The Use of Risk-Sharing Contracts in Healthcare: Theoretical and Empirical Assessments.

OBJECTIVE: The aim of this review is to provide a summary of the literature on risk-sharing agreements, including conceptual, theoretical and empirical (number of agreements and their achievements) perspectives, and stakeholders'  perceptions.
METHODS: We conducted a systematic literature search in MEDLINE from 2000 to April 2019, following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) methodology, and completed it with a manual search of other publications (mainly grey literature). The search was restricted to publications with English abstracts; the initial identification of articles was restricted to the title, abstract and key words fields. The geographical scope was not restricted.
RESULTS: Over 20 studies proposed different taxonomies of risk-sharing contracts, which can be summarised as financial and paying-for-performance agreements. Theoretical studies modelling the incentives to implement risk-sharing agreements are scarce; they addressed different types of contracts and regulatory contexts, characterizing the drug prices and the optimal strategies of the involved agents. Empirical studies describing specific agreements are abundant and referred to different geographical contexts; however, few articles showed the economic results and assessed the value of such contracts. Stakeholders' perceptions of risk-sharing contracting were favourable, but little is known about the economic and clinical advantages of specific agreements. Whether risk-sharing contracts have yielded the desired results for healthcare systems remains uncertain.
CONCLUSION: Risk-sharing contracts are increasingly used, although the lack of transparency and aggregated registries makes it difficult to learn from these experiences and assess their impact on healthcare systems.