who are: 1. Aged 18 to 45 years old and will agree to the use of highly effective methods of contraception. 2. with a body mass index (BMI) of 18.0 to 30.0 Kg/m2 This study will consist of 2 cohorts of 33 participants each. In both cohorts participants will be exposed to the challenge virus on study day 0. Cohort 1 will receive either 200 mg of sisunatovir or placebo (looks the same as sisunatovir but contains no active medicine) 2 times a day for 5 days. Cohort 2 will receive either 350 mg of sisunatovir or placebo 2 times a day for 5 days. Participants will start taking the study medicine upon confirmation of RSV infection (or evening of Day 5 if not positive to RSV). The study medicine will be administered 12 hours apart (or twice daily). Each participant will remain in the quarantine unit until discharge on Day 12.
The recent increase in the number of cases of congenital microcephaly observed in Brazil is a reason of great concern. This increase occurred a few months after Zika virus (ZIKV) was introduced in the country, which was associated with reports of pregnant women presenting fever and rash illness during pregnancy. Thus, the hypothesis of a relationship between ZIKV infection and microcephaly became plausible. However, studies on the pathophysiology of maternal ZIKV infection, its consequences for the fetus, and the development of severe encephalopathy are still needed. Knowledge about the natural history of vertical transmission and its association with changes in fetal development in early life is still scarce. Studies on factors which determine the severity and clinical evolution, such as inflammatory response mechanisms, viral evolution, and development of serological tests to identify ZIKV infection, are still needed. The Aedes aegypti is responsible for the transmission of various types of viruses of interest to human health. Currently, it is primarily responsible for the transmission of the dengue, chikungunya, and ZIKV in epidemic proportions. In addition, it is not yet known whether there is an interaction between these viruses and whether the interaction can determine the severity of the disease. The aim of this study is to evaluate the natural history of ZIKV disease in two cohorts( pregnant women and children) starting with pregnant women or newborns or evennursing mothers, identifying risk biomarkers, mapping the anti-viral inflammatory response, evaluating the molecular evolution of the virus,which areimportant to determine the mechanisms of vertical viral infection and verify children neurodevelopment from birth to the end of 3rd year of life.