title: Private sector risk-sharing agreements in the United States: trends, barriers, and prospects.
abstract: OBJECTIVE
  Risk-sharing agreements (RSAs) between drug manufacturers and payers link coverage and reimbursement to real-world performance or utilization of medical products. These arrangements have garnered considerable attention in recent years. However, greater use outside the United States raises questions as to why their use has been limited in the US private sector, and whether their use might increase in the evolving US healthcare system.
  
  
  METHODS
  To understand current trends, success factors, and challenges in the use of RSAs, we conducted a review of RSAs, interviews, and a survey to understand key stakeholders' experiences and expectations for RSAs in the US private sector.
  
  
  METHODS
  Trends in the numbers of RSAs were assessed using a database of RSAs. We also conducted in-depth interviews with stakeholders from pharmaceutical companies, payer organizations, and industry experts in the United States and European Union. In addition, we administered an online survey with a broader audience to identify perceptions of the future of RSAs in the United States.
  
  
  RESULTS
  Most manufacturers and payers expressed interest in RSAs and see potential value in their use. Due to numerous barriers associated with outcomes-based agreements, stakeholders were more optimistic about financial-based RSAs. In the US private sector, however, there remains considerable interest--improved data systems and shifting incentives (via health reform and accountable care organizations) may generate more action.
  
  
  CONCLUSIONS
  In the US commercial payer markets, there is continued interest among some manufacturers and payers in outcomes-based RSAs. Despite continued discussion and activity, the number of new agreements is still small.
authors.affiliation: University of Washington School of Pharmacy, Box 357630, 1959 NE Pacific St, H-375A, Seattle, WA 98195. E-mail: lgarrisn@u.washington.edu.
authors.forename: Louis P
authors.initials: LP
authors.lastname: Garrison
authors.forename: Josh J
authors.initials: JJ
authors.lastname: Carlson
authors.forename: Preeti S
authors.initials: PS
authors.lastname: Bajaj
authors.forename: Adrian
authors.initials: A
authors.lastname: Towse
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Neumann
authors.forename: Sean D
authors.initials: SD
authors.lastname: Sullivan
authors.forename: Kimberly
authors.initials: K
authors.lastname: Westrich
authors.forename: Robert W
authors.initials: RW
authors.lastname: Dubois
mesh_terms: D003299:Cooperative Behavior; D004345:Drug Industry / Q000191:economics / Q000458:organization & administration*; D006801:Humans; D008329:Managed Care Programs / Q000191:economics / Q000458:organization & administration*; D017149:Private Sector / Q000191:economics / Q000458:organization & administration*; D012052:Reimbursement, Incentive / Q000458:organization & administration; D020414:Risk Sharing, Financial / Q000191:economics / Q000458:organization & administration*; D014481:United States