Understanding why thrombolysis fails in heart attack patients

Predictors of Failed Thrombolysis in Acute ST-segment Elevation Myocardial Infarction

Observational Oslo University Hospital · NCT05347732

This study is trying to find out why some heart attack patients don't respond to a specific clot-busting treatment so that doctors can improve how they treat these patients in the future.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorOslo University Hospital Academic / other
Locations1 site (Oslo)
Trial IDNCT05347732 on ClinicalTrials.gov

What this trial studies

This observational study aims to identify the reasons behind the failure of thrombolytic treatment with tissue-plasminogen activator (t-PA) in patients experiencing acute ST-segment elevation myocardial infarction (STEMI). It will involve 200 STEMI patients who receive prehospital thrombolysis at Oslo University Hospital Ullevål. Blood samples will be collected upon hospital arrival to analyze biomarkers related to coagulation, fibrinolysis, and inflammation. The study will compare these biomarker levels between patients who experience successful and failed thrombolysis to improve risk stratification and treatment outcomes.

Who should consider this trial

Good fit: Ideal candidates for this study are STEMI patients over 18 years old who have received prehospital thrombolysis.

Not a fit: Patients who do not receive prehospital thrombolysis or are under 18 years old may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to better prediction of thrombolysis success, potentially improving treatment strategies for STEMI patients.

How similar studies have performed: While there have been studies on thrombolysis, this specific approach focusing on biomarkers in the context of STEMI is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

STEMI patients \> 18 years given prehospital thrombolysis.

Exclusion Criteria:

None.

Where this trial is running

Oslo

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 STEMI - ST Elevation Myocardial Infarction
Last reviewed 2026-06-15 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.