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Can talk therapy for sleep tame your stress hormones?

NCT ID NCT07156383

Knowledge-focused Sponsor: University of Notre Dame 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at how Cognitive Behavioral Therapy for Insomnia (CBT-I) affects the body's stress system, including the hormone cortisol. Researchers will track 115 adults with chronic insomnia, measuring sleep and stress markers before, during, and after therapy. The goal is to understand why CBT-I works and whether it helps people with short sleep more than those who sleep longer.

What this could mean

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

Active substance
Cognitive Behavioral Therapy for Insomnia (CBT-I)
What this could lead to
If successful, this could clarify how CBT-I works on a biological level, potentially leading to more targeted insomnia treatments.
What could go wrong
This is an early-stage mechanistic study, not a treatment trial. It may not produce clear results, and findings may not apply to all insomnia patients.

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 115 people

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

Started

Sep 2025

Expected to finish

Aug 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.

Ages

18 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: * At least 18-years-old * Speaks English * Meets DSM-5 criteria for Insomnia Disorder, determined through initial screener than verified during brief clinical interview (at intake) Exclusion Criteria: * Sleep disorders other than Insomnia * Endocrine disorders * Extreme sleep schedule (i.e. shift workers) * Currently taking sleep medication * Currently taking medication for endocrine dysfunction * Currently taking medication that interferes with sleep or cortisol levels * Excessive alcohol/substance use or AUD/SUD * Serious mental illness * Chronic medical conditions (which may be exacerbated by sleep restriction) * Pregnant or nursing women * Women in the peri-menopausal stage due to irregular menses and fluctuations in sex hormones.

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Conditions

The condition(s) this trial relates to.

insomnia Sleep Deprivation sleep-wake disorder

As listed by the trial registrant

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

Chronic insomnia

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

  • University of Notre Dame

    RECRUITING

    Notre Dame, Indiana, 46556, United States

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