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Comparison of Two Heart Medicines (Tirofiban and Nitroglycerin) to Improve Small Blood Vessel Blood Flow in Heart Attack Patients Undergoing Emergency Angioplasty

Comparative effect of Intracoronary Tirofiban versus Nitroglycerin on Index of Microcirculatory Resistance in patients undergoing primary Percutaneous Coronary Intervention for ST-elevation Myocardial Infarction - nil

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/02/103052
Enrollment
70
Registered
2026-02-05
Start date
Unknown
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Intracoronary Tirofiban: 70 STEMI patients over a duration of 18 months with IMR more than 31 after PCI will be divided into two groups after randomization. Group 1 will receive stat In

Sponsors

Govt Medical College and Hospital Chandigarh
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Adult men and women aged over 18 yr and less than 75 yr who present with STEMI within 12 hours of symptom onset and are hemodynamically stable. Patients will be eligible if they have symptoms consistent with myocardial ischemia (chest pain, dyspnea) for at least 20 minutes accompanied by definite ECG changes indicating STEMI as defined by ACC/AHA guidelines. 2. Successful reperfusion of infarct-related artery with restoration of epicardial flow. 3. Willing and able to comply with all study requirements, including treatment, assessment, and clinic visit attendances.

Exclusion criteria

Exclusion criteria: 1. Previous MI/PCI/coronary bypass grafting (CABG) in the culprit vessel. 2. Other distal residual lesions with more than 50 percent diameter stenosis in the culprit vessel. 3. Presence of contraindications to study drugs. 4. Presence of contraindications to adenosine infusion for IMR measurement, including sinus node disease, moderate to severe bronchospastic disease, and second or third-degree atrioventricular (AV) block 5. Active malignancy 6. Concurrent illness, including severe infection that may jeopardize the ability of the patient to undergo the procedures outlined in this protocol, with reasonable safety 7. Serious medical or psychiatric conditions 8. Pregnancy or lactation (At time of PCI) 9. Patients who received GpIIb/IIIa treatment prior to IMR measurement. 10. Patients who do not undergo primary PCI due to the lack of severity of the culprit lesion or other reasons, like cardiogenic shock requiring mechanical circulatory support.

Design outcomes

Primary

MeasureTime frame
Change in IMR after Intracoronary Tirofiban versus Intracoronary Nitroglycerin among patients with IMR more than 31Timepoint: At baseline, 5 minutes after intracoronary drug administration

Secondary

MeasureTime frame
1.To correlate IVUS lesion morphology with IMR and angiographic slow-flow/no-reflow in STEMI patients undergoing Primary PCI to study predictors of MVO. 2. To correlate IMR with TIMI flow, Myocardial blush grade (MBG), & ST-segment resolution 2 hours post PCI 3. To evaluate in-hospital & short-term clinical outcomes at 30 days (Major Adverse Cardiovascular Events & change in Left Ventricle Ejection Fraction)Timepoint: IVUS will be done before stenting. TIMI flow & Myocardial Blush Grade will be done during the index procedure. ECG will be done 2 hours after PCI. Clinical outcomes (MACE & 2D-ECHO) will be assessed in the hospital & at 30 days

Countries

India

Contacts

Public ContactDeepanshu

Govt. Medical College and Hospital, Sector 32, Chandigarh

jeetramkashyap@yahoo.com6283643929

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Mar 14, 2026