Temporal Concept
washout period
wash·out pe·ri·od
Definitions related to washout period:
  • (washout) A period of time during a clinical study when a participant is taken off of a study drug or other medication in order to eliminate the effects of the treatment.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • A period in a clinical study during which subjects receive no treatment for the indication under study and the effects of a previous treatment are eliminated (or assumed to be eliminated).
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • A period of time to allow one agent to clear the body before another agent can be safely introduced. Washout periods vary depending on the agents involved.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.