vaccine was conducted at 85 centres involving 24,141 adults who were randomly assigned to receive two intramuscular injections of either the CoVLP AS03 vaccine or placebo 21 days apart.
The researchers noted that vaccine efficacy among adults who were 65 years or older could not be determined because of the limited enrollment of participants in this age group.
However, previous evidence suggests that the CoVLP AS03 vaccine-induced similar immune responses in both young and older adults.
However, in March this year, World Health Organization (WHO) rejected Medicago Inc's Covid vaccine due to its links to cigarette maker Philip Morris International Inc.