View clinical trials related to Japanese Encephalitis.
Filter by:The objective is to assess the effect of a booster vaccination on immunogenicity of IC51 in terms of seroconversion rate.
The study investigates the long term persistence the Japanese encephalitis vaccine IC51 and the need of a booster dose
The objective is to demonstrate equivalence of three IC51 batches in terms of Geometric Mean Titers for anti-JEV neutralizing antibody.
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 at 9 months of age. The primary hypothesis was that the seropositivity rate at 28 days post vaccination in Japanese Encephalitis (JE) and measles concomitantly vaccinated subjects 9 months of age is greater than 80% for JE and greater than 90% for measles.
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.
This randomised, double-blind study is to be conducted on 96 subjects at multiple sites in India. Subjects will be enrolled by age group and randomised to either ChimeriVax™-JE (JE-CV) or JE Mouse Brain Derived Vaccine (JE-MBDV). Study consists of a screening period, a treatment period and a 2 year follow-up period. Primary safety endpoints will be the adverse event (AE) rates 28 days after completion of vaccination course. The primary efficacy endpoints will be the rate of seroconversion 28 days after completing vaccination.
The purpose of this study is to determine non-inferiority in seroconversion and to compare the safety and tolerability between ChimeriVax™-JE and JE-VAX® to the respective homologous virus strain and several wild types strains after completion of vaccination course.
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.
The purpose of this study is to assess whether ChimeriVax™ JE vaccine (a new vaccine to be used for vaccination against Japanese encephalitis) is safe and well tolerated when compared to placebo (dummy) vaccination.
Japanese encephalitis is the single largest cause of viral encephalitis in the world today. It occurs in yearly post monsoon outbreaks in Uttar Pradesh and other parts of India and south east Asia. There is presently no antiviral drug of proven benefit for this illness and treatment is mostly supportive. The drug Ribavirin is already in the market in use for other indications. It has been found useful in West Nile encephalitis and various hemorrhagic fevers caused by related arboviruses. This is a double blind placebo of Ribavirin in Japanese encephalitis. To the best of our knowledge, this is the first such trial in the world. The study hypothesis is that children treated with ribavirin will be no different from those getting placebo in terms of mortality, length of hospital stay, days to return to consciousness and oral feeds, days to become afebrile and convulsion free and in 3 month sequelae rate.