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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

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Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

nonrandomized clinical trial

(non-RAN-duh-mized KLIH-nih-kul TRY-ul)
A clinical trial in which the participants are not assigned by chance to different treatment groups. Participants may choose which group they want to be in, or they may be assigned to the groups by the researchers.
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