1,077
Participants
Start Date
April 23, 2020
Primary Completion Date
February 5, 2025
Study Completion Date
February 5, 2025
ChAdOx1 nCoV-19
A single dose of 5x10\^10vp of ChAdOx1 nCoV-19
MenACWY
Standard single dose of MenACWY vaccine delivered intramuscularly
ChAdOx1 nCoV-19 full boost
A single dose of 5x10\^10vp of ChAdOx1 nCoV-19 followed by a boost dose of 5x10\^10vp of ChAdOx1 nCoV-19
ChAdOx1 nCoV-19 half boost
A single dose of 5x10\^10vp of ChAdOx1 nCoV-19 followed by a boost dose of 2.5x10\^10vp of ChAdOx1 nCoV-19
MenACWY boost
A standard dose of MenACWY followed by a boost dose of MenACWY
Paracetamol
1g every 6 hours for 24 hours
ChAdOx1 nCoV-19 0.5mL boost
A single dose of 5x10\^10vp of ChAdOx1 nCoV-19 followed by a boost dose of ChAdOx1 nCoV-19 0.5mL (3.5-6.5x10\^10vp)
ChAdOx1 nCoV-19 0.5mL (3.5-6.5x10^10vp) late vaccine (LV)
A dose of ChAdOx1 nCoV-19 0.5mL (3.5-6.5x10\^10vp) 9 months after receiving a single or double dose of 5x10\^10vp of ChAdOx1 nCoV-19
ChAdOx1 nCoV-19 0.5mL (3.5-6.5x10^10vp) late vaccine two (LVT)
A dose of ChAdOx1 nCoV-19 0.5mL (3.5-6.5x10\^10vp) 9 months after receiving a single or double dose of MenACWY, then a boost 4-12 weeks later
University Hospital Southampton NHS Foundation Trust, Southampton
University Hospitals Bristol and Weston NHS Foundation Trust, Bristol
St Georges University Hospital NHS Foundation Trust, London
Imperial College Healthcare NHS Trust, London
CCVTM, University of Oxford, Churchill Hospital, Oxford
John Radcliffe Hospital, Oxford
University of Oxford
OTHER