An interventional study of Cardiac Shock Wave Therapy in Myocardial Infarction With Non-obstructive Coronary Arteries and Cardiac Shock Wave Therapy, sponsored by Ya-Wei Xu. Recruiting at 1 site in China. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2023-11-18.
Sponsored by Ya-Wei Xu · Not applicable, Interventional, and Treatment
Myocardial infarction with non-obstructive coronary arteries (MINOCA) accounts for 15% of all myocardial infarctions and its mortality rate approaches that of large vessel myocardial infarction, but there are currently no effective treatment options. Coronary microvascular dysfunction is an important mechanism of MINOCA and is closely related to adverse cardiovascular outcomes.
The prospective trial aimed to verify the safety and effectiveness of cardiac shock wave therapy (CSWT) in the treatment of Myocardial infarction with non-obstructive coronary arteries (MINOCA), and to expand the scope of clinical indications for CSWT and provide new treatment strategy for MINOCA.
All participants will be fully informed of the study protocol, and informed consent will be obtained from each patient before the study. The inclusion criteria include: 1) Aged between 18 and 85 years old; 2) The initial diagnosis is acute myocardial infarction; 3) Coronary angiography shows coronary stenosis \<50%; 4) Abnormal D-SPECT myocardial perfusion images; 5) Voluntary informed consent signed.
The exclusion criteria include: 1) Previous history of coronary heart disease, received percutaneous coronary intervention, coronary artery bypass surgery or myocardial infarction (MI); 2) Hemodynamic instability; 3) Acute heart failure; 4) Severe valvular heart disease requiring surgical treatment; 5) Severe liver and kidney diseases; 6) Malignant tumors with an expected survival of less than one year; 7) Patients with severe bleeding tendency; 8) Pregnant women; 9) Intervening coronary ischemic events.
Based on the literature and the number of participants with myocardial infarction in the hospital, the sample size calculated according to the formula is about 50 cases. Considering the dropout rate of 10%, the sample size should be 56 cases.
56 patients are randomly divided 1:1 by computer into the CSWT group and Control group, with 28 MINOCA participants in each group. Participants in the CSWT group are treated with conventional medical therapy (including antiplatelet drugs, statins, and antianginal drugs), combined with CSWT, and those in the Control group were treated with conventional medical therapy and sham CSWT. Care providers and physicians who follow participants (parameters of this study) should be blinded to group assignment. CSWT is performed according to the recommended protocol on shock wave output and the number of shots delivered per point developed by Tohoku University, Japan, and with protocol equipment (Modulith SLC; Storz Medical, Switzerland) developed by the University of Essen, Germany. CSWT is performed three times a week (days 1, 3, and 5) in a session with a 3-month interval between sessions or 1-month intensive treatment. 40 The participants underwent CSWT for 3 months and 9 CSWT sessions were performed in total. Participants in the control group received sham CSWT, the energy of cardiac shock wave therapy was the lowest, and the water bladder was in contact with the skin but not close to the skin.
Examinations in this prospective trial include D-SPECT, blood biochemical examination, myocardial marker, and cardiopulmonary exercise testing. During follow-up, investigators will record major adverse cardiovascular events, and adverse events caused by other treatments. The safety and effectivity of CSWT will be verified by clinical parameters, D-SPECT, and peak oxygen consumption in CPET.
29 studies on the registry are indexed under MINOCA; 18 are open to participants now.
Browse MINOCA studies →Ya-Wei Xu is the lead sponsor of 10 studies on the registry; 2 are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CSWT is performed three times a week (days 1, 3, and 5) in a session with a 3-month interval between sessions or 1-month intensive treatment.
Device: Cardiac Shock Wave Therapy
Patients in the control group receive sham CSWT, the energy of cardiac shock wave therapy was the lowest, and the water bladder was in contact with the skin but not close to the skin.
Device: Cardiac Shock Wave Therapy
When operating CSWT, it is necessary to determine the target myocardium for treatment, adjust the height of the water bladder, set the energy that the patient can tolerate, and then start the treatment. During the treatment, the vital signs of the subjects should be detected.
Change from baseline myocardial infarct area at 6 months
The location and extent of myocardial infarction were determined by D-SPECT.
Time frame: 1 day of inclusions and 6 months after the first treatment.
Change from baseline peak oxygen consumption at 6 months
maximum kilogram oxygen uptake accessed during Cardiopulmonary Exercise Testing (CPET)
Time frame: 1 day of inclusions and 6 months after the first treatment.
Change from baseline myocardial marker at 6 months
creatine kinase phosphate-isozyme (CK-MB) in blood samples
Time frame: 1 day of inclusions and 6 months after the first treatment.
Change from baseline hepatorenal function indexes at 6 months
alanine aminotransferase (ALT), aspartate aminotransferase (AST), and serum creatinine (SCr) in blood samples
Time frame: 1 day of inclusions and 6 months after the first treatment.
Major adverse cardiovascular events (MACE)
cardiovascular death, non-fatal myocardial infarction, unplanned coronary revascularization, stroke, heart failure, and angina-related rehospitalization
Time frame: From the date of inclusion until the date of documented adverse events with 6 months
Other treatment-related adverse reactions
Time frame: From the date of inclusion until the date of treatment-related adverse reactions within 6 months
Plan to share: Yes
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