This statistic displays the median length of time that orphan and non-orphan products are in phase III trial, as of 2015. Orphan drugs were in phase III trials for a median of 2.89 years. 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.
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Evaluate. (October 30, 2015). Median phase III trial length for orphan and non-orphan drugs as of 2015 (in years) [Graph]. In Statista. Retrieved July 08, 2025, from https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/
Evaluate. "Median phase III trial length for orphan and non-orphan drugs as of 2015 (in years)." Chart. October 30, 2015. Statista. Accessed July 08, 2025. https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/
Evaluate. (2015). Median phase III trial length for orphan and non-orphan drugs as of 2015 (in years). Statista. Statista Inc.. Accessed: July 08, 2025. https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/
Evaluate. "Median Phase Iii Trial Length for Orphan and Non-orphan Drugs as of 2015 (in Years)." Statista, Statista Inc., 30 Oct 2015, https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/
Evaluate, Median phase III trial length for orphan and non-orphan drugs as of 2015 (in years) Statista, https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/ (last visited July 08, 2025)
Median phase III trial length for orphan and non-orphan drugs as of 2015 (in years) [Graph], Evaluate, October 30, 2015. [Online]. Available: https://www.statista.com/statistics/373393/phase-iii-trial-length-for-orphan-and-non-orphan-drugs/