Clinical trial NCT03507309: NIHR CV Health Informatics Collaborative
Official title: National Institute for Health Research (NIHR) Cardiovascular Health Informatics Collaborative
Study type: OBSERVATIONAL
Overall status: ACTIVE_NOT_RECRUITING
Conditions: Troponin
Age
Mortality
Acute Coronary Syndrome
Lead sponsor: Imperial College London
Sponsor class: OTHER
Collaborators: name: Guy's and St Thomas' NHS Foundation Trust
name: King's College Hospital NHS Trust
name: Oxford University Hospitals NHS Trust
name: University College London Hospitals
name: University Hospital Southampton NHS Foundation Trust
name: University Hospitals, Leicester
name: University Hospitals Bristol and Weston NHS Foundation Trust
name: Manchester University NHS Foundation Trust
name: University Hospital Birmingham NHS Foundation Trust
name: The Leeds Teaching Hospitals NHS Trust
name: Blackpool Teaching Hospitals NHS Foundation Trust
First posted: 2018-04-25
Enrollment: 257948
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All patients with electronic records at collaborating hospitals.

Brief summary: The National Institute for Health Research (NIHR) Cardiovascular Health Informatics Collaborative is an observational, multi-centre and longitudinal study of clinical data from collaborating hospitals. A dataset of the longitudinal record for patients who presented with a suspected acute coronary syndrome, characterised by the request of a troponin test, has been developed (NHIC-Troponin Study).

Detailed description: The NHIC Cardiovascular Project in the United Kingdom was established to enable the sharing and repurposing of routinely captured clinical data for re-use in research. Data sharing for this study has been enabled by establishing a data sharing agreement between each of the collaborating hospitals. The data sharing agreement allows data to be shared between National Health Service (NHS) hospitals in accordance with an anonymisation and de-identification profile approved by each information governance department, ensuring that patient identities are protected. Ethics approval for each dataset has been obtained which detailed the further de-identification steps to ensure that research datasets are fully anonymised.

The cardiovascular theme clinical leads developed a standard target data model specification to capture the longitudinal record for patients who presented with a suspected acute coronary syndrome, characterised by the request of a troponin test (NHIC-Troponin Study). The data model was patient centric allowing for minor discrepancies between dataset areas such as missing discharges or test results returning outside of episodes of care. The model included 156 data points, grouped into demographics, cardiovascular risk factors, emergency department attendance and inpatient episodes, biochemistry, revascularisation and mortality. All patients were followed up on the NHS Spine Application, Summary Care Record until death or censoring on 1st April 2017.

This dataset comprised all patients who had a troponin measured at each of the five major academic centres between 2010 (2008 for University College Hospital) and 2017. The investigators identified a total of 257948 patient records who underwent troponin testing during the study period.

A Committee of Experts validates the protocol methodology and supervises the data management. A Steering Committee oversees study proposals including hypotheses, study design and statistical analyses including planned outcome measures.

Eligibility criteria: Inclusion Criteria:

* All patients presenting to one of the collaborating hospitals.

Exclusion Criteria:

* Nil

Primary outcomes:
measure: Mortality, All-cause
timeFrame: Hospital admission to 3 years follow-up
Secondary outcomes:
measure: Acute Revascularisation
timeFrame: 3 months follow-up
Other outcomes:
Locations:
Study officials:
affiliation: Imperial College London
name: Jamil Mayet
role: PRINCIPAL_INVESTIGATOR
References:
citation: Kaura A, Hartley A, Panoulas V, Glampson B, Shah ASV, Davies J, Mulla A, Woods K, Omigie J, Shah AD, Thursz MR, Elliott P, Hemmingway H, Williams B, Asselbergs FW, O'Sullivan M, Lord GM, Trickey A, Sterne JA, Haskard DO, Melikian N, Francis DP, Koenig W, Shah AM, Kharbanda R, Perera D, Patel RS, Channon KM, Mayet J, Khamis R. Mortality risk prediction of high-sensitivity C-reactive protein in suspected acute coronary syndrome: A cohort study. PLoS Med. 2022 Feb 22;19(2):e1003911. doi: 10.1371/journal.pmed.1003911. eCollection 2022 Feb.
citation: Kaura A, Panoulas V, Glampson B, Davies J, Mulla A, Woods K, Omigie J, Shah AD, Channon KM, Weber JN, Thursz MR, Elliott P, Hemingway H, Williams B, Asselbergs FW, O'Sullivan M, Kharbanda R, Lord GM, Melikian N, Patel RS, Perera D, Shah AM, Francis DP, Mayet J. Association of troponin level and age with mortality in 250 000 patients: cohort study across five UK acute care centres. BMJ. 2019 Nov 20;367:l6055. doi: 10.1136/bmj.l6055.