View clinical trials related to Virus Diseases.
Filter by:The aim of this study is to demonstrate the immune response and to evaluate safety of the RSVPreF3 OA investigational vaccine in non-immunocompromised adults 18-49 years of age (YOA), who are at increased risk (AIR) for respiratory syncytial virus (RSV) disease, compared to older adults (OA) (>=) 60 YOA and above
This is a randomized, blinded, placebo-controlled, dose-ranging Phase 1b study of the safety, PK, and antiviral activity of ABI-4334 in treatment-naïve or off-treatment chronic Hepatitis B virus (cHBV) subjects that are Hepatitis B e antigen (HBeAg) positive or negative. The study will enroll up to 5 sequential cohorts of 10 subjects each, for a total of up to 50 subjects, randomized 8:2 to receive ABI-4334 or placebo.
The purpose of the pivotal study is to collect blood specimens and clinical data from pediatric (>90 days old) and adult (≥18 years old) patients presenting with signs and symptoms suggestive of acute bacterial or viral infection. These samples will be used to establish the diagnostic performance of MeMed BV™ for differentiating bacterial from viral infection using method comparison and/or method concordance.
This study is designed to evaluate the magnitude and duration of the human adaptive immune response to the JYNNEOS Modified Vaccinia Ankara-Bavarian Nordic (MVA-BN) vaccine in the blood, lung mucosa, skin and bone marrow.
This study will test if affordable air cleaning devices (box fans with a filter attached and/or ultraviolet light lamps) installed in classrooms can reduce the number of viral respiratory illnesses schoolchildren experience.
"Formosa 1-Breath Free (NRICM101) " has been widely known in Taiwan to treat COVID-19. However, there is no phase III pivotal clinical trial of "Formosa 1-Breath Free (NRICM101) " . In order to obtain scientific, standardized, and comparable clinical results, the study will be implemented to evaluate the efficacy of safety of "Formosa 1-Breath Free (NRICM101) ". The objective of the study was used the product which be provided by Tian-I Pharmaceutical Co. Ltd. to evaluate the efficacy and safety of the subjects with the symptoms of COVID-19 or Influenza-like after taking "Formosa 1-Breath Free (NRICM101) ". This study is a randomized, double-blind, parallel controlled clinical trial. The study consisted of 3 cycles: screening period, treatment period (5 days) and follow-up period. The treatment of this study is divided into two groups: The test drug is Formosa 1-Breath Free (NRICM101) granule 5g/bag, 3 times a day；The control drug is the placebo (dummy) 5g/bag, 3 times a day. The sample size in the study is at least 150 people who can be evaluated, and the dropout rate of the test is 10-15%. The estimated sample size is around 170 people. After signing the ICF, vital signs (sitting blood pressure, pulse rate, SpO2, respiratory rate and body temperature), physical examination, chest X-ray, and laboratory test will be checked in screening period. Only subjects with clinically acceptable and following the inclusion and exclusion criteria will eligible to enroll in this study. Compliance will be assured by administration of the study drug under the supervision of the investigator or his deputy. Subjects will be free to withdraw at any time without stating any reason. Data will be analyzed from those subjects who complete the entire study; however, the case report forms and the final study report should include reasons for withdrawals and any necessary treatment.
The goal of this intervention research is to learn about the safety and tolerability of 162 with a single ascending dose in subjects with chronic hepatitis B virus (HBV) infection.
The characterization of the bacterial or viral etiology of an infectious event is required for both isolation decisions and rationale use of antibiotics. In emergency room (ER), the direct identification of the causal pathogen is rarely available in real-time. Alternative is the identification of the host-response to either a bacterial or viral infection. One of this host-response is the expression of peripheral leukocytes cell surface markers, measured by flow cytometry. Investigators and others have reported the high diagnostic performances of combination of cell surface biomarkers to differentiate bacterial from viral infection. The CYTOBACT study aims to confirm on a 500 patients multicentric cohort (200 having already been collected during another study: SEPTIMET), the best combinations for this diagnostic issue. The study will be conducted in 3 emergency departments of APHP hospitals network in Paris, France. Patients with a suspicion of infection will be proposed to participate. No intervention will be introduced during the routine care in the (ER) which will be let at the discretion of the treating emergency physician. During the routine blood sampling in the ER, an additional 30 ml volume of whole blood will be collected, centrifugated, aliquoted and stored at -80°C for further measurement of the expression of a panel of cell surface markers. The participants will be followed up during their hospitalization (if any) and no longer than 28 days. Clinical data at admission, usual blood tests and all microbiological investigations performed during the hospital stay will be recorded into an electronic case record form (eCRF). Based on all those recorded data (excepted the results of flow cytometry for cell surface biomarkers) 2 independent adjudicators will qualify the infectious episode into bacterial,viral or no infection, and (if any) into infection, sepsis or septic shock (according to Sepsis 3.0 definitions). Using different "machine learning" statistical tools, all the combination of the cell surface biomarkers will be tested to select those with the highest performance to differentiate bacterial from viral infection.
The goal of this randomized controlled trial is to investigate whether individuals in DRC previously vaccinated with Zabdeno/Mvabea® or Ervebo® vaccine schedules against Ebola virus can be safely and adequately boosted with homologous or heterologous vaccine schedules. Participants will be randomized to receive either a homologous or heterologous vaccine schedule and will be asked to come to the clinic at prespecified timepoints over a period of 6 months to collect blood samples for comparison of immunological responses against Ebola virus between both schedules. Safety and tolerability of the vaccines will be evaluated by recording Adverse Events (AE's) and grading physical and vital signs evaluations.
In this study 30 healthy adult participants will receive a single dose of an Ebola vaccine. Blood samples, fine needle aspirates, core biopsies, and bone marrow aspirates will be collected prior to and following vaccination to assess immune responses in the blood, lymph nodes, and bone marrow over multiple time points.