Active clinical trials for "Encephalitis, Japanese"

The primary objective is to assess the systemic and local safety profile of purified inactivated Japanese Encephalitis Virus (JEV) vaccine IC51 administered in two doses in a 28 days interval up to Month 7 after the first IC51 vaccination in a pediatric population from endemic regions.

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.

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.

This study aims to understand the persistence of the Japanese encephalitis (JE) antibody response in previously vaccinated children. The proposed study will enrol Bangladeshi children who had previously participated in a lot to lot consistency study (JEV05; NCT01567865) of JE live attenuated SA 14-14-2 vaccine (CD-JEV).

Japanese encephalitis (JE) is the leading cause of viral neurological disease and disability in Asia. A live attenuated vaccine (LJEV) manufactured in China has several advantages over other JE vaccines such as one dose schedule, using for infants, and the cheaper cost. Because the LJEV has been prequalified by the World Health Organization (WHO) in 2013, it will likely be used in other countries, and possibly co-administered with the first dose of measles-containing vaccine (MCV) to ensure early protection and reduce additional vaccination visits. The evidence for immunogenicity and safety of co-administration of LJEV with MCV is limited. Only one study conducted in the Philippines examining the co-administration of MCV with LJEV among 9 months infants, the results showed the proportion of achieved sero-protection against measles following MCV (96%) was slightly lower than in the MCV-only group (100%), and the measles antibody titres were also slightly lower in the co-administration group. Due to limited evidence available, the WHO position paper of measles vaccines has encouraged further investigation on the possible impact of co-administration of LJEV on measles vaccine effectiveness. In China, Measles-Rubella combined vaccine (MR) and LJEV is given at 8 months of age nationally. Considering China is reaching towards the goal of measles elimination, it will be important to conduct a study to compare the immunogenicity of MR administered alone or with LJEV, and also evaluate the safety and tolerability of LJEV administered with MR among 8 months infants. This study is a prospective, randomized, open-label, multi-center study enrolling infants aged 8 months. Basic demographic information of the infant will be taken and blood samples will be collected at enrollment (baseline) and at 6weeks following administration of MR, the measles antibodies will be measured, and compare seroconversion rates to assess for non-inferiority. All infants will be monitored for adverse events after MR.

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).

Establish non-inferiority of the immune response and evaluate the safety and tolerability of Rabies and Japanese Encephalitis (JE) vaccines given concomitantly or alone and according to either of 2 schedules for preexposure prophylaxis.

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® .

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®.

This study compares the safety and immunogenicity profile of several travel vaccines given alone or concomitantly with MenACWY-CRM to healthy adults.