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CompletedNCT03037710LINK-HFUpdated Aug 5, 2020

Link-HF: Multisensor Non-invasive Telemonitoring System for Prediction of Heart Failure Exacerbation

An observational study in Cardiac Failure, sponsored by Josef Stehlik. Completed at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-08-05.

Sponsored by Josef Stehlik · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
100
Ages
18 Years and older
Sex
All
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Study summary

This is a multi-center, non-randomized, non-interventional study to evaluate the accuracy of a remote monitoring and analytical platform for prediction of heart failure exacerbation. The platform acquires continuous multivariate vital signs from HF patients using a new ambulatory wearable (attached by an adhesive) multi-sensor device and analyzes the data using a novel machine learning algorithm.

Read the detailed description

The analytics being investigated includes a Similarity-Based Modeling technique, that empirically estimates the expected physiological behavior of a subject based on prior learned dynamic data, for comparison to actual measured behavior from the subject, to reveal discrepancies hidden by normal variation. The measurements are typically an ensemble of vital signs that effectively characterizes the physiological "control system" of the subject. This technique is multivariate: multiple variables are leveraged, because single variables in isolation have little context - a high heart rate by itself could mean a person is exerting himself, or it could mean his physiology is in distress even though he is not exerting himself. With reference to several other variables, however, such as respiration rate, oximetry and motion/activity, a high heart rate might be recognized as a normal state when accompanied by the corroborating data showing a high respiration rate, a normal oximetry and a high level of motion - the person is exercising.

A wearable adhesive multi-sensor device will be used to collect continuous vital sign and other data from study subjects, including heart rate, respiration rate, bodily motion/activity, skin temperature, pulse, electrocardiogram and peripheral capillary oxygen saturation. Subjects are provided with a smartphone or cellular tablet that will be paired with the multi-sensor device to receive data and upload it to the analytics server via cellular network or WiFi internet. Study staff will interact with the subject during visits scheduled for routine heart failure follow-up to capture pre-specified heart failure medical events. All standard of care clinic and hospitalization notes and procedure reports including echocardiograms, right heart catheterizations, pulmonary function tests, six minute walk tests and radiology reports will be collected as they occur.

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Conditions studied

  • Cardiac Failure

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03

In context

Heart Failure

5,701 studies on the registry are indexed under Heart Failure; 1,220 are open to participants now.

This study's enrollment of 100 is below the median of 200 across 1,679 observational studies indexed under Heart Failure.

Browse Heart Failure studies →

Lead sponsor

Josef Stehlik is the lead sponsor of 2 studies on the registry; none 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
No
Sampling method
Non-probability sample

Study population

Individuals with heart failure, NYHA Class II-IV

Inclusion criteria

  1. Subject must be 18 years old or older
  2. NYHA( New York Heart Association Functional Classification) Class II-IV, documented in site's medical record system.
  3. Subject able and willing to sign Informed Consent Document.
  4. Subject willing and able to perform all study related procedures.

Exclusion criteria

Exclusion Criteria:

  1. Expected LVAD (Left Ventricular Assist Device) implantation or heart transplantation in the next 30 days.
  2. Skin damage or significant arthritis, preventing wearing of device.
  3. Uncontrolled seizures or other neurological disorders leading to excessive abnormal movements or tremors in the upper body.
  4. Pregnant women or those who are currently nursing.
  5. Visual/cognitive impairment that as judged by the investigator does not allow the subject to independently follow rules and procedures of the protocol.
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Study design

Observational model
Other
Time perspective
Prospective
Enrollment
100 participants (actual)
Patient registry
No

Interventions

  • DeviceHealthPatch

    A multi-sensor device to collect continuous vital signs

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What researchers measure

Primary outcomes

  1. Detection of Heart Failure Exacerbation Event

    Correlation of algorithmic alerts generated by a non-invasive telemonitoring system to a verified heart failure exacerbation event, measured in percent accuracy

    Time frame: 90 Days

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Study locations

4 sites
  • Palo Alto VA Health Care System
    Palo Alto, California 94304, United States
  • Malcom Randall VA Medical Center
    Gainesville, Florida 32608, United States
  • Michael E. DeBakey VA Medical Center
    Houston, Texas 77030, United States
  • George E Wahlen Medical Center
    Salt Lake City, Utah 84148, United States
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References and documents

Publications

  • Stehlik J, Schmalfuss C, Bozkurt B, Nativi-Nicolau J, Wohlfahrt P, Wegerich S, Rose K, Ray R, Schofield R, Deswal A, Sekaric J, Anand S, Richards D, Hanson H, Pipke M, Pham M. Continuous Wearable Monitoring Analytics Predict Heart Failure Hospitalization: The LINK-HF Multicenter Study. Circ Heart Fail. 2020 Mar;13(3):e006513. doi: 10.1161/CIRCHEARTFAILURE.119.006513. Epub 2020 Feb 25. PubMed 32093506 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 5, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03037710
Lead sponsor
Josef Stehlik
Responsible party
Josef Stehlik (Principal Investigator, University of Utah) — Sponsor-investigator
First posted
Jan 31, 2017
Start date
Jun 2015
Primary completion
Jan 26, 2017
Completion
Jan 26, 2017
Last update
Aug 5, 2020

Study contacts

Josef Stehlik, MD
principal investigator · University of Utah

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2020. You cannot join it, but the record below documents what was studied.

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