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Can a smartwatch track Kids' steps and sleep accurately? pfizer study aims to find out

NCT ID NCT04823650

Knowledge-focused Sponsor: Pfizer Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Pfizer study tested whether wearable activity monitors (like a smartwatch) can accurately measure walking, running, and sleep in healthy children aged 3 to 17. Eighty-seven kids wore the devices during lab activities and at home for two weeks. The goal was to see if these tools are reliable enough to use in future medical studies.

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

87 people

The number who actually took part.

Started

Aug 2021

Finished

Oct 2024

Lead sponsor

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

Healthy children and adolescents aged 3-17.

Ages

3 to 17 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Ambulatory * No significant health problems that would impair the completion of the physical activity tasks, does not carry any diagnosis of developmental delay and/or significant co-morbid medical conditions as determined by a medically qualified individual during medical history review Exclusion Criteria: * Participation in other studies involving digital devices within 1 week and/or treatment with an investigational drug (Phases 1-4) within 30 days or 5 half-lives before the current study begins and/or during study participation. * Participants with implanted medical devices. * Minor participants who reach the age of majority during the study, as recognized under local law. * Any medical or psychiatric condition that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. * Participants with known allergies to components as specified by device manufacturer if applicable (eg, plastic, stainless steel and silicone).

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Conditions

The condition(s) this trial relates to.

Motor Activity primary interstitial lung disease specific to childhood

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Adolescent Child Child, preschool

Contacts and locations

Locations

  • Pfizer Innovation Research, PfIRe, Lab

    Cambridge, Massachusetts, 02139, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.