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临床试验/NCT01396512
NCT01396512已完成3 期

Immunogenicity and Safety of a Single Dose of a Live Attenuated Japanese Encephalitis Chimeric Virus Vaccine (IMOJEV™) in Comparison With a Single Dose of SA14-14-2 Vaccine (CD.JEVAX™, Chengdu Institute of Biological Products, China) Administered in Healthy Toddlers in South-Korea

Sanofi Pasteur, a Sanofi Company6 个研究点 分布在 1 个国家目标入组 274 人开始时间: 2011年7月最近更新:
适应症

试验速览

阶段
3 期
状态
已完成
入组人数
274
试验地点
6
主要终点
Percentage of Participants With Seroconversion to Japanese Encephalitis Chimeric Virus Following Vaccination With Either IMOJEV™ or CD.JEVAX™ Japanese Encephalitis Vaccine

研究概览

简要总结

The purpose of this study is to compare Live Attenuated Japanese Encephalitis Chimeric Virus Vaccine (IMOJEV™) with Japanese encephalitis live attenuated vaccine (SA14 14 2 vaccine [CD.JEVAX™]) after a single dose vaccination to support product registration.

Primary Objective:

  • To demonstrate the non-inferiority of the antibody response 28 days after administration of one dose of IMOJEV™ compared to the antibody response 28 days after administration of one dose of the CD.JEVAX™ control vaccine.

Secondary Objectives:

  • To describe the immune response to Japanese encephalitis (JE) in both vaccine groups using 50% plaque reduction neutralization assay (PRNT50) assays before and after a single dose of IMOJEV™ vaccine or a single dose of CD.JEVAX™ vaccine.
  • To describe the safety of vaccination in all subjects up to 28 days and all serious adverse events up to 6-month after vaccination.

详细描述

All participants will receive a single dose of their assigned vaccination at Visit 1 (Day 0) and undergo immunogenicity assessment at Day 28 post-vaccination. Safety will be assessed from day of vaccination and up to 6 months post-vaccination.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
12 Months 至 24 Months(Child)
性别
All
接受健康志愿者

入选标准

  • Aged 12 to 24 months on the day of inclusion
  • In good general health, without significant medical history.
  • Provision of informed consent form signed by at least one parent or other legally acceptable representative.
  • Subject and parent/guardian able to attend all scheduled visits and comply with all trial procedures.

排除标准

  • Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the trial vaccination.
  • Planned participation in another clinical trial during the present trial period.
  • Known or suspected congenital or acquired immunodeficiency, or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy.
  • Known systemic hypersensitivity to any of IMOJEV™ components or history of a life-threatening reaction to a vaccine containing any of the same substances and vaccination,known systemic hypersensitivity to CD.JEVAX® main components and the other components (including Gelatin, kanamycin, and gentamicin).
  • Chronic illness at a stage that could interfere with trial conduct or completion, in the opinion of the Investigator.
  • Receipt of blood or blood-derived products in the past 3 months, that might interfere with the assessment of the immune response.
  • Previous vaccination against flavivirus disease, including Japanese encephalitis (JE).
  • Administration of any anti-viral within 2 months preceding Visit 01 and up to the 4 weeks following the trial vaccination.
  • Receipt of any vaccine in the 4 weeks preceding the first trial vaccination, except for pandemic influenza vaccination, which may be received at least two weeks before the study vaccines.
  • Planned receipt of any vaccine from the inclusion up to the 4 weeks following the trial vaccination.
  • History of central nervous system disorder or disease, including seizures.
  • Planned receipt of any JE vaccine during the course of the study.
  • History of flavivirus infection (confirmed either clinically, serologically or virologically).
  • Administration of systemic corticosteroids for more than two consecutive weeks within the 4 weeks preceding vaccination.
  • Febrile illness (temperature ≥38.0°C) or moderate or severe acute illness/infection 3 days before vaccination as well as the day of vaccination, according to Investigator judgment.
  • Thrombocytopenia or bleeding disorder contraindicated for vaccination with same administration route, or receipt of anticoagulants in the 3 weeks preceding inclusion.

结局指标

主要结局

Percentage of Participants With Seroconversion to Japanese Encephalitis Chimeric Virus Following Vaccination With Either IMOJEV™ or CD.JEVAX™ Japanese Encephalitis Vaccine

时间窗: Day 28 post-vaccination

Immunogenicity assessed using a Japanese encephalitis chimeric virus (JE-CV) 50% Plaque Reduction Neutralization Test (PRNT50). Seroconversion was defined as the percentage of participants who developed neutralizing antibody titers above 10 (1/dil) when seronegative at baseline (\<1/10) or who presented a ≥4-fold rise in their neutralizing antibody titers when seropositive (≥1/10) at baseline.

次要结局

  • Geometric Mean Titers Against the Japanese Encephalitis Chimeric Virus Before And Following Vaccination With Either IMOJEV™ or CD.JEVAX™ Japanese Encephalitis Vaccine(Day 0 (pre-vaccination) and Day 28 post-vaccination)
  • Number of Participants With Seroprotection Against Japanese Encephalitis Chimeric Virus Before And Following Vaccination With Either IMOJEV™ or CD.JEVAX™ Japanese Encephalitis Vaccine(Day 0 (pre-vaccination) and Day 28 post-vaccination)
  • Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Either IMOJEV™ or CD.JEVAX™ Japanese Encephalitis Vaccine(Day 0 up to Day 14 post-vaccination)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (6)

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