ClinicalTrials.gg
Not yet recruitingNCT07654491Updated Jul 1, 2026

Withings HFRN Retrospective Study

An observational study in Heart Failure, sponsored by Withings. Not yet recruiting at 1 site in France. Open to participants aged 45 Years to 120 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-01.

Sponsored by Withings · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
9,000
Ages
45 Years to 120 Years
Sex
All
01

Study summary

This is a fully decentralized retrospective, non-interventional study evaluating the diagnostic performance of the Withings Heart Function Risk Notification (HFRN), a software-only medical device (SaMD)

Read the detailed description

This is a fully decentralized retrospective study.

02

Conditions studied

  • Heart Failure

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Keywords

  • mhealth
03

In context

Heart Failure

6,331 studies on the registry are indexed under Heart Failure; 1,396 are open to participants now.

This study's planned enrollment of 9,000 is above the median of 200 across 1,983 observational studies indexed under Heart Failure.

Browse Heart Failure studies →

Lead sponsor

Withings is the lead sponsor of 23 studies on the registry; 3 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 2 (40%) have results posted.

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

04

Who can participate

Ages eligible
45 Years to 120 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Adult US consumer users (>= 45 years) of Withings connected smart scales

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

  • 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 , standard deviation of body-water percent, 90th-percentile daily steps) can be computed

Exclusion criteria

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)
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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
9,000 participants (estimated)
Patient registry
No

Groups and cohorts

  • HF Cases

    Withings smart-scale users

    Device: Withings Heart Function Risk Notification (HFRN) · Other: Claims-based heart-failure adjudication (reference standard)

  • Control

    Withings smart-scale users, control set

    Device: Withings Heart Function Risk Notification (HFRN) · Other: Claims-based heart-failure adjudication (reference standard)

Interventions

  • DeviceWithings Heart Function Risk Notification (HFRN)

    Software-only medical device (SaMD)

  • OtherClaims-based heart-failure adjudication (reference standard)

    Ground-truth heart-failure case / control status derived from administrative claims by a deterministic, pre-specified rule set.

06

What researchers measure

Primary outcomes

  1. Sensitivity (Se) of the HFRN algorithm

    Time frame: 13 weeks

  2. Specificity (Sp) of the HFRN algorithm

    Time frame: 13 weeks

07

Study locations

1 site
  • Withings (Sponsor) - Decentralized Retrospective Study, No Physical Sites
    Issy-les-Moulineaux, Île-de-France Region 92130, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2026; primary completion for Sep 2026, 3 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 12, 2026
First posted
Jun 17, 2026
StartEst.
Jun 2026
Primary completionEst.
Sep 2026
CompletionEst.
Sep 2026
Last update
Jul 1, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07654491
Lead sponsor
Withings
Responsible party
Sponsor
First posted
Jun 17, 2026
Start date
Jun 2026 (estimated)
Primary completion
Sep 2026 (estimated)
Completion
Sep 2026 (estimated)
Last update
Jul 1, 2026

Study contacts

Aline Criton, PhD
Contact
clinicaltrials-us@withings.com
+33 1.41.46.04.60
Pierre Escourrou, MD, PhD
principal investigator · Centre Interdisciplinaire du Sommeil, Paris, France

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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