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Approved Studies

Please find below a list of all approved studies using OPCRD. Resultant publications will be added in due course as they become available

Redefining severe asthma to high-risk asthma: Analysis of real-world data ot investigate patients who are at high risk of exacerbations, worsening of symptoms, and a loss of asthma control over time.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

24 July 2023

ADEPT0523

Cardiopulmonary risk model for patients with chronic obstructive pulmonary disease.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

16 May 2023

ADEPT0223

Real-world use of Breztri/Trixeo for the management of COPD in a UK primary care population.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

30 March 2023

ADEPT0123

Impact of biologic initiation on steroid burden and new-onset of potentially related OCS related risks in patients with severe asthma (SOLAR).

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

13 January 2023

ADEPT1422

A retrospective observational study on effectiveness of influenza vaccine Supemtek compared to other vaccines in adults aged 18 years and above in the United Kingdom a feasibility study.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

OPEN Health

3 January 2023

ADEPT 1322

Determining the prevalence of severe asthma in children in UK primary care

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Respiratory Effectiveness Group (REG)

22 October 2022

ADEPT1122

Development and evaluation of clinical prediction models to estimate the risk of midgut
neuroendocrine tumours using statistical and machine learning approaches: an exploratory
study

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Mendelian Health

5 September 2022

ADEPT0822

Using Electronic Health Records (EHR) for the development of Personalised Hormonal Therapy

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Aveta Life

26 July 2022

ADEPT0622

Characteristics, Treatment and Healthcare Resource Utilisation in Patients Diagnosed with Neuropathic or Chronic Pain Using Primary Care Electronic Health Records in the United Kingdom

Approval Date:

Organisation: 

Organisation: 

Study Registration:

OPEN Health

4 July 2022

ADEPT0322

AFLOAT: Predicting the risk of Advanced non-alcoholic Fatty Liver Disease in cOmmunity patients with Abnormal Transaminases

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

29 June 2022

ADEPT0522

Drug utilisation and incident rates of adverse events in children with sialorrhoea who are treated with glycopyrronium

Approval Date:

Organisation: 

Organisation: 

Study Registration:

University of East Anglia (UEA)

6 June 2022

ADEPT1925

An exploratory study on epidemiological and genetic testing trends for retinitis pigmentosa and leber congenital amaurosis using primary care electronic records.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Mendelian Health

27 December 2021

ADEPT1923

The incidence of psychological comorbidities in paediatric and young adults with inflammatory bowel disease, and the impacts of mental health conditions on quality of life, disease severity and resource utilisation: a population-based cohort study in the UK

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Momentum Data

27 December 2021

ADEPT1922

Gallbladder pathology as an early sign of metachromatic leukodystrophy an exploratory study using electronic health records

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Mendelian Health

9 December 2021

ADEPT1821

A retrospective observational study on characteristics, treatment patterns, and healthcare resource use of patients with xerostomia in primary care settings using Optimum Patient Care Research Database in United Kingdom

Approval Date:

Organisation: 

Organisation: 

Study Registration:

OPEN Health

9 December 2021

ADEPT1921

Development of a predictive model algorithm to identify patients with hypophosphatasia, using Optimum Patient Care Record Database in United Kingdom

Approval Date:

Organisation: 

Organisation: 

Study Registration:

OPEN Health

15 November 2021

ADEPT1721

EffectIveness of bioloGics (by classes) in patieNts with dIfferent combination of T2 biomarkErs (IGNITE)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

8 November 2021

ADEPT1621

PhEnotypic Characteristics, coMorBidities and response to thErapeutic inteRventions associated with non-type 2 asthma (EMBER)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

3 November 2021

ADEPT1521

Clinical outcomes before and after biologic treatment by biologic class, by individual biologic, and by subgroups of baseline characteristics (LUMINANT)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

3 October 2021

ADEPT1421

A matched case control study to identify features associated with a group of rare diseases and examine the case identification accuracy of MendelScan, a rare disease case finding tool.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Mendelian Health

26 September 2021

ADEPT1221

PRagmatic EVAluation of a quality Improvement programme for people living with modifiable high-risk COPD (PREVAIL)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

20 September 2021

ADEPT1321

ImPact of comoRbidity In Severe asthMa patients (PRISM)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

15 September 2021

ADEPT1121

Biologic usage patterns, clinical outcomes and healthcare utilization (CLEAR)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

12 September 2021

ADEPT1021

Exploring differences in asthma disease severity and pathways: variation by ethnicity and socioeconomic status

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Queens University Belfast

17 August 2021

ADEPT0120

Deriving asthma subtypes from electronic health records using statistical learning

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Asthma UK Centre for Applied Research (AUKCAR)

16 August 2021

ADEPT0619

Patient characteristics, treatment patterns, clinical outcomes, and health care resource utilization in severe asthma subgroups: A retrospective analysis of the International Severe Asthma Registry

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

14 July 2021

ADEPT0821

Unexplored associations with inflammatory skin conditions: a population-based cohort study of the risk of skin cancer, venous thromboembolism, and mental health conditions in atopic dermatitis and vitiligo

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Momentum Data

14 July 2021

ADEPT0721

The prevalence of comorbidities in COPD patients, and their impact on health status and COPD symptoms in primary care patients: an UNLOCK study from the IPCRG

Approval Date:

Organisation: 

Organisation: 

Study Registration:

International Primary Care Respiratory Group (IPCRG)

20 June 2021

ADEPT0621

Patterns of Management of high-risk COPD in Primary Care, and Opportunities for optimising treatment in the United Kingdom 2000- 2019: Study Protocol

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

17 February 2021

ADEPT0221

Expert opinion on the impact of inhaler choice on climate change and personalised healthcare

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Respiratory Effectiveness Group (REG)

17 February 2021

ADEPT0321

Data Resource Profile: Optimum Patient Care Research Database (OPCRD)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG), Momentum Data

15 February 2021

ADEPT0121

Impact of Covid-19 using Platform C19: Describing a cohort of real-life patients during the Covid-19 pandemic and assessing the impact of Covid-19 and related behaviour on chronic conditions, and the effect of chronic conditions on Covid-19 outcomes.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

18 November 2020

ADEPT1720

Development of a prediction model to identify Pompe disease and Fabry disease, based on UK primary care electronic health records

Approval Date:

Organisation: 

Organisation: 

Study Registration:

OPEN Health

29 September 2020

ADEPT1320

Defining and Characterising Responders To Biologic TrEAtment In Severe AsthMa Patients (BEAM)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

29 September 2020

ADEPT1220

An observational cohort study to describe intermittent OCS utilisation and its association with adverse outcomes and healthcare resource use and costs in asthma using the OPCRD and CPRD databases.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

29 September 2020

ADEPT1120

Impact of COVID-19 on asthma exacerbations: protocol for a cohort study in primary care

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Asthma UK Centre for Applied Research (AUKCAR)

16 August 2020

ADEPT1020a

Comparative safety of extrafine beclometasone fixed dose combinations (FDC) and fluticasone FDC in COPD

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

26 July 2020

ADEPT0820

The comparative effectiveness across severe asthma biologic classes (Anti-IL5 versus Anti-IgE) in patients eligible for both therapies

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

26 July 2020

ADEPT0920

Asthma epidemiology, prevalence of asthma modifiable factors and healthcare utilisation due to asthma in England, Scotland, Wales, Northern Ireland and the UK

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Asthma UK Centre for Applied Research (AUKCAR)

21 July 2020

ADEPT0620

An observational evaluation of prescribing and safety of Glycopyrronium bromide for symptomatic treatment of severe sialorrhoea (drooling) in children with chronic neurological disorders

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

21 July 2020

ADEPT0720

Impact of Initiating Biologics in Patients Receiving Long-term OCS or Frequent Rescue Steroids versus Those Not Receiving Biologics

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

16 June 2020

ADEPT0420

Severe Asthma Super-Responders Delphi Exercise

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

3 February 2020

ADEPT0220

External validation of a clinical prediction model for the diagnosis of asthma in primary care

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Usher Institute, University of Edinburgh

3 February 2020

ADEPT0320

Eosinophilic asthma phenotypes and associated clinical outcomes

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

21 October 2019

ADEPT1919

A study on the Prescription Patterns of Short Acting Beta-2 Agonist (SABA) and its potential effects on asthma control: A Cross-Sectional Study on SABA use in Asthma

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Australia

1 October 2019

ADEPT1819

Longitudinal systemic corticosteroid utilization in the UK, 1990-2018 - An observational historical cohort study to describe the changes over time in drug utilization of systemic corticosteroids in 28 conditions in the OPCRD database.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

13 August 2019

ADEPT1719

IMP2ART Cluster Randomised Trial with a Nested Process Evaluation

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Asthma UK Centre for Applied Research (AUKCAR)

12 August 2019

ADEPT1619

Implications of ICS withdrawal in the real-life management of COPD

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Respiratory Effectiveness Group (REG)

6 August 2019

ADEPT1419

The Impact of Exacerbation Burden on Lung Function Trajectory in a Broad Asthma Population and Severe Asthma Population

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

30 July 2019

ADEPT1319

Onset of asthma in severe asthma patients

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

29 July 2019

ADEPT1219

Biologics in severe asthma: utilisation patterns, causes for discontinuation and switches

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

29 July 2019

ADEPT1119

Biomarker Relatability in the International Severe Asthma Registry (BRISAR)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

23 July 2019

ADEPT1019

Development of a prognostic tool using machine learning for asthma exacerbations in adolescents and adults in a retrospective cohort in primary care

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Asthma UK Centre for Applied Research (AUKCAR)

11 July 2019

ADEPT0919

Evaluation of patient characteristics, care pathways, prescribing patterns and costs across cancer types.

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

18 June 2019

ADEPT0819

A pragmatic, cluster randomized trial evaluating the impact of an enhanced adherence package (dual bronchodilator+add-on+app) on time to treatment failure and other clinical outcomes in exacerbating COPD patients with poor adherence to mono or dual therapy over one year

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

2 May 2019

ADEPT0719

Effectiveness of Dymista in asthma patients with rhinitis

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

8 April 2019

ADEPT0519

Effectiveness of Fostair (ICS/LABA) vs. dual bronchodilation (LABA/LAMA) in COPD (FELICITI Study)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

2 April 2019

ADEPT0419

Severe Asthma in Primary Care vs. ISAR Cohort

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

14 March 2019

ADEPT0319

Treatment pathways, healthcare resource utilization and associated costs in patients with ulcerative colitis

Approval Date:

Organisation: 

Organisation: 

Study Registration:

PH Associates

6 February 2019

ADEPT0219

Burden of cough in UK primary care

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Respiratory Effectiveness Group (REG)

7 January 2019

ADEPT0119

The Characterisation and Comparison of Eosinophilic and Non-eosinophilic Phenotypes of Severe Asthma

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

18 December 2018

ADEPT1418

Validation of the new GOLD 2017 classification scheme among patients with Chronic Obstructive Pulmonary Disease

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

31 October 2018

ADEPT0918

OPRI-1808: Dementia at Sea: a prevalence study in the United Kingdom

Approval Date:

Organisation: 

Organisation: 

Study Registration:

University of Plymouth, Observational & Pragmatic Research Institute (OPRI)

30 September 2018

ADEPT1318

Demographic and Clinical Characteristics of Severe Asthma Patients Worldwide

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

4 September 2018

ADEPT1218

An observational evaluation of the off-label prescribing and safety of glycopyrronium bromide (GLY) for symptomatic treatment of severe sialorrhoea (drooling) and/or hyperhidrosis (excessive sweating)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

2 September 2018

ADEPT1118

METNA RA Study

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI), OPEN Health

8 July 2018

ADEPT0518

OPC Questionnaire Item Reduction: An exploratory study with the aim of reducing item numbers while the shorter version continues to be predictive of future exacerbations

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

10 June 2018

ADEPT0418

British Lung Foundation (BLF) Asthma Management Project

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI), British Lung Foundation

7 May 2018

ADEPT1018

Real-life Characterisation of Patients with Active Asthma and Type 2 Asthma Comorbidities

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

23 April 2018

ADEPT0318

International Sever Asthma Registry (ISAR)

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Optimum Patient Care Global Limited (OPCG)

22 April 2018

ADEPT0218

ASSIST: A clinical interventional study into Airways disease case-fInding and 'at risk' case management

Approval Date:

Organisation: 

Organisation: 

Study Registration:

University of Southampton

14 March 2018

ADEPT0118

Addition of antibiotics to usual care management of asthma exacerbations: a real-life comparative effectiveness study

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI)

20 January 2016

ADEPT1519

Use of degarelix among patients with prostate cancer in daily practice

Approval Date:

Organisation: 

Organisation: 

Study Registration:

Observational & Pragmatic Research Institute (OPRI), OPEN Health

ADEPT0618

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