Batson Amie, Meheus Filip, Brooke Steve
Department of Health, Nutrition and Population, The World Bank, Washington, DC, USA.
Vaccine. 2006 Aug 31;24 Suppl 3:S3/219-25. doi: 10.1016/j.vaccine.2006.05.042. Epub 2006 Jun 6.
The costs of developing and producing new-generation vaccines have increased compared to many of the older, "traditional" vaccines because of new technologies and regulatory requirements. While the public sector often supports basic research costs, private manufacturers are usually responsible for the investments in product development and production scale-up. When considering investments, firms evaluate the probability of a market. Unfortunately, the developing country vaccine market is small (in revenue terms) and often unpredictable, particularly given inaccurate forecasting in the past. Low-income developing countries expect low prices. Demand (actual decisions to pay for and introduce the vaccine) is almost always lower than need (estimates of requirements to achieve optimal public health outcomes), a distinction that may be even more significant for HPV vaccines given the number of new vaccines against priority diseases that will become available over the coming 5 years. One new mechanism under consideration to address some of these challenges is Advanced Market Commitments (AMCs). By providing an assured price subsidy for developing country purchase of a future vaccine meeting predefined standards, an AMC would provide industry with greater assurances of earning a reasonable return on their investment to serve the poorest developing countries. The AMC mechanism could provide critical motivation for increased industry (private) investment that would otherwise not occur. HPV vaccines are one of six vaccines being considered for a possible AMC pilot.
与许多旧的“传统”疫苗相比,由于新技术和监管要求,新一代疫苗的研发和生产成本有所增加。虽然公共部门通常支持基础研究成本,但私营制造商通常负责产品开发和扩大生产规模的投资。在考虑投资时,企业会评估市场的可能性。不幸的是,发展中国家的疫苗市场规模较小(从收入角度来看),而且往往不可预测,特别是鉴于过去预测不准确。低收入发展中国家期望低价格。需求(实际购买和引入疫苗的决定)几乎总是低于需求(为实现最佳公共卫生结果而估计的需求量),鉴于在未来5年内将有针对重点疾病的新型疫苗问世,这种差异对于HPV疫苗可能更为显著。正在考虑的一种应对这些挑战的新机制是“预先市场承诺”(AMCs)。通过为发展中国家购买符合预定标准的未来疫苗提供有保证的价格补贴,预先市场承诺将为行业提供更大的保证,使其投资能够获得合理回报,从而服务于最贫穷的发展中国家。预先市场承诺机制可以为增加行业(私人)投资提供关键动力,否则这种投资不会发生。HPV疫苗是正在考虑的可能进行预先市场承诺试点的六种疫苗之一。