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
12/09/2016 Hearing problems in adults; mapping the patient pathway and burden recorded within the NHS.
14/09/2016 Trends in the prescription of oral anticoagulants in UK primary care (2009-2015)
22/09/2016 Metformin and the incidence of viral-induced cancers in patients with Type-2 diabetes
30/09/2016 Estimating the annual incidence of paediatric burns across the United Kingdom
04/10/2016 Optimal minimum length of treatment with buprenorphine: A European analysis of medically discontinued opioid dependent patients
11/10/2016 The relationship between prior antibiotic exposure and antibiotic "response failure" in children presenting with acute respiratory tract infections (RTI) in primary care: an observational cohort study
13/10/2016 Aclidinium Bromide Post-Authorisation Safety Study to Evaluate the Risk of Cardiovascular Endpoints: Mortality Study
13/10/2016 Oophorectomy and risk of primary liver cancer and fatty liver disease among women in the UK Clinical Practice Research Datalink
13/10/2016 Rates of cytomegalovirus among children with organ transplants
13/10/2016 Renal Outcomes with DPP-4 Inhibitors Compared with Sulfonylurea as Add-on to Metformin among Patients with Type 2 Diabetes Mellitus in the UK
14/10/2016 What are the long-term health outcomes in low birth weight and premature babies born with chronic lung disease who are discharged home on oxygen?
17/10/2016 Changes in lung function (FEV1) over time in a primary care COPD cohort
18/10/2016 Primary Care and Access To Surgical Treatment For Women With Urinary Incontinence
18/10/2016 Incidence, prevalence, mortality and health-service use among people with systemic sclerosis (scleroderma) in the UK Clinical Practice Research Datalink
18/10/2016 Clinical effectiveness of combining two drugs versus monotherapy as initial treatment strategy in hypertension - a matched cohort study in CPRD
18/10/2016 Impact of hospital admission upon patterns of primary care prescribing
18/10/2016 Use of novel regression discontinuity design to investigate safety of statins in the UK Clinical Practice Research Datalink
24/10/2016 Drug utilization study of dexamfetamine in European countries
24/10/2016 Trends in NHS prescribing of dual NRT (DNRT) and varenicline in pregnancy and effects on infants
28/10/2016 Annual Healthcare Resource Use and Costs for Eczema in Children: A Cost of Illness Study for the English NHS