Table 3. Comparison of Planned vs Actual Trial Duration Among 1260 Randomized Clinical Trials Completed With Delays.

Duration status	Median (IQR)
	Industry sponsored	Non–industry sponsored	Total
Planned duration, mo	16.3 (10.1-29.4)	18.3 (12.2-28.4)	18.2 (11.2-28.4)
Actual duration, mo	27.4 (16.2-47.2)	35.5 (21.3-53.8)	34.5 (20.4-52.8)
Difference, mo	9.1 (3.7-19.3)	13.2 (5.8-25.3)	12.2 (5.1-24.3)
Difference, %	48.8 (23.4-88.0)	72.0 (31.9-148.2)	66.7 (30.1-135.8)