Freedom of Information request on The temporary authorisations of the Pfizer/BioNTech, Oxford/AstraZeneca and Moderna vaccines was done through an expedited rolling review.( FOI 21/871)
Published 27 April 2022
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6th August 2021 FOI 21/871
Dear
Thank you for your email.
The temporary authorisations of the Pfizer/BioNTech, Oxford/AstraZeneca and Moderna vaccines was done through an expedited rolling review. A ‘rolling review’ can be used to complete the assessment of a promising medicine or vaccine during a public health emergency in the shortest time possible. This is done as the packages of data become available from ongoing studies on a staggered basis. The temporary authorisation under Regulation 174 permits the supply of identified vaccine batches, based on the safety, quality and efficacy data submitted to MHRA. These authorisations do not constitute a marketing authorisation.
All vaccines are tested through three phases of clinical trials to ensure they meet the gold standard. Phase 1 trials are with a small group of people to make sure there are no safety concerns and determines the appropriate dosage for the best immune response. Phase 2 trials are conducted on a larger group of people to check the vaccine works consistently and that the immune response is sufficient. Phase 3 trials test the vaccines on thousands of people for scientists to assess if the vaccine is producing immunity that will prevent disease. Usually, these phases are run in sequence, but in an effort to find a safe and effective Covid-19 vaccine as quickly as possible, once safety has been ascertained through Phase 1, Phases 2 and 3 are being run in parallel. Extensive checks and balances are required at every stage of the development of a vaccine, and this is no different for a Covid-19 vaccine. No stages in the vaccine development processes were bypassed.
The temporary authorisations for use of the COVID-19 vaccines in the UK followed a rigorous scientific assessment of all the available evidence of quality, safety and effectiveness by the UK regulator, the Medicines and Healthcare products Regulatory Agency (MHRA). The MHRA expert scientists and clinicians reviewed data from the laboratory pre-clinical studies, clinical trials, manufacturing and quality controls, product sampling and testing of the final vaccine, and also considered the conditions for its safe supply and distribution. The decision was made with advice from the Commission on Human Medicines (CHM), the government’s independent expert scientific advisory body. Regarding the MHRA approval of the Pfizer/BioNTech and the Oxford/AstraZeneca COVID-19 vaccines, further information (including information for physicians and recipients of the vaccine, and Public Assessment Reports [PARs] for each vaccine) are available on the MHRA website. Links to these are provided below:
https://www.gov.uk/government/publications/regulatory-approval-of-covid-19-vaccine-astrazeneca
https://www.gov.uk/government/publications/regulatory-approval-of-covid-19-vaccine-moderna
Please note that a marketing authorisation was granted for the Pfizer/BioNTech vaccine (Comirnaty) following a European Commission (EC) decision on 21 December 2020 (PLGB 53632/0002). Further information is available on the European Medicines Agency (EMA) website, a link to this is provided below:
https://www.ema.europa.eu/en/medicines/human/EPAR/comirnaty
Please also note that a marketing authorisation was granted for the Moderna vaccine on 31 March 2021 following an EC Reliance Procedure (PLGB 53720/0002). Further information is available on the MHRA website and the EMA website, links to these are provided below:
https://www.gov.uk/government/publications/regulatory-approval-of-covid-19-vaccine-moderna
https://www.ema.europa.eu/en/medicines/human/EPAR/covid-19-vaccine-moderna
A marketing authorisation has been granted for the Janssen Covid-19 vaccine on 28 May 2021. Further information is available via the below link: https://www.gov.uk/government/publications/regulatory-approval-of-covid-19-vaccine-janssen
In addition, a marketing authorisation was granted for the Oxford/AstraZeneca vaccine on 24 June 2021 following an EC Reliance Procedure (PLGB 17901/0355). Further information is available on the MHRA website and the EMA website, links to these are provided below: https://www.gov.uk/government/publications/regulatory-approval-of-covid-19-vaccine-astrazeneca
https://www.ema.europa.eu/en/medicines/human/EPAR/vaxzevria-previously-covid-19-vaccine-astrazeneca
As with any vaccine or medicine, COVID-19 vaccines require continuous safety monitoring and that the benefits in protecting people against COVID-19 outweigh any side effects or potential risks. This is a process known as safety monitoring (pharmacovigilance). This ensures that any potential medium and long term safety issues are promptly and adequately evaluated. As part of our signal detection processes, all adverse reaction reports received are individually assessed and cumulative information reviewed at regular intervals. Be reassured that the MHRA is working in collaboration with partners in the health system to rapidly assess all available safety data in real time and communicate any emerging issues, as necessary.”
Regarding your specific questions, the estimated dates for the end of completion of the clinical trials are as follows:
AstraZeneca Phase I/II Estimated Study Completion Date: November 15, 2021 [https://clinicaltrials.gov/ct2/show/NCT04568031
AstraZeneca Phase III Estimated Study Completion Date: February 14, 2023 https://clinicaltrials.gov/ct2/show/NCT04516746
Pfizer/BioNTech PHASE 1/2/3, Estimated Study Completion Date: April 6, 2023 https://clinicaltrials.gov/ct2/show/NCT04368728
Moderna Phase 2a Estimated Study Completion Date: November 1, 2021 https://clinicaltrials.gov/ct2/show/NCT04405076
Moderna Phase 3 Estimated Study Completion Date: October 27, 2022 https://clinicaltrials.gov/ct2/show/NCT04470427
If you have a query about the information provided, please reply to this email
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Information Commissioner’s Office Wycliffe House Water Lane Wilmslow Cheshire SK9 5AF
Yours sincerely
MHRA Customer Service Centre
Medicines and Healthcare products Regulatory Agency 10 South Colonnade, Canary Wharf, London E14 4PU Telephone 0203 080 6000