
Leading orphan drugs in development based on net present value 2024
This statistic displays a projection of the top five orphan R&D products (phase III/filed) ranked by net present value as of February 2024. Vertex' VX-121 had a net present value of 5.8 billion U.S. dollars. Orphan drugs are used to target rare diseases or disorders, which in the United States is defined as less than 200,000 patients. The development of orphan drugs are currently incentivized in the United States through the Orphan Drug Act of 1983.