Active clinical trials for "Virus Diseases"

The diverse clinical syndromes associated with hepatitis C underscore the multifactorial and polygenic nature of HCV infection. Both viral and host factors likely contribute to variations in infection outcome, disease susceptibility and progression, and treatment response. This protocol will focus on the immunogenetics of HCV infection. Various candidate genes, most of them related to host immune response in microbial infection, have defined genetic polymorphisms that have been associated with variable manifestations of infections including malaria, tuberculosis, leprosy, AIDS and hepatitis B. In this proposal, we plan to collect peripheral blood mononuclear cells as a source of DNA from approximately 1500 patients with HCV infection, analyze genetic polymorphisms of various candidate genes in association with viral clearance, disease progression or treatment response, and characterize the functional consequences of these polymorphisms in patients with well-defined clinical sequelae of HCV infection. We will also collect blood from patients with other forms of liver diseases (approximately 300) or normal volunteers (approximately 200) as controls. By identifying relevant host factors genetically and investigating their molecular interactions with HCV, we may gain additional insights into HCV pathogenesis and uncover new potential targets for vaccine development and treatment intervention.

Despite access to experimental Ebola Virus Disease (EVD)-specific treatments, about 30% of patients still die in the Ebola Treatment Centers (ETC) in DRC. There is limited study done about the potential contribution of bacterial co-infections (in particular bloodstream infections) to this adverse outcome, as blood cultures were so far rarely available in epidemic areas. Findings from patients treated in Europe and the USA, and case discussions in the field call for further investigation. Building further on an ongoing microbiological surveillance project of ITM and INRB in DRC, we are able to set up a research project which will pilot in a standardized manner clinical bacteriology tools (bacterial blood cultures, biomarkers as CRP, procalcitonin and white blood cell differential count, and clinical early warning scores) to study bacterial bloodstream infection in EVD patients in the N-Kivu/Ituri outbreak. This project will add evidence on 1) frequency, causative pathogen and antibiotic resistance profiles of bacterial bloodstream infections, as well as 2) the predictive value of biomarkers and early warning scores, in EVD patients at different timepoints during hospitalization in an ETC in DRC. The results will inform appropriate antibiotic treatment in an EVD setting and improve patient outcomes.

This study is being conducted to determine whether MAU868 warrants further clinical development for the prevention of BKV infection in kidney transplant recipients.

This protocol serves as a mechanism to collect, store, and distribute bodily fluid and tissue samples obtained from Hematopoietic Cell Transplant (HCT) or novel immunotherapy patients and their donors at the Masonic Cancer Center in order to conduct correlative studies of the immune system, microbiota, and their interactions. Fluid (including but not limited to, blood, urine, saliva, cerebrospinal fluid, bronchoalveolar lavage fluid) sample log-in, processing, relabeling, and storage is performed by the Masonic Cancer Center (MCC) Translational Therapy Lab (TTL).

This study will try to identify new or known viruses responsible for diseases or conditions of unknown cause. Viruses are an important cause of illness. They have been identified as causes of several cancers, including certain liver cancers and cervical cancer. Several diseases, such as Kawasaki s disease, aplastic anemia, aphthous ulcers, and certain fevers of unknown origin in immune suppressed patients are thought possibly to be due to viruses, but their cause has not yet been determined. This study will use very sensitive molecular techniques to try to identify new or known viruses in patients with conditions of unknown causes. This study does not involve any treatment. Any patient with a condition or disease whose cause is unknown may be eligible for this study. A referral from a local physician is required for patients who wish to enroll in this study. Participants will have blood samples drawn up to four times during the study. The total amount of blood drawn in any 6-week period will not exceed 50 milliliters (about 3-1/2 tablespoons) for adults and 5 ml (about 1/2 tablespoon) per kilogram (2.2 pounds) for children. In addition, body fluids, such as joint or spinal fluid, or tissue samples, such as biopsy specimens, obtained previously for medical purposes, may be obtained for testing. The patient s doctor will be informed of any positive findings from the samples. Identification of a virus does not necessarily mean that the virus is causing the patient s condition or disease. Additional tests from many patients with similar diseases or conditions are required before a virus can be definitively associated with a disease. Similarly, failure to find a virus does not necessarily mean that the patient is not infected with a virus that is causing the condition, as the tests used in this study are imperfect and will not detect certain forms of viruses that can cause disease.

The Coronavirus disease 2019 (COVID-19) is causing a global pandemic with high morbidity and mortality among adults and mainly the elderly. Children seem to be little or not affected by this infection. It is estimated that children could be asymptomatic or pauci-symptomatic carriers and thus be vectors of the disease. This is why measures to close schools and confine populations have been decreed in a large number of countries, including France. However, there are only a few data on the prevalence of COVID19 disease in children. The deconfinement strategy depends on data on the prevalence of the disease, especially in children. Investigators propose to evaluate the incidence of Covid-19 in preschool and elementary schools children in the city of Nice (South of France) during the pandemic period using a local prospective study of 914 children

Background: - Bronchoalveolar lavage (BAL) is a procedure where a tube is passed through the mouth or nose into the lungs. Fluid is squirted through the tube into a part of the lung and then collected for examination. It is used to detect respiratory viruses. BAL is a relatively invasive procedure, and researchers want to test the accuracy of other procedures that do not involve collecting fluid from the lungs. The nasopharynx is the area of the upper throat that lies behind the nose. Researchers want to see if a swab taken from this area is as accurate as a BAL sample. Objectives: - To see if a nasopharynx swab can be used to detect respiratory viruses as well as BAL samples. Eligibility: - Individuals at least 12 years of age who will have a bronchoscopy to collect a BAL sample to test for respiratory viruses. Design: Participants will be screened with a physical exam and medical history. Participants will have a BAL sample collected. Participants will then have a nasopharynx swab. The swab will be inserted into the nose, left in place for up to 10 seconds, and then removed

SARS-CoV-2 is responsible for COVID-19. Today, RT-PCR performed on a nasopharyngeal sample remains the gold standard for diagnosing SARS-CoV-2 infection. However, several other assays have been developed to increase testing capabilities and provide rapid screening strategies such as antigenic lateral flow assays. Most recommended tests to date are based nasopharyngeal sampling that is often poorly tolerated by patients and associated with a significant risk of infection for the sampler. Saliva can be used but provide slightly lower sensitivities depending of the subsequent assay use with those samples. The detection of the N antigen of SARS-CoV-2, by ELISA or rapid immunochromatographic technique, on a serum or blood sample would make it possible to overcome these constraints and to provide a new testing alternative. ELISA tests are faster, cheaper and easier to automate than molecular biology approaches. Blood sampling may be easier to perform in certain populations (in particular in hospitalized patients who already benefit from blood sampling, blood donors, etc.), require less equipment, and is better tolerated (immunocompromised patients subject to blood sampling repeated), and can be integrated more systematically into assessments carried out at the entrance to hospitals or in town, etc. If the N-antigen levels in blood are sufficient, rapid antigen assay on capillary blood could also provide useful testing alternatives. In a pilot study conducted at Bichat Claude Bernard Hospital, the sensitivity of the first available commercial test was estimated at 93% (95% CI, 84.7-100), and its specificity at 98% (95% CI, 85.3-100). The main objective of the current work is to evaluate the sensitivity of the SARS-CoV-2 N antigen detection in the serum compared to nasopharyngeal SARS-CoV-2 PCR in several populations such as symptomatic hospitalized patients, symptomatic non-hospitalized patients and asymptomatic subjects. For each detection kit evaluated, the primary endpoint is the sensitivity (and its 95% confidence interval) of the detection of SARS-CoV-2 N antigen in serum overall and in those populations. The specificity will also be assess.

This 4-year project will be guided by a biobehavioral model for the study of exercise interventions in two phases with the purposes to : explore the patients' physical activity preferences and develop doable activity lists during treatment period examine the changes of health-related physical fitness component over interferon treatment develop the Personalized Physical Activity and Psych-Education (PPAPE) Program and test its effects on decreasing fatigue, physical and psychological distress, and improving their health-related physical fitness and quality of life in patients with chronic hepatitis C receiving Interferon with Ribavirin Combination Therapy evaluate the outcome of the PPAPE program on increasing adherence to therapy, the sustained virological response (SVR) in 24 weeks after the end of treatment, and the time-consuming for education program during intervention.

The objectives of this study are to evaluate efficacy and safety of longan extract spray (P80 spray) in volunteers with coronavirus disease 2019 (COVID19).Patients who infected COVID 19 (positive COVID 19 RT-PCR from nasal swab) are enrolled in the study. They will be treated with standard treatment of COVID 19. In addition, the patients will received longan extract nasal spray (P80 spray) or placebo nasal spray for 3 days (6 times). After that, they will be nasal swabbed for detecting COVID 19 infection. Adverse event will also be evaluated by physician or nurse.