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Curry BJ, Rikken AOFS, Gibson CM, Granger CB, van 't Hof AWJ, Ten Berg JM, Jennings LK. Comparison of the effects of the GPIIb-IIIa antagonist Zalunfiban and the P2Y12 antagonist Selatogrel on Platelet Aggregation. J Thromb Thrombolysis 2023; 56:499-510. [PMID: 37563502 PMCID: PMC10550877 DOI: 10.1007/s11239-023-02867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/08/2023] [Indexed: 08/12/2023]
Abstract
Understanding the pharmacodynamic effects of platelet inhibitors is standard for developing more effective antithrombotic therapies. An example is the antithrombotic treatment of acute coronary syndrome (ACS), in particular ST-elevated myocardial infarction (STEMI) patients who are in need for rapid acting strong antithrombotic therapy despite the use of aspirin and oral P2Y12-inhibitors. In this study, we evaluated two injectable platelet inhibitors under clinical development (the P2Y12 antagonist selatogrel and the GPIIb-IIIa antagonist zalunfiban) that may be amenable to pre-hospital treatment of STEMI patients. Platelet reactivity was assessed at inhibitor concentrations that represent clinically relevant levels of platelet inhibition (IC20-50%, 1/2Cmax, and Cmax). Light transmission aggregometry (LTA), was used to evaluate the initial rate of aggregation (primary slope, PS) and maximal aggregation (MA). Both adenosine diphosphate (ADP) and thrombin receptor agonist peptide (TRAP) were used as agonists. Zalunfiban demonstrated similar inhibition of platelet aggregation when blood was collected in PPACK or TSC, whereas selatogrel demonstrated greater inhibition in PPACK. In this study, using PPACK anticoagulant, selatogrel and zalunfiban affected PS in response to ADP equivalently at all drug concentrations tested. In contrast, zalunfiban had significantly greater potency at its Cmax concentration compared to selatogrel using TRAP as agonist. Upon evaluation of MA responses at lower doses, selatogrel had greater inhibition of MA in response to ADP than zalunfiban; however, at concentrations that represent Cmax, the drugs were equivalent. Zalunfiban also had greater inhibition of MA in response to TRAP at the Cmax dose. These data suggest that zalunfiban may provide greater protection in reducing thrombus formation than selatogrel, especially since thrombin is an early, key primary agonist in the pathophysiology of thrombotic events.
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Affiliation(s)
| | - A O F Sem Rikken
- St. Antonius Hospital, Nieuwegein, The Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
| | | | | | - Arnoud W J van 't Hof
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
- MUMC+, Maastricht, The Netherlands
- Department of Cardiology, Zuyderland Medical Centre, Heerlen, The Netherlands
| | - Jurriën M Ten Berg
- St. Antonius Hospital, Nieuwegein, The Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
- MUMC+, Maastricht, The Netherlands
| | - Lisa K Jennings
- MLM Medical Labs, 140 Collins Street, Memphis, TN, 38117, USA.
- University of Tennessee Health Science Center, Memphis, TN, USA.
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Rikken SAOF, Bor WL, Selvarajah A, Zheng KL, Hack AP, Gibson CM, Granger CB, Bentur OS, Coller BS, van 't Hof AWJ, Ten Berg JM. Prepercutaneous coronary intervention Zalunfiban dose-response relationship to target vessel blood flow at initial angiogram in st-elevation myocardial infarction - A post hoc analysis of the cel-02 phase IIa study. Am Heart J 2023; 262:75-82. [PMID: 37088164 PMCID: PMC10630984 DOI: 10.1016/j.ahj.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Zalunfiban (RUC-4) is a novel, subcutaneously administered glycoprotein IIb/IIIa inhibitor (GPI) designed for prehospital treatment to initiate reperfusion in the infarct-related artery (IRA) before primary percutaneous coronary intervention in patients with ST-elevation myocardial infarction (STEMI). Since GPIs have been reported to rapidly reperfuse IRAs, we assessed whether there was a dose-dependent relationship between zalunfiban treatment and angiographic reperfusion indices and thrombus grade of the IRA at initial angiogram in patients with STEMI. METHODS This was a post hoc analysis from the open-label Phase IIa study that investigated the pharmacodynamics, pharmacokinetics, and tolerability of three doses of zalunfiban - 0.075, 0.090 and 0.110 mg/kg - in STEMI patients. This analysis explored dose-dependent associations between zalunfiban and three angiographic indices of the IRA, namely coronary and myocardial blood flow and thrombus burden. Zalunfiban was administered in the cardiac catheterization laboratory prior to vascular access, ∼10 to 15 minutes before the initial angiogram. All angiographic data were analyzed by a blinded, independent, core laboratory. RESULTS Twentyfour out of 27 STEMI patients were evaluable for angiographic analysis (0.075 mg/kg [n=7], 0.090 mg/kg [n=9], and 0.110 mg/kg [n=8]). TIMI flow grade 2 or 3 was seen in 1/7 patients receiving zalunfiban at 0.075 mg/kg, in 6/9 patients receiving 0.090 mg/kg, and in 7/8 patients receiving 0.110 mg/kg (ptrend = 0.004). A similar trend was observed based on TIMI flow grade 3. Myocardial perfusion was also related to zalunfiban dose (ptrend = 0.005) as reflected by more frequent TIMI myocardial perfusion grade 3. Consistent with the dose-dependent trends in greater coronary and myocardial perfusion, TIMI thrombus ≥4 grade was inversely related to zalunfiban dose (ptrend = 0.02). CONCLUSION This post hoc analysis found that higher doses of zalunfiban administered in the cardiac catheterization lab prior to vascular access were associated with greater coronary and myocardial perfusion, and lower thrombus burden at initial angiogram in patients with STEMI undergoing primary percutaneous coronary intervention.
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Affiliation(s)
- Sem A O F Rikken
- St. Antonius Hospital, Nieuwegein, The Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
| | - Willem L Bor
- St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Abi Selvarajah
- Department of Cardiology, Isala Heart Center, Zwolle, The Netherlands
| | - Kai L Zheng
- St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Amy P Hack
- St. Antonius Hospital, Nieuwegein, The Netherlands
| | | | | | - Ohad S Bentur
- Rockefeller University, Allen and Frances Adler Laboratory of Blood and Vascular Biology, New York, NY
| | - Barry S Coller
- Rockefeller University, Allen and Frances Adler Laboratory of Blood and Vascular Biology, New York, NY
| | - Arnoud W J van 't Hof
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands; Department of Cardiology, MUMC+, Maastricht, The Netherlands; Department of Cardiology, Zuyderland Medical Centre, Heerlen, The Netherlands
| | - Jurriën M Ten Berg
- St. Antonius Hospital, Nieuwegein, The Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands; Department of Cardiology, MUMC+, Maastricht, The Netherlands
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3
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Rikken SAOF, Selvarajah A, Hermanides RS, Coller BS, Gibson CM, Granger CB, Lapostolle F, Postma S, van de Wetering H, van Vliet RCW, Montalescot G, Ten Berg JM, van 't Hof AWJ. Prehospital treatment with zalunfiban (RUC-4) in patients with ST- elevation myocardial infarction undergoing primary percutaneous coronary intervention: Rationale and design of the CELEBRATE trial. Am Heart J 2023; 258:119-128. [PMID: 36592878 DOI: 10.1016/j.ahj.2022.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/21/2022] [Accepted: 12/17/2022] [Indexed: 05/11/2023]
Abstract
BACKGROUND Early and complete restoration of target vessel patency in ST-elevation myocardial infarction (STEMI) is associated with improved outcomes. Oral P2Y12 inhibitors have failed to demonstrate either improved patency or reduced mortality when administered in the prehospital setting. Thus, there is a need for antiplatelet agents that achieve prompt and potent platelet inhibition, and that restore patency in the prehospital setting. Zalunfiban, a novel subcutaneously administered glycoprotein IIb/IIIa inhibitor designed for prehospital administration, has shown to achieve rapid, high-grade platelet inhibition that exceeds that of P2Y12 inhibitors. Whether prehospital administration of zalunfiban can improve clinical outcome is unknown. HYPOTHESIS The present study is designed to assess the hypothesis that a single, prehospital injection of zalunfiban given in the ambulance, in addition to standard-of-care in patients with STEMI with intent to undergo primary percutaneous coronary intervention (PCI) will improve clinical outcome compared to standard-of-care with placebo. STUDY DESIGN The ongoing CELEBRATE trial (NCT04825743) is a phase 3, randomized, double-blinded, placebo-controlled, international trial. Patients with STEMI intended to undergo primary PCI will receive treatment with a single subcutaneous injection containing either zalunfiban dose 1 (0.110 mg/kg), zalunfiban dose 2 (0.130 mg/kg) or placebo, and the study drug will be administered in the ambulance before transportation to the hospital. A target of 2499 patients will be randomly assigned to one of the treatment groups in a 1:1:1 ratio, ie, to have approximately 833 evaluable patients per group. The primary efficacy outcome is a ranked 7-point scale on clinical outcomes. The primary safety outcome is severe or life-threatening bleeding according to the Global Use of Strategies to Open Occluded Coronary Arteries (GUSTO) criteria. SUMMARY The CELEBRATE trial will assess whether a single prehospital subcutaneous injection of zalunfiban in addition to standard-of-care in patients with STEMI with intent to undergo primary PCI will result in improved clinical outcome.
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Affiliation(s)
- Sem A O F Rikken
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands; Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Abi Selvarajah
- Department of Cardiology, Isala Hospital, Zwolle, The Netherlands
| | | | - Barry S Coller
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, New York, NY, United States of America
| | - C Michael Gibson
- Boston Clinical Research Institute, Boston, MA, United States of America
| | - Christopher B Granger
- Department of Cardiology, Duke University School of Medicine, Durham, NC, United States of America
| | | | | | - Henri van de Wetering
- Diagram Research, Zwolle, The Netherlands; Regional Emergency Medical Service Ijsselland, The Netherlands
| | | | - Gilles Montalescot
- Sorbonne Université, ACTION Study Group, Department of Cardiology, Hôpital Pitié-Salpêtrière (AP-HP), Paris, France
| | - Jurriën M Ten Berg
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands; Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands; Department of Cardiology, University Medical Center Maastricht, Maastricht, The Netherlands
| | - Arnoud W J van 't Hof
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands; Department of Cardiology, Zuyderland Hospital, Heerlen, The Netherlands; Department of Cardiology, University Medical Center Maastricht, Maastricht, The Netherlands.
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Rikken SAOF, Storey RF, Andreotti F, Clemmensen P, Ten Berg JM. Parenteral Antiplatelet Drugs in ST-Elevation Myocardial Infarction: Current Status and Future Directions. Thromb Haemost 2023; 123:150-158. [PMID: 36075236 DOI: 10.1055/s-0042-1753479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Oral inhibitors of the platelet P2Y12 receptor are indispensable in the treatment of ST-elevation myocardial infarction (STEMI), improving outcomes and even reducing mortality in some studies. However, these drugs are limited by delayed absorption and suboptimal platelet inhibition at the time of primary percutaneous coronary intervention. Despite efforts to achieve faster and more sustained platelet inhibition, strategies such as prehospital administration, higher loading doses, and crushed formulations have not led to improved coronary reperfusion. Parenteral glycoprotein IIb/IIIa inhibitors act sooner and are more potent than oral P2Y12 inhibitors, but their use has been limited by the increased risk of major bleeding and thrombocytopenia. Hence, there is a clinical need to refine drugs that deliver rapid, effective, yet safe platelet inhibition in the setting of STEMI. Novel parenteral antiplatelet drugs, such as cangrelor, selatogrel, and zalunfiban, have been recently developed to achieve rapid, potent antiplatelet effects while preserving hemostasis. We provide a description of currently available parenteral antiplatelet agents and of those in clinical development for prehospital administration in STEMI patients.
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Affiliation(s)
- Sem A O F Rikken
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands.,School for Cardiovascular Diseases, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Robert F Storey
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Felicita Andreotti
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Peter Clemmensen
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Medicine, Nykøbing F Hospital, Nykøbing Falster, Denmark
| | - Jurriën M Ten Berg
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands.,School for Cardiovascular Diseases, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
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5
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Dziewierz A, Zdzierak B, Malinowski KP, Siudak Z, Zasada W, Tokarek T, Zabojszcz M, Dolecka-Ślusarczyk M, Dudek D, Bartuś S, Surdacki A, Rakowski T. Diabetes Mellitus Is Still a Strong Predictor of Periprocedural Outcomes of Primary Percutaneous Coronary Interventions in Patients Presenting with ST-Segment Elevation Myocardial Infarction (from the ORPKI Polish National Registry). J Clin Med 2022; 11:jcm11216284. [PMID: 36362512 PMCID: PMC9657628 DOI: 10.3390/jcm11216284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/16/2022] Open
Abstract
The impact of diabetes mellitus (DM) on outcomes of patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) was confirmed by several studies. However, it is unclear whether this effect is still present in large groups of unselected patients undergoing up-to-date treatment. Thus, we sought to assess the impact of DM on periprocedural outcomes of primary PCI in STEMI using data from the Polish National Registry of PCI. Data on 150,782 STEMI patients undergoing primary PCI were collected. Of them, 26,360 (17.5%) patients had DM. Patients with DM were higher-risk individuals who experienced longer reperfusion delays and were less likely to have closed infarct-related artery at baseline (TIMI 0 + 1 flow: 73.2% vs. 72.0%; p < 0.0001) and achieve optimal reperfusion after PCI (TIMI 3 flow: 91.8% vs. 88.5%; p < 0.0001). The periprocedural mortality (1.1% vs. 1.9%; p < 0.0001) was higher in patients with DM and DM was identified as an independent predictor of periprocedural death. In conclusion, despite continuous progress in STEMI treatment, DM remains a strong predictor of periprocedural mortality. However, this detrimental effect of DM may be partially explained by the overall higher risk profile of diabetic patients.
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Affiliation(s)
- Artur Dziewierz
- 2nd Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
| | - Barbara Zdzierak
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
| | - Krzysztof P. Malinowski
- Department of Bioinformatics and Telemedicine, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Digital Medicine & Robotics Center, Jagiellonian University Medical College, 31-008 Krakow, Poland
| | - Zbigniew Siudak
- Collegium Medicum, Jan Kochanowski University, 25-369 Kielce, Poland
| | - Wojciech Zasada
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
| | - Tomasz Tokarek
- Center for Invasive Cardiology, Electrotherapy and Angiology, 33-300 Nowy Sacz, Poland
- Center for Innovative Medical Education, Jagiellonian University Medical College, 30-688 Krakow, Poland
| | - Michał Zabojszcz
- Collegium Medicum, Jan Kochanowski University, 25-369 Kielce, Poland
| | | | - Dariusz Dudek
- 2nd Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Digital Medicine & Robotics Center, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Center for Invasive Cardiology, Electrotherapy and Angiology, 33-300 Nowy Sacz, Poland
| | - Stanisław Bartuś
- 2nd Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
| | - Andrzej Surdacki
- 2nd Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
| | - Tomasz Rakowski
- 2nd Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Department of Cardiology and Cardiovascular Interventions, University Hospital, 2 Jakubowskiego St., 30-688 Krakow, Poland
- Correspondence: ; Tel.: +48-12-400-22-50
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Bentur OS, Li J, Jiang CS, Martin LH, Kereiakes DJ, Coller BS. Application of Auxiliary VerifyNow Point-of-Care Assays to Assess the Pharmacodynamics of RUC-4, a Novel αIIbβ3 Receptor Antagonist. TH OPEN 2021; 5:e449-e460. [PMID: 34604694 PMCID: PMC8478527 DOI: 10.1055/s-0041-1732343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/16/2021] [Indexed: 12/01/2022] Open
Abstract
Introduction
Prehospital therapy of ST-elevation myocardial infarction (STEMI) with αIIbβ3 antagonists improves clinical outcomes, but they are difficult to use in prehospital settings. RUC-4 is a novel αIIbβ3 antagonist being developed for prehospital therapy of STEMI that rapidly achieves high-grade platelet inhibition after subcutaneous administration. Standard light transmission aggregometry (LTA) is difficult to perform during STEMI, so we applied VerifyNow (VN) assays to assess the pharmacodynamics of RUC-4 relative to aspirin and ticagrelor.
Methods
Blood from healthy volunteers was anticoagulated with phenylalanyl-prolyl-arginyl chloromethyl ketone (PPACK) or sodium citrate, treated in vitro with RUC-4, aspirin, and/or ticagrelor, and tested with the VN ADP + PGE
1
, iso-TRAP, and base channel (high concentration iso-TRAP + PAR-4 agonist) assays. The results were correlated with both ADP (20 µM)-induced LTA and flow cytometry measurement of receptor occupancy and data from individuals treated in vivo with RUC-4.
Results
RUC-4 inhibited all three VN assays, aspirin did not affect the assays, and ticagrelor markedly inhibited the ADP + PGE
1
assay, slightly inhibited the iso-TRAP assay, and did not inhibit the base channel assay. RUC-4's antiplatelet effects were potentiated in citrate compared with PPACK. Cut-off values were determined to correlate the results of the VN iso-TRAP and base channel assays with 80% inhibition of LTA.
Conclusion
The VN assays can differentiate the early potent anti-αIIbβ3 effects of RUC-4 from delayed effects of P2Y12 antagonists in the presence of aspirin. These pharmacodynamic assays can help guide the clinical development of RUC-4 and potentially be used to monitor RUC-4's effects in clinical practice.
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Affiliation(s)
- Ohad S Bentur
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, New York, United States
| | - Jihong Li
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, New York, United States
| | - Caroline S Jiang
- The Rockefeller University Hospital, New York, New York, United States
| | - Linda H Martin
- The Carl and Edyth Lindner Center for Research and Education at the Christ Hospital, Cincinnati, Ohio, United States
| | - Dean J Kereiakes
- The Carl and Edyth Lindner Center for Research and Education at the Christ Hospital, Cincinnati, Ohio, United States
| | - Barry S Coller
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, New York, United States
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Verdoia M, Viola O, D'Amico G, Ravetto C, Comoglio A, Fusco M, Giachino P, La Cognata S, Novara F, Bristot F, Pipan P, Magnaghi M, Brancati MF, Soldà PL, Marcolongo M. The FAST-STEMI Network in Biella From 2013 to 2019: Impact of the Delocalization of the Hospital Facilities on Ischemia Time and In-hospital Outcomes. Crit Pathw Cardiol 2021; 20:75-80. [PMID: 33177351 DOI: 10.1097/hpc.0000000000000248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The optimization of the strategies for myocardial revascularization has improved the outcomes of patients with ST-segment elevation myocardial infarction. In Piedmont, the FAST-STEMI regional network was created for improving the management and transportation of ST-segment elevation (STEMI) patients to primary percutaneous coronary intervention facilities, reducing the time to reperfusion. Within this network, the Hospital of Biella was delocalized in December 2014 to a new suburban structure designed for an easier access, which might have shortened the duration of patients' transportation and ischemia, with potential positive prognostic effects. The aim of the present study was to define the impact of the decentralization of the hospital structure on the time to reperfusion and in-hospital outcomes among STEMI patients admitted to the Hospital of Biella. METHODS We included STEMI patients admitted to our urban hospital between 2013 and 2019 and included in the FAST-STEMI database. The primary endpoint was the duration of ischemia, defined as pain to balloon (PTB). The primary outcome endpoint (PE) was in-hospital mortality. RESULTS We included 276 consecutive patients with STEMI undergoing primary percutaneous coronary intervention between 2016 and 2019 in the new hospital facility, which were compared with 170 patients treated between 2013 and June 2014 in the prior structure. Patients' characteristics included a mean age of 67.5 ± 12.5 years, 72.1% males and 18.7% patients with diabetes. In the new facility, the median PTB was 188 minutes [interquartile range: 125-340 min], reduced as compared with the period 2013-2014 [215 (128.5-352 min), P = 0.002]. The median in-hospital stay was also shorter (P = 0.004), whereas a nonsignificant improvement was noted for ejection fraction (EF) at discharge (P = 0.14). A linear relationship was demonstrated between PTB and the EF (r = -0.183, P = 0.003) in patients treated between 2016 and 2019 while not affecting the length of hospitalization or in-hospital outcomes. In fact, in-hospital death occurred in 36 patients, 8% in the new structure versus 7.7% in 2013-2014 [hazard ratio (HR) (95% confidence interval [CI]) = 1.20 (0.59-2.42), P = 0.62]. The independent predictors of mortality were patients' age and EF at discharge (age ≥ 75 y: adjusted HR [95% CI] = 6.75 [1.51-30.1], P = 0.01; EF: adjusted HR [95% CI] = 0.91 [0.88-0.95], P < 0.001). CONCLUSIONS The present study shows that, among the STEMI patients treated in our center, the delocalization of the hospital facilities and the optimization of the FAST-STEMI network reduced the duration of ischemia, with positive effects on left ventricular function at discharge. However, this did not translate into a significant benefit in survival, which was instead conditioned by the aging of the population.
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Affiliation(s)
- Monica Verdoia
- From the Cardiologia e Unità Coronarica, Ospedale Degli Infermi, ASL Biella, Italy
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Kereiakes DJ, Henry TD, DeMaria AN, Bentur O, Carlson M, Seng Yue C, Martin LH, Midkiff J, Mueller M, Meek T, Garza D, Gibson CM, Coller BS. First Human Use of RUC-4: A Nonactivating Second-Generation Small-Molecule Platelet Glycoprotein IIb/IIIa (Integrin αIIbβ3) Inhibitor Designed for Subcutaneous Point-of-Care Treatment of ST-Segment-Elevation Myocardial Infarction. J Am Heart Assoc 2020; 9:e016552. [PMID: 32844723 PMCID: PMC7660780 DOI: 10.1161/jaha.120.016552] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/08/2020] [Indexed: 01/14/2023]
Abstract
Background Despite reductions in door-to-balloon times for primary coronary intervention, mortality from ST-segment-elevation myocardial infarction has plateaued. Early pre-primary coronary intervention treatment of ST-segment-elevation myocardial infarction with glycoprotein IIb/IIIa inhibitors improves pre-primary coronary intervention coronary flow, limits infarct size, and improves survival. We report the first human use of a novel glycoprotein IIb/IIIa inhibitor designed for subcutaneous first point-of-care ST-segment-elevation myocardial infarction treatment. Methods and Results Healthy volunteers and patients with stable coronary artery disease receiving aspirin received escalating doses of RUC-4 or placebo in a sentinel-dose, randomized, blinded fashion. Inhibition of platelet aggregation (IPA) to ADP (20 μmol/L), RUC-4 blood levels, laboratory evaluations, and clinical assessments were made through 24 hours and at 7 days. Doses were increased until reaching the biologically effective dose (the dose producing ≥80% IPA within 15 minutes, with return toward baseline within 4 hours). In healthy volunteers, 15 minutes after subcutaneous injection, mean±SD IPA was 6.9%+7.1% after placebo and 71.8%±15.0% at 0.05 mg/kg (n=6) and 84.7%±16.7% at 0.075 mg/kg (n=6) after RUC-4. IPA diminished over 90 to 120 minutes. In patients with coronary artery disease, 15 minutes after subcutaneous injection of placebo or 0.04 mg/kg (n=2), 0.05 mg/kg (n=6), and 0.075 mg/kg (n=18) of RUC-4, IPA was 14.6%±11.7%, 53.6%±17.0%, 76.9%±10.6%, and 88.9%±12.7%, respectively. RUC-4 blood levels correlated with IPA. Aspirin did not affect IPA or RUC-4 blood levels. Platelet counts were stable and no serious adverse events, bleeding, or injection site reactions were observed. Conclusions RUC-4 provides rapid, high-grade, limited-duration platelet inhibition following subcutaneous administration that appears to be safe and well tolerated. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NTC03844191.
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Affiliation(s)
- Dean J. Kereiakes
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | - Tim D. Henry
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | | | - Ohad Bentur
- Allen and Frances Adler Laboratory of Blood and Vascular BiologyRockefeller UniversityNew YorkNY
| | | | | | - Linda H. Martin
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | - Jeff Midkiff
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | - Michele Mueller
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | - Terah Meek
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | - Deborah Garza
- The Carl and Edyth Lindner Center for Research and Education at The Christ HospitalCincinnatiOH
| | | | - Barry S. Coller
- Allen and Frances Adler Laboratory of Blood and Vascular BiologyRockefeller UniversityNew YorkNY
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Preclinical Studies of RUC-4, a Novel Platelet αIIbβ3 Antagonist, in Non-Human Primates and With Human Platelets. J Clin Transl Sci 2019; 3:65-74. [PMID: 31544007 PMCID: PMC6753935 DOI: 10.1017/cts.2019.382] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Introduction We are developing the novel αIIbβ3 antagonist, RUC-4, for subcutaneously (SC)-administered first-point-of-medical-contact treatment for ST Segment Elevated Myocardial Infarction (STEMI). Methods We studied the: 1. pharmacokinetics (PK) of RUC-4 at 1.0, 1.93, and 3.86 mg/kg IV, IM, and SC in non-human primates (NHPs); 2. impact of aspirin on RUC-4 IC50 in human platelet-rich plasma (PRP); 3. effect of different anticoagulants on the RUC-4 IC50 in human PRP; and 4. relationship between αIIbβ3 receptor blockade by RUC-4 and inhibition of ADP-induced platelet aggregation. Results 1. All doses of RUC-4 were well tolerated, but animals demonstrated variable temporary bruising. IM and SC RUC-4 reached dose-dependent peak levels within 5-15 min, with T½ s between 0.28 and 0.56 hrs. Platelet aggregation studies in NHPs receiving IM RUC-4 demonstrated >80% inhibition of the initial slope of ADP-induced aggregation with all 3 doses 30 minutes post-dosing, with subsequent dose-dependent loss of inhibition over 4-5 hours. 2. The RUC-4 IC50 for ADP-induced platelet aggregation was unaffected by aspirin treatment (40±9 nM vs. 37±5 nM; p=0.39). 3. The RUC-4 IC50 was significantly higher in PRP prepared from PPACK-anticoagulated blood compared to citrate-anticoagulated blood using either TRAP (122±17 vs. 66±25 nM; p=0.05; n=4) or ADP (102±22 vs. 54±13; p<0.001; n=5). 4. There was a close correspondence between receptor blockade and inhibition of ADP-induced platelet aggregation, with aggregation inhibition beginning with ~40% receptor blockade and becoming nearly complete at >80% receptor blockade. Discussion Based on these results and others, RUC-4 has now progressed to formal preclinical toxicology studies.
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Verdoia M, Nardin M, Negro F, Rolla R, Carriero A, De Luca G. Impact of long-term therapy with acetylsalicylic acid on immature platelet count. J Cardiovasc Med (Hagerstown) 2019; 20:306-312. [DOI: 10.2459/jcm.0000000000000786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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11
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Schoos M, De Luca G, Dangas G, Clemmensen P, Ayele GM, Mehran R, Stone G. Impact of time to treatment on the effects of bivalirudin vs. glycoprotein IIb/IIIa inhibitors and heparin in patients undergoing primary percutaneous coronary intervention: insights from the HORIZONS-AMI trial. EUROINTERVENTION 2016; 12:1144-1153. [DOI: 10.4244/eijv12i9a186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Savonitto S, De Luca G, Goldstein P, van T' Hof A, Zeymer U, Morici N, Thiele H, Montalescot G, Bolognese L. Antithrombotic therapy before, during and after emergency angioplasty for ST elevation myocardial infarction. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2016; 6:173-190. [PMID: 26124456 DOI: 10.1177/2048872615590148] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The first three hours after symptom onset hold the maximum potential for myocardial reperfusion and salvage in ST-elevation myocardial infarction (STEMI) patients. During this period timely primary percutaneous coronary intervention (PPCI) or, when PPCI is not promptly feasible, pre-hospital administration of fibrinolyis or a glycoprotein IIb/IIIa-inhibitor (GPI) have been shown to restore coronary patency and reperfusion and even result in myocardial infarction (MI) abortion. On the other hand, oral antiplatelet therapy may not yet guarantee sufficient platelet inhibition. Patients presenting after this golden time have less, if any, benefit from an aggressive antithrombotic treatment prior to PPCI. Antithrombotic treatment during primary angioplasty should be tailored on the basis of the coronary thrombotic burden, vascular approach and the patient's risk of bleeding complications. A GPI-based approach may be favourable in patients presenting early with large MI and high thrombus burden, whereas a bivalirudin-based approach without GPI may be preferred in patients with higher bleeding risk. There are no data to support the use of GPI in bailout conditions. The powerful oral P2Y12 inhibitors, prasugrel and ticagrelor, have been clearly shown to prevent stent thrombosis and recurrent ischaemic events after emergency percutaneous coronary intervention in STEMI patients. Open issues remaining are the treatment of patients with high bleeding risk, such as the elderly and those requiring anticoagulation, as well as the duration of dual antiplatelet therapy after STEMI.
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Affiliation(s)
| | | | | | | | - Uwe Zeymer
- 5 Klinikum Ludwigshafen, Ludwigshafen, Germany
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Verdoia M, Schaffer A, Barbieri L, Suryapranata H, De Luca G. Bivalirudin Versus Unfractionated Heparin in Acute Coronary Syndromes: An Updated Meta-analysis of Randomized Trials. REVISTA ESPANOLA DE CARDIOLOGIA (ENGLISH ED.) 2016; 69:732-745. [PMID: 27198128 DOI: 10.1016/j.rec.2016.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 01/25/2016] [Indexed: 06/05/2023]
Abstract
INTRODUCTION AND OBJECTIVES Contrasting data have been reported on bivalirudin as an anticoagulation strategy during percutaneous coronary interventions, offering theoretical benefits on bleeding complications but raising concerns on a potential increase in the risk of stent thrombosis. We performed an updated meta-analysis to evaluate the efficacy and safety of bivalirudin compared with unfractionated heparin in patients undergoing percutaneous interventions for acute coronary syndromes. METHODS Literature archives and main scientific sessions were scanned. The primary efficacy endpoint was 30-day overall mortality. Secondary endpoints were stent thrombosis and major bleeding. A prespecified analysis was conducted according to clinical presentation. RESULTS Twelve randomized trials were included, involving 32 746 patients (52.5% randomized to bivalirudin). Death occurred in 1.8% of the patients, with no differences between bivalirudin and heparin (odds ratio = 0.91; 95% confidence interval, 0.77-1.08; P = .28; P for heterogeneity = .41). Similar results were obtained for patients with non-ST-segment elevation and in ST-segment elevation myocardial infarction. A significantly higher rate of stent thrombosis was observed with bivalirudin (odds ratio = 1.42; 95% confidence interval, 1.09-1.83; P = .008; P for heterogeneity = .09). Bivalirudin was associated with a significant reduction in the rate of major bleeding (odds ratio = 0.60; 95% confidence interval, 0.54-0.75; P < .00001; P for heterogeneity < .0001), which, however, was related to the differential use of glycoprotein IIb/IIIa inhibitors (r = -0.02 [-0.033 to -0.0032]; P = .02) and did not translate into survival benefits. CONCLUSIONS In patients undergoing percutaneous coronary interventions, bivalirudin is not associated with a reduction in mortality compared with heparin but does increase stent thrombosis. The reduction in bleeding complications observed with bivalirudin does not translate into survival benefits but is rather influenced by a differential use of glycoprotein IIb/IIIa inhibitors.
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Affiliation(s)
- Monica Verdoia
- Division of Cardiology, Azienda Ospedaliera-Universitaria "Maggiore della Carità", Eastern Piedmont University, Novara, Italy
| | - Alon Schaffer
- Division of Cardiology, Azienda Ospedaliera-Universitaria "Maggiore della Carità", Eastern Piedmont University, Novara, Italy
| | - Lucia Barbieri
- Division of Cardiology, Azienda Ospedaliera-Universitaria "Maggiore della Carità", Eastern Piedmont University, Novara, Italy
| | | | - Giuseppe De Luca
- Division of Cardiology, Azienda Ospedaliera-Universitaria "Maggiore della Carità", Eastern Piedmont University, Novara, Italy.
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Bivalirudina frente a heparina no fraccionada en síndromes coronarios agudos: un metanálisis actualizado de ensayos aleatorizados. Rev Esp Cardiol 2016. [DOI: 10.1016/j.recesp.2016.01.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Velders MA, Abtan J, Angiolillo DJ, Ardissino D, Harrington RA, Hellkamp A, Himmelmann A, Husted S, Katus HA, Meier B, Schulte PJ, Storey RF, Wallentin L, Gabriel Steg P, James SK. Safety and efficacy of ticagrelor and clopidogrel in primary percutaneous coronary intervention. Heart 2016; 102:617-25. [DOI: 10.1136/heartjnl-2015-308963] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/30/2015] [Indexed: 11/03/2022] Open
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