Research Activity
parallel study
par·al·lel stud·y
Definitions related to parallel study:
  • (parallel) Participants are assigned to one of two or more treatment groups in parallel for the duration of the study.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • A type of clinical study in which subjects are assigned to one of two treatment arms at the beginning of the trial and continue in that arm throughout the length of the trial. Study subjects are only exposed to the treatment that is assigned to the particular study arm they are enrolled in.
    NCI
    U.S. National Cancer Institute, 2021
  • (parallel trial) Subjects are randomized to one of two or more differing treatment groups (usually investigational product and placebo) and usually receive the assigned treatment during the entire trial.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
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