[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100566495":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":20,"centralContacts":25,"locations":36,"responsibleParty":61,"collaborators":65,"id":67,"slug":68,"hasResults":69,"nctId":70,"briefTitle":71,"officialTitle":72,"acronym":73,"eligibilityCriteria":74,"healthyVolunteers":69,"sex":75,"minAge":76,"maxAge":10,"enrollmentInfo":77,"targetDuration":80,"studyType":81,"phases":10,"briefSummary":82,"conditions":83,"keywords":85,"overallStatus":38,"whyStopped":10,"lastUpdateSubmitDate":91,"lastUpdatePostDateStruct":92,"startDateStruct":95,"completionDateStruct":97,"leadSponsor":99,"locationsCount":100},{"fullName":5,"class":6},"Beijing Chao Yang Hospital","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Patients with at least one untreated CTO at basal angiography",null,"Total occlusion in any major coronary vessel or relevant side branches \\[reference vessel diameter ≥2.5mm or as judged by two independent interventional cardiologists\\], with TIMI 0 in the distal segment and at least 3 months old",[13],"Diagnostic Test: FAPI Imaging",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":10},"DIAGNOSTIC_TEST","FAPI Imaging","Studies have shown that imaging with radionuclide-labeled fibroblast activation protein inhibitor (FAPI) is a reliable technique for detecting myocardial fibrosis and activated CFs in arteries. Preliminary evidence suggests that FAPI imaging can assess plaque characteristics and the status of myocardial fibrosis in various cardiovascular diseases.",[9],[21],{"name":22,"affiliation":23,"role":24},"Lin Zhao, Ph.D MD","Beijing Chaoyang Hospital, Capital Medical University, Beijing, China","PRINCIPAL_INVESTIGATOR",[26,32],{"name":27,"role":28,"phone":29,"phoneExt":30,"email":31},"Shengwen Yang, Ph.D, MD","CONTACT","+8617801014018","+8601085231480","verayang1990@163.com",{"name":33,"role":28,"phone":34,"phoneExt":30,"email":35},"Bin Tu, Ph.D MD","+8618810682692","dr_bintu@163.com",[37,55],{"facility":23,"status":38,"city":39,"state":40,"zip":41,"country":42,"countryCode":43,"cosmosGeoPoint":44,"geoPoint":49,"contacts":50},"RECRUITING","Beijing","Beijing Municipality","100020","China","CN",{"type":45,"coordinates":46},"Point",[47,48],116.39723,39.9075,{"lat":48,"lon":47},[51],{"name":52,"role":28,"phone":53,"phoneExt":54,"email":31},"Shengwen Yang, Ph.D MD","+86-17801014018","+8685231480",{"facility":23,"status":38,"city":39,"state":40,"zip":41,"country":42,"countryCode":43,"cosmosGeoPoint":56,"geoPoint":58,"contacts":59},{"type":45,"coordinates":57},[47,48],{"lat":48,"lon":47},[60],{"name":52,"role":28,"phone":30,"phoneExt":10,"email":31},{"type":62,"investigatorFullName":63,"investigatorTitle":64,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"SPONSOR_INVESTIGATOR","Lin Zhao","Cheif of Cardiovascular department",[66],{"name":5,"class":6},"100566495","fapi-imaging-assessment-of-chronic-total-occlusion-100566495",false,"NCT06655922","FAPI Imaging Assessment of Chronic Total Occlusion","The Clinical Value of FAPI Imaging in Assessing Chronic Total Occlusion Lesions in Patients with Coronary Heart Disease (FACT Trial)","FACT","Inclusion Criteria:\n\n* Age \\> 18 years\n* Presence of at least one untreated CTO at basal angiography (defined as a total occlusion in any major coronary vessel or relevant side branches \\[reference vessel diameter ≥2.5mm or as judged by two independent interventional cardiologists\\], with TIMI 0 in the distal segment and at least 3 months old\n* Patient has a clinical indication to perform CTO PCI\n* Willing to participate and able to understand, read and sign the informed consent document.\n\nExclusion Criteria:\n\n* Hypersensitivity to aspirin, clopidogrel, or -limus families \u002F or contraindication to antiplatelet agents\n* Severe hepatic dysfunction (≥3 times normal reference values)\n* Severe chronic kidney disease (estimated Glomerular Filtration Rate \\[eGFR\\] \\<30 mL\u002Fmin\u002F1.73m2)\n* Life expectancy \\< 1 years\n* Pregnant women or women with potential childbearing","ALL","18 Years",{"count":78,"type":79},167,"ESTIMATED","2 Years","OBSERVATIONAL","This registry will include consecutive patients presenting with at least one chronic total coronary occlusion (CTO) identified via coronary angiography or cardiac computed tomography angiography (CCTA) at our center. Due to the complexity of CTO lesions, both procedural success rates and prognosis improvements are limited. The progression and development of atherosclerotic plaques involve fibroblast activity, contributing to the formation of fibrous caps and calcified nodules through various mechanisms. Myocardial fibrosis within chronically occluded segments is strongly linked to ventricular remodeling and patient prognosis. The activation of cardiac fibroblasts (CFs) is a critical early phase in myocardial fibrosis, playing a key role in fibrotic progression. However, the role of activated CFs in CTO patients has remained unclear, mainly due to the lack of reliable in vivo assessment techniques for detecting CF activation.\n\nRecent studies have demonstrated that radionuclide-labeled fibroblast activation protein inhibitor (FAPI) imaging is an effective and reliable technique for detecting both myocardial fibrosis and activated CFs in arterial plaques. Preliminary data suggest that FAPI imaging can characterize plaque composition and assess the extent of myocardial fibrosis in various cardiovascular conditions. However, its potential to predict the ease of CTO recanalization and subsequent clinical outcomes remains to be fully explored.\n\nThe aim of this prospective cohort study is to evaluate the predictive value of FAPI imaging in patients with at least one untreated CTO. All enrolled patients will undergo baseline assessments prior to intervention, including blood tests, clinical evaluations, and imaging studies. These imaging studies will include myocardial FDG\u002Fperfusion imaging, FAPI imaging, and resting perfusion imaging. In selected patients, additional evaluations such as stress myocardial perfusion imaging, magnetic resonance imaging (MRI), and echocardiography will also be performed.\n\nFor patients undergoing percutaneous coronary intervention (PCI), follow-up assessments will occur at 6 and 12 months. At the 6-month mark, improvements in left ventricular (LV) wall motion will be assessed using resting perfusion imaging. At 12 months, coronary angiography (CAG) will be performed on all patients to evaluate recanalization outcomes. Additionally, myocardial perfusion imaging, magnetic resonance imaging (MRI), and echocardiography may be selectively used to evaluate patients during the 12-month follow-up.\n\n1. To evaluate the ability of FAPI imaging in predicting the difficulty of CTO recanalization.\n2. To investigate the role of myocardial FAPI imaging in predicting the improvement of LV wall motion at 6 months, assessed using follow-up single-photon emission computed tomography (SPECT).\n\nBy comparing FAPI imaging with conventional prognostic assessment methods, this study aims to clarify the utility of FAPI imaging in both predicting the recanalization complexity and in assessing long-term clinical outcomes in CTO patients.",[84],"Chronic Total Occlusion (CTO)",[86,87,88,89,90],"Coronary Heart Disease","Fibroblast activation protein inhibitor","Percutaneous coronary intervention","Imaging","Prognosis","2024-10-22",{"date":93,"type":94},"2024-10-24","ACTUAL",{"date":96,"type":94},"2024-09-10",{"date":98,"type":79},"2026-08-31",{"name":63,"class":6},2]