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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03660969
Other study ID # BASEL XII
Secondary ID Research Grant
Status Recruiting
Phase
First received
Last updated
Start date January 1, 2018
Est. completion date January 1, 2027

Study information

Verified date December 2022
Source University Hospital, Basel, Switzerland
Contact Jeanne du Fay de Lavallaz, MD
Phone +41 61 2652525 (Zentrale)
Email jeanne.dufaydelavallaz@usb.ch
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Visits to the emergency department (ED) for chest pain are extremely common and require a safe, rapid and efficacious treatment algorithm to exclude a possible AMI. These diagnostic algorithms are partly based on an important laboratory value, which showed growing utility in the diagnostic and prognostic of many cardiovascular diseases in the last years : cardiac troponin. However, some patients with muscle disease often present with unexplained elevated high-sensitive cardiac Troponin T (hs-cTnT) levels in the absence of cardiac disease. The investigators aim at the characterization of the behaviour of this biomarker and its alternative (high-sensitive cardiac Troponin I), which will have important clinical implications on patients management.


Description:

Introduction: The detection of cardiomyocyte injury as quantified by blood concentrations of cardiac troponin T (cTnT) or I (cTnI) is central in the diagnosis of acute myocardial infarction (AMI). While multiple cardiac disorders other than AMI may also lead to cardiomyocyte injury and therefore elevations in cTnT and cTnI, latest generations of cTnT and cTnI assays are considered to have near exclusive cardiac-specificity. Overall, both analytes (cTnT and cTnI) seem to have comparable diagnostic accuracy among patients presenting with suspected AMI to the emergency department (ED). However, their use in the diagnosis of AMI in patients with a skeletal muscle disease is questioned, as especially cTnT was found to be elevated in this setting. These increased cTnT levels have been successively attributed to a possible re-expression of cTnT isoforms in the diseased muscle, to a primary cardiac involvement associated with the muscle disease or to a cross-reaction of the hs-cTnT assay with TnT of muscle origin. Aim: To characterize cTn levels in patients with a skeletal muscle disease to assess their utility in the field of cardiology (through their implication in AMI diagnosis and their diagnostic and prognostic accuracy regarding a possible cardiac involvement) and in the field of neurology (for the detection and risk-stratification of the muscle disorder itself). Methodology: This study will be conducted at the University Hospital of Basel, at the Kantonsspital Aarau, both in Switzerland, and at the University Hospital of Innsbruck, Austria. A prospective cohort patient will be recruited through the neurology, rheumatology and cardiology clinics of these three hospitals. This prospective cohort of patients presenting with skeletal muscle disease will allow us to systematically screen patients for cTn increases, to investigate the prevalence and characteristics of a possible primary cardiac involvement (as documented by electrocardiogram, echocardiography, magnetic resonance imaging, cTnI, NT-proBNP (N-terminal pro-B-type Natriuretic Peptide) and any available further cardiac testing) and to explore the origins of the elevated cTn levels using muscle biopsies. Furthermore, this prospective cohort will document the role of these biomarkers in the diagnosis, prognosis and risk-stratification of the muscle disease. Patients will receive a 1- and 3-year follow-up visit with blood draw in order to measure cTn and other biomarkers and record the impact of the evolution and treatment of the muscle disease on these levels. Major adverse cardiac events including cardiovascular death, AMI, hospitalization for heart failure, and the development of clinical or subclinical heart failure as quantified by elevated blood concentrations of NT-proBNP will be recorded during follow-up. Potential significance: Elevated cTnT levels do not only have consequences regarding the diagnosis of AMI but also raise many questions regarding their possible use as a diagnostic, prognostic and risk-stratification marker regarding the different muscle injuries and their possible primary cardiac involvement.


Recruitment information / eligibility

Status Recruiting
Enrollment 800
Est. completion date January 1, 2027
Est. primary completion date January 1, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Diagnostic or suspicion of muscle disease as presence of specified keyword in patient's file or as screened by colleagues of the rheumatology, neuromuscular or other medical clinics. - Patient consent available Exclusion Criteria: - Patient's refusal - Age <18 years old - Terminal kidney insufficiency with need for dialysis. - Temporary exclusion criteria : Acute health condition such as myocardial infarction, patients presenting with a major trauma, a sepsis, patients shortly after cardiac surgery, and patients in shock (>100 bpm, <90 systolic BP, evidence of organ dysfunction).

Study Design


Locations

Country Name City State
Austria Medical University Innsbruck Innsbruck
Switzerland Canton Hospital of Aarau Aarau Aargau
Switzerland University Hospital Basel Basel
Switzerland Inselspital Bern Bern
Switzerland University Hospital Zürich Zürich

Sponsors (5)

Lead Sponsor Collaborator
Christian Müller, MD Cantonal Hospital of Aarau, Switzerland, Medical University Innsbruck, University Hospital Inselspital, Berne, University Hospital, Zürich

Countries where clinical trial is conducted

Austria,  Switzerland, 

References & Publications (2)

Jaffe AS, Vasile VC, Milone M, Saenger AK, Olson KN, Apple FS. Diseased skeletal muscle: a noncardiac source of increased circulating concentrations of cardiac troponin T. J Am Coll Cardiol. 2011 Oct 18;58(17):1819-24. doi: 10.1016/j.jacc.2011.08.026. Epub 2011 Sep 29. — View Citation

Schmid J, Liesinger L, Birner-Gruenberger R, Stojakovic T, Scharnagl H, Dieplinger B, Asslaber M, Radl R, Beer M, Polacin M, Mair J, Szolar D, Berghold A, Quasthoff S, Binder JS, Rainer PP. Elevated Cardiac Troponin T in Patients With Skeletal Myopathies. J Am Coll Cardiol. 2018 Apr 10;71(14):1540-1549. doi: 10.1016/j.jacc.2018.01.070. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Research on the development of a new cTnT-assay 3 years
Other Protein characterization 3 years
Other Cardiac troponin as predictors or screening tools for a cardiac involvement 3 years
Other Cardiac troponin as predictor of evolution and therapeutic response of the muscle disease or muscle regeneration. 3 years
Other Characterisation of cardiac troponin in diseases of various etiologies involving muscles 3 years
Other Impact of muscle symptoms on cardiac troponin 3 years
Other Cardiac troponin versus other markers (e.g. CK) of inflammation/necrosis of peripheral muscles. 3 years
Primary Comparison of cTnT and cTnI levels as measured by different hs-cTn assays in patients with skeletal muscle disease. 1 year
Secondary Comparison of levels of cTnT and cTnI as measured by hs-assays in matched patients with and without skeletal muscle disease. 1 year
Secondary Regression model of diverse patients' characteristics on levels of hs-cTnI and hs-cTnT in the context of skeletal muscle disease versus no skeletal muscle disease. 1 year
Secondary Prognostic value of hs-cTn levels in patients with and without skeletal muscle disease. 3 years
Secondary Characterization of cTnT and cTnI on skeletal muscle biopsies from myopathic patients. 1 year
Secondary Characterization of the impact of cTnT and cTnI on the diagnosis and prognosis of muscle diseases Prognosis defined as the incidence of Major Cardiovascular Events (MACE is defined as a composite of death, acute myocardial infarction, life-threatening arrhythmia (cardiac arrest, sustained ventricular tachycardia, atrioventricular (AV) -block III), cardiac arrest/reanimation, acute heart failure (requiring admission to a hospital or intra-hospital transfer to the intensive care unit), stroke/transient ischemic attack, pulmonary embolism) 3 years
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