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Subcutaneous Selatogrel Inhibits Platelet Aggregation in Patients With Acute Myocardial Infarction Management of two major complications in the cardiac catheterisation laboratory: the no-reflow phenomenon and coronary perforations Multivessel PCI Guided by FFR or Angiography for Myocardial Infarction Patterns of use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers among patients with acute myocardial infarction in China from 2001 to 2011: China PEACE-Retrospective AMI Study Complete Versus Culprit-Only Revascularization in STEMI: a Contemporary Review Effect of alirocumab on major adverse cardiovascular events according to renal function in patients with a recent acute coronary syndrome: prespecified analysis from the ODYSSEY OUTCOMES randomized clinical trial Classification of Deaths in Cardiovascular Outcomes Trials Known Unknowns and Unknown Unknowns No causal effects of plasma homocysteine levels on the risk of coronary heart disease or acute myocardial infarction: A Mendelian randomization study

Original ResearchVolume 75, Issue 20, May 2020

JOURNAL:JACC Article Link

Subcutaneous Selatogrel Inhibits Platelet Aggregation in Patients With Acute Myocardial Infarction

P Sinnaeve, G Fahrni, M Valgimigli et al. Keywords: ACS; AMI; NSTEMI; P2Y12; STEMI; subcutaneous

ABSTRACT

BACKGROUND - Oral P2Y12 receptor antagonists exhibit delayed onset of platelet inhibition in patients with acute myocardial infarction (AMI). Selatogrel is a potent, highly selective, and reversible P2Y12 receptor antagonist with a rapid onset and short duration of action.

 

OBJECTIVES - This study sought to assess inhibition of platelet aggregation following subcutaneous administration of selatogrel in patients with AMI.

 

METHODS - Patients with AMI were randomized to a single subcutaneous dose of selatogrel of 8 or 16 mg. The primary endpoint was response to treatment (P2Y12 reaction units <100; measured by VerifyNow) at 30 min post-dose. Safety was assessed up to 48 h post-injection.

 

RESULTS - Forty-seven patients received selatogrel 8 mg (n = 24) or 16 mg (n = 23) followed by ticagrelor (n = 43) or clopidogrel (n = 1). The proportion of responders 30 min post-dose was 91% (one-sided 97.5% confidence interval [CI]: 80% to 100%) and 96% (97.5% CI: 87% to 100%) with 8 and 16 mg, respectively (p values for responders >85% target; p = 0.142 and p = 0.009, respectively). Response rates were independent from type of AMI presentation, age, or sex. A similar response rate was observed at 15 min (8 mg: 75% [97.5% CI: 58% to 100%]; 16 mg: 91% [97.5% CI: 80% to 100%]), which was sustained at 60 min post-dose (8 mg: 75% [97.5% CI: 58% to 100%]; 16 mg: 96% [97.5% CI: 87% to 100%]). At 15 min, median P2Y12 reaction units was 51 (range: 4 to 208) for 8 mg and 9 (range: 2 to 175) for 16 mg. Selatogrel was well tolerated, without major bleeding complications.

 

CONCLUSIONS - Single-dose subcutaneous administration of selatogrel in patients with AMI was safe and induced a profound, rapid, and dose-related antiplatelet response. (A Medical Research Study to Evaluate the Effects of ACT-246475 in Adults With Heart Attack; NCT03487445, 2018-000765-36 [EudraCT])