Table 2.

ClinicalTrials.gov-registered expanded access studies (n=228) with different missing data.

Data missing from the record	Number of studies, n (%)
Detailed descriptiona	126 (55.3)
Facility informationb	123 (54.0)
Central contact personb	95 (41.7)
Eligibility criteriac	40 (17.5)
Sex of patientsc	31 (13.6)
Expanded access typeb	11 (4.8)
Conditions or focus of studyc	7 (3.1)
Expanded access statusb	0 (0)
Responsible partyb	0 (0)
Name of the sponsorb	0 (0)
Brief summaryb	0 (0)
Intervention typeb	0 (0)
Intervention nameb	0 (0)
Patient age limitsc	0 (0)
Unique protocol identification numberb	0 (0)
Brief titleb	0 (0)
Record verification dateb	0 (0)
Responsible partyb	0 (0)

^aOptional data.

^bRequired data.

^cData conditionally required.