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A smartphone intervention aims to improve teen sleep and mental health

NCT ID NCT03665337

Symptom relief Sponsor: University of California, San Francisco 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 24, 2026 · Last updated Jul 24, 2026

Summary

This trial tests whether a mobile health app called mTranS-C can improve sleep quality in adolescents who are at risk for depression and anxiety but do not yet have a psychiatric diagnosis. The app delivers a behavioral sleep intervention designed to address insomnia and delayed sleep phase. Researchers will measure changes in sleep quality and mood symptoms to see if improving sleep can help prevent mental health issues.

What this could mean

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

Active substance
a mobile health adaptation of a behavioral sleep intervention called mTranS-C
What this could lead to
If it works, this could offer a scalable, accessible way to improve sleep and lower the risk of depression and anxiety in teenagers.
What could go wrong
This is a small, early-stage trial with no blinding, so results may not generalize. The intervention is behavioral, so adherence and engagement could vary widely.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

59 people

The number who actually took part.

Started

Sep 2020

Finished

Oct 2024

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.

Ages

12 to 18 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: Exclusion Criteria: * any current psychiatric illness * currently use of medications or herbs with known effects on sleep * hospitalization for substance use or suicide within the past 12 months * known sleep apnea * unstable major medical conditions * current psychotherapy for depression, anxiety or sleep health deficits

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Conditions

The condition(s) this trial relates to.

circadian rhythm sleep disorder, delayed sleep phase type insomnia

As listed by the trial registrant

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

Delayed sleep phase Insomnia

Contacts and locations

Locations

  • University of California, San Francisco

    San Francisco, California, 94143, United States

More trials for these conditions

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