Created at	Source	Raw Value	Validated value
Dec. 12, 2020, 12:31 a.m.	usa	Assess the efficacy of the candidate ChAdOx1 nCoV-19 against COVID-19 in adults aged 18 years and older.;Assess the safety of the candidate vaccine ChAdOx1 nCoV-19 in adults	Assess the efficacy of the candidate ChAdOx1 nCoV-19 against COVID-19 in adults aged 18 years and older.;Assess the safety of the candidate vaccine ChAdOx1 nCoV-19 in adults
Oct. 26, 2020, 11:31 p.m.	usa	Assess the safety of the candidate vaccine ChAdOx1 nCoV-19 in adults and children;Assess the efficacy of the candidate ChAdOx1 nCoV-19 against COVID-19 in adults aged 18 years and older.	Assess the safety of the candidate vaccine ChAdOx1 nCoV-19 in adults and children;Assess the efficacy of the candidate ChAdOx1 nCoV-19 against COVID-19 in adults aged 18 years and older.