Drugs / ChAdOx-1-S[recombinant]
last change Aug 2025 re-read 9 days ago

ChAdOx-1-S[recombinant]

also known as ChAdOx1 nCOV-19

Vaccine

Developed for
COVID-19
Investigated by
University of Antwerp

Trials 1

20222023202420252026
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 41 trial
Phase 4 NCT06189040 May → Nov 2021 COVID-19 University of Antwerp Completed No outcome recorded
Comparator or background therapy2 trials
Phase 2 NCT04894435 Comparator May 2021 → Nov 2024 overdue COVID-19 Canadian Immunization Research Network Active not recruiting No outcome recorded
Phase 2/3 NCT05710783 Comparator Nov → Dec 2022 COVID-19 Laboratorio Avi-Mex, S.A. de C.V. Completed No outcome recorded

News releases announcing trial results or a regulatory action · 6

DateIssuerRelease
2023-04-14 AstraZeneca Results ECCMID data reinforces AstraZeneca’s commitment to transform protection for the most vulnerable by advancing science in vaccines and immune therapies astrazeneca.com ↗
Persistently high immunogenicity and between-country differences driven by hybrid immunity from primary-series AZD2816 or AZD1222 (ChAdOx1 nCoV-19) and Omicron infections
2022-11-01 AstraZeneca Regulatory Vaxzevria receives full Marketing Authorisation in the EU for the prevention of COVID-19 astrazeneca.com ↗
AstraZeneca's COVID-19 vaccine, Vaxzevria (ChAdOx1-S [Recombinant]), has been granted full Marketing Authorisation (MA) in the European Union (EU).
2022-05-23 AstraZeneca Regulatory Vaxzevria approved in the EU as third dose booster against COVID-19 astrazeneca.com ↗
AstraZeneca's COVID-19 vaccine, Vaxzevria (ChAdOx1-S [Recombinant]), has been granted approval in the European Union (EU) by the European Medicine Agency (EMA) as a third dose booster in adults.
2022-01-13 AstraZeneca Results New Vaxzevria data further support its use as third dose booster astrazeneca.com ↗
New data from ongoing trial showed increased antibody response against Beta, Delta, Alpha and Gamma variants following third dose booster with Vaxzevria
2021-12-23 AstraZeneca Results Vaxzevria significantly boosted antibody levels against Omicron astrazeneca.com ↗
AstraZeneca’s Vaxzevria (ChAdOx1-S [Recombinant]) significantly boosted levels of antibodies against the Omicron SARS-CoV-2 variant (B.1.1.529) following a third dose booster, according to data from a new laboratory study.
2021-05-21 AstraZeneca Regulatory AstraZeneca COVID-19 vaccine Vaxzevria authorised for emergency use in Japan astrazeneca.com ↗
AstraZeneca’s COVID-19 vaccine, Vaxzevria (ChAdOx1-S [Recombinant]) , formerly AZD1222, has been granted a special approval for emergency use in Japan for active immunisation of individuals aged 18 years and older, to prevent COVID-19 caused by SARS-CoV-2.

Evidence & citations 4 cited values

Every value below carries the sentence it was read from. 3 sources stand behind the page.

FieldValueCited text
Known as ChAdOx1-S [Recombinant] ClinicalTrials.gov intervention name — accepted as the source's own label NCT06189040 ↗
2

NCT05710783 ↗

NCT04894435 ↗

Known as ChAdOx1 nCOV-19 “The ChAdOx1 nCOV-19 (Astra-Zeneca) adenovirus-vectored vaccine is authorized to be given in two doses one month to 12 weeks apart.” NCT04894435 ↗
1

“Single dose IM administration of ChAdOx1 nCOV-19 (Astra-Zeneca) adenovirus-vectored vaccine” NCT05710783 ↗

Modality Vaccine “The ChAdOx1 nCOV-19 (Astra-Zeneca) adenovirus-vectored vaccine” NCT04894435 ↗
Route Intramuscular “ChAdOx1-S [recombinant] vaccine via intramuscular injection in the deltoid muscle” NCT04894435 ↗