Individualized Early Risk Assessment for Heart Diseases (IndivuHeart)
26. April 2019 aktualisiert von: Universitätsklinikum Hamburg-Eppendorf
Heart failure (HF) is the common end-stage of different medical conditions.
It is the only growing cardiovascular disease and its prognosis remains worse than that of many malignancies.
The lack of evidence-based treatment for patients with diastolic HF (HFpEF) exemplifies that the current "one for all" therapy has to be advanced by an individualized approach.
Inherited cardiomyopathies can serve as paradigmatic examples of different HF pathogenesis.
Both gain- and loss-of-function mutations of the same gene cause disease, calling for disease-specific agonism or antagonism of this gene´s function.
However, mutations alone do not predict the severity of cardiomyopathies nor therapy, because their impact on cardiac myocyte function is modified by numerous factors, including the genetic context.
Today, patient-specific cardiac myocytes can be evaluated by the induced pluripotent stem cell (hiPSC) technology.
Yet, unfolding the true potential of this technology requires robust, quantitative, high content assays.
The researchers' recently developed method to generate 3D-engineered heart tissue (EHT) from hiPSC provides an automated, high content analysis of heart muscle function and the response to stressors in the dish.
The aim of this project is to make the technology a clinically applicable test.
Major steps are (i) in depths clinical phenotyping and genotyping of patients with cardiomyopathies or HFpEF, (ii) follow-up of the clinical course, (iii) generation of hiPSC lines (40 patients, 40 healthy controls), and (iv) quantitative assessment of hiPSC-EHT function under basal conditions and in response to pro-arrhythmic or cardio-active drugs and chronic afterload enhancement.
The product of this study is an SOP-based assay with standard values for hiPSC-EHT function/stress responses from healthy volunteers and patients with different heart diseases.
The project could change clinical practice and be a step towards individualized risk prediction and therapy of HF.
Studienübersicht
Status
Unbekannt
Intervention / Behandlung
Detaillierte Beschreibung
At present, heart function in patients can only be analysed by imaging methods or hemodynamic measurements. This has dramatically changed by the discovery that hiPSC can be generated from somatic cells (e.g. fibroblasts) by transduction of pluripotency genes. The investigators and others have shown that pluripotent stem cells can be efficiently differentiated into beating cardiac myocytes. This allows for the first time to study the function of cardiac myocytes from an individual patient. However, at present, only alterations were reproduced in hiPSC cells that were known previously and important limitations have to be resolved:
- Immaturity of hiPSC-derived cardiac myocytes
- Variability of hiPSC-generation, cardiac myocyte differentiation and experimental analyses
- No readout of contractile force, the parameter mostly affected in heart failure
- No modeling of hemodynamic stress in vitro
- No statistically valid correlation of hiPSC-cardiac myocyte function with clinical/genetic data
- Uncertainty as to standard values and adequate controls
- Unclear predictive value
The research challenge for the coming years is to resolve these shortcomings. IndivuHeart formulates a number of hypotheses and goals that are based on the researchers' longstanding expertise in tissue engineering and recent, still unpublished data on the pathophysiology of HCM and its modeling in EHT. The study will
- reveal standard values for hiPSC-EHT function in a statistically valid manner, both under basal and stress conditions,
- define a "cardiomyopathy phenotype" in vitro,
- allow new mechanistic insight into the pathogenesis of human HCM and DCM,
- uncover HCM-like abnormalities in HFpEF,
- allow individualized drug testing (acute and chronic).
Studientyp
Beobachtungs
Einschreibung (Voraussichtlich)
80
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienorte
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Hamburg, Deutschland, 20246
- Department of Experimental Pharmacology and Toxicology
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Teilnahmekriterien
Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.
Zulassungskriterien
Studienberechtigtes Alter
18 Jahre bis 60 Jahre (Erwachsene)
Akzeptiert gesunde Freiwillige
Ja
Studienberechtigte Geschlechter
Alle
Probenahmeverfahren
Nicht-Wahrscheinlichkeitsprobe
Studienpopulation
Recruitment of patients will be done by the Cardiomyopathy Outpatient Clinic which is led by Dr. M. Patten and Dr. J. Münch at the Department of Cardiology, University Heart Centre, UKE (Prof.
Blankenberg).
Beschreibung
Inclusion Criteria:
- HCM: ProBNP ≥ 300 ng/l; IVSd ≥ 20 mm; E/E´ ≥ 8, LVOT > 30 mmHg
- DCM: presence of signs and/or symptoms of HF (NYHA II-IV); ProBNP ≥ 300 ng/l; LV EF ≤ 40% for > 3 month
Exclusion Criteria:
- Uncontrolled hypertension,
- coronary artery disease,
- persistent atrial fibrillation,
- enlisted for myectomy
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
Intervention / Behandlung |
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Control group
40 healthy volunteers will serve as control group.
Skin biopsy, genotyping and disease phenotyping
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Major steps of the project are (i) in depths clinical phenotyping and follow-up of the clinical course of probands (ii) genotyping of candidate genes involved in heart disease development and (iii) in vitro functional tests of engineered heart tissue (EHT), miniature beating heart muscles.
These EHTs are generated from hiPSC (human induced pluripotent stem cells) lines derived from skin biopsies of each participant.
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DCM patients
20 patients with dilated cardiomyopathy
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Major steps of the project are (i) in depths clinical phenotyping and follow-up of the clinical course of probands (ii) genotyping of candidate genes involved in heart disease development and (iii) in vitro functional tests of engineered heart tissue (EHT), miniature beating heart muscles.
These EHTs are generated from hiPSC (human induced pluripotent stem cells) lines derived from skin biopsies of each participant.
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HCM patients
20 patients with hypertrophic cardiomyopathy
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Major steps of the project are (i) in depths clinical phenotyping and follow-up of the clinical course of probands (ii) genotyping of candidate genes involved in heart disease development and (iii) in vitro functional tests of engineered heart tissue (EHT), miniature beating heart muscles.
These EHTs are generated from hiPSC (human induced pluripotent stem cells) lines derived from skin biopsies of each participant.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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generation of hiPSC-EHT and in vitro phenotyping
Zeitfenster: up to 60 month
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After generation of proband-specific 3D-engineered heart tissue (EHT) from hiPSC we will make a quantitative assessment of hiPSC-EHT function under basal conditions and in response to pro-arrhythmic or cardio-active drugs and chronic afterload enhancement.
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up to 60 month
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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clinical phenotyping and disease progression
Zeitfenster: up to 60 month
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All 40 patients will be subjected to (i) high-end echocardiography including tissue Doppler and speckle tracking technology, (ii) MRI, (iii) spiroergometry and (iv) 24 h-holter ECG monitoring.
Key parameters are guideline-recommended indices of systolic (e.g.
fractional shortening, ejection fraction) and diastolic heart function (e.g.
left atrial size, E/A, E'/A' and E/E´ratios), outflow tract gradient and cardiac remodeling (gadolinium late enhancement).
The latter will be only done in HCM/DCM for ethical reasons.
Technical analyses will be made at study entry and after 4 years, clinical examinations once a year (Cardiomyopathy Outpatient Clinic).
Patients and their treating physicians will be prompted to report any clinical event during the course of the study.
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up to 60 month
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genotyping
Zeitfenster: up to 60 month
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The genetic part of this project does not focus on the detection of new HCM/DCM disease genes, but on comprehensively determining the molecular basis of cardiomyopathy in the included patients. DNA samples will first be subjected to sequencing of a panel of about 120 cardiomyopathy-related candidate genes, which detects approximately 75% of all disease-causing mutations. The rest will be analysed by whole genome sequencing. The resulting sequence data will be processed using CASAVA, followed by subsequent analyses using the GATK software package provided through the Broad Institute (Boston, USA) and the commercial software CLC-BIO. |
up to 60 month
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Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Ermittler
- Hauptermittler: Thomas Eschenhagen, Prof.Dr.med., Universitatsklinikum Hamburg-Eppendorf
Publikationen und hilfreiche Links
Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.
Allgemeine Veröffentlichungen
- Takahashi K, Tanabe K, Ohnuki M, Narita M, Ichisaka T, Tomoda K, Yamanaka S. Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell. 2007 Nov 30;131(5):861-72. doi: 10.1016/j.cell.2007.11.019.
- Hansen A, Eder A, Bonstrup M, Flato M, Mewe M, Schaaf S, Aksehirlioglu B, Schwoerer AP, Uebeler J, Eschenhagen T. Development of a drug screening platform based on engineered heart tissue. Circ Res. 2010 Jul 9;107(1):35-44. doi: 10.1161/CIRCRESAHA.109.211458. Epub 2010 May 6. Erratum In: Circ Res. 2011 Nov 11;109(11):e54. Schworer, Alexander [corrected to Schwoerer, Alexander P].
- Eschenhagen T, Fink C, Remmers U, Scholz H, Wattchow J, Weil J, Zimmermann W, Dohmen HH, Schafer H, Bishopric N, Wakatsuki T, Elson EL. Three-dimensional reconstitution of embryonic cardiomyocytes in a collagen matrix: a new heart muscle model system. FASEB J. 1997 Jul;11(8):683-94. doi: 10.1096/fasebj.11.8.9240969.
- Madsen A, Hoppner G, Krause J, Hirt MN, Laufer SD, Schweizer M, Tan WLW, Mosqueira D, Anene-Nzelu CG, Lim I, Foo RSY, Hansen A, Eschenhagen T, Stenzig J. An Important Role for DNMT3A-Mediated DNA Methylation in Cardiomyocyte Metabolism and Contractility. Circulation. 2020 Oct 20;142(16):1562-1578. doi: 10.1161/CIRCULATIONAHA.119.044444. Epub 2020 Sep 4. Erratum In: Circulation. 2021 Apr 13;143(15):e830.
Studienaufzeichnungsdaten
Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.
Haupttermine studieren
Studienbeginn
1. Juni 2014
Primärer Abschluss (Voraussichtlich)
1. Juni 2019
Studienabschluss (Voraussichtlich)
1. Juni 2019
Studienanmeldedaten
Zuerst eingereicht
16. März 2015
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
10. April 2015
Zuerst gepostet (Schätzen)
15. April 2015
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
29. April 2019
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
26. April 2019
Zuletzt verifiziert
1. April 2019
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 0174/134/2-1
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