Release Date Request Code Change Type NCI Code CDISC Term Type CDISC Codelist (Short Name) CDISC Codelist (Long Name) Change Summary Original New Change Implementation Instructions 2018-06-29 CDISC-3202 Update C17998 CDISC Synonym NY No Yes Response Add new CDISC Synonym - - - UNK 2018-06-29 n/a Update C147144 CDISC Definition Randomization Type Response Randomization Type Response Update CDISC Definition A?type of randomization schema in which?each?subject has the same chance of being randomized into any one group as all other subjects. (NCI) A type of randomization schema in which each subject has the same chance of being randomized into any one group as all other subjects. (NCI) 2018-06-29 CDISC-3170 Add C16153 Term Study Design Attribute Terminology Study Design Attribute Terminology Add new term to existing codelist - - - Stratification Factor