Reducing slow-flow and no-reflow during STEMI with a high-dose intracoronary adenosine protocol
Official title: Reducing Slow/No-Reflow With Prophylactic High-Dose Intracoronary Adenosine Protocol in ST-Elevation Myocardial Infarction The REFLOW AMI Trial
Run by Punjab Institute of Cardology · NCT07898696 · Data updated 2026-11-12
In STEMI patients undergoing primary PCI, this trial tests whether giving a high-dose intracoronary adenosine before balloon or stent inflation can prevent slow-flow or no-reflow.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 660 (estimated) |
| Sponsor | Punjab Institute of Cardology Academic / other |
| Locations | 2 sites (Lahore, Punjab Province and 1 other locations) |
| Status | Recruiting |
| Started | August 14, 2026 |
| Main results expected | August 14, 2027 |
| Study ends | August 14, 2027 |
| Registry record updated | October 27, 2026 |
| Trial ID | NCT07898696 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 and older with STEMI undergoing planned primary PCI, without exclusions such as cardiogenic shock, severe hypotension, or adenosine hypersensitivity.
✕Probably not a fit
Patients with contraindications to adenosine or those who do not develop slow-flow or no-reflow despite the protocol may not experience a benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study explores a prophylactic protocol of 200 micrograms of intracoronary adenosine given before each balloon or stent inflation during primary PCI in STEMI patients. The goal is to see if the adenosine protocol reduces slow-flow or no-reflow and improves post-procedure blood flow by TIMI and myocardial blush grading. Outcomes include incidence of SNR, coronary perfusion, and safety in the setting of PPCI. Participants are adults with STEMI undergoing primary PCI, with exclusion criteria designed to minimize risk in those with cardiogenic shock, hypotension, bradycardia, allergy to adenosine, severe asthma/COPD, pregnancy, SCAD, MINOCA, or difficult-to-cross lesions. The study compares the adenosine protocol to standard PPCI care without prophylactic adenosine.
Why it matters
Potential benefit: If successful, the protocol could reduce heart muscle injury by decreasing slow-flow or no-reflow after PCI, potentially improving outcomes.
How similar studies have gone: Prior research in similar settings has explored intracoronary adenosine to improve microvascular perfusion, with mixed but informative results encouraging further study.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria; * 18 years and older of either gender * Diagnosis of STEMI * Undergoing primary PCI Exclusion Criteria: * Cardiogenic shock * Severe hypotension (SBP \<90 mmHg) * Bradycardia with HR \< 50 bpm without pacemaker * Known hypersensitivity to adenosine * Severe asthma or COPD with bronchospasm * Pregnancy * Spontaneous coronary artery dissection (SCAD) * Myocardial Infarction in non - obstructive coronaries (MINOCA) * Lesions unable to be crossed with coronary wire
Where it's running
-
Punjab institute of cardiology Lahore
Lahore, Punjab Province, Pakistan Recruiting -
Dow University of Health Sciences,Karachi
Karachi, Sindh, Pakistan Recruiting
Study contacts
- Principal investigator: Muzaffar Ali Zahidi, MBBS,FCPS Med,FCPS Cardiology — Punjab Institute of Cardiology Lahore
- Study coordinator: Muzaffar Ali Zahidi, MBBS,FCPS Med,FCPS Cardiology
- Email: muzcardio@gmail.com
- Phone: +923004358267
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.