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
Search for a project →-
Project #185: Investigating events following COVID-19
Research project run by University of Bristol.
COVID-19 -
Project #184: The incidence of herpes zoster in people with immune-mediated inflammatory diseases before, during, and after COVID-19
Service evaluation project run by King’s College London.
COVID-19 -
Project #183: Trends in Fluoroquinolone use and reported adverse events during the COVID-19 pandemic
Research project run by NHS North Bristol Trust, University of Bristol (ACF).
COVID-19 -
Project #182: Incidence of long-term conditions in England before and after the onset of the COVID-19 pandemic
Service evaluation project run by King's College London.
COVID-19 -
Project #181: Examining changes in ADHD diagnosis and pathways in primary care pre and post COVID pandemic
Service evaluation project run by NHS England.
COVID-19 -
Project #180: Effects of the COVID-19 Pandemic upon Sodium Valproate prescribing
Research project run by Department of Health and Social Care.
COVID-19 -
Project #179: Autoimmune diseases following COVID-19 vaccination
Research project run by University of Plymouth.
COVID-19 -
Project #178: Long-term complications after SARS-CoV-2 infection in relation to dialysis and kidney transplantation
Service evaluation project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #177: Effectiveness and safety of COVID-19 treatments for hospitalised patients
Research project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #176: Comparing Disparities in RSV, Influenza and Covid-19
Research project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #175: Implications of metformin for Long COVID
Research project run by University of Bristol.
COVID-19 -
Project #174: ECHO – Evaluation of Covid-19 vaccine Histories using OpenSAFELY
Service evaluation project run by University of Oxford.
COVID-19 -
Project #173: Analysis of the ‘Pharmacy First’ element in the plan to restore access to primary care following the impact of COVID-19
Service evaluation project run by University of Oxford.
COVID-19 -
Project #172: Impact and inequalities of winter pressures in primary care: providing the evidence base for mitigation strategies
Research project run by The London School of Hygiene and Tropical Medicine, University of Oxford and University of Bristol.
COVID-19 -
Project #171: Healthcare needs for people with chronic kidney disease in the COVID-19 era (Project continuation of approved project no 137)
Research, and service evaluation project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #170: Effectiveness of sotrovimab/molnupiravir use vs non-use (Project continuation of approved project no 115)
Research project run by London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #169: Long-term kidney outcomes after SARS-CoV-2 infection (Project continuation of approved project no 78)
Research project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #168: Digital access to primary care for older people during COVID (Project continuation of approved project no 152)
Research project run by University of Manchester and Newcastle University.
COVID-19 -
Project #167: Evaluating the UK ‘shielding’ policy during the COVID-19 pandemic (Project continuation of approved project no 150)
Research project run by London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #166: The impact of COVID-19 on pregnancy treatment pathways and outcomes (Project continuation of approved project no 148)
Research project run by The University of Manchester.
COVID-19 -
Project #165: Comparison of risk factors for hospitalizations and death from winter infections (Project continuation of approved project no 143)
Research project run by University of Bristol, University of Cambridge and University of Oxford.
COVID-19 -
Project #164: Risk factors for COVID-19 disease progression in immunocompromised populations (Project continuation of approved project no 139)
Research project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #163: Explaining the differential severity of COVID-19 between Indians in India and the UK (Project continuation of approved project no 101)
Research project run by London School of Hygiene & Tropical Medicine.
COVID-19 -
Project #162: Management of Early Inflammatory Arthritis during the COVID-19 Pandemic (Project continuation of approved project no 100)
Service evaluation project run by King's College London.
COVID-19 -
Project #161: COVID-19 Collateral (Project continuation of approved project no 95)
Research project run by The London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #160: Coverage, effectiveness and safety of neutralising monoclonal antibodies or antivirals for non-hospitalised patients with COVID-19 (Project continuation of approved project no 91)
Service evaluation project run by University of Oxford.
COVID-19 -
Project #159: Risk factors and prediction models for Long COVID (Project continuation of approved project no 31)
Research project run by University of Plymouth / University of Bristol.
COVID-19 -
Project #158: The effect of COVID-19 on pancreatic cancer diagnosis and care (Project continuation of approved project no 27)
Service evaluation project run by University of Surrey.
COVID-19 -
Project #157: Investigating the effectiveness of the COVID-19 vaccination programme in the UK (Project continuation of approved project no 22)
Research project run by University of Bristol.
COVID-19 -
Project #156: Investigating events following SARS-CoV-2 infection (Project continuation of approved project no 12)
Research project run by University of Bristol.
COVID-19