Table 1.

Examples of HIV-related phrases from study eligibility criteria

CT.gov ID	Example text	Classification
NCT00393029	Seronegative for human immunodeficiency virus (HIV) antibody. (The experimental treatment being evaluated in this protocol depends on an intact immune system. Patients who are HIV seropositive can have decreased immune competence and thus be less responsive to the experiment and more susceptible to its toxicities.)	0: HIV-ineligible
NCT01143545	Patients with active infections, including HIV, will be excluded, due to unknown effects of the vaccine on lymphoid precursors.	0: HIV-ineligible
NCT01209520	Patients with HIV infection (but not AIDS) are eligible for this trial. Therefore, no HIV testing will be required.	2: HIV-eligible
NCT01434550	No history of human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS) or other immunosuppressive diseases.	0: HIV-ineligible
NCT02365207	Not be in an immunosuppressed state (eg, HIV+, use of chronic steroids >1 month).	0: HIV-ineligible
NCT02818283	[Inclusion Criteria] HIV-1 infection as documented by any licensed ELISA (enzyme-linked immunosorbent assay) test kit and confirmed by Western blot at any time prior to study entry. HIV-1 culture, HIV-1 antigen, plasma HIV-1 ribonucleic acid (RNA), or a second antibody test by a method other than ELISA is acceptable as an alternative confirmatory test.	2: HIV-eligible