Approved studies using CPRD Data

Access to CPRD data, including UK Primary Care Data, and linked data such as Hospital Episode Statistics, is subject to protocol approval via CPRD’s Research Data Governance (RDG) Process. Independent scientific and patient advice is provided by Expert Review Committees (ERCs) and the Central Advisory Committee (CAC). 

A summary of all approved protocols, including a lay and technical summary of the proposed research, is published three months after researchers have access to the data to begin their study. COVID-19 research protocols are being fast-tracked and all approved summaries are published within 72 hours to ensure transparency and to help avoid unnecessary duplication. 

Protocols below are listed in order of date of approval. Please click on the study title for more details. 

Peer-reviewed publications from research using CPRD data will be listed on our bibliography page


Date of Approval Title
23/06/2020 The prevalent new-user design for cohort studies with no active comparator: The example of statins and cancer
18/06/2020 Risk factors and outcomes of COVID-19 in individuals with Down syndrome
17/06/2020 Area, maternal and child determinants of MMR uptake
12/06/2020 Assessing factors associated with the COVID-19 risk in people with asthma
09/06/2020 Exploring the role of electronic Frailty Index (eFI) using routine primary care electronic health care records data to predict hospitalization and mortality in older patients with type 2 diabetes
09/06/2020 Risk factors for and long-term outcomes in people with covid-19 admitted to hospital in England
02/06/2020 Clinical contact with health services for mental illness and self-harm before, during and after the COVID-19 pandemic
28/05/2020 A qualitative questionnaire based study exploring attitudes, beliefs and experiences of patients and healthcare professionals, in relation to short-acting beta-2-agonist and inhaled corticosteroid prescription and adherence
28/05/2020 Surgical interventions to treat severe pressure sores - The SIPS study
28/05/2020 Glycaemic Control in Type 2 Diabetes Patients after Switching from Basal-Bolus Treatment to Biphasic Insulin Aspart 30/70: a Descriptive Study
28/05/2020 Trend and mechanism of socioeconomic disparity in infant mortality
19/05/2020 Early Life Antibiotic Exposure and Incident Chronic Diseases in Childhood
19/05/2020 Prevalence, patient characteristics and treatment patterns of adult Atopic Dermatitis in UK primary care
15/05/2020 Diagnosis and management of infectious disease in primary care during the COVID-19 lockdown: changes in antibacterial and antiviral use
11/05/2020 Risk of cardiovascular and related diseases in asthma patients and bronchodilator users in the UK
05/05/2020 The association between amoxicillin exposure in infancy and the development of asthma in later childhood in the UK: A retrospective cohort study using Clinical Practice Research Datalink
05/05/2020 Antimicrobial stewardship during the COVID-19 epidemic. Cohort study
05/05/2020 Consultations for non-specific symptoms commonly reported with COVID-19 and other acute respiratory infections in the Clinical Practice Research Datalink: long term trends and patient characteristics
28/04/2020 Utilisation and safety of Glycopyrronium Bromide (GPB) oral solution for the treatment of sialorrhoea in children <18 years in the UK
27/04/2020 Underlying conditions in coronavirus (COVID-19) infection: definition, prevalence, mortality and understanding risk