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Smartwatch data may forecast bipolar mood swings

NCT ID NCT05828056

Knowledge-focused Sponsor: National Taiwan University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 31, 2026 · Last updated Jul 31, 2026

Summary

This study is testing whether a smartwatch can help predict when a person with bipolar disorder or major depressive disorder might experience a manic or depressive episode. Researchers will track 100 participants for a year, collecting data on heart rate, sleep, and activity levels. The goal is to build a computer model that can spot early warning signs of a mood episode, potentially allowing for earlier intervention and better management of these conditions.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Wearable activity tracker (Garmin smartwatch)
What this could lead to
If successful, this could lead to a tool that alerts patients and doctors to an impending mood episode, enabling earlier treatment and potentially better long-term outcomes.
What could go wrong
This is an early-stage study with a small number of participants. The prediction model may not be accurate enough for real-world use, and individual differences in activity and sleep patterns could limit its generalizability.

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

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2020

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

We will recruit 100 patients with mood disorders from the psychiatric ward and outpatient services of the Department of Psychiatry, National Taiwan University Hospital. All the participants will be followed for one year to collect the daily activity level, sleep patterns, heart rate through actigraphy, as well as location, mood report, drug compliance and face photo through smartphone app that will be developed by Co-PI Lai.

Ages

20 to 60 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * DSM-5 Bipolar disorder or depressive disorder * 20\~60 years old * Willing to carry smartwatch and smartphone most of the time Exclusion Criteria: * Comorbid with substance use disorder * Unable to use smartwatch and smartphone

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Conditions

The condition(s) this trial relates to.

bipolar disorder depressive disorder

As listed by the trial registrant

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

Bipolar disorder Depressive disorder

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

Locations

  • National Taiwan University Hospital

    RECRUITING

    Taipei, Taiwan

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