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190 active trials for Acute Coronary Syndrome

Personalized Vs. Standard Duration of Dual Antiplatelet Therapy and New-generation Polymer-Free vs- Biodegradable-Polymer DES

New-generation metallic drug-eluting stents represent the standard of care among patients undergoing percutaneous coronary intervention (PCI). Currently, few data are available as regards to the safety and efficacy of the Cre8 amphilimus-eluting stent (Cre8 AES, Alvimedica, Instanbul, Turkey) in comparison with the biodegradable polymer everolimus-eluting stent (Synergy EES, Boston Scientific, Marlborough, MA, USA). Results from randomized trials and meta-analyses consistently indicate that prolonged dual antiplatelet therapy (DAPT) after PCI reduces ischemic events, but invariably conveys an excess of clinically relevant bleeding, which is proportional to the duration of treatment. It has been estimated, indeed, that for every non-fatal ischemic event avoided with prolonged DAPT, two or more clinically relevant bleeding events have to be expected. Given the trade-off between benefits and risks and the lack of mortality benefit in favor of prolonged DAPT, expert consensus suggests that DAPT duration should be individualized based on ischemic versus bleeding risks. At this regard, the DAPT score has been recently proposed as standardized tool to identify patients who derive benefit or lack from a prolonged course of DAPT. However, a prospective assessment of the DAPT score is lacking and whether a personalized duration of DAPT based on the DAPT score improves the net clinical benefit remains unknown. The objective of the study is to compared the safety and the efficacy of the Cre8 AES with the Synergy EES and a personalized DAPT duration based on the DAPT score with a standard DAPT duration among patients undergoing PCI.

Start: December 2019
The Safety and Efficacy Of Rivaroxaban and Ticagrelor for Patients With Atrial Fibrillation After Percutaneous Coronary Intervention

Currently, there is minimal data on the combination of rivaroxaban and ticagrelor in patients with atrial fibrillation (AF) managed with percutaneous coronary intervention (PCI). Furthermore, there exists significant controversy among physicians in the use of oral anticoagulants in conjunction with antiplatelet therapy in this population. The present recommendation is triple therapy (aspirin + clopidogrel + warfarin), which has been related to major bleeding complications. Previous studies have shown that ticagrelor has been proven to be more effective in reducing the rate of death, new heart attacks, or strokes than the previously recommended drug, clopidogrel, and studies have shown that less bleeding occurs with rivaroxaban than with warfarin. Therefore, it would be ideal to investigate the two potent drugs, ticagrelor and rivaroxaban, in combination in order to gain insight in the management of these high-risk patients. The CAPITAL PCI AF study is a phase 3 Health Canada regulated interventional study involving the use of investigational drugs. It is a non-randomized, open-design study. The investigational team is studying the highly potent drug Ticagrelor, which is prescribed to participants receiving a stent placement, given in combination with Rivaroxaban, an oral anticoagulant recommended for patients with AF. The primary clinical endpoint is a safety outcome measuring bleeding complications in participants with AF treated within one year of the index PCI. The primary efficacy endpoint is measured by the clinical outcomes of death, stroke, non-central nervous system systemic embolism, myocardial infarction, and stent thrombosis within one year of the index PCI.

Start: November 2018
The Value of CT-FFR Compared to CCTA or CCTA and Stress MPI in Low to Intermediate Risk ED Patients With Toshiba CT-FFR

Coronary Computed Tomography Angiogram (CCTA) is a non-invasive imaging modality that has high sensitivity and negative predictive value for the detection of coronary artery disease (CAD). The main limitations of CCTA are its poor specificity and positive predictive value, as well as its inherent lack of physiologically relevant data on hemodynamic significance of coronary stenosis, a data that is provided either by non-invasive stress tests such as myocardial perfusion imaging (MPI) or invasively by measurement of the Fractional Flow Reserve (FFR). Recent advances in computational fluid dynamic techniques applied to standard CCTA are now emerging as powerful tools for virtual measurement of FFR from CCTA imaging (CT-FFR). These techniques correlate well with invasively measured FFR [1-4]. The primary purpose of this study is to evaluate the incremental benefit CT-FFR as compared to CCTA in triaging chest pain patients in emergency settings who are found to have obstructive CAD upon CCTA (generally >= 30% stenosis). Invasive FFR and short term clinical outcomes (90 days) will be correlated with each diagnostic modality in order to evaluate positive and negative predictive value of each. Patients will undergo a CCTA, as part of routine emergency care. If the patient consents to participate in the study, the CCTA study will be assessed by Toshiba Software, to provide a computerized FFR reading, based on the CCTA study. If the noninvasive FFR diagnosis indicates obstructive disease, the patient will undergo cardiac catheterization with invasive FFR. As CCTA utilization increases, the need to train additional imaging specialists will increase. This study will assess the capability of FFR-CT to enhance performance on both negative and positive predictive value for less experienced readers by providing feedback based on CT-FFR evaluation. If the use of CT-FFR improves accuracy of CCTA, as compared to the gold standard, (Invasive FFR), use of CT-FFR can potentially enhance performance for less experienced readers.

Start: April 2018
Revascularization Strategies in Patients With Non-ST-Segment Elevation Acute Coronary Syndrome (NSTE-ACS) and Severe Coronary Artery Disease

MILESTONE STUDY is dedicated to problems connected with patients with multivessel coronary artery disease and/or with left main narrowing who present symptoms of acute ischemia. For such kind of patients according to current ACC/AHA guidelines CABG (surgical revascularization) is recommended as a treatment method. In comparison with CABG, recent studies have shown that PCI (percutaneous coronary intervention) is associated with a lower rate of periprocedural adverse events and similar long term event-free survival in patients with left main disease. Our latest non randomized registry and randomized LEMANS study, comparing LMCA (left main coronary artery) stenting with CABG confirmed above findings. LEMANS ACS (acute coronary syndrome) retrospective registry of patients with UPLMCA (unprotected LMCA) disease and non ST elevation ACS showed lower 30 day and trend toward lower one year mortality after PCI when compared with CABG. It should be stressed, that acute ischemia substantially increase the risk of CABG. In fact, there are limited data on the outcome of ULMCA stenting or CABG in patients with acute coronary syndromes (ACS). Similarly, all randomized studies comparing PCI vs CABG in multivessel disease included mainly patients with stable angina, small cohort of patients with unstable angina and they excluded patients with non ST elevation Myocardial infarction. In the SYNTAX study -largest PCI vs CABG trial, randomized patients were patients with low perioperative risk (logistic EUROSCORE <5) and ACS patients routinely excluded. High perioperative risk patients were included only in PCI registry.

Start: January 2021
The Influence of Cardiac Rehabilitation on the Health State After ACS

Coronary heart disease, including acute coronary syndromes (ACS), is the leading cause of death in European countries. One of the basic elements of secondary and tertiary prevention of ACS is cardiac rehabilitation. The aims of the study are evaluation of the impact of cardiac rehabilitation on health state- especially on cardiovascular function parameters in patients after acute coronary syndrome and evaluation of the influence of the level of gene expression and polymorphisms of genes associated with ischemic heart disease on the course of cardiac rehabilitation in patients after ACS. The study will consist of a retrospective and prospective part. The retrospective part will include patients who have had acute coronary syndrome in the past and then - before being included in the study - have undergone cardiac rehabilitation. In the retrospective part, patients enrolled in the study will not undergo cardiac rehabilitation as a part of the study intervention. The prospective part will include patients who have had an acute coronary syndrome in the past and will undergo cardiac rehabilitation as the study intervention. After being included in the study, patients will undergo medical examination. Then subsequent procedures will be performed: anthropometric measurements; ECG; body composition analysis by bioimpedance; measurement of resting blood pressure, resting heart rate and oxygen saturation of hemoglobin; pulse wave analysis; transthoracic echocardiography of the heart; 24-hour blood pressure measurement by ambulatory blood pressure monitoring (ABPM); 24-hour ECG recording using the Holter method; electrocardiographic exercise test on a treadmill and / or a six-minute walk test or other exercise test adequate to the patient's state of health; assessment of the quality of the diet; assessment of lifestyle, acceptance of disease and quality of life; assessment of the psychological profile. Subsequently patients taking part in the prospective part of the study will perform a cardiac rehabilitation program. After the cardiac rehabilitation program measurement procedures listed above will be repeated. Before and after the cardiac rehabilitation program blood samples, urine samples and hair samples will be collected. Blood samples, urine samples and hair samples will also be collected from patients taking part in the retrospective part of the study.

Start: April 2019
Pragmatic Collaborative Care for Cardiac Inpatients With Depression or Anxiety

The investigators will complete a pragmatic randomized trial (N=260) of the 26-week blended collaborative care (CC) intervention compared to enhanced usual care (eUC) in patients admitted for acute coronary syndrome (ACS) or heart failure (HF) found to have current depression, generalized anxiety disorder (GAD), or panic disorder (PD). The CC intervention will use a novel three-pronged approach to these high-risk patients. Care managers will provide centralized care coordination and specific interventions targeting: (1) the psychiatric disorders, (2) cardiac health behaviors, and (3) the cardiac illness. The primary study outcome will be physical function at 26 weeks, measured by the Duke Activity Status Index (DASI), given links between function and new cardiac events. The investigators will also examine effects on numerous other outcomes important to patients and healthcare systems. Specific Aim 1 [patient-centered outcomes-primary aim]: To compare between-group differences in the CC and eUC conditions on improvements in physical function, health-related quality of life, mental health, patient satisfaction, and other key patient-reported outcomes at 26 and 52 weeks. Specific Aim 2 [adherence and medical outcomes]: To compare between-group differences on health behaviors (physical activity, diet, smoking, medication adherence) and major adverse cardiac events. Specific Aim 3 [cost]: To compare healthcare costs between groups and assess the cost-effectiveness of CC. Hypotheses: The investigators expect this bolstered CC program to be associated with superior improvements in physical function, health-related quality of life, patient satisfaction, and adherence at 26 weeks, with promising effects on major adverse cardiac events. The investigators likewise expect the intervention to be cost-effective (<$10,000/quality-adjusted life year) over the study period.

Start: October 2017