Number of orphan designations accepted in the U.S. 2003-2023

This statistic displays the number of accepted orphan designations per year in the United States from 2003 to 2023. In 2017, there were 477 orphan designations accepted, a record number so far. 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.

本统计数据显示了2003年至2023年美国每年接受的孤儿药物指定数量。在2017年，共有477个孤儿药物指定被接受，创下了迄今为止的最高记录。孤儿药物旨在针对罕见疾病或病症，在美国，这被定义为患者数量少于20万。目前，美国通过1983年颁布的孤儿药物法案来激励孤儿药物的研发。