Active clinical trials for "Hemorrhagic Fever, Ebola"

This is a clinical trial in which healthy volunteers will be administered experimental Ebola vaccines. The investigators will vaccinate four groups of volunteers. Group one will receive the MVA-EBO Z vaccine once at the dose of 1 x 10^8 pfu. Three groups will receive the prime vaccine cAd3-EBO Z followed by the boost vaccine, MVA EBO Z. The second group of volunteers will receive the boost vaccine after 14 +/-7 days at a dose of 1 x 10^8 pfu and the third and fourth group, after 28 +/- 7 days but at different concentrations of MVA-EBO Z (1 x 10^8 pfu for group 3 and 1.5 x 10^8 pfu for group 4). The study will assess the safety of the vaccinations, and the immune responses to vaccination. Immune responses are measured by tests on blood samples. The cAd3-EBO Z and MVA-EBO Z vaccines are called viral vectored vaccines. They are made from viruses which are modified so that they cannot multiply. The viruses have extra DNA in them so that after injection, the body makes Ebola proteins (but Ebola does not develop), so that the immune system builds a response to Ebola without having been infected by it. Healthy volunteers will be recruited in Oxford and London England. The study will be funded by the Wellcome Trust.

The aim of our study is to assess the analytical and clinical performance of the FilmArray (FA) BioThreat-E test (BioFire®) for the diagnosis of Ebola virus disease in the field in Guinea versus conventional molecular techniques.

Background: - Ebola is a lethal disease. A lot is still unknown about Ebola and its long-term effects. Researchers want to learn what ill health conditions Ebola survivors have. They want to learn if Ebola survivors can infect others in their household through close contact. They also want to learn if Ebola survivors are immune from getting Ebola again. To learn these things, they want to follow people in Liberia for 5 years. Objectives: - To learn how Ebola affects the health of survivors and the people they live with. Eligibility: - People in Liberia who had Ebola in the past 2 years, who share a household with someone who had Ebola, or who got ill and went to an Ebola Treatment Unit but were sent home because they did not have Ebola. Design: Participants will be screened with family illness history, physical exam, and blood tests. They may have an eye exam. Ebola survivors and those who went to a Treatment Unit but did not have Ebola will visit a clinic at 3, 6, and 12 months, then every 6 months for 5 years. At each visit, they will repeat the screening tests. Participants who live with someone who had Ebola will have only the screening visit. But they may be asked to return for follow-up visits. These visits will help researchers learn more about the differences between those who have had Ebola and those who have not. Participants brought to the NIH Clinical Center will have documentation of positive Ebola virus PCR and a clinical syndrome compatible with acute EVD. The study will last 5 years.

A single arm, open-label, non-randomized, interventional phase 3 study to measure safety and effectiveness of a heterologous, two dose preventative vaccine (Ad26. ZEBOV, MVA-BN®-Filo) against Ebola Virus Disease.

The purpose of this study is to evaluate the post-vaccination immune status at different time points in subjects immunized against Ebola Virus Disease; to select an optimal regimen of product administration; and, to assess safety of medicinal product GamEvac-Combi - Combined Vector-Based Vaccine against Ebola Virus Disease, 0.5 ml+0.5 ml/dose, following the immunization with a half (0.25 ml+0.25 ml/dose) and full (0.5 ml+0.5 ml/dose) therapeutic doses.

The aim of this study is to investigate the persistence of the vaccine induced immune response between 24 - 60 months following primary vaccination. The study consists of three cohorts: Cohort 1: volunteers from the Phase 1 study of the various prime/boost regimes with two viral vectored Ebola vaccines: Ad26-ZEBOV and MVA-BN-Filo vaccines Cohort 2: volunteers who have been vaccinated previously with Ebola vaccine r-VSV-ZEBOV Cohort 3: volunteers from the Phase 2 study of 3 prime/boost regimes with Ad26.ZEBOV and MVA-BN-Filo vaccines (VAC52150EBL2001: EVOLVE).

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 highlighted the possibility, even in epidemic settings, of providing advanced supportive care for patients with VMEs. Indeed, while the prospect of offering any invasive medical care was widely discussed in 2014 in West Africa with the aim of limiting the exposure of caregivers, the epidemic of 2018-2019 has on the contrary seen the development of a number of medical care strategies, in parallel with the deployment of specific treatments. This study aims to describe a cohort of patients receiving this upgraded supportive care during the tenth epidemic in the DRC.

Background: Genes are instructions that tell the body how to work and grow. They can affect how the body responds to infection. Researchers want to learn more about genes that affect how the body responds to the Ebola virus. Some people with Ebola get very sick and die. Others do not. The research may lead to better treatments for Ebola virus and other germs. Objective: To look for genes that may be related to a person s chance of getting very sick after coming in contact with the Ebola virus. Eligibility: People at least 3 years of age who either: Had Ebola Had close contact with someone who had Ebola Were in an Ebola vaccine study Design: Participants will have a small amount of blood taken from an arm vein by a needle. Researchers will collect participants data from other vaccine studies they may have been in. Participants may be asked questions about their health and social history. Some participants will have their blood tested for the infection syphilis and HIV, the virus that causes AIDS. Participants will be told the results and will get help finding care, if necessary. Some participants will have their blood sample tested to see if they have had Ebola in the past. Blood samples will be stored for future research. They will be marked with a code but not with participants names.

The human monoclonal antibody (mAb), ansuvimab (mAb114), will be provided to Ebola-infected patients as either a treatment or as PEP under expanded access. Ansuvimab is administered at 50 mg/kg as a single intravenous (IV) infusion