Your bathroom scale could soon warn you about heart failure
NCT ID NCT07654491
First seen Jun 25, 2026 · Last updated Jul 02, 2026 · Updated 3 times
Summary
This study will test whether an algorithm that analyzes data from Withings smart scales (weight, body water, and step counts) can accurately detect heart failure. Researchers will look back at data from 9,000 people aged 45 and older in the US. If the algorithm works well, it could become a non-diagnostic tool that simply notifies users to see a doctor for further evaluation.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Withings Heart Function Risk Notification (HFRN) algorithm
- What this could lead to
- If successful, this could lead to a simple, at-home way to alert people to possible heart failure, prompting earlier medical check-ups.
- What could go wrong
- This is a retrospective study using existing data, not a controlled trial. The algorithm may not be accurate for all users, and false alarms or missed cases are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 9,000 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adult US consumer users (\>= 45 years) of Withings connected smart scales
- Ages
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45 to 120 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Users of commercially purchased, consumer-grade Withings smart scales * A source of step counts synced into the Withings ecosystem (a Withings activity tracker, a smartphone, or a third-party activity tracker) * Claims linkage available, enabling heart-failure ground-truth ascertainment * Age \>= 45 years * At least one 13-week quarter in which at least one of the three quarterly features (mean BMI, standard deviation of body-water percent, 90th-percentile daily steps) can be computed Exclusion Criteria: * Users for whom heart-failure status cannot be determined from claims (unknown label; e.g. controls with \< 2 years of continuous enrollment) * Users with no usable measurement after per-reading plausibility screening * Users without an individual Withings account (shared accounts excluded to prevent data contamination)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Withings (Sponsor) - Decentralized Retrospective Study, No Physical Sites
Issy-les-Moulineaux, Île-de-France Region, 92130, France
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