Nitrites in Acute Myocardial Infarction (NIAMI)
Acute ST Elevation Myocardial Infarction
About this trial
This is an interventional treatment trial for Acute ST Elevation Myocardial Infarction
Eligibility Criteria
Men aged ≥18 years, women aged ≥55 years, and women <55years who are sterilised, or have had a hysterectomy or have effective contraception and thus where there is no possibility of them being pregnant; presenting within 12 hours of the onset of chest pain who have ST segment elevation of more than 1mm elevation in limb leads or 2mm elevation in two contiguous chest leads or new left bundle branch block (LBBB) and for whom the clinical decision has been made to treat with primary PCI will be eligible for enrolment. Occlusion of the culprit related artery (TIMI grade 0 or TIMI grade 1) will also be required for inclusion. Eligible patients will be of North European descent.
Exclusion criteria
- Historical or ECG evidence of previous myocardial infarction
- Patients with prior coronary artery bypass grafting (CABG)
- Prior revascularization procedure where this procedure (PCI) was performed in the same territory as the current infarct
- Known or suspected pregnancy
- Contra-indications to MRI
- Patients with cardiac arrest or cardiogenic shock
- Patients with left main coronary occlusion
- Patients with known moderate to severe renal failure (estimated GFR < 30mls/min), or liver failure
- Patients with prior thrombolysis for this event
- Patients with such Left Main disease which after PCI of their culprit lesion (culprit lesions may be located in the LAD or LCx or RCA) are likely to require CABG within the time course of the study period (6 months).
Sites / Locations
- Aberdeen Royal Infirmary
- Brighton and Sussex University Hospitals NHS Trust
- St George's Healthcare NHS Trust
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
sodium nitrite
placebo
sterile solution containing 0.9%w/v sodium chloride in 5ml water injected intravenously over a period of 2½ - 5 minutes