Projects
This page shows the 209 projects that have been approved to run in OpenSAFELY.
Projects numbered 1-155 were approved during the COVID-19 pandemic under legal powers issued by the Secretary of State: Regulation 3(4) of the Health Service (Control of Patient Information) Regulations 2002 – COPI Regulations. Under this emergency legal power, the Type 1 Opt-out [archived here] (which a patient can register with their GP surgery to prevent their GP data from being shared outside the GP practice for planning or research purposes) was not required to be upheld for research and planning purposes in the pandemic. Therefore, for projects 1-155 a patient who had registered a Type 1 Opt-out could have had their GP health information used (anonymously) in these projects.
In June 2023, the legal basis for OpenSAFELY’s operation changed [archived here] from the emergency COPI Regulations to the COVID-19 Public Health Directions 2020. Under this Direction, the Type 1 Opt-out will be upheld for all new projects (after 155).
In June 2025, the government issued new Directions that make it possible to conduct research on any healthcare topic. As such, projects after number 205 are not confined to COVID-19 studies and cover a wide range of health topics.
OpenSAFELY Projects
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Project #125: What was the impact of the COVID-19 pandemic on medication reviews?
Service evaluation project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #124: Describing patterns of BMI recordings in primary care records
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #123: PINCER change detection
Audit project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #122: Opioid prescribing trends and changes during COVID-19
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #121: PHOSP
Research project run by University of Leeds.
COVID-19 -
Project #120: Long-term kidney outcomes following hospitalisation with Covid-19
Research project run by University of Oxford, London School of Hygiene and Tropical Medicine and University of Glasgow.
COVID-19 -
Project #119: The healthcare utilisation of people with long COVID
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #118: Expected Background Rates of Clinical Events in Immunocompromised Patients
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #117: Understanding and adjusting for bias in OpenSAFELY COVID testing data
Research project run by University of Oxford, London School of Hygiene and Tropical Medicine, and Office for National Statistics.
COVID-19 -
Project #116: Further analysis of DOAC prescribing for patients with mechanical heart valves
Service evaluation project run by NHS England and NHS Improvement.
COVID-19 -
Project #115: Effectiveness of sotrovimab/molnupiravir use vs non-use
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #114: Ethnicity Short Data Report
Short data report project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #113: Shared care monitoring: the impact of COVID-19 and factors associated with resilience
Research project run by Sunderland CCG, University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #112: The impacts of the coronavirus pandemic on rheumatoid arthritis care and non-COVID outcomes
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #111: OpenSAFELY Interactive PILOT
Service evaluation project run by NHS England and University of Oxford Medicine.
COVID-19 -
Project #110: COVID-19 vaccine coverage and effectiveness in chronic kidney disease patients
Service evaluation project run by University of Oxford, London School of Hygiene and Tropical Medicine and UK Kidney Association.
COVID-19 -
Project #108: Hepatitis in Children related to the pandemic
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #107: Evaluating the potential effects of statins on COVID-19 outcomes using regression discontinuity and instrumental variable approaches
Research project run by University of Bristol.
COVID-19 -
Project #106: Effectiveness and safety of sotrovimab and molnupiravir for prevention of severe COVID-19 outcomes
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #105: Antidepressant trends in those with Learning Disability and Autism and changes during Covid
Service evaluation project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #104: Predictors of asymptomatic versus symptomatic infection with SARS-CoV-2
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #103: Covid Symptom Study Biobank – Long Covid
Research project run by King’s College London.
COVID-19 -
Project #102: The impact of COVID-19 on prescribing of long-term and repeated antimicrobials in primary care to evaluate antimicrobial stewardship interventions
Service evaluation project run by UK Health Security Agency.
COVID-19 -
Project #101: Explaining the differential severity of COVID-19 between Indians in India and the UK
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #100: Management of Early Inflammatory Arthritis during the COVID-19 Pandemic
Service evaluation project run by King's College London.
COVID-19 -
Project #99: Suicide deaths after healthcare contact in primary care
Audit project run by NHS England and NHS Improvement.
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Project #97: Primary Care Covid Codes Study
Audit project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #96: Covid-19 related death over time
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #95: COVID-19 Collateral
Research project run by University of Oxford and London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #94: PostOpCovid
Research project run by University of Nottingham.
COVID-19