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RecruitingNCT05521451TRUSTUpdated Mar 30, 2025

Clinical Cohort Study - TRUST

An observational study in Arrhythmias, Cardiac, Atrial Fibrillation and Atrial Flutter, sponsored by Universitätsklinikum Hamburg-Eppendorf. Recruiting at 1 site in Germany. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-30.

Sponsored by Universitätsklinikum Hamburg-Eppendorf · Observational

From the registry’s dates

  • Started Mar 2021; still recruiting 5 years 7 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
5,000
Ages
18 Years and older
Sex
All
01

Study summary

The "Long-term Outcome and Predictors for Recurrence after Medical and Interventional Treatment of Arrhythmias at the University Heart Center Hamburg" (TRUST) study is an investor-initiated, single-center, prospective clinical cohort study including patients treated with cardiac arrhythmias or at high risk for cardiac arrhythmias. The design enables prospective, low-threshold, near complete inclusion of patients with arrhythmias treated at the UHZ. Collection of routine follow-up data, detailed procedural information and systematic biobanking will enable precise and robust phenotyping.

Read the detailed description

Arrhythmias such as atrial fibrillation, ventricular tachycardia, and sudden death remain major causes of morbidity and mortality. Their prevalence increases in our ageing populations. Modern therapy of these conditions, using a combination of drugs, devices, and interventions, can reduce the disease burden associated with cardiac arrhythmias. This prospective cohort study will collect detailed clinical, procedural, and outcome information in a large cohort of patients with arrhythmias seen in a tertiary care center. Clinical phenotyping will be enhanced by biosampling and analysis of circulating biomolecules. Digital capture of clinical information and of follow-up data is planned.

02

Conditions studied

  • Arrhythmias, Cardiac
  • Atrial Fibrillation
  • Atrial Flutter
  • Ventricular Tachycardia
  • Atrial Tachycardia
  • Arrhythmogenic Right Ventricular Dysplasia
  • Long QT Syndrome
  • Brugada Syndrome
  • Supraventricular Tachycardia
  • Catecholaminergic Polymorphic Ventricular Tachycardia
  • Torsades De Pointes
  • Atrial Cardiomyopathy

Keywords

  • Catheter Ablation
  • Biomarkers
  • Cardiac Arrhythmia
  • eHealth
  • Digital Cardiology
  • Echocardiography
  • Atrial Cardiomyopathy
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In context

Arrhythmias, Cardiac

1,051 studies on the registry are indexed under Arrhythmias, Cardiac; 236 are open to participants now.

This study's planned enrollment of 5,000 is above the median of 200 across 467 observational studies indexed under Arrhythmias, Cardiac.

Browse Arrhythmias, Cardiac studies →

Lead sponsor

Universitätsklinikum Hamburg-Eppendorf is the lead sponsor of 416 studies on the registry; 86 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients seen in the Department of Cardiology of the University Heart and Vascular Center Hamburg suffering from cardiac arrhythmias, including congenital cardiac arrhythmias, or being at high risk for cardiac arrhythmias.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Cardiac arrhythmia, including congenital cardiac arrhythmia diagnosed at baseline or high risk for cardiac arrhythmia
  • Age ≥ 18 years
  • Written
  • Ability to provide written informed consent in accordance with Good Clinical Practice and local legislation

Exclusion criteria

Exclusion Criteria:

  • Insufficient knowledge of the German language to understand study documents and interview without translation
  • Physical or psychological incapability to cooperate in the investigation
Terms in these criteria, in plain language(1)

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.

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.

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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
5,000 participants (estimated)
Target follow-up
10 Years
Patient registry
Yes
Biospecimen retention
Samples with dna
06

What researchers measure

Primary outcomes

  1. Time to a composite of cardiovascular mortality, stroke, acute coronary syndrome and heart failure hospitalization

    The main primary outcome measures the time until any of death from cardiovascular cause, stroke or TIA or a hospitalization due to heart failure or acute coronary syndrome occurs for the first time after inclusion. The outcome is measured via telephone and / or in-person follow-up, acquisition of all relevant medical records between inclusion and follow-up timepoint and a questionnaire sent to the patient. The follow-up can be completed fully electronically according to patient's wish.

    Time frame: Follow-up 5 years after inclusion

  2. New onset of cardiac arrhythmias, documented in clinical care and during systematic rhythm monitoring using digital devices.

    The outcome is measured via remote follow-up using consumer-electronics based remote rhythm monitoring technologies. Additionally, onset of new cardiac arrhythmias is assessed from medical records collected between follow-up timepoint and inclusion as well as questionnaires and a telephone call with the patient.

    Time frame: Follow-up 5 years after inclusion

Secondary outcomes

  1. Time to recurrence of the clinical arrhythmia

    The outcome is measured via remote follow-up using consumer-electronics based remote rhythm monitoring technologies. Additionally, onset of new cardiac arrhythmias is assessed from medical records collected between follow-up timepoint and inclusion as well as questionnaires and a telephone call with the patient.

    Time frame: Follow-up 5 years after inclusion

  2. New onset of heart failure

    This endpoint is defined as a new diagnosis of heart failure with (milly) reduced or preserved ejection fraction according to ESC guidelines. The patients medical record will be reassessed at the end of follow-up.

    Time frame: Follow-up 5 years after inclusion

  3. All-cause mortality (Safety Outcome)

    This endpoint is assessed during the telephone call during remote follow-up and - if not applicable - via consultation of the death registry.

    Time frame: Follow-up 5 years after inclusion

  4. Patient reported quality of life (QOL)

    As assessed via AF Effect on QualiTy of life survey at the timepoint of follow-up.

    Time frame: Follow-up 5 years after inclusion

  5. Health care utilisation

    Health care utilisation after inclusion is assessed during the telephone call of the remote follow-up as well as via acquisition of all medical records between follow-up timepoint and inclusion.

    Time frame: Follow-up 5 years after inclusion

  6. Complications of rhythm control therapy (Safety Outcome)

    This endpoint is assessed during the telephone call of the remote follow-up as well as via acquisition of all medical records between follow-up timepoint and inclusion.

    Time frame: Follow-up 5 years after inclusion

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Study locations

1 of 1 sites recruiting
  • University Hospital Hamburg-Eppendorf, University Heart and Vascular Center
    Hamburg, 20251, Germany
    Recruiting
    • Julius Obergassel, MD · Contacttrust@uke.de · +49 (40) 7410 - 58320
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References and documents

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 30, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05521451
Responsible party
Sponsor
First posted
Aug 30, 2022
Start date
Mar 17, 2021
Primary completion
Sep 30, 2026 (estimated)
Completion
Dec 31, 2031 (estimated)
Last update
Mar 30, 2025

Study contacts

Julius Obergassel, MD
Contact
trust@uke.de
+49 (40) 7410 - 58320
Paulus Kirchhof, MD
principal investigator · Universitätsklinikum Hamburg-Eppendorf
Andreas Metzner, MD
principal investigator · Universitätsklinikum Hamburg-Eppendorf
Andreas Rillig, MD
principal investigator · Universitätsklinikum Hamburg-Eppendorf

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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