Table 3.

Successful versus unsuccessful trials

Characteristic	Successful (N = 38)	Unsuccessful (N = 54)
Length of time from study open for recruitment to first patient enrolled—median [25th–75th percentile]	63 [22–143]	81 [25–236]
Feasibility assessment prior to trial initiation—n (%) yes	22 (58%)	29 (54%)
Was the restrictiveness of incl/excl criteria a barrier to recruitment—n (%) yes	17 (45%)	29 (54%)
Assessment of burden on participants—n (%) extensive	21 (55%)	25 (48%)
Direct contact PI/Co‐PI clinic population—N (%) yes	25 (66%)	32 (59%)
NIH funding vs. other—n (%) NIH funded	14 (37%)	16 (30%)
Used automated EMR search/notification—n (%) yes	7 (18%)	14 (26%)