Dynamics of biological markets with multiple biosimilar competitors in the United States.

IF 3.6 3区 医学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Expert Opinion on Biological Therapy Pub Date : 2024-10-09 DOI:10.1080/14712598.2024.2412648
Morgane C Mouslim, Mariana P Socal, Antonio J Trujillo
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Abstract

Background: The dynamics of biological markets with multiple biosimilar competitors in the United States are poorly understood. Moreover, due to confidentiality issues, the relationship between originator biologic net prices, rebates, and biosimilar entry is largely unexplored.

Research design and methods: We conducted a review of the Food Drug Administration (FDA) purple book and manufacturer websites to identify all originator biologics with multiple competitors and their characteristics. We leveraged a novel data source to examine originator biologic net prices and rebates over time and used descriptive statistics and interrupted time-series analyses to assess their relationship with biosimilar entry.

Results: By December 2022, only five originator biologics had three or more available biosimilar competitors. Mean time between biosimilar approval and biosimilar launch was 9 months (SD = 7.04 months). By third biosimilar competitor, entry net prices for originator biologics had decreased by 9.34% to 50.93%, while rebates had increased by 25.35% to 89.71%.

Conclusions: Very few originator biologics have multiple available biosimilar competitors. Barrier to biosimilar availability seems to be at the approval level as the time between approval and launch is relatively short. However, originator biologics respond quickly to biosimilar competition, mainly through an increase in rebates.

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美国存在多个生物仿制药竞争者的生物市场动态。
背景:人们对美国存在多个生物仿制药竞争者的生物市场动态知之甚少。此外,由于保密问题,原研生物制剂的净价格、回扣和生物仿制药进入市场之间的关系在很大程度上尚未得到探讨:我们查阅了食品药品管理局(FDA)的紫皮书和制造商网站,以确定所有有多个竞争对手的原研生物制剂及其特征。我们利用新颖的数据源研究了原研生物制剂在一段时间内的净价格和回扣,并使用描述性统计和间断时间序列分析评估了它们与生物仿制药进入市场的关系:到 2022 年 12 月,只有五种原研生物制剂拥有三个或更多的生物仿制药竞争者。生物仿制药获批与生物仿制药上市之间的平均时间为 9 个月(SD = 7.04 个月)。到第三个生物仿制药竞争者时,原研生物制剂的入市净价下降了 9.34% 至 50.93%,而回扣则增加了 25.35% 至 89.71%:结论:只有极少数原研生物制剂拥有多个生物类似药竞争者。生物仿制药上市的障碍似乎在于审批层面,因为从审批到上市的时间相对较短。然而,原研生物制剂对生物仿制药竞争的反应很快,主要是通过增加回扣。
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来源期刊
Expert Opinion on Biological Therapy
Expert Opinion on Biological Therapy 医学-生物工程与应用微生物
CiteScore
8.60
自引率
0.00%
发文量
96
审稿时长
3-8 weeks
期刊介绍: Expert Opinion on Biological Therapy (1471-2598; 1744-7682) is a MEDLINE-indexed, international journal publishing peer-reviewed research across all aspects of biological therapy. Each article is structured to incorporate the author’s own expert opinion on the impact of the topic on research and clinical practice and the scope for future development. The audience consists of scientists and managers in the healthcare and biopharmaceutical industries and others closely involved in the development and application of biological therapies for the treatment of human disease. The journal welcomes: Reviews covering therapeutic antibodies and vaccines, peptides and proteins, gene therapies and gene transfer technologies, cell-based therapies and regenerative medicine Drug evaluations reviewing the clinical data on a particular biological agent Original research papers reporting the results of clinical investigations on biological agents and biotherapeutic-based studies with a strong link to clinical practice Comprehensive coverage in each review is complemented by the unique Expert Collection format and includes the following sections: Expert Opinion – a personal view of the data presented in the article, a discussion on the developments that are likely to be important in the future, and the avenues of research likely to become exciting as further studies yield more detailed results; Article Highlights – an executive summary of the author’s most critical points.
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