HEADER RECORD*******LIBRARY HEADER RECORD!!!!!!!000000000000000000000000000000 SAS SAS SASLIB 9.4 X64_SR12 18JUN21:06:47:2118JUN21:06:47:21 HEADER RECORD*******MEMBER HEADER RECORD!!!!!!!000000000000000001600000000140 HEADER RECORD*******DSCRPTR HEADER RECORD!!!!!!!000000000000000000000000000000 SAS TE SASDATA 9.4 X64_SR12 18JUN21:06:47:2118JUN21:06:47:21 Trial Elements HEADER RECORD*******NAMESTR HEADER RECORD!!!!!!!000000000700000000000000000000 STUDYID Study Identifier DOMAIN Domain Abbreviation ETCD Element Code (ELEMENT Description of Element dTESTRL Rule for Start of Element @FTEENRL Rule for End of Element ¤TEDUR Planned Duration of Element ê HEADER RECORD*******OBS HEADER RECORD!!!!!!!000000000000000000000000000000 mRNA-1273-P201TEFUPA Part A Follow up 28 days after last vaccination in blinded part Participant decision visit if agree to OL dose otherwise, End of study mRNA-1273-P201TEFUPB Part B Follow up 28 days after last vaccination in open-label part or decision visit if not receiving any vaccination180 days after last vaccination P152DmRNA-1273-P201TEFUPC Part C Follow up 28 days after last vaccination in Part C 180 days after last vaccination P152DmRNA-1273-P201TEOL-V-100Open-Label mRNA-1273 100 ug First dose of mRNA-1273 100 ug vaccination at Open Label part P28D mRNA-1273-P201TEOL-V-50 Open-Label mRNA-1273 50 ug First dose of mRNA-1273 50 ug vaccination at Open Label part P28D mRNA-1273-P201TEPBO Placebo First dose of placebo P28D mRNA-1273-P201TESCREEN Screening Informed consent 28 days after element start P28D mRNA-1273-P201TEV-100 mRNA-1273 100 ug First dose of mRNA-1273 100 ug vaccination P28D mRNA-1273-P201TEV351-20 Open-Label mRNA-1273.351 20 ug First dose of mRNA-1273.351 20 ug vaccination at Open Label part P28D mRNA-1273-P201TEV351-50 Open-Label mRNA-1273.351 50 ug First dose of mRNA-1273.351 50 ug vaccination at Open Label part P28D mRNA-1273-P201TEV-50 mRNA-1273 50 ug First dose of mRNA-1273 50 ug vaccination P28D mRNA-1273-P201TEVV351-50Open-Label mRNA-1273/mRNA-1273.351 50 ugFirst dose of mRNA-1273/mRNA-1273.351 50 ug vaccination at Open Label part P28D