Assessing Ticagrelor Alone After Heart Attack Treatment

Safety of Ticagrelor Monotherapy After Primary Percutaneous Coronary Intervention for ST-elevation Myocardial Infarction and the Effect on Intramyocardial Haemorrhage

Not applicable Interventional Radboud University Medical Center · NCT05986968

This study is testing if taking ticagrelor alone for a year after a heart attack is safe and effective compared to taking it with aspirin.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorRadboud University Medical Center Academic / other
Locations5 sites (Alkmaar and 4 other locations)
Trial IDNCT05986968 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the safety of using ticagrelor alone for 12 months after a primary Percutaneous Coronary Intervention (PCI) in patients with ST elevation myocardial infarction (STEMI), compared to a combination of ticagrelor and aspirin. The study will monitor the incidence of ischemic events and the extent of intramyocardial hemorrhage (IMH) using Cardiac Magnetic Resonance imaging in the first week post-PCI. Additionally, clinical outcomes such as bleeding events and all-cause mortality will be assessed over a period of thirteen months. The primary focus is on the first three months following the intervention.

Who should consider this trial

Good fit: Ideal candidates include individuals diagnosed with STEMI who have successfully undergone PCI with a drug-eluting stent.

Not a fit: Patients with known allergies to the study medications, recent cardiac events, or those requiring concurrent anticoagulant therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a safer alternative treatment regimen for patients recovering from STEMI.

How similar studies have performed: Other studies have explored similar antiplatelet strategies, but this specific approach of omitting aspirin post-PCI is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Clinical and electrocardiographical diagnosis of STEMI
* Successful PCI (according to the treating physician) of the infarct-related vessel with a modern drug-eluting stent (DES)

Exclusion Criteria:

* Known allergy or contraindication for aspirin, ticagrelor or prasugrel.
* Previous PCI or MI less than 12 months ago
* Previous cardiac surgery
* Participation in another clinical cardiology study or study concerning platelet aggregation/ thrombosis. (unless the antithrombotic therapy prescribed in this other study will end due to clinical reasons (e.g. the STEMI))
* Pregnancy and breast feeding
* Concurrent use of oral anticoagulants (OAC)
* The periprocedural use of GPIIb/IIIa inhibitors
* Planned surgical intervention within 12 months of PCI
* Creatinine clearance \<30mL/min or dialysis
* PCI of stent thrombosis
* Suboptimal stent result as judged by the interventional cardiologist.
* Life expectancy shorter than 13 months.
* Contra-indications for MRI or unable to undergo MRI (only applicable for the CMR subgroup population).

Where this trial is running

Alkmaar and 4 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ST Elevation Myocardial Infarction
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.