在2个月的健康婴儿中,sIPV的安全性和免疫性 顺序免疫计划组合与bOPV:第三阶段,随机,盲目,并行正控临床试验
Yafei Liu1, Xiaodong Liu2, Li Zhang2
1Beijing Minhai Biotechnology Co., Ltd., Beijing 102600, China.
Vaccines
|November 26, 2025
概括
萨宾无活化脊髓灰质炎疫苗 (sIPV) 在婴儿中显示出良好的安全性和免疫性. 这种连续免疫接种方案显示,与对照疫苗相比,该疫苗没有劣势,这表明其有效性.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 儿童传染病 儿童传染病
背景情况:
- 脊髓灰质炎病毒仍然是一个全球公共卫生问题,需要有效的疫苗接种策略.
- 无活化脊髓灰质炎病毒疫苗 (IPV) 对于消除脊髓灰质炎的努力至关重要.
- 为了优化免疫反应,正在探索结合不同类型疫苗的顺序免疫计划.
研究的目的:
- 评估Sabin无活化脊髓灰质炎疫苗 (sIPV) 在顺序免疫接种方案中的安全性和免疫性.
- 为了比较基于sIPV的计划与健康婴儿的全细胞无活化脊髓灰质炎疫苗 (wIPV) 计划.
- 评估接种疫苗后的抗体反应和不良事件.
主要方法:
- 一个3期随机对照试验,涉及300名2个月龄的健康婴儿.
- 婴儿被分配到一个sIPV-sIPV-bOPV (测试) 或wIPV-wIPV-bOPV (控制) 组.
- 安全性评估包括监测不良反应,而免疫性通过测量脊髓灰质炎病毒抗体水平在接种前和接种后进行评估.
主要成果:
- 两种疫苗接种计划均表现出相似的安全性概况,在不良反应发生率或严重程度方面没有显著差异.
- 在这两组中都没有报告疫苗相关的严重不良事件.
- 与对照组相比,sIPV组显示了所有类型的脊髓灰质炎病毒的非较低的血清转化率,以及与对照组相比,针对I,II和III类型的脊髓灰质炎病毒中和抗体的显著更高的几何平均标位 (GMT).
结论:
- 萨宾无活化脊髓灰质炎病毒疫苗 (sIPV) 通过顺序免疫计划给予婴儿是安全的,在婴儿中具有免疫性.
- 基于sIPV的治疗方案显示与基于wIPV的治疗方案相比没有劣势,表明其作为预防脊髓灰质炎的有效策略的潜力.
- 这项研究支持在顺序免疫计划中使用sIPV,以实现对脊髓灰质炎病毒的强大的幽默免疫力.
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