Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

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.

More ST-elevation Myocardial Infarction (STEMI) trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment660 (estimated)
SponsorPunjab Institute of Cardology
Academic / other
Locations2 sites (Lahore, Punjab Province and 1 other locations)
StatusRecruiting
StartedAugust 14, 2026
Main results expectedAugust 14, 2027
Study endsAugust 14, 2027
Registry record updatedOctober 27, 2026
Trial IDNCT07898696 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

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.