VariableName VariableLabel Type Role Note Core
STUDYID Study Identifier Char Identifier Unique identifier for a study. Req
DOMAIN Domain Abbreviation Char Identifier Two-character abbreviation for the domain. Req
USUBJID Unique Subject Identifier Char Identifier Identifier used to uniquely identify a subject across all studies for all applications or submissions involving the product. Req
RPSEQ Sequence Number Num Identifier Sequence number to ensure uniqueness of records within a dataset for a subject (or within a parameter, in the case of the Trial Summary domain). May be any valid number (including decimals) and does not have to start at 1. Req
RPGRPID Group ID Char Identifier Optional group identifier, used to link together a block of related records within a subject in a domain. Also used to link together a block of related records in the Trial Summary dataset. Perm
RPREFID Reference ID Char Identifier Optional internal or external identifier such as lab specimen ID, or UUID for an ECG waveform or a medical image. Perm
RPSPID Sponsor-Defined Identifier Char Identifier Sponsor-defined identifier. Example: pre-printed line identifier on a case report form. Perm
RPLNKID Link ID Char Identifier Identifier used to link related records across domains. This may be a one-to-one or a one-to-many relationship. Perm
RPLNKGRP Link Group ID Char Identifier Identifier used to link related records across domains. This will usually be a many-to-one relationship. Perm
RPTESTCD Short Name of Reproductive Test Char Topic Short character value for RPTEST used as a column name when converting a dataset from a vertical format to a horizontal format. The short value can be up to 8 characters. Examples: "CHILDPOT", "BCMETHOD", "MENARAGE". Req
RPTEST Name of Reproductive Test Char Synonym Qualifier Long name For RPTESTCD. Examples: "Childbearing Potential", "Birth Control Method", "Menarche Age". Req
RPCAT Category for Reproductive Test Char Grouping Qualifier Used to define a category of topic-variable values. Examples: "No use case to date, but values would be relative to reproduction tests grouping". Perm
RPSCAT Subcategory for Reproductive Test Char Grouping Qualifier Used to define a further categorization of RPCAT values. Example: "No use case to date, but values would be relative to reproduction tests grouping". Perm
RPORRES Result or Finding in Original Units Char Result Qualifier Result of the measurement or finding as originally received or collected. Examples: "120", "<1", "POS". Exp
RPORRESU Original Units Char Variable Qualifier Unit for RPORRES. Examples: "in", "LB", "kg/L". Perm
RPSTRESC Character Result/Finding in Std Format Char Result Qualifier Contains the result value for all findings, copied or derived from RPORRES in a standard format or in standard units. RPSTRESC should store all results or findings in character format; if results are numeric, they should also be stored Exp
        in numeric format in RPSTRESN. For example, if various tests have results "NONE", "NEG", and "NEGATIVE" in RPORRES, and these results effectively have the same meaning, they could be represented in standard format in RPSTRESC as "NEGATIVE".  
RPSTRESN Numeric Result/Finding in Standard Units Num Result Qualifier Used for continuous or numeric results or findings in standard format; copied in numeric format from RPSTRESC. RPSTRESN should store all numeric test results or findings. Perm
RPSTRESU Standard Units Char Variable Qualifier Standardized units used for RPSTRESC and RPSTRESN. Example: "mol/L". Perm
RPSTAT Completion Status Char Record Qualifier Used to indicate that a question was not asked or a test was not done, or a test was attempted but did not generate a result. Should be null or have a value of "NOT DONE". Perm
RPREASND Reason Not Done Char Record Qualifier Reason not done. Used in conjunction with RPSTAT when value is "NOT DONE". Perm
RPLOBXFL Last Observation Before Exposure Flag Char Record Qualifier Operationally-derived indicator used to identify the last non-missing value prior to RFXSTDTC. The value should be "Y" or null. Perm
RPBLFL Baseline Flag Char Record Qualifier Indicator used to identify a baseline value. Should be "Y" or null. Note that RPBLFL is retained for backward compatibility. The authoritative baseline for statistical analysis is in an ADaM dataset. Perm
RPDRVFL Derived Flag Char Record Qualifier Used to indicate a derived record. The value should be "Y" or null. Records which represent the average of other records or which do not come from the CRF are examples of records that would be derived for the submission datasets. If RPDRVFL = "Y", then RPORRES may be null, with RPSTRESC and (if numeric) RPSTRESN having the derived value. Perm
VISITNUM Visit Number Num Timing Clinical encounter number. Numeric version of VISIT, used for sorting. Exp
VISIT Visit Name Char Timing Protocol-defined description of a clinical encounter. Perm
VISITDY Planned Study Day of Visit Num Timing Planned study day of VISIT. Should be an integer. Perm
TAETORD Planned Order of Element within Arm Num Timing Number that gives the planned order of the Element within the Arm for the Element in which the assessment was made. Perm
EPOCH Epoch Char Timing Epoch associated with the date/time at which the assessment was made. Perm
RPDTC Date/Time of Collection Char Timing Collection date and time of an observation. Exp
RPDY Study Day of Visit/Collection/Exam Num Timing Actual study day of visit/collection/exam expressed in integer days relative to the sponsor-defined RFSTDTC in Demographics. Perm
RPDUR Duration Char Timing Collected duration of an event, intervention, or finding represented in ISO 8601 character format. Used only if collected on the CRF and not derived. Perm
RPTPT Planned Time Point Name Char Timing Text description of time when a measurement or observation should be taken as defined in the protocol. This may be represented as an elapsed time relative to a fixed reference point, such as time of last dose. Perm
RPTPTNUM Planned Time Point Number Num Timing Numeric version of planned time point used in sorting. Perm
RPELTM Planned Elapsed Time from Time Point Ref Char Timing Planned elapsed time in ISO 8601 character format relative to a planned fixed reference (RPTPTREF) such as "Previous Dose" or Perm
        Previous Meal. This variable is useful where there are repetitive measures. Not a clock time or a date/time variable, but an interval, represented as ISO duration.  
RPTPTREF Time Point Reference Char Timing Description of the fixed reference point referred to by RPELTM, RPTPTNUM, and RPTPT. Examples: "PREVIOUS DOSE", "PREVIOUS MEAL". Perm
RPRFTDTC Date/Time of Reference Time Point Char Timing Date/time for a fixed reference time point defined by RPTPTREF in ISO 8601 character format. Perm