Condition: Myocardial Infarction · Myocardial Injury · Myocardial Inflammation · Sponsor: Wuerzburg University Hospital
The adaptive immune response plays an important role in myocardial healing and remodeling after acute myocardial infarction in patients. Therefore, the involved lymphocytes represent a novel target for therapeutic interventions. However, there are no established blood-derived biomarkers to predict the quantity and quality of the adaptive immune response to cardiac injury. Multimodal imaging of the heart and immunologic organs might provide such information. Recent retrospective analysis of patients after MI revealed enlarged mediastinal lymph nodes associated with increased CXCR4 radiotracer accumulation, thereby indicating that CXCR4 PET-based lymph node imaging provides a non-invasive quantitative readout of the local adaptive immune response. These considerations are further fuelled by the fact that, within lymph nodes, CXCR4 is expressed almost exclusively on lymphocytes, whereas various other cell types express CXCR4 within the myocardium. This leads to the hypothesis that the size of mediastinal lymph nodes and their respective CXCR4 PET signals correlate with the adaptive immune response to cardiac injury and might provide predictive information for functional cardiac decline during follow-up. This prospective clinical study will use multimodal imaging to monitor chemokine receptor 4 (CXCR4) expression in the lymph nodes, myocardium, spleen, and bone marrow after acute MI. The combination of cardiac magnetic resonance (CMR), echocardiography, and positron emission t…
This description comes directly from the study's public registry record.
Theresa Reiter, MD · +4993120139944 · reiter_t@ukw.de
Rudolf Werner, MD · +4993120135906 · werner_r1@ukw.de
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| Klinikum Würzburg Mitte, Medizinische Klinik | Würzburg, Germany | Recruiting |
| University Hospital Wuerzburg | Würzburg, Germany | Recruiting |
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Source record: clinicaltrials.gov/study/NCT05519735