Clinical Trials Monitor/
RecruitingNCT06887387

Application of Wearable Devices for Remote QT Interval Monitoring and Symptom Investigation for Patients With Long QT Syndrome

Sponsor: Queen Mary University of London

Trial Details

ConditionLong QT Syndrome
InterventionWearable device
StatusRecruiting
Participants80
Est. Completion4 Sept 2026
Last Updated19 May 2026

Primary Outcome

1. Determine the accuracy of repeated QT interval measurements using Fitbit-derived ECGs in patients with Long QT syndrome compared with the current standard (12-lead ECG and ambulatory monitors); 2. Establish intra-patient QT variability from weekly Fitbit-ECGs and frequency of measurements over 500ms.

Eligibility Criteria

Inclusion Criteria

Inclusion Criteria: * Clinical diagnosis of Long QT Syndrome * Aged 18 years or over * Phone with iOS version 15 or Android OS 9.0 or higher * Able and willing to provide informed consent Exclusion Criteria: * Unwilling or unable to give consent * Ventricular pacing at recruitment * Bundle branch block or pre-excitation at baseline

Trial Sites

Countries

United Kingdom
View Registry Entry

Related Analysis

Fitbit ECG Monitoring Trial for Long QT Syndrome Opens: Validating Wearable Technology Against Standard Cardiac Surveillance

New UK trial validates Fitbit ECG technology for Long QT Syndrome monitoring, comparing consumer wearable accuracy against standard 12-lead ECG surveillance. Study could transform routine cardiac monitoring for hereditary arrhythmia patients.

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