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Showing 1-20 of 23 trials
NCT06372665
This is a single-arm, non-randomized, open-label post-marketing safety observation study. The purpose of this study is to investigate the safety of JEV-I given with primary immunization in a large amount of healthy children aged 8 months and older.
NCT03920111
There is a pressing need for a better experimental system to understand flavivirus antibody responses, beyond dengue, to make sure the investigators are using current vaccines to greatest effect and to inform the development of next-generation vaccines. This study will use live chimeric JE vaccine IMOJEV® as a tool for flavivirus epitope discovery. This will allow experimental JEV infection using replication competent, live, attenuated virus as a model, in a setting where the flavivirus infection history of humans can be tightly controlled.
NCT00604708
The objective is to demonstrate the non-inferiority of the Japanese Encephalitis vaccine IC51 compared to JE-VAX in healthy subjects aged \> or = 18 years
NCT00594958
The objective is to demonstrate equivalence of three IC51 batches in terms of Geometric Mean Titers for anti-JEV neutralizing antibody.
NCT00605085
The objective is to investigate the safety and tolerability of Japanese Encephalitis vaccine IC51 with an inactive control in healthy subjects aged \> or = 18 years
NCT04817917
This study is to evaluate the seroprevalence of neutralizing antibodies against Japanese encephalitis (JE) virus in children aged 6 years who were previously administered with 5 different immunization strategies by JE attenuated live vaccine (JEV-L) or/and inactivated vaccine (JEV-I). The secondary objective is to evaluate the immunogenicity of the booster dose of JEV-I at 6 years old for those previously immunized with 3 doses of JEV-I or those sequential administered with 1 dose of JEV-L and another dose of JEV-I.
NCT01900444
The aim of this study was to document the immunogenicity and safety of a booster dose of IMOJEV administered at least 12 months after the primary dose. Primary objective: * To describe the immune response to Japanese Encephalitis (JE) before and 28 days after a booster dose of IMOJEV administered at least 12 months after primary vaccination with IMOJEV. Exploratory objectives: * To describe the safety profile of a booster dose of IMOJEV® .
NCT02492165
The purpose of this study is to describe the immunogenicity and safety of IMOJEV® in adult and pediatric populations in Vietnam and serve a bridging study to compare immunogenicity, reactogenicity, and safety data obtained with IMOJEV® in the Vietnamese population with data from other Asian pediatric populations. Primary objective: \- To describe the safety profile of a single dose of IMOJEV®. Secondary objectives: * To evaluate the immune response to JE 28 days after the administration of a single dose of IMOJEV® in healthy Vietnamese subjects aged from 9 months to 60 years.
NCT04223037
This study evaluates the immunogenicity and safety of a purified inactivated JE vaccine compared to a commercialized JE vaccine. In this phase III, randomized, blind trial, infants at 6-23 months of age were randomly assigned to three groups to receive experimental vaccine or control vaccine with two different vaccination schedule respectively.
NCT00463476
To facilitate introduction of live attenuated SA 14-14-2 Japanese encephalitis vaccine (LJEV) into the National Immunization Programme of Sri Lanka, we evaluated the safety and immunogenicity of co-administration of LJEV and measles vaccine in children at 2 and 5 years of age. The primary hypothesis was that the seropositivity rate at 28 days post vaccination of SA 14-14-2 in subjects 2 and 5 years of age who have already received at least two doses of mouse brain-derived inactivated JE vaccine is greater than 80%. Japanese encephalitis virus is the leading cause of viral neurological disease and disability in Asia. The severity of sequelae, together with the volume of cases, make JE the most important cause of viral encephalitis in the world. Approximately 3 billion people-including 700 million children-live in areas at risk in Asia for JE. JE most commonly infects children between the ages of 1 and 15 years, and can also infect adults in areas where the virus is newly introduced. More than 50,000 cases are reported annually and cause an estimated 10,000 to 15,000 deaths. This figure is believed to represent only a small proportion of the disease burden that actually exists.
NCT03204227
A study of the study vaccine (JECEVAX- VABIOTECH-Vietnam) and a licensed vaccine (JEVAX-VABIOTECH-Vietnam) is conducted in Vietnamese children, aged 9 to 24 months to assess the safety of the study vaccine compares to licenced vaccine. Two hundred and twenty children are enrolled and randomly assigned into 2 groups (110 children/group), each of which receive 2 doses of study / control vaccine subcutaneously, at 28-34 days interval. Safety data included immediate reaction at the injection site and systemic reaction within 30 min of administration, solicited and unsolicited adverse events occurs from the 1st dose to 28-34 days after first dose and from the second dose to 28-34 days after 2nd dose. SAE (from start of first dose to 28-34 days after second dose).
NCT01001988
This is a long-term follow-up of the persistence of immune response in participants who previously received a single dose of JE-CV at age 12 to 18 months in Study JEC02 (NCT00735644) . No vaccination was administered during the present long-term follow-up study. Primary Objective: * To describe the yearly persistence of humoral immune response to Japanese encephalitis after a single dose of JE-CV
NCT00776230
The objective is to assess immunogenicity of a commercial IC51 batch at 3 different time points post filling (12, 18, 24 months) in terms of Geometric Mean Titers (GMT) for anti-JEV neutralizing antibodies at Day 56 after the first vaccination.
NCT01981967
The aim of this study is to further characterize the safety profile of IMOJEV®. Primary Objective: * To describe serious adverse events (SAEs, including adverse events of special interest \[AESIs\]) up to 60 days after administration of one dose of IMOJEV®. Secondary Objective: * To describe Grade 3 (severe) systemic Adverse Events (AEs) up to 30 minutes after administration of one dose of IMOJEV®.
NCT00735644
This study is to assess the safety and immunogenicity of three consecutive lots of JE-CV in toddlers aged 12-18 months. Primary objective: To demonstrate the bio-equivalence of three lots of JE-CV vaccine manufactured by sanofi pasteur. Secondary objective: To describe the safety of vaccination in all subjects
NCT01188343
This study is designed to compare the immunogenicity of Japanese encephalitis chimeric virus vaccine (JE-CV) and measles-mumps-rubella (MMR)vaccine when given together or when given at separate visits 6 weeks apart in toddlers aged 12 to 18 months. Primary objective: * To demonstrate the non-inferiority of the antibody responses in terms of seroconversion of the concomitant administration of JE-CV and MMR compared to the antibody responses after the single administration of JE-CV and MMR vaccine. Secondary objectives: * To describe the immune response to JE CV and MMR before and after one dose of JE CV and MMR vaccine, respectively. * To describe the safety of a single dose of JE-CV and MMR vaccine (given separately at a 6-week interval and the safety of the concomitant administration of JE-CV and MMR vaccine in all subjects up to 6 months after last vaccination.
NCT00596271
The objective is to investigate the immunogenicity of the Japanese Encephalitis vaccine IC51 (JE-PIV) single and concomitant with HAVRIX® 1440
NCT01856205
Japanese encephalitis is caused by a viral infection of the brain transmitted by the bite of an infected mosquito. Patients with Japanese encephalitis can rapidly develop worsening conscious level and seizures. Around a third will die from the infection and half of survivors have serious long-term neurological disability. The majority of those affected are children. There are many causes of viral encephalitis, however Japanese encephalitis virus is the most common cause worldwide with over 60,000 cases annually. It occurs over much of Asia and the geographical range is expanding. There is no specific treatment for Japanese encephalitis virus, although several have been trialed. In this study we examined the effect of a new treatment, called intravenous immunoglobulin, on children with Japanese encephalitis in Nepal. Prior studies have suggested intravenous immunoglobulin may neutralize Japanese encephalitis virus and suppress damaging inflammation in the brain. It has previously been used in individual cases but never examined in a randomized trial. There was recently a trial of IVIG in West Nile encephalitis in the United States, in which Professor Solomon was on the Scientific Advisory Committee. In this study we will look if intravenous immunoglobulin is safe in this context, and that this treatment may alter the way the immune system manages the infection. Therefore, in this pilot study we will test the hypothesis that IVIG can be safely given to children with suspected JE, with no increased risk of serious adverse events compared with placebo. The aim of this proposal is to conduct a pilot safety and tolerability randomized placebo controlled trial of intravenous immunoglobulin (IVIG) in patients with Japanese encephalitis, to explore the relationship between JEV viral load, pro-inflammatory markers called cytokines and blood brain barrier markers, and the effect of IVIG on these relationships.
NCT00314145
The purpose of this study is to determine non-inferiority in seroconversion and to compare the safety and tolerability between ChimeriVaxTM-JE and JE-VAX to the respective homologous virus strain after completion of vaccination course.
NCT00981630
The purpose of this study is to assess the safety, tolerability, and immunogenicity of a new formulation of lyophilised ChimeriVax™-JE, given at three dose levels, compared with placebo. Primary Objectives: Safety: * To obtain safety and tolerability data for a single subcutaneous vaccination with ChimeriVax™-JE, at three dose levels, in healthy adult volunteers (18-49 years old). Immunogenicity: * To obtain data on the antibody response to a single subcutaneous vaccination with ChimeriVax™-JE, at three dose levels, in healthy adult volunteers without prior Japanese encephalitis immunity. * To assess the durability of immune response up to 12 months following a single subcutaneous vaccination with ChimeriVax™-JE, at three dose levels.