The document outlines the agenda for a pre-conference seminar on payer perspectives regarding orphan drugs to be held from April 20-22, 2016 at the Washington Hilton in DC. The seminar will include presentations from representatives of CMS, Medicaid Health Plans of America, Aetna, NICE, HAS, and research institutions on national and international orphan drug coverage policies, challenges assessing orphan drugs, and approaches to funding and reimbursement. Panel discussions will address US and European payer perspectives, the use of real-world data for orphan drugs, rare diseases in Eastern Europe, and Australia's approach to orphan drug reimbursement through the Pharmaceutical Benefits Scheme. The seminar aims to provide insights into payer requirements and processes