Transcutaneous Immunization for Tetanus Booster

破伤风加强剂经皮免疫

• 批准号: 6444481
• 负责人: GREGORY M GLENN
• 金额: $ 87.14万
• 依托单位: IOMAI CORPORATION
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6444481
• 关键词: active immunization; antibody neutralization test; cholera toxin; clinical research; clinical trial phase I; drug administration routes; drug screening /evaluation; human subject; human therapy evaluation; immunization; immunomodulators; laboratory mouse; patient oriented research; tetanus toxoid; topical drug application; vaccine development

DESCRIPTION: (Provided by Applicant) Based on extensive animal testing and limited human studies, transcutaneous immunization appears to be a viable and valuable technological improvement to traditional administration of vaccines. The aim of the proposed research plan is to continue commercialization of the technology through further clinical development of the lead tetanus booster product, administered by means of a simple skin patch. The critical activities in this program include: A Phase I human clinical study to further demonstrate safety and immunogenicity at lower adjuvant/antigen ratios. Product development in the area of formulation, analytical methodology, and patch design to yield a stable, commercially viable product design. A subsequent Phase I human study to evaluate the safety and efficacy of the proposed formulation(s) and patch design(s), at the appropriate dose of adjuvant and antigen. Specific outcomes of the work will be a product design that can advance to Phase II/III human studies required for regulatory licensure. Commercial opportunities for a tetanus booster product have been researched and identified, consisting primarily of developing world programs aimed at eliminating maternal and neonatal tetanus, and at-risk populations in developed countries, including those over 50 years of age and other specific at-risk groups. PROPOSED COMMERCIAL APPLICATION: The Transcutaneous tetanus booster is directed to 2 markets: 1. Maternal and neonatal tetanus elimination, primarily in developing countries; and, 2. Adult booster & at-risk population, including the over-50 population and other specific at-risk groups, such as agricultural workers. The commercial introduction of a tetanus vaccine delivered through a patch is expected to increase access to the vaccine and compliance with immunization protocols for the 2 focus markets, thus growing both markets. Additionally, the Transcutaneous booster will decrease the risk of needle-sticks and related disease, and reduce personnel and equipment requirements related to tetanus immunization.

产品说明：（申请人提供）基于广泛的动物测试和有限的人体研究，经皮免疫似乎是对传统疫苗接种的可行且有价值的技术改进。拟议研究计划的目的是通过进一步临床开发通过简单皮肤贴片给药的铅破伤风加强剂产品，继续将该技术商业化。 该方案的关键活动包括： 进一步证明安全性和免疫原性的I期人体临床研究 在较低的佐剂/抗原比率下。 在配方、分析方法学和 贴片设计以产生稳定的、商业上可行的产品设计。 随后的I期人体研究评价了 拟定制剂和贴剂设计，适当剂量 佐剂和抗原。 这项工作的具体成果将是一个产品设计，可以推进到监管许可所需的II/III期人体研究。 已经研究并确定了破伤风加强剂产品的商业机会，主要包括旨在消除孕产妇和新生儿破伤风的发展中国家方案，以及发达国家的高危人群，包括50岁以上的人群和其他特定的高危人群。 建议的商业应用：经皮破伤风助推器针对2个市场：1。消除产妇和新生儿破伤风，主要是在发展中国家; 2.成年助推者和高危人群，包括50岁以上人群和其他特定高危人群，如农业工人。通过贴片提供的破伤风疫苗的商业引入预计将增加两个重点市场获得疫苗的机会和遵守免疫接种协议的情况，从而扩大两个市场。 此外，经皮加强剂将减少针刺和相关疾病的风险，并减少与破伤风免疫接种有关的人员和设备需求。