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Updated: Jul 9, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
[Direct thrombin inhibition in interventional cardiology. The ACUITY trial]
1Vivantes Klinikum Neukölln, Kardiologie und konservative Intensivmedizin, Rudower Strasse 48, 12351 Berlin.
Insights
Bivalirudin alone, a direct thrombin inhibitor, proved comparable to heparin plus glycoprotein IIb/IIIa inhibitors for preventing ischaemic events in acute coronary syndrome patients. This regimen also significantly reduced bleeding complications.
Area of Science:
- Cardiovascular Medicine
- Pharmacology
- Clinical Trials
Context:
- Acute non-ST-segment elevation coronary syndrome (ACS) management.
- Evaluation of early invasive treatment strategies.
- Comparison of antithrombotic therapies.
Purpose:
- To compare the efficacy and safety of three therapeutic regimens in patients with ACS undergoing an early invasive strategy.
- To assess bivalirudin monotherapy against standard care (heparin plus glycoprotein IIb/IIIa inhibitor) and combination therapy (bivalirudin plus GPI).
Summary:
- The ACUITY Trial randomized 13,819 ACS patients to heparin plus GPI, bivalirudin plus GPI, or bivalirudin alone.
- Bivalirudin monotherapy demonstrated non-inferiority to heparin plus GPI regarding ischaemic event rates.
- A significantly lower rate of bleeding complications was observed with bivalirudin alone compared to heparin plus GPI.
Impact:
- Highlights bivalirudin's potential as a safer alternative in ACS treatment, particularly in reducing bleeding risks.
- Provides evidence supporting the use of bivalirudin monotherapy within an early invasive strategy for ACS.
- Informs clinical decision-making regarding antithrombotic selection for ACS patients.
Abstract:
The direct thrombin inhibitor bivalirudin was tested in the ACUITY Trial 13 819 patients with acute non-ST-segment elevation coronary syndrome in a prospective and randomized design. Three therapeutic regimens were compared in the context of an early invasive strategy: heparin plus glycoprotein IIb/IIIa inhibitor (GPI), bivalirudin plus GPI, or bivalirudin alone. Concerning the rate of ischaemic events bivalirudin alone was comparable to heparin plus GPI at a significantly lower rate of bleeding complications.
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