Defined term · Trial design and conduct
Open-label
A design in which assignment is known to participants and investigators. Objective endpoint measurement limits but does not eliminate the resulting risk, because co-intervention and retention may…
§1Open-label
§1.2Category
Trial design and conduct — Terms describing how a clinical study is constructed and run.
§1.3Related terms
- Blinding — The withholding of knowledge of assignment from participants, investigators, outcome assessors or analysts. The Institute records who was blinded rather than describing…
Compound Evidence Institute · CEI-GT-036 · https://compoundevidence.com/glossary/open-label/ · retrieved 30 July 2026