A Phase I, Multicenter, Randomized Trial to Evaluate the Safety and Immunogenicity of a Recombinant Vaccinia-HIV Envelope Vaccine (HIVAC-1e) in Combination With a Panel of Subunit Recombinant HIV Envelope Vaccines
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 56
- 试验地点
- 1
研究概览
简要总结
Primary: To determine in healthy volunteers whether priming with a vaccinia HIV-1 gp160 envelope gene recombinant vaccine (HIVAC-1e) followed by boosting with one of two subunit recombinant HIV-1 envelope vaccines (Env 2-3 and gp120) provides enhanced immunogenicity compared to vaccination with the gp120 subunit vaccine alone. (Per 10/01/92 amendment, boosts with VaxSyn (gp160) were eliminated.) To evaluate the immunogenicity of one versus two priming doses of HIVAC-1e prior to a boost with gp120. To compare the relative immunogenicity of the three subunit vaccines when administered as boosters.
Secondary: To examine the safety of administering the individual subunit vaccines in combination with HIVAC-1e and the safety of administering the gp120 subunit vaccine alone.
In a previous study of candidate HIV vaccines, the evidence suggested that administration of a booster vaccination with a different vaccine preparation may produce a better immune response than administration of HIVAC-1e vaccine alone.
详细描述
In a previous study of candidate HIV vaccines, the evidence suggested that administration of a booster vaccination with a different vaccine preparation may produce a better immune response than administration of HIVAC-1e vaccine alone.
Seventy healthy volunteers are randomized to one of four groups. Groups A and D receive one initial immunization with HIVAC-1e followed by two boosts with subunit gp120 and Env 2-3, respectively, at months 8 and 12. Group B receives two immunizations with HIVAC-1e at months 0 and 8 followed by a single boost with subunit gp120 at month 12. Group C receives three doses of subunit gp120 only at months 0, 8 and 12. (Per 10/01/92 amendment, boosts with VaxSyn (gp160) have been eliminated.) Subjects are followed for 18 months.
研究设计
- 研究类型
- Interventional
- 主要目的
- Prevention
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供