Drug-coated balloon (Sequent Please Neo) vs drug-eluting stent treatment for acute ST-elevation myocardial infarction: a randomised trial

ISRCTN ISRCTN16341009
DOI https://doi.org/10.1186/ISRCTN16341009
IRAS number 356772
Secondary identifying numbers CPMS 68120
Submission date
15/07/2025
Registration date
15/07/2025
Last edited
11/08/2025
Recruitment status
Not yet 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
The rapid treatment of patients with an acute heart attack (ST-elevation myocardial infarction [STEMI]) is well established in terms of its significant benefits. This is done using coronary angiography, where a catheter is inserted (usually) through the wrist with local anaesthetic. The catheter is passed up to the heart and a balloon is inflated at the point of the blockage to reopen it. Once the artery is opened, two potential options are available for trying to keep that artery open in the long term. This involves either implanting a drug-eluting stent (DES) or inflating a drug-coated balloon (DCB) at the point of this blockage. Whilst DES have been used for many years, it is now recognised that a significant number (2-4% per year) re-narrow over time and the physical presence of the stent is likely to contribute to this process. Therefore, many operators now use a DCB, which coats the vessel with an anti-proliferative drug to prevent further narrowing but avoids the need for stent implantation. A direct comparison of these two approaches has not been performed. This study will examine the safety and efficacy of DCB versus DES in patients admitted to hospital with a STEMI. The study will use CE-marked DCB and DES devices. All devices used in this clinical investigation will be used in compliance with their approved Instructions for Use and in accordance with standard clinical practice. This study aims to determine if drug-coated balloon treatment of coronary artery blockages during a STEMI (heart attack) provides an equivalent outcome to treatment with a drug-eluting stents (DES). This will be measured by the 1-year target vessel failure, which is a composite of cardiac death, further clinically-driven treatment of the target vessel or a further myocardial infarction (heart attack) caused by the target vessel.

Who can participate?
Patients with a STEMI which requires emergent percutaneous coronary intervention (PCI)

What does the study involve?
Participants are randomly allocated to one of two groups. One group will receive drug-coated balloon (DCB) treatment and the other will receive drug-eluting stent (DES) treatment. All participants will receive appropriate medications before, during and after their treatment as per current guidelines and operator/hospital approach, and will be discharged according to hospital policies. No changes to their inpatient care are performed. Post-treatment investigations are as per current practice and guidelines, including blood sampling for troponin at 24 hours and assessment of left ventricular function with transthoracic echo before discharge. Written information regarding the study will be provided to the patient post-procedure and consent obtained for further participation before discharge from hospital, usually on day 1. Follow-up in-person examinations will be conducted in accordance with the usual practices of the participating hospital. Additional study-specific follow-ups will be conducted at 30 days, 1 year, 3 years, 5 years and 8 years via telephone and with a review of patient notes as required. During the follow-up telephone appointments, medical and medication history will be collected to assess if any endpoints or adverse events have occurred and the angina index will be assessed via a short questionnaire.

What are the possible benefits and risks of participating?
Both treatments offered are approved products for use within the UK. It is possible that there may be extra benefits to using the drug-coated balloon (DCB), but this will only be established by this study. The major potential benefit of DCB use during STEMI will be the lack of a permanent implant into the coronary vessel, potentially improving the long-term and very long-term clinical course by preventing the risk of stent re-stenosis. Additionally, DCB treatment can allow a shorter duration of antiplatelets, which would reduce the bleeding risk after a STEMI. Were a bypass ever to be indicated, the treated coronary segment could receive a graft, unlike a stented segment. There are no additional research risks.

Where is the study run from?
University Hospital Sussex NHS Foundation Trust (UK)

When is the study starting and how long is it expected to run for?
April 2025 to October 2034

Who is funding the study?
B. Braun Melsungen AG (Germany)

Who is the main contact?
Dr Scott Harfield, scott.harfield@nhs.net

Contact information

Dr Scott Harfield

University Hospitals Sussex NHS Trust
Brighton
BN2 5BE
United Kingdom

Phone +44 (0)127 369 6955
Email scott.harfield@nhs.net

Study information

Study designRandomized; Interventional; Design type: Treatment, Device, Complex Intervention
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleDrug-coated balloon (Sequent Please Neo) vs drug-eluting stent treatment for acute ST-elevation myocardial infarction: a randomised trial
Study acronymDCB STEMI
Study objectivesPrimary objectives:
The primary objective of this study is to determine if drug-coated balloon treatment of coronary artery blockages during an ST-segment elevation myocardial infarction (heart attack) provides an equivalent outcome to treatment with drug-eluting stents (DES). This will be measured by the 1-year target vessel failure, which is a composite of cardiac death, further clinically-driven treatment of the target vessel or a further myocardial infarction (heart attack) caused by the target vessel.

Secondary objectives:
To determine if there is a difference in the following factors between patients having drug-eluting stents (DES) or drug-coated balloons (DCB):
1. Pre-discharge LV function
2. Length of stay
3. Bleeding (BARC)
4. Non-cardiac death
5. Freedom from in-hospital composite of cardiovascular mortality, target vessel myocardial infarction, target vessel revascularisation, stroke and BARC 2/3/5 bleeding
6. Acute and subacute vessel closure/stent thrombosis
7. Contrast and radiation dose
8. Procedural time
9. Costs
10. Follow-up at 30 days, 1 year, 3 years and 5 years:
10.1. Target vessel failure
10.2. All-cause mortality
10.3. Non-cardiac mortality
10.4. Revascularisation of non-target vessel
10.5. Patient-oriented ARC-2 composite endpoint (all-cause mortality, any stroke, any MI, any revascularisation)
10.6. Symptom status
10.7. Bleeding event
10.8. Net-clinical benefit: freedom from target vessel failure and bleeding
11. Cost-effectiveness at 5 years
Ethics approval(s)

Not yet submitted, London – Brighton and Sussex REC (+44 (0)207 104 8140; brightonandsussex.rec@hra.nhs.uk)

Health condition(s) or problem(s) studiedAcute ST-elevation myocardial infarction
InterventionThe study is an investigator-initiated, prospective, open-label, randomised, non-inferiority study.

The study will be conducted across multiple primary angioplasty (heart attack) centres within the UK.

The target population for this study includes adult patients presenting with ST-segment elevation myocardial infarction requiring primary angioplasty treatment.

Pre-procedure examinations, including the collection of medical and medication history, assessment of angina index, and current medication, are conducted in accordance with routine practice.

Patients who are included as part of the emergency consent process will be randomized (1:1) to one of two groups. One group will receive Drug Coated Balloon (DCB) treatment and the other will receive Drug Eluting Stent (DES) treatment.

All participants will receive appropriate medications before, during and after their treatment as per current guidelines and operator/hospital approach, and will be discharged according to hospital policies. No changes to their inpatient care are performed.

Post-treatment investigations are as per current practice and guidelines, including blood sampling for troponin at 24 hours and assessment of left ventricular function with transthoracic echo prior to discharge.

Written information regarding the study will be provided to the patient post-procedure and consent obtained for further participation prior to discharge from hospital, usually on day 1.

Follow-up in-person examinations will be conducted in accordance with the usual practices of the participating hospital. Additional study-specific follow-ups will be conducted at 30 days, 1 year, 3 years, 5 years and 8 years via telephone and with a review of patient notes as required. During the follow-up telephone appointments, medical and medication history will be collected to assess if any endpoints or adverse events have occurred and the angina index will be assessed via a short questionnaire.

The primary endpoint will be examined as intention to treat.
Intervention typeProcedure/Surgery
Primary outcome measureTarget vessel failure measured using a composition of cardiac death, target vessel revascularisation and target vessel myocardial infarction at 1 year
Secondary outcome measures1. Pre-discharge LV function, measured using a transthoracic echo at pre-discharge
2. Length of stay, measured using hospital admission duration
3. Bleeding measured using the BARC scale during inpatient admission and follow-up
4. Non-cardiac death, measured using the death certificate and determining non-cardiac death during inpatient admission
5. Acute and subacute vessel closure/stent thrombosis, measured using an angiogram during the inpatient admission
6. Contrast and radiation dose, measured during the procedure
7. Procedural time, measured during the procedure

Measured at follow-up at 30 days, 1 year, 3 years and 5 years:
1. Target vessel failure and presence of reintervention, measured using a composition of cardiac death, target vessel revascularisation and target vessel myocardial infarction during follow-up
2. All-cause mortality measured using COD information on a death certificate
3. Non-cardiac mortality measured using COD information on a death certificate
4. Revascularisation of the non-target vessel measured using an angiogram and PCI to the non-target vessel
5. Net-clinical benefit: freedom from target vessel failure and bleeding measured using the BARC 3-5 bleeding scale
Overall study start date30/04/2025
Completion date01/10/2034

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participantsPlanned Sample Size: 700; UK Sample Size: 700
Key inclusion criteriaThis trial presents an all-comers design allowing broad inclusion and few exclusion criteria. Specifically, patients can be included if suffering from STEMI, which requires emergent percutaneous coronary intervention (PCI) via the primary angioplasty service. To meet the criteria of a STEMI, patients need to have:
1. Symptoms of myocardial ischemia lasting for ≥30 min
2. Definite ECG changes indicating STEMI: ST elevation of >0.1 mV in two contiguous limb leads or ≥0.2 mV in two contiguous precordial leads
Key exclusion criteria1. Prior PCI of the target vessel
2. Previous CABG
3. Recent (<2 months) history of significant bleeding
4. Cardiac arrest requiring intubation before PPCI
5. Known allergy or contraindication for aspirin, clopidogrel, prasugrel, fondaparinux and/or heparin
6. Life expectancy less than 12 months
Date of first enrolment01/10/2025
Date of final enrolment01/10/2027

Locations

Countries of recruitment

  • England
  • Scotland
  • United Kingdom
  • Wales

Study participating centres

University Hospitals Sussex NHS Foundation Trust
Worthing Hospital
Lyndhurst Road
Worthing
BN11 2DH
United Kingdom
Norfolk and Norwich University Hospitals NHS Foundation Trust
Colney Lane
Colney
Norwich
NR4 7UY
United Kingdom
University Hospitals Dorset NHS Foundation Trust
Management Offices
Poole Hospital
Longfleet Road
Poole
BH15 2JB
United Kingdom
Worcestershire Acute Hospitals NHS Trust
Worcestershire Royal Hospital
Charles Hastings Way
Worcester
WR5 1DD
United Kingdom
St George's Healthcare Nhst
Blackshaw Road
London
SW17 0QT
United Kingdom
Oxford University Hospitals NHS Foundation Trust
John Radcliffe Hospital
Headley Way
Headington
Oxford
OX3 9DU
United Kingdom
Sheffield Teaching Hospitals NHS Foundation Trust
Northern General Hospital
Herries Road
Sheffield
S5 7AU
United Kingdom
University Hospitals of North Midlands NHS Trust
Newcastle Road
Stoke-on-trent
ST4 6QG
United Kingdom
University Hospitals Bristol and Weston NHS Foundation Trust
Trust Headquarters
Marlborough Street
Bristol
BS1 3NU
United Kingdom
Manchester University NHS Foundation Trust
Cobbett House
Oxford Road
Manchester
M13 9WL
United Kingdom
Nottinghamshire Healthcare NHS Foundation Trust
The Resource, Trust Hq
Duncan Macmillan House
Porchester Road
Nottingham
NG3 6AA
United Kingdom
Greater Glasgow and Clyde
Gartnavel Royal Hospital
1055 Great Western Road
Glasgow
G12 0XH
United Kingdom
University Hospitals Birmingham NHS Foundation Trust
Queen Elizabeth Hospital
Mindelsohn Way
Edgbaston
Birmingham
B15 2GW
United Kingdom
Ashford and St Peter's Hospitals NHS Foundation Trust
St Peters Hospital
Guildford Road
Chertsey
KT16 0PZ
United Kingdom
Cwm Taf Morgannwg University Local Health Board
Dewi Sant Hospital
Albert Road
Pontypridd
CF37 1LB
United Kingdom

Sponsor information

University Hospitals Sussex NHS Foundation Trust
Hospital/treatment centre

Worthing Hospital
Lyndhurst Road
Worthing
BN11 2DH
England
United Kingdom

Website https://www.uhsussex.nhs.uk/
ROR logo "ROR" https://ror.org/03wvsyq85

Funders

Funder type

Industry

B. Braun Melsungen
Private sector organisation / For-profit companies (industry)
Alternative name(s)
B. Braun Melsungen AG
Location
Germany

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planNot provided at time of registration
IPD sharing planThe data-sharing plans for the current study are unknown and will be made available at a later date

Editorial Notes

11/08/2025: Internal review.
15/07/2025: Study's existence confirmed by the NIHR.