A trial in which the research staff and the trial participant know the treatment that is assigned.
A type of clinical trial in which researchers and participants know who is taking the experimental drug or the treatment being given.
A clinical trial in which doctors and participants know which drug or vaccine is being administered.
a clinical trial in which the study doctor and the participant know which drug(s) or vaccine the study participant is receiving.
a study in which both researchers and participants know what drugs a person is taking and at what dose. Compare BLINDED.
A clinical trial in which doctors and participants know which treatment is being administered to which patients.
a clinical trial in which doctors and participants know which vaccine is being administered to all participants.
An open-label trial is a type of clinical trial in which both the researchers and participants know which treatment is being administered. This contrasts with single blind and double blind experimental designs, where participants are not aware of what treatment they are receiving (researchers are also unaware in a double blind trial). An open-label trial may still be randomized.