Active clinical trials for "Virus Diseases"

The purpose of this study is to assess changes in intrahepatic hepatitis B surface antigen (HBsAg) between baseline and on-treatment liver biopsy in response to JNJ-3989-based combination treatment.

INTRO-HCV is a multicentre randomised controlled clinical trial that will compare the efficacy of integrated treatment of chronic hepatitis C virus infection (HCV) within medically assisted rehabilitation (MAR) clinics providing opioid substitution therapy (OST) compared to standard treatment. The trial will recruit approximately 250 HCV infected in Bergen and Stavanger and about 1000 in a linked observational study. Intervention: Integrating diagnostic and treatment follow-up for HCV treatment into MAR outpatient clinics in Bergen and Stavanger including testing for HCV, counselling and treatment evaluation and treatment delivery. Primary objectives: Compare the effect of integrated HCV treatment assessed with sustained virological response at 12 weeks between the MAR outpatient clinics in Bergen and Stavanger (intervention arm) with standard treatment provided after referral to infectious disease clinics among patients who receive OST having HCV Secondary objectives: Compare treatment adherence between the intervention and control arms, and assess changes in quality of life, fatigue and psychological well-being before and after HCV treatment, as well as changes in drug use, infection related risk behavior, and risk of reinfection among those with sustained virological response. Main endpoint: Sustained virological response of HCV at 12 weeks (± 10 days) Study population: The target group will be patients receiving care with MAR from involved outpatient clinics in Bergen, Sandnes and Stavanger who are chronically infected with HCV and eligible for treatment according to national guidelines. Study duration: Participants will be included and followed up at least annually for the total study duration between 2017 and 2021. Expected outcome: This study will inform on the relative advantages and disadvantages of an integrated treatment program for HCV into MAR compared to standard care aiming to increase access to treatment and improved treatment adherence. If the integrated treatment structure is found to be safe and efficacious, it can be considered for further scale-up.

The goal of this observational study is to learn about he effects of hepatitis C virus on pregnancy. The main question[s] it aims to answer are: Effect of hepatitis C virus on liver function in pregnant women Mother-to-child transmission rate in pregnant women with hepatitis C

The purpose of the study is to evaluate the safety, reactogenicity, and immunogenicity of mRNA-1345 in children aged 2 to <5 years of age and in children at high risk of respiratory syncytial virus (RSV) disease 5 to <18 years of age to inform the dose level selection for the next phase of development (Phase 3).

The study is divided into 2 parts (Part A and Part B). Part A of the study will evaluate the safety and immune response to mRNA-1345 in high-risk adults aged ≥18 to <60 years. Part B of the study will evaluate the safety and immune response to mRNA-1345 in adults who received solid organ transplant (SOT).

A Phase 2, Randomized, Double-blind, Placebo-Controlled Trial to Evaluate Safety, Tolerability, and Immune Responses of an Investigational Monovalent Chimpanzee Adenoviral-Vectored Marburg Virus Vaccine in Healthy Adults

A Phase 2, Randomized, Double-blind, Placebo-Controlled Trial to Evaluate Safety, Tolerability, and Immune Responses of an Investigational Monovalent Chimpanzee Adenoviral-Vectored Sudan Ebolavirus Vaccine in Healthy Adults

This study is a vaccine-related clinical trial which will be conducted by our study team at Kenema Government Hospital (KGH)'s Viral Hemorrhagic Fever Program in collaboration with Tulane University School of Medicine. This study is funded by Merck & Co., the developers of ERVEBO®. This investigational medicinal product (IMP) was successful in Sierra Leone through the Sierra Leone Trial to Introduce a Vaccine against Ebola (STRIVE) working with the College of Medical and Allied Health Services (COMAHS) at the University of Sierra Leone. ERVEBO® was also successfully tested in Liberia and the Republic of Guinea. These successful trials led to the United States Food and Drug Administration (USFDA) approval of ERVEBO®, as well as approval for therapeutic use in the Democratic Republic of the Congo, Burundi, Ghana, and Zambia. This particular vaccination study will focus on the anamnestic response to the ERVEBO® vaccine, (full name - rVSVDG-ZEBOV-GP Ebola Virus Vaccine). The original clinical trials conducted excluded Ebola Virus Disease (EVD) survivors from participating. However, with ongoing research, there is evidence of waning immune response and even recurrent infections in EVD survivors.

Ebola virus disease (EVD) is emerging regularly in various African countries for various reasons: during contact with mortal remains, during an unsafe burial or following the viral dissemination around a recovered patient. However, tools to fight the spread of the disease are being made available to countries affected by MVE. A vaccine (Ervebo), developed by the Merck laboratory, demonstrated its efficacy in protecting contacts and contacts of contacts in the "Ebola That's Enough" trial and two monoclonal antibodies (Mabs) have demonstrated their efficacy in reducing mortality in patients with EVM: REGN-E3B and Mab114. The question of their use in post-exposure prophylaxis (PEP), defined as the treatment of contacts at very high risk of contracting EVD, is essential. Vaccination with Ervebo alone does not appear to be a good option for PEP, particularly because antibody synthesis is delayed, and the vaccine is likely to be inactive for 10 days after administration. Monoclonal antibodies, on the other hand, seem to be a promising avenue in this indication because of their rapid action on the inhibition of virus entry into the cell. Moreover, Ervebo vaccine and monoclonal antibodies share the same viral target. It is therefore possible that the vaccine is inhibited by the monoclonal antibodies, particularly in the case of concomitant administration. However, no data on vaccine efficacy in combination are available. The question of the interaction between the monoclonal antibody and Ervebo and the delay between the administration of these two strategies remains unresolved. The hypothesis of this trial is that Ervebo vaccine efficacy is diminished with the concomitant administration of a monoclonal antibody, especially if this administration is close (short time between Mabs and vaccination). We hypothesize that with an optimal delay between Mabs and vaccination, the immunogenicity of the vaccine combined with monoclonal antibodies could be non-inferior to the vaccine alone, thus providing optimal short and long term protection. The primary objective of this study is to compare the vaccine immune response at 24 weeks induced by Ervebo administered on the same day (D0) or at S3, S6, or S12 of Inmazeb administration, in healthy volunteers, with vaccination with Ervebo alone. The trial will have 5 arms. The control arm (vaccination alone) will serve as a comparator of vaccine response in the intervention arms. The 4 intervention arms will assess the minimum time between Mab and vaccination.

The goal of this randomized clinical trial is to test the efficacy of high efficiency particulate air (HEPA) cleaners in reducing respiratory viral exposure and infections in elementary school classrooms. Classrooms will be randomized to active vs. sham HEPA cleaners. The main questions it aims to answer are: Do classroom HEPA cleaners reduce exposure to viruses? Do classroom HEPA cleaners reduce student and teacher infections? Do classroom HEPA cleaners reduce infections in family members?