HEADER RECORD*******LIBRARY HEADER RECORD!!!!!!!000000000000000000000000000000 SAS SAS SASLIB 9.4 X64_SR12 19MAY21:19:09:3119MAY21:19:09:31 HEADER RECORD*******MEMBER HEADER RECORD!!!!!!!000000000000000001600000000140 HEADER RECORD*******DSCRPTR HEADER RECORD!!!!!!!000000000000000000000000000000 SAS TA SASDATA 9.4 X64_SR12 19MAY21:19:09:3119MAY21:19:09:31 Trial Arms HEADER RECORD*******NAMESTR HEADER RECORD!!!!!!!000000001000000000000000000000 STUDYID Study Identifier DOMAIN Domain Abbreviation ARMCD Planned Arm Code ARM Description of Planned Arm TAETORD Planned Order of Element within Arm %ETCD Element Code -ELEMENT Description of Element 3-TABRANCHBranch P TATRANS Transition Rule }( EPOCH Epoch ~ HEADER RECORD*******OBS HEADER RECORD!!!!!!!000000000000000000000000000000 mRNA-1273-P301TAA mRNA-1273 ASCREENScreening Randomized to vaccine mRNA-1273 SCREENING mRNA-1273-P301TAA mRNA-1273 A V mRNA-1273 in blinded phase BLINDED TREATMENT mRNA-1273-P301TAA mRNA-1273 A0FUA Follow up in blinded phase Receive vaccine mRNA-1273 in open-label phase FOLLOW-UP BLINDED PHASE mRNA-1273-P301TAA mRNA-1273 A@VOL mRNA-1273 in open-label phase OPEN LABEL TREATMENT mRNA-1273-P301TAA mRNA-1273 APFUB Follow up in open-label phase FOLLOW-UP OPEN LABEL PHASE mRNA-1273-P301TAPLA Placebo ASCREENScreening Randomized to placebo SCREENING mRNA-1273-P301TAPLA Placebo A PBO Placebo in blinded phase BLINDED TREATMENT mRNA-1273-P301TAPLA Placebo A0FUA Follow up in blinded phase FOLLOW-UP BLINDED PHASE mRNA-1273-P301TAPLAAPlacebo-mRNA-1273ASCREENScreening Randomized to placebo SCREENING mRNA-1273-P301TAPLAAPlacebo-mRNA-1273A PBO Placebo in blinded phase BLINDED TREATMENT mRNA-1273-P301TAPLAAPlacebo-mRNA-1273A0FUA Follow up in blinded phase Receive vaccine mRNA-1273 in open-label phase FOLLOW-UP BLINDED PHASE mRNA-1273-P301TAPLAAPlacebo-mRNA-1273A@VOL mRNA-1273 in open-label phase OPEN LABEL TREATMENT mRNA-1273-P301TAPLAAPlacebo-mRNA-1273APFUB Follow up in open-label phase FOLLOW-UP OPEN LABEL PHASE