Lot-to-lot Consistency Trial of JE Live Attenuated SA 14-14-2 Vaccine
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The proposed JEV05 study is a four-arm double-blind randomized controlled single center trial to evaluate, by examining post-vaccination seroprotection titers, the lot-to-lot consistency of three lots of JE live attenuated SA 14-14-2 vaccine manufactured in a new GMP facility, and to establish non-inferiority of the new vaccine in comparison to a single lot of the same vaccine manufactured in the existing facility. The study will enroll a total of 1,000 Bangladeshi infants aged 10 to 12 months. In addition to providing immunogenicity data, JEV05 will provide local safety data of JE live attenuated SA 14-14-2 vaccine among Bangladeshi children. This will be the first step to secure licensure for this life-saving vaccine in Bangladesh as well as provide data to support WHO prequalification of JE live attenuated SA 14-14-2 vaccine.
A Clinical Trial in Healthy Infants to Assess Lot-to-lot Consistency of Japanese Encephalitis Live Attenuated SA 14-14-2 Vaccine Manufactured in a New Good Manufacturing Practices Facility and Non-inferiority With Respect to an Earlier Product.
Study Start Date
Primary Completion Date
Study Completion Date
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Ages Eligible for Study:
10 Months to 12 Months (Child)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Infant's parent(s) or legal guardian(s) willing to provide signed informed consent.
Healthy infants aged 10 to 12 months at enrolment residing in Matlab HDSS intervention area who have completed all doses of EPI immunizations (BCG, DPT, HBV, Hib, OPV and measles) at least 4 weeks prior to enrolment.
Acute medical illness with or without fever within the last 72 hours or an axillary temperature (≥ 37.5°C ) at the time of vaccination.
Use of antibiotics or antipyretics within the last 72 hours prior to enrolment.
Severely or moderately malnourished infants (<-3 Z score).
History of prematurity (< 36 weeks of pregnancy).
Underlying medical condition such as failure to thrive, inborn errors of metabolism, bronchopulmonary dysplasia, or any major congenital abnormalities requiring surgery or chronic treatment.
History of serious chronic disease (e.g., cardiac, renal, neurologic, metabolic, rheumatologic, hematologic, or bleeding disorder).
Known or suspected impairment of immunologic function.
History of documented or suspected encephalitis or meningitis.
History of seizures, including history of febrile seizures, or any other neurologic disorder.
History of JE infection.
Prior receipt of a JE vaccine.
Received measles vaccine within 4 weeks prior to, or scheduled to receive a vaccination during, the conduct of this trial.
Prior or anticipated receipt of immune globulin or other blood products, or injected or oral corticosteroids or other immune modulator therapy within 6 weeks of administration of the study vaccine.
Serious adverse reactions (e.g. urticaria, angioedema, shock, breathlessness following vaccination or any life threatening condition) with any previous EPI vaccine.
Unable to attend the scheduled visits or comply with the study procedures.
Enrolled in another clinical trial involving any therapy.
Any condition that in the opinion of the investigator, would pose a health risk to the child, or interfere with the evaluation of the study objectives.
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