View clinical trials related to Zika.
Filter by:The International Cohort Study of Children Born to Women Infected with Zika Virus (ZIKV) During Pregnancy study is a prospective, observational, international cohort study of children previously enrolled in the ZIP study or other ZIP 2.0 Protocol Team approved ZIKV-cohort study that will continue the longitudinal follow-up of children born with documented confirmed or presumptive in-utero ZIKV exposure ("ZIKV-exposed" cohort) and children born without documented confirmed or presumptive in-utero ZIKV exposure, matched by site and birth sex ("ZIKV-unexposed" cohort). Follow-up evaluations and assessments will allow for the determination and comparison of long-term neurodevelopmental outcomes among in utero ZIKV-exposed and ZIKV-unexposed children. Each participant will be followed for about 2 years, beginning at approximately 18 months through 42 months of age.
This is a FIH, open-label, dose escalation, phase I clinical trial to assess the safety and immunogenicity of the candidate ChAdOx1 Zika vaccine in healthy volunteers administered intramuscularly.
Background: Mosquitoes and similar insects called sand flies carry parasites that can cause diseases. These viruses and parasites can spread quickly and be difficult to control. How people s bodies respond to insect bites may affect how they get infected. The response to bites is caused by the immune system, which helps fight off infections. Researchers want to study the immune response in skin to mosquito or sand fly bites and how the response changes after bites on multiple days. This may help researchers develop better vaccines. Objective: To study the immune response in skin to certain insect bites and how that changes after bites on multiple days. Eligibility: Healthy adults ages 18-64 Design: Participants will be screened under another protocol. Women must agree to practice effective contraception or abstinence. All participants must agree to not donate blood or use certain lotions or creams on visit days. Some participants will have 2 visits over a week. Others will have 5 visits over 8 weeks. All participants will have the following at least once: Medical history Physical exam Blood and urine collected Mosquito or sand fly feeding. Up to 10 insects will feed on participant s arm for up to 20 minutes. The insects are grown at NIH and do not carry any diseases. The skin will be checked and bites will be treated. Skin samples taken. The skin will be cleaned and numbed. A tool will remove a small piece of skin from 3 places on the arm. About a week after the last visit, participants will be called to see how they feel.
This is a phase 1 trial of one or more administrations of Zika Virus Purified Inactivated Vaccine (ZPIV). The trial will be conducted under a placebo controlled, double-blind, randomized allocation of study product. There are four groups in the study. Each group is testing a different vaccine schedule.
The clinical trial will assess the safety, tolerability, and immunogenicity of GLS-5700. GLS-5700 is a synthetic DNA plasmid vaccine against the Zika virus. This is a Phase 1 clinical trial of this vaccine which encodes for the premembrane-membrane and envelope regions of Zika virus. Zika virus, first discovered in the Zika forest in 1947, has caused a large epidemic in South America, Central America, and the Caribbean islands commencing in late 2014 or early 2015. Zika virus can cause significant neurologic disease to include Guillain Barre Syndrome in adults and microcephaly and other birth defects among children born to mothers who are infected during pregnancy. At present no vaccines or treatments have been approved for Zika virus infection.
Background: - The Laboratory of Infectious Diseases (LID) Clinical Studies Unit (CSU) enrolls healthy volunteers into clinical studies to study infectious diseases. - Viruses can be highly infectious and contagious. They cause considerable illness in the United States each year and a good example of this is influenza (the flu). The LID CSU performs clinical studies to learn about these viral infections and assist in the development of vaccines and treatments for the infections. These clinical studies include influenza "challenge studies" as well as natural history studies and phase I trials involving vaccines for viruses carried by mosquitos such as Zika or Dengue virus. - In influenza challenge studies studies, doctors expose a person to a flu virus. Then they study the flu through the body's natural healing process. This information will help to find better ways to prevent the flu and may also improve treatments for the flu. - Natural history studies and phase I trials of new vaccines are performed so the researchers can learn how some viral infections occur and if new vaccines are safe and potentially effective in preventing the infections. In some of these studies, participants experience insect bites with special clean (non-infected) insects (such as mosquitos) to better understand the role of insects in these infections. Objectives: - To screen healthy volunteers for future CSU studies. Eligibility: - Healthy people between the ages of 18 and 65 Design: - The 3- to 5-hour screening exam includes the following: - Medical history and physical exam - Standard blood tests including pregnancy, Hepatitis B and C, and HIV tests - Standard urine drug testing - Electrocardiogram (ECG) to test heart rhythm and function - Chest x-ray - Eligible volunteers are enrolled in the study for up to 1 year, until they take part in a CSU study or are found to be ineligible to participate. - Volunteers may withdraw from the study pool at any time.