ICH ICH Enumeration: ShortName=Trial Blinding Schema Response Terminology

M2 ESTRI Code List

ShortName = Trial Blinding Schema Response Terminology
LongName = Trial Blinding Schema Response Terminology
Version = 1.0
CanonicalUri = 2.16.840.1.113883.3.989.2.3.1.17
CanonicalVersionUri = 2.16.840.1.113883.3.989.2.3.1.17.1
Agency
ShortName = M11
LongName = Clinical Trial protocols
Identifier = C217051
code
Id="code"
(required)
Type="string"
english-label
Id="en"
(optional)
Type="string" Lang="en"
M11 Definition
Id="en_def"
(optional)
Type="string" Lang="en"
current flag
Id="cf"
(optional)
Type="string" Lang="en"
C15228 Double Blind A study in which neither the participant nor the study personnel interacting with the participant or data during the study knows what intervention a participant is receiving. y
C187674 Observer Blind A study in which the study personnel who measure, record, or assess the participant do not know which intervention the participant is receiving or, in the context of observational studies, do not know the external factors to which a participant has been exposed. y
C49659 Open Label A study in which participants and study personnel know which intervention each participant is receiving. y
C28233 Single Blind A study in which one party, either the participant or study personnel, does not know which intervention is administered to the participant. y

This file contains a code list co-maintained by ICH M2 ESTRI and CDISC in collaboration with the NCI Enterprise Vocabulary Services (EVS). It is encoded using OASIS genericode. More information on ICH technical standards is available via the M2 ESTRI webpages at www.ich.org.

Change History: v1.0 (November 11 2025)

Report created by ICH_M2_CDISC_Codelist.xsl : [Revision: 1.1 ] : ICH : Harmonisation for Better Health