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 RDG approval. 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
15/07/2015	The impact of obesity on healthcare resource utilisation.
16/07/2015	Chief Medical Officer Annual Report
17/07/2015	To establish the causal roles of environmental factors on exacerbations of COPD
21/07/2015	Creation of a model of GP workload in terms of patient, practice and geographical variables to inform the GMS Contract Formula
23/07/2015	The effect of metformin on patient outcome after acute myocardial infarction
31/07/2015	Characterising the natural history and risk factors for the development of psoriatic arthritis in a UK population
05/08/2015	Use of COX-2 inhibitors and risk of glioma
07/08/2015	A drug utilisation cohort study of patients prescribed medicines from different classes of renin-angiotensin system blocking agents in UK primary care
12/08/2015	Mortality of people with learning disability
12/08/2015	Ethnicity and adherence to oral hypoglycaemic agents in T2DM
17/08/2015	Resource use associated with Idiopathic Pulmonary Fibrosis
17/08/2015	Alcohol misuse and injury outcomes in adolescents aged 10-24 using linked UK health data
18/08/2015	Risk of fragility fracture across inflammatory conditions: a UK population study
18/08/2015	Estimating the prevalence of myasthenia gravis and neuromyelitis optica through the Clinical Practice Research Datalink
28/08/2015	Characteristics of newly diagnosed adults with Type 1 diabetes in the UK and their evolution over the first 5 years
28/08/2015	Cluster Headache Patient Prevalence and Prescribed Treatments in the UK Clinical Practice Research Datalink
28/08/2015	Demographic and clinical characteristics of T2DM patients treated with DPP-4 and SGLT2 inhibitors in the absence of a current clinical guideline - A CPRD Study
01/09/2015	Medical resource use and costs associated with diabetes complications in the population of diabetes patients receiving insulin therapy in the United Kingdom
04/09/2015	Coronary Artery Disease in the Ageing Population of Adults with Congenital Heart Disease
04/09/2015	Time to treatment intensification and associated outcomes among patients with Type 2 diabetes mellitus in the UK