Abstract 23088: GLP-1 Loading During Percutaneous Coronary Intervention (GOLD PCI) trial

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Introduction: Glucagon-like peptide 1 (7-36) amide (GLP-1) is an incretin hormone, which has been shown to protect against non-lethal cardiac ischemia-reperfusion injury. We sought to investigate whether GLP-1 protected against PCI-induced myocardial infarction (PMI) and attenuate cardiac troponin I (cTnI) release after elective PCI.

Methods: A double-blind, randomised, placebo-control trial, stratified for diabetes mellitus, conducted in a single UK centre, administered an intravenous infusion of GLP-1 (1.2pmol/Kg/min) or saline to patients approximately 30-minutes before elective PCI. The primary endpoint was PMI defined as a cTnI elevation > 5xURL at 6-hours post-PCI. Secondary endpoints include, intra-procedural chest pain, TIMI flow and blush grade after PCI, rise in cTnI elevation and creatinine at 6-hours post-PCI and major adverse cardiovascular and cerebrovascular events (MACCE) at six months.

Results: A CONSORT diagram for the study is shown in Figure 1. Of the 192 patients randomized, 152 (79%) were male, mean age 68.1±8.9 years. Patient demographics were similar between the groups. There was no inter-group difference in the incidence of PMI: GLP-1 9 (9.8%) vs. saline 8 (8.3%), p=0.28. Median [IQR] cTnI elevation between the groups was also similar: GLP-1 20 [0-88.5] vs. saline 10 [0-58.5] ng/L, p=0.28. Renal function was not impaired at 6 hours. Δ Creatinine was not significantly different. (GLP-1 -2.78±9.04 vs. saline -1.75±8.74 μmol/L, p=0.73). Other secondary end-point data will be available at time of presentation.

Conclusion: GLP-1 did not confer cardioprotection against PMI after elective PCI, although the incidence of PMI in contemporary PCI is low.

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