Using Apple Watch data to predict heart failure outcomes

Predicting Heart Failure Recovery by Wearables and Machine Learning

Observational University Medical Center Goettingen · NCT06819618

This study is testing if data from Apple Watches can help predict heart failure problems and the chances of needing to go back to the hospital for patients with heart failure.

Quick facts

Study typeObservational
Enrollment32 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Medical Center Goettingen Academic / other
Locations1 site (Goettigen, Lower Saxony)
Trial IDNCT06819618 on ClinicalTrials.gov

What this trial studies

This observational study aims to determine how effectively data collected from Apple Watch can predict the heart failure status of patients experiencing decompensation. By extracting physiological data such as ECG readings, SpO2 levels, respiratory rates, and step counts, the study will utilize machine learning techniques to forecast risks of decompensation and rehospitalization. The research builds on previous findings that highlight the correlation between wearable device metrics and clinical outcomes in heart failure patients, advancing the use of multimodal data for risk assessment.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 17 years old with heart failure with reduced ejection fraction who have been hospitalized for decompensated heart failure.

Not a fit: Patients with a life expectancy of less than 6 months due to non-cardiac conditions or those unable to use a smartwatch may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance early detection and management of heart failure, potentially reducing hospitalizations and improving patient outcomes.

How similar studies have performed: Previous studies have shown promise in using wearable devices for cardiovascular assessments, indicating that this approach may yield valuable insights, although the specific combination of methods in this study is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age over 17
* HFrEF with LV-EF under 41
* hospitalized for decompensated heart failure with a) nTproBNP over 1000 AND b) willing to participate AND c) at least one out of three clinical signs (edema, pleural effusion, ascites)

Exclusion Criteria:

* life expectancy under 6 months due to non-cardiac conditions
* inability to use smartwatch
* severe valvular lesions

Where this trial is running

Goettigen, Lower Saxony

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Heart Failure with Reduced Ejection FractionHeart FailureHeart Failure,CongestiveHeart Failure Acutewith DecompensationWearablesMonitoringApple Watch
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.