[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"anoca\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:anoca":26},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,51],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":22,"studyType":23,"phases":4,"briefSummary":24,"conditions":25,"keywords":33,"overallStatus":38,"whyStopped":4,"lastUpdateSubmitDate":39,"lastUpdatePostDateStruct":40,"startDateStruct":43,"completionDateStruct":45,"leadSponsor":47,"locationsCount":50},"100600886","comprehensive-coronary-physiology-in-patients-with-angina-with-nonobstructive-coronary-arteries---czech-republic-100600886",false,"NCT07103317","Comprehensive Coronary Physiology in Patients With Angina With Nonobstructive Coronary Arteries - Czech Republic","Comprehensive COROnary PHYSiology Assessment in Patients With Angina With Nonobstructive Coronary Arteries - CZECH Republic (CoroPhys-CZECH)","CoroPhys-CZ","Inclusion Criteria:\n\n* Adults of both sexes older than 18 years\n* Angina symptoms or angina equivalent\n* Referred to cath lab for evaluation of CAD\n* Invasive physiology testing performed (microcirculation testing +\u002F- vasospasm testing)\n\nExclusion Criteria:\n\n* Persons under the age of 18\n* Pregnant of nursing\n* No coronary physiology measurements were performed","ALL","18 Years",{"count":20,"type":21},1000,"ESTIMATED","100 Years","OBSERVATIONAL","Coronary artery disease (CAD) is a leading cause of morbidity and mortality. While cardiologists have been focused on discrete, visible stenoses of coronary arteries, there is increasing awareness of the importance of microcirculation and vasospastic disorders in causing angina. The microvascular bed is composed of vessels smaller than 400 microns in diameter. Their network is significantly larger than that of the epicardial vessels and serves essential functions, including regulating myocardial blood flow and cellular metabolism.\n\nAngina pectoris, a most frequent symptom of CAD or myocardial ischemia, was assumed to be caused by significant stenosis of the epicardial coronary artery. However, it was found that in over 50% of cases, there was no obstructive CAD, which is described as angina with no obstructive coronary arteries (ANOCA) or ischemia with no obstructive coronary arteries (INOCA), according to the clinical setting.",[26,27,28,29,30,31,32],"ANOCA","ANOCA - Angina With Non-obstructive Coronary Arteries","MINOCA","Microvascular Dysfunction","Microvascular Angina","Vasospastic Angina","Acetylcholine",[26,34,28,35,30,31,36,37],"INOCA","Coronary Microvascular Dysfunction","Acetylcholine Testing","Coronary Termodilution","RECRUITING","2025-08-01",{"date":41,"type":42},"2025-08-05","ACTUAL",{"date":44,"type":42},"2023-04-20",{"date":46,"type":21},"2030-01-01",{"name":48,"class":49},"University Hospital, Motol","OTHER",1,{"id":52,"slug":53,"hasResults":11,"nctId":54,"briefTitle":55,"officialTitle":56,"acronym":57,"eligibilityCriteria":58,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":59,"targetDuration":4,"studyType":61,"phases":62,"briefSummary":64,"conditions":65,"keywords":68,"overallStatus":38,"whyStopped":4,"lastUpdateSubmitDate":76,"lastUpdatePostDateStruct":77,"startDateStruct":79,"completionDateStruct":81,"leadSponsor":83,"locationsCount":50},"100593714","coronary-sinus-reducer-in-patients-with-angina-with-no-obstructive-coronary-disease-100593714","NCT07010029","Coronary Sinus Reducer in Patients With Angina With no Obstructive Coronary Disease","Coronary Sinus Reducer in Patients With Angina With no Obstructive Coronary Disease: a Prospective Single-arm Study","REDUCE-ANOCA","Inclusion Criteria:\n\n* Stable angina symptoms without significant obstruction of coronary artery (defined as coronary artery stenosis diameter ≤ 50% or coronary artery stenosis diameter \\>50% and ≤70% with FFR\\>0.8), with coronary microvascular dysfunction confirmed in invasive test (defined as coronary flow reserve ≤ 2.5 or index of microvascular resistance ≥ 25)\n* No future options for antianginal therapy (maximum antianginal therapy for at least three months)\n\nExclusion Criteria:\n\n* Vasospastic angina (positive test with acetylcholine),\n* Evidence of cardiac ischemia,\n* Coronary flow limiting myocardial bridge,\n* Severe valvular disease\n* Hospitalization for acute heart failure \\\u003C 3 months\n* Hypertrophic cardiomyopathy,\n* Ejection fraction ≤ 30%,\n* Permanent pacemaker or defibrillator leads in the right heart,\n* Recent acute coronary syndrome \\\u003C 6 months,\n* Recent revascularization \\\u003C 2 months,\n* Right atrial pressure of 15 mmHg or higher,\n* Severe renal impairment,\n* Indication for cardiac resynchronization therapy,\n* Pregnancy,\n* Life expectancy of less than 1 year,\n* Inclusion in another clinical trial",{"count":60,"type":21},50,"INTERVENTIONAL",[63],"NA","Even half of patients with angina undergoing invasive coronary angiography presents without any significant epicardial stenosis. In these cases, symptoms are usually caused by coronary microvascular dysfunction (CMD), developing as a result of several potential underlying pathophysiologies. A wide range of underlying pathomechanisms makes it challenging to develop molecular-targeted pharmacological solutions; thus, direct physiology modification has been introduced as a promising concept. The coronary sinus reducer (CSR) narrows the coronary sinus, which causes symptom relief in patients with refractory angina and coronary stenosis. CSR implantation aims to increase the coronary sinus pressure, which raises venous back pressure into the myocardium. Despite several hypotheses, the exact physiological mechanisms remain not fully elucidated. Recent data from observational studies also suggest the beneficial effect of CMD on microvascular indices. To date, there are limited data regarding the efficacy of this solution in patients with angina with no obstructive coronary artery disease (ANOCA). Of note, patients with ANOCA are frequently burdened with other comorbidities, such as heart failure with preserved ejection fraction (HFpEF). HFpEF presence relates to worse prognosis and higher risk of future cardiovascular events. Previous works showed that HFpEF is significantly associated with the appearance of CMD. Due to the small variety of drugs for HFpEF, treatment targeting CMD may be a promising therapeutic target for this disease. To date, there is also no data regarding the impact of CSR implantation on function of left ventricle and echocardiographic indexes impaired in diastolic dysfunction in patients with ANOCA. Proposed study aims to evaluate the CSR as a therapeutic strategy in patients with ANOCA to improve angina, as well as quality of life and will deliver the results regarding CSR impact on diastolic function of left and right ventricle. This study will also evaluate the mechanisms standing behind the benefits of CSR use. Neovasc reducer produced by Shockwave Medical inc will be used as CSR device in this study. Proposed study may lead to the introduction of the Neovasc reducer to the guidelines for ANOCA patients. It will also provide the data on Neovasc reducer potential use as a supportive therapy in patients with HFpEF. Prospective, single-arm cohort study including patients with angina with no obstructive coronary artery disease. Enrolled patients will undergo the Neovasc reducer implantation with periprocedural evaluation of coronary microcirculation before and directly after the device implantation. All patients will be assessed with echocardiography (evaluation by external corelab) at baseline and at six months of follow-up. Patients will also undergo exercise testing (six-minute walk test) and assessment of quality of life (SF-36), as well as angina severity (Seattle Angina Questionnaire, Dedicated app and Canadian Cardiovascular Society grade).",[66,26,67],"Angina With No Obstructive Coronary Artery Disease","Coronary Sinus Reducer",[69,70,71,26,72,67,73,74,75],"CFR","IMR","Angina","CSR","Diastolic Dysfunction","Quality of Life","FFR","2025-06-03",{"date":78,"type":42},"2025-06-08",{"date":80,"type":42},"2025-05-12",{"date":82,"type":21},"2027-08",{"name":84,"class":49},"Medical University of Warsaw"]