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Can a sleep app boost brain recovery after surgery? new study aims to find out.

NCT ID NCT06375265

Symptom relief Sponsor: Massachusetts General 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Sep 15, 2026 · Updated 2 times

Summary

This study tests whether a smartphone app that helps improve sleep, along with a wearable activity tracker, can support brain health in older adults (65+) after hip or knee replacement surgery. The goal is to see if better sleep can reduce confusion or memory problems after surgery. About 50 participants will use the app and tracker before and after their operation.

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

About 50 people

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

Started

Jan 2025

Expected to finish

Dec 2026

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.

Ages

65 years and older

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: 1. Adults ≥ 65 years old 2. Scheduled for an elective orthopedic total joint replacement procedure (knee/hip) 3. At least mild insomnia (ISI score of ≥10 on telephone screening or RedCap screening questionnaire) 5\. Own a smart phone 6. Willingness to use the dCBT-I app and actigraphy. Exclusion Criteria: 1. Current or previous CBT-I exposure in the last 6 months prior to the start of the study 2. Rapidly progressive illnesses/life expectancy \<6 months 3. Active psychosis/suicidal ideation 4. Irregular shift work/sleep patterns 5. Moderate-severe sleep apnea (apnea/hypopnea index ≥15) without CPAP compliance per chart review 6. Sleep disorders other than insomnia or apnea 7. Cognitive impairment (diagnosis of dementia) 8. Initiation, discontinuation, or dose change of sleep-affecting prescription medications within 1 month prior to study start or during the intervention period; not excluded if stable sleep-affecting medications in the prior month (by clinical review) 9. No surgery within 12 months of consented, eligibility will be reassessed if surgery is delayed by more than 3 months

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Conditions

The condition(s) this trial relates to.

Emergence Delirium insomnia

As listed by the trial registrant

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

Delayed neurocognitive recovery Insomnia Postoperative delirium Postoperative neurocognitive 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

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02114, United States

More trials for these conditions

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