This is a first-in-human, open-label, dose escalation, phase I clinical trial to assess the safety and immunogenicity of the candidate ChAdOx1 biEBOV vaccine in healthy UK volunteers aged 18-55. The vaccine will be administered intramuscularly (IM).~Volunteers will be recruited and vaccinated at the Centre for Clinical Vaccinology and Tropical Medicine (CCVTM), Oxford. There will be 3 study groups and it is anticipated that a total of 26 volunteers will be enrolled. Dose escalation and sentinel participant procedures will be implemented. Volunteers will be first recruited into Group 1 and subsequently into Groups 2 and 3 following interim clinical safety reviews. Volunteers will be sequentially allocated to a study group by selecting eligible volunteers for enrolment following screening. Sequential allocation will occur based on the order in which volunteers are enrolled.
An open-label, non-randomised, dose escalation, first-in-human, single centre, phase I clinical trial to determine the safety and immunogenicity of a bivalent ChAdOx1 vectored vaccine against Zaire and Sudan Ebola virus species in healthy adult volunteers.