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Scandinavian Multicenter Study to Advance Risk Stratification in Heart Disease- Ventricular Arrhythmias (SMASH 1)

2. juni 2020 opdateret af: Torbjorn Omland, University Hospital, Akershus

Scandinavian Multicenter Study to Advance Risk Stratification in Heart Disease- Ventricular Arrhythmias: A Multicenter, Observational Trial

The purpose of this study is to identify markers of increased risk for incident ventricular arrhythmias and cardiovascular events in patients already being treated with an implantable cardioverter-defibrillator (ICD) by exploring patient history and clinical findings, biological markers, ECG markers, and echocardiographic markers.

Studieoversigt

Detaljeret beskrivelse

This is a multicenter prospective cohort study to assess the prognostic value of potential biomarkers for incident ventricular arrhythmias and cardiovascular events in patients with implantable cardioverter-defibrillator (ICD). In addition to information from the baseline visit and future study visits, the investigators will also register information from the patients medical records concerning comorbidities and previous medical events.

The data will be summarized with respect to demographic and baseline characteristics and risk markers/ measurements. The final diagnosis of incident cardiovascular events will be established by an adjudication committee with two senior physicians reviewing all information available on the patients, including information on the clinical outcome of the patient. The investigators will use multivariate statistical models to assess the individual performance of biomarkers/other tests.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

504

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

      • Lørenskog, Norge, 1478
        • Akershus University Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients treated with an ICD. Inclusion from outpatient clinic.

Beskrivelse

Inclusion Criteria:

  • Patients ≥ 18 years old
  • Current treatment with an ICD
  • Signed written informed consent before study commencement

Exclusion Criteria:

  • Participation in other interventional clinical trial or previously included in the current study
  • Patients not able to provide written informed consent
  • Known or suspected, non-curable cancer,
  • Neurological condition with short life expectancy; e.g. amyotropic lateral sclerosis (ALS)
  • Patients unwilling or unable to comply with the protocol
  • History of non-compliance to medical management and patients who are considered potentially unreliable by the Investigator
  • History or evidence of alcohol or drug abuse with the last 12 months that may influence the participation of the patient in the study, as assessed by the Investigator during the screening phase
  • Any surgical or medical condition, which in the option of the Investigator, will impair the ability of the patient to participate in the study

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: Kohorte
  • Tidsperspektiver: Fremadrettet

Kohorter og interventioner

Gruppe / kohorte
1
Derivation cohort (n=474); may be analyzed separately or combined with cohort #2 to enhance statistical power
2
Validation cohort (patient #475 and after); may be combined with cohort #1 to enhance statistical power

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Episodes of ventricular fibrillation (VF) or ventricular tachycardia (VT) resulting in appropriately delivered ICD therapies (including antitachycardia pacing) or sustained ventricular tachyarrhythmia (>100/min, >30sek).
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Registered from the monitoring function of the ICD
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.

Sekundære resultatmål

Resultatmål
Tidsramme
All-cause mortality
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Cardiovascular mortality
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Major adverse cardiac event (MACE), i.e. acute myocardial infarction, stroke, urgent myocardial revascularization and cardiovascular mortality
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Heart failure hospitalization
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
The combination of cardiovascular mortality and heart failure hospitalizations
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Number of premature ventricular complexes (PVCs) and non-sustained VT (> 3 coupled PVCs) registered from the monitoring function of the ICD
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
New occurrence of supra-ventricular arrhythmias (i.e. atrial fibrillation, atrial flutter, atrial tachycardia etc.)
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Episodes of ventricular- or supra-ventricular arrhythmias (specified above) registered from the monitoring function of the ICD.
Tidsramme: Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.
Duration of follow-up will be a minimum of 180 days following inclusion of the final patient.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Ledende efterforsker: Torbjørn Omland, MD,PhD, MPH, Professor of Medicine

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. august 2016

Primær færdiggørelse (Faktiske)

31. december 2019

Studieafslutning (Forventet)

1. december 2050

Datoer for studieregistrering

Først indsendt

1. juli 2016

Først indsendt, der opfyldte QC-kriterier

11. august 2016

Først opslået (Skøn)

12. august 2016

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. juni 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. juni 2020

Sidst verificeret

1. juni 2020

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2015/2080

Plan for individuelle deltagerdata (IPD)

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