open-label
/ˌō-pən-ˈlā-bəl/ (ame, mw)
open-label — adjective
1. used to describe a medical study in which both the doctors running it and the pa
used to describe a medical study in which both the doctors running it and the patients taking part know which drug or treatment each patient is being given.
Dr. Élise enrolled twenty patients in an open-label study of the new asthma inhaler.
attributive: open-label + study
The hospital ran an open-label trial because hiding the drug name from the nurses was not practical.
common collocation: open-label trial
After the placebo phase ended, Caleb's group moved into an open-label extension and received the real medicine.
Researchers in Taipei chose an open-label design so that doctors could adjust the dose for each patient.
The new cancer pill was first tested in a small open-label study before larger blinded trials began.
- unblinded
near-synonym; technical term highlighting the absence of blinding
- non-blinded
more transparent compound; used in some clinical-research style guides
- double-blind
neither researcher nor patient knows the assigned treatment
- single-blind
only one side (usually the patient) is kept unaware
- blinded
general antonym covering both single- and double-blind designs
文法句型
open-label + trial / study / extension
用法筆記
Almost always used before a noun such as 'trial', 'study', 'design', or 'extension'. Contrasts with 'blinded' and 'double-blind' studies, where one or both sides do not know which treatment is being given.