A sequence of characters used by the sponsor to uniquely identify the study.
2
DOMAIN
Domain Abbreviation
Char
Identifier
C49558
An abbreviation for a collection of observations, with a topic-specific commonality.
2-character abbreviation, which must be "AC".
3
ACSEQ
Sequence Number
Num
Identifier
Sequence number given to ensure uniqueness within a dataset. Allows inclusion of multiple records for the same ACPARMCD.
4
ACGRPID
Group ID
Char
Identifier
Used to tie together a group of related records.
5
ACPARMCD
Challenge Agent Parameter Short Name
Char
Topic
ACPARMCD (the companion to ACPARM) is limited to 8 characters and does not have special character restrictions. These values should be short for ease of use in programming, but it is not expected that ACPARMCD will need to serve as variable names.
6
ACPARM
Challenge Agent Parameter
Char
Synonym Qualifier
ACPARMCD
Term for the challenge agent characterization parameter. The value in ACPARM cannot be longer than 40 characters.
7
ACVAL
Parameter Value
Char
Result Qualifier
Value of ACPARM.
8
ACVALU
Parameter Units
Char
Variable Qualifier
ACVAL
Units for the value in ACVAL, if applicable.
9
ACVALNF
Parameter Null Flavor
Char
Result Qualifier
Null flavor for the value of ACPARM, to be populated if and only if ACVAL is null.
10
ACVALCD
Parameter Value Code
Char
Result Qualifier
This is the code of the term in ACVAL.
11
ACVCDREF
Name of the Reference Terminology
Char
Result Qualifier
The name of the reference terminology from which ACVALCD is taken.
"CDISC," "ISO 8601"
12
ACVCDVER
Version of the Reference Terminology
Char
Result Qualifier
The version number of the reference terminology cited in ACVCDREF, if applicable.