The development of personalised approaches to improve the prevention of cardiovascular disease

ISRCTN ISRCTN90062954
DOI https://doi.org/10.1186/ISRCTN90062954
IRAS number 285583
Secondary identifying numbers CPMS 46590, IRAS 285583
Submission date
29/10/2020
Registration date
31/03/2021
Last edited
18/08/2025
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Small blood cells called platelets help the blood to clot when we injure ourselves, but sometimes they form dangerous clots inside blood vessels that can cause heart attacks. People may be prescribed anti-platelet drugs that help to stop platelets from forming dangerous clots, but they do not work for everybody.
Researchers funded by the British Heart Foundation at the University of Reading have found that the way people’s platelets work varies, and these differences might make certain anti-platelet drugs more or less effective for some people. These differences might be particularly important for people with Type II Diabetes, who are at increased risk of heart attacks and other forms of cardiovascular disease.
To understand if anti-platelet treatment can be safer and more effective, this study will recruit diabetic and non-diabetic patients with or without ischemic heart disease willing to donate small blood samples. These samples will be used to identify differences in the way platelets work in diabetic and non-diabetic patients and test the effectiveness of antiplatelet drugs in a lab.
This information will help researchers and clinicians understand why heart disease is more common in diabetic patients, assist in the development of new treatments and guide the use of existing antiplatelet drugs to maximise their safety and effectiveness for individual patients.
The aims are to increase understanding of the impact and mechanisms of platelet function that lead to worse outcomes associated with metabolic dysfunction which is common in this patient group.

Who can participate?
Patients undergoing coronary angiography (a procedure that uses X-ray imaging to see your heart's blood vessels)

What does the study involve?
During the patient’s angiogram appointment, up to 50ml (Equivalent to 10tsp) of blood will be taken. We also collect body composition measurements such as height, weight, hip and waist circumference and body fat percentage. This will then be linked to measurements and results from tests using the patient’s blood with information taken from their NHS hospital records including the result of their angiogram.
As an optional part of the study, a small group of people will be requested to return for further blood sample analysis to ensure reproducibility. This is likely to be within 2 years of their angiogram appointment but may be up to 5 years after the start of the study.

What are the possible benefits and risks of participating?
No benefits but small additional risk in patients having blood taken

Where is the study run from?
The Royal Berkshire Hospital and the University of Reading (UK)

When is the study starting and how long is it expected to run for?
September 2020 to August 2025

Who is funding the study?
1. British Heart Foundation (UK)
2. University of Reading (UK)
3. National Institute for Health Research (NIHR) (UK)

Who is the main contact?
Dr Jonathan Gibbins, j.m.gibbins@reading.ac.uk

Contact information

Dr Jonathan Gibbins
Scientific

Institute for Cardiovascular and Metabolic Research
School of Biological Sciences
Harborne building
University of Reading
Whiteknights
Reading
RG6 6AS
United Kingdom

ORCiD logoORCID ID 0000-0002-0372-5352
Phone +44 (0)118 3787082
Email j.m.gibbins@reading.ac.uk

Study information

Study designObservational study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Hospital
Study typeScreening
Participant information sheet ISRCTN90062954_PIS_V2.3.docx
Scientific titleMulti-parameter analysis of platelet function: the impact of cardiometabolic disease
Study objectivesThis study expected to benefit patient care in a number of ways:
1. The establishment of personalised care pathways for specific patients, allowing patient stratification and therefore more effective therapy
2. Use of knowledge of how platelet function and regulation in obesity-related metabolic dysfunction to identify specific defects that may be targeted with new pharmacological strategies
3. The identification of new drug targets for these patients
Ethics approval(s)Approved 23/09/2020, North West - Greater Manchester South Research Ethics Committee (3rd Floor, Barlow House, 4 Minshull Street, Manchester, M1 3DZ, UK; +44 (0)207 104 8063; gmsouth.rec@hra.nhs.uk), ref: 20/NW/0364
Health condition(s) or problem(s) studiedIschaemic heart diseases, platelet function, diabetes mellitus
InterventionA total of 400 patients will be recruited for this study (100 for each group):
1. Control Cohort without diabetes
2. Control Cohort with diabetes
3. Patients with IHD and without diabetes
4. Patients with IHD and diabetes

We require up to 50 ml blood sample taken from venous and/or arterial access during their clinic appointment at the hospital. We predict 10% of study participants to be recalled for further analysis a maximum of two times. Recalled patients will have the choice of blood sampling at either the Hospital or the University. We may also take body composition measurements.

A small group of volunteers available throughout the length of the study will also be recruited in order to ensure the equipment and quality of the testing remains high. They will be recruited by the University and there is no need to access medical information about the volunteers.

We will also be performing molecular analysis on the samples of recalled patients to identify molecular differences in platelet function between the groups.

A number of tested will be performed to understand which stage/ stages during platelet activation are affected in patients with ischaemic heart disease and diabetes. The tests performed will be carried out in an order which will make best use of the blood samples taken from each individual participant.
Intervention typeOther
Primary outcome measurePlatelet function measured by aggregometry and flow cytometry at baseline and optionally at a second time point likely to be within 2 years of the angiogram appointment but may be up to 5 years after the start of the study
Secondary outcome measuresLevels of thrombus formation measured using confocal microscopy at baseline and optionally at a second time point likely to be within 2 years of the angiogram appointment but may be up to 5 years after the start of the study
Overall study start date01/09/2020
Completion date31/08/2025

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participantsPlanned Sample Size: 400; UK Sample Size: 400
Key inclusion criteriaUnder investigation for stable ischaemic heart disease and scheduled for coronary angiography as part of clinical care
Key exclusion criteria1. Acute Coronary Syndrome in the past 12 months
2. P2Y12 inhibitors (including clopidogrel, tricagreolor and prasugrel)
3. Treatment dose anti-coagulation, including warfarin or novel anti-coagulant drugs (NOACS)
4. Other metabolic dysfunction
5. Evidence of alcohol or drug misuse
6. Unable to give informed consent
7. Aged <18 years
8. Pregnancy
9. Active or recent malignancy (<2 years)
10. Any underlying haematological pathologies
11. Renal disease (eGFR <30)
12. Liver Cirrhosis
Date of first enrolment04/01/2021
Date of final enrolment28/02/2025

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

University of Reading
Institute of Cardiovascular and Metabolic Science
Harborne Building
Whiteknights Campus
Reading
RG6 6AS
United Kingdom
Royal Berkshire Hospital
Royal Berkshire NHS Foundation Trust
London Road
Reading
RG1 5AN
United Kingdom

Sponsor information

University of Reading
University/education

Whiteknights Campus
Reading
RG6 6AS
England
United Kingdom

Phone +44 (0)1183 787082
Email m.j.proven@reading.ac.uk
Website http://www.reading.ac.uk/
ROR logo "ROR" https://ror.org/05v62cm79

Funders

Funder type

Charity

British Heart Foundation
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
the_bhf, The British Heart Foundation, BHF
Location
United Kingdom
National Institute for Health Research (NIHR) (UK)
Government organisation / National government
Alternative name(s)
National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
Location
United Kingdom
University of Reading
Private sector organisation / Universities (academic only)
Alternative name(s)
UoR
Location
United Kingdom

Results and Publications

Intention to publish date01/08/2026
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe outcomes from this study will be published in leading research journals such as Blood, Circulation, JACC and Nature Medicine, and will be presented at national and international research conferences such as the European Society of Cardiology, American Heart Association, and the International Society on Thrombosis and Haemostasis.
IPD sharing planThe datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version V2.3 31/03/2021 No Yes
Protocol file version v2.1 14/12/2020 31/03/2021 No No
HRA research summary 28/06/2023 No No

Additional files

ISRCTN90062954_PROTOCOL_v2.1_14Dec2020.docx
Uploaded 31/03/2021
ISRCTN90062954_PIS_V2.3.docx
Uploaded 31/03/2021

Editorial Notes

18/08/2025: The completion date was changed from 03/08/2025 to 31/08/2025.
01/04/2021: Internal review.
31/03/2021: The participant information sheet has been uploaded. Uploaded protocol Version 2.1, 14 December 2020 (not peer reviewed).
29/10/2020: Trial’s existence confirmed by the National Institute for Health Research (UK)(NIHR).