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DAPT agents

Ana Paula Narata, Aymeric Amelot, Richard Bibi, Denis Herbreteau, Denis Angoulvant, Yves Gruel, Kevin Janot
BACKGROUND: Dual antiplatelet therapy (DAPT) associating aspirin + clopidogrel is commonly utilized in neurovascular interventions despite unpredictable clopidogrel efficacy with 4% to 50% of patients considered nonresponders. Ticagrelor is an antiplatelet agent with low resistance rates but unknown efficacy and safety in neurovascular patients. OBJECTIVE: To evaluate frequency of ischemic and hemorrhagic events in patients treated with aspirin and ticagrelor when associated with perioperative heparin bolus for unruptured aneurysms treated with intracranial stents...
February 26, 2018: Neurosurgery
Shamir R Mehta, Kevin R Bainey, Warren J Cantor, Marie Lordkipanidzé, Guillaume Marquis-Gravel, Simon D Robinson, Matthew Sibbald, Derek Y So, Graham C Wong, Joseph G Abunassar, Margaret L Ackman, Alan D Bell, Raymond Cartier, James D Douketis, Patrick R Lawler, Michael S McMurtry, Jacob A Udell, Sean van Diepen, Subodh Verma, G B John Mancini, John A Cairns, Jean-François Tanguay
Antiplatelet therapy (APT) has become an important tool in the treatment and prevention of atherosclerotic events, particularly those associated with coronary artery disease. A large evidence base has evolved regarding the relationship between APT prescription in various clinical contexts and risk/benefit relationships. The Guidelines Committee of the Canadian Cardiovascular Society and Canadian Association of Interventional Cardiology publishes regular updates of its recommendations, taking into consideration the most recent clinical evidence...
March 2018: Canadian Journal of Cardiology
Giorgio Baralis, Roberta Rossini, Giuseppe Musumeci
Reperfusion therapy for patients presenting with an acute ST-segment elevation myocardial infarction (STEMI) involves primary percutaneous coronary intervention (PPCI) and concomitant dual antiplatelet therapy (DAPT) with combination of a P2Y12 inhibitor and acetylsalicylic acid (ASA). Decision regarding DAPT can be challenging clinically in the modern era with the evolution of newer stents, more potent antiplatelet agents and novel anticoagulant drugs in addition to an older patient population with multiple comorbidities...
February 19, 2018: Minerva Cardioangiologica
David Kopin, W Schuyler Jones, Matthew W Sherwood, Daniel M Wojdyla, Lars Wallentin, Basil S Lewis, Freek W A Verheugt, Dragos Vinereanu, M Cecilia Bahit, Sigrun Halvorsen, Kurt Huber, Alexander Parkhomenko, Christopher B Granger, Renato D Lopes, John H Alexander
BACKGROUND: We assessed antiplatelet therapy use and outcomes in patients undergoing percutaneous coronary intervention (PCI) during the ARISTOTLE trial. METHODS: Patients were categorized based on the occurrence of PCI during follow-up (median 1.8 years); PCI details and outcomes post-PCI are reported. Of the 18,201 trial participants, 316 (1.7%) underwent PCI (152 in apixaban group, 164 in warfarin group). RESULTS: At the time of PCI, 84% (267) were on study drug (either apixaban or warfarin)...
March 2018: American Heart Journal
David H Lam, Sean M Bell, Ravi S Hira
PURPOSE OF REVIEW: Coronary heart disease (CHD) and atrial fibrillation (AF) are among the most common cardiovascular diseases. A significant proportion of patients have both CHD and AF and are at increased risk for thrombotic complications. Current therapy for CHD and AF includes antiplatelet and anticoagulant medications, respectively. Patients with concurrent CHD and AF may be prescribed dual antiplatelet therapy (DAPT) in addition to anticoagulation, which increases their bleeding risk...
January 19, 2018: Current Atherosclerosis Reports
Nikolaos Spinthakis, Mohamed Farag, Zaki Akhtar, Diana Adrienne Gorog
BACKGROUND: Acute coronary syndrome (ACS) patients, despite treatment with dual antiplatelet therapy (DAPT), have up to 10% risk of recurrent major adverse cardiac events (MACE) in the short term. METHODS: Here we review studies using more potent antithrombotic agent combinations to reduce this risk, namely triple therapy (TT) with the addition of an oral anticoagulant, PAR-1 antagonist, or cilostazol to DAPT (mainly aspirin and clopidogrel), and discuss the limitations of trials to date...
January 16, 2018: Current Vascular Pharmacology
Danny Kupka, Dirk Sibbing
P2Y12 inhibitors are a critical component of dual antiplatelet therapy (DAPT), which is the superior strategy to prevent arterialthrombosis in patients with acute coronary syndromes (ACS) and undergoing stent implantation.. Areas covered: Basic science articles, clinical studies, and reviews from 1992-2017 were searched using Pubmed library to collet impactful literature. After an introduction to the purinergic receptor biology, this review summarizes current knowledge on P2Y12 receptor inhibitors. Furthermore, we describe the subsequent improvements of next-generation P2Y12 receptor inhibitors facing the ambivalent problem of bleeding events versus prevention of arterial thrombosis in a variety of clinical settings...
January 23, 2018: Expert Opinion on Drug Metabolism & Toxicology
Christopher P Childers, Melinda Maggard-Gibbons, Jesus G Ulloa, Ian T MacQueen, Isomi M Miake-Lye, Roberta Shanman, Selene Mak, Jessica M Beroes, Paul G Shekelle
BACKGROUND: The correct perioperative management of antiplatelet therapy (APT) in patients undergoing non-cardiac surgery (NCS) is often debated by clinicians. American College of Cardiology (ACC) and American Heart Association (AHA) guidelines recommend postponing elective NCS at least 3 months after stent implantation. Regardless of the timing of surgery, ACC/AHA guidelines recommend continuing at least ASA throughout the perioperative period and ideally continuing dual APT (DAPT) therapy "unless surgery demands discontinuation...
January 10, 2018: Systematic Reviews
Safi U Khan, Adeel Arshad, Irbaz Bin Riaz, Swapna Talluri, Fahad Nasir, Edo Kaluski
The significance of adding new oral anticoagulants (NOACs) to antiplatelet therapy in patients with acute coronary syndrome (ACS) is unclear. We conducted a meta-analysis to assess the safety and efficacy of adding NOACs (apixaban, rivaroxaban, and dabigatran) to single antiplatelet agent (SAP) or dual antiplatelet therapy (DAPT) in patients with ACS. Seven randomized controlled trials were selected using PubMed or MEDLINE, Scopus, and Cochrane library (inception to August 2017). The summary measure was random effects hazard ratio (HR) with 95% confidence interval (CI)...
February 1, 2018: American Journal of Cardiology
M Spartalis, E Tzatzaki, E Spartalis, C Damaskos, A Athanasiou, D Moris, M Politou
OBJECTIVE: Dual antiplatelet therapy (DAPT) is the treatment of choice in the medical management of patients with acute coronary syndrome (ACS). The combination of aspirin and a P2Y12 inhibitor in patients who receive a coronary stent reduces the rate of stent thrombosis and the rates of major adverse cardiovascular events. However, patients with acute coronary syndrome remain at risk of recurrent cardiovascular events despite the advance of medical therapy. The limitations of clopidogrel with variable antiplatelet effects and delayed onset of action are well established and lead to the development of newer P2Y12 inhibitors...
October 2017: European Review for Medical and Pharmacological Sciences
Rahul R Goli, Mayur M Contractor, Ashwin Nathan, Sony Tuteja, Taisei Kobayashi, Jay Giri
PURPOSE OF REVIEW: Platelets are activated upon interaction with injured vascular endothelium to form a primary hemostatic plug. Pathogenic thrombosis driven by platelet aggregation can occur in the setting of vascular disease leading to ischemic events. The use of antiplatelet agents has become a mainstay for prevention of the secondary complications of vascular disease. This review summarizes seminal and recent literature related to this area. RECENT FINDINGS: Aspirin is a cornerstone of antiplatelet therapy for coronary artery disease and cerebrovascular disease for prevention of myocardial infarction, stroke, and vascular death...
November 4, 2017: Current Atherosclerosis Reports
Olivier Varenne, Stéphane Cook, Georgios Sideris, Sasko Kedev, Thomas Cuisset, Didier Carrié, Thomas Hovasse, Philippe Garot, Rami El Mahmoud, Christian Spaulding, Gérard Helft, José F Diaz Fernandez, Salvatore Brugaletta, Eduardo Pinar-Bermudez, Josepa Mauri Ferre, Philippe Commeau, Emmanuel Teiger, Kris Bogaerts, Manel Sabate, Marie-Claude Morice, Peter R Sinnaeve
BACKGROUND: Elderly patients regularly receive bare-metal stents (BMS) instead of drug-eluting stents (DES) to shorten the duration of double antiplatelet therapy (DAPT). The aim of this study was to compare outcomes between these two types of stents with a short duration of DAPT in such patients. METHODS: In this randomised single-blind trial, we recruited patients from 44 centres in nine countries. Patients were eligible if they were aged 75 years or older; had stable angina, silent ischaemia, or an acute coronary syndrome; and had at least one coronary artery with a stenosis of at least 70% (≥50% for the left main stem) deemed eligible for percutaneous coronary intervention (PCI)...
October 31, 2017: Lancet
Samuel Jang, Andrew Janssen, Zviadi Aburjania, Matthew B Robers, April Harrison, Ajitha Dammalapati, Yi-Qiang Cheng, Herbert Chen, Renata Jaskula-Sztul
Novel therapies for neuroendocrine (NE) cancers are desperately needed as they frequently present as metastatic disease and cause debilitating symptoms by secreting excessive hormones. Induction of Notch isoforms has a tumor suppressive effect in NE cancer cell lines, and we have observed that histone deacetylase inhibitors (HDACi) potently activate Notch. In this study, we describe the potential for Burkholderia thailandensis-derived class I HDACi thailandepsin A (TDP-A) as a Notch activator and therapeutic agent against NE cancer...
September 19, 2017: Oncotarget
Xiaoxuan Gong, Shaowen Tang, Jiangjin Li, Xiwen Zhang, Xiaoyi Tian, Shuren Ma
OBJECTIVE: The aim of this systematic review and network meta-analysis was to evaluate the comparative efficacy and safety of antiplatelet agents, vitamin K antagonist (VKA) and non-VKA oral anticoagulants (NOACs) in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). METHODS: PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials were searched to identify clinical trials comparing antiplatelet drugs with VKA and NOACs or their combination in AF patients undergoing PCI with a mean/median follow-up of at least 12 months...
2017: PloS One
Chiko Sato, Kingo Hirasawa, Ryonho Koh, Ryosuke Ikeda, Takehide Fukuchi, Ryosuke Kobayashi, Hiroaki Kaneko, Makomo Makazu, Shin Maeda
AIM: To investigated the relationship between postoperative bleeding following gastric endoscopic submucosal dissection (ESD) and individual antithrombotic agents. METHODS: A total of 2488 gastric neoplasms in 2148 consecutive patients treated between May 2001 and June 2016 were studied. The antithrombotic agents were categorized into antiplatelet agents, anticoagulants, and other antithrombotic agents, and we included combination therapies [e.g., dual antiplatelet therapy (DAPT)]...
August 14, 2017: World Journal of Gastroenterology: WJG
Aitana Sogorb-Esteve, María-Salud García-Ayllón, Marta Llansola, Vicente Felipo, Kaj Blennow, Javier Sáez-Valero
γ-Secretase inhibitors (GSIs) are potential therapeutic agents for Alzheimer's disease (AD); however, trials have proven disappointing. We addressed the possibility that γ-secretase inhibition can provoke a rebound effect, elevating the levels of the catalytic γ-secretase subunit, presenilin-1 (PS1). Acute treatment of SH-SY5Y cells with the GSI LY-374973 (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester, DAPT) augments PS1, in parallel with increases in other γ-secretase subunits nicastrin, presenilin enhancer 2, and anterior pharynx-defective 1, yet with no increase in messenger RNA expression...
August 16, 2017: Molecular Neurobiology
Abhishek Sinha, Kush Agrawal, Rahul Sakhuja
Antiplatelet therapy is an essential component of ST elevation myocardial infarction (STEMI) management. Dual antiplatelet therapy (DAPT) with aspirin and clopidogrel has previously been the standard of care for STEMI management, but the advent of newer, more potent P2Y12 inhibitors has expanded the options for the management of STEMI. As compared with clopidogrel, these newer P2Y12 agents-such as prasugrel and ticagrelor-allow for further reductions in ischemic end points, without the robust increases in bleeding seen in previous studies of antithrombotic therapies...
August 2017: Current Treatment Options in Cardiovascular Medicine
Rainer Hubmann, Wolfgang Sieghart, Susanne Schnabl, Mohammad Araghi, Martin Hilgarth, Marlies Reiter, Dita Demirtas, Peter Valent, Christoph Zielinski, Ulrich Jäger, Medhat Shehata
Deregulation of NOTCH2 signaling is implicated in a wide variety of human neoplasias. The current concept of targeting NOTCH is based on using gamma secretase inhibitors (GSI) to regulate the release of the active NOTCH intracellular domain. However, the clinical outcome of GSI remains unsatisfactory. Therefore we analyzed human solid tumor derived cell lines for their nuclear NOTCH activity and evaluated the therapeutic potential of the NOTCH2 transactivation inhibitor gliotoxin in comparison to the representative GSI DAPT...
2017: Frontiers in Pharmacology
Arka Chatterjee, William B Hillegass
Prolonged dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) on average reduces the risk of subsequent myocardial infarction (MI) but increases major bleeds. Individualizing duration of DAPT based on the DAPT trial's net benefit prediction tool would likely optimize outcome beyond population average recommendations. Individualizing agent selection and duration of therapy based on genomic data may further improve outcomes. Clinical judgment remains the most important tool to tailor DAPT duration based on a large array of additional relevant factors not captured by predition rules or genomics...
July 2017: Catheterization and Cardiovascular Interventions
Charles Pirlet, Victor Legrand, Astrid Nyssen, Luc Pierard, Olivier Gach
Dual anti-platelet therapy is prescribed in the setting of coronary heart disease for the prevention of stent thrombosis and acute thrombotic events. The optimal duration of dual anti-platelet therapy is still under debate as numerous trials have shown non-inferiority of a strategy of early cessation of one of the agents as compared to the standard practice whereas two larger trials have demonstrated benefit of prolonging dual anti-platelet therapy.
June 2017: Acta Cardiologica
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