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Pistachios and coaching may help midlife women sleep better

NCT ID NCT07337915

Symptom relief Sponsor: The University of Texas Medical Branch, Galveston Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether eating pistachios daily and receiving coaching on healthy habits can improve sleep quality in midlife women aged 45-65 who have poor sleep. Participants will eat either pistachios or potato chips for a month and attend a one-hour coaching session. Researchers will measure sleep quality, alertness, body composition, and blood pressure before and after the intervention.

What this could mean

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

Active substance
pistachios and healthy habit coaching
What this could lead to
If successful, this could point toward a simple, non-drug way to improve sleep quality in midlife women.
What could go wrong
This is a small, early-stage study with only 72 participants, so results may not apply to everyone. The interventions are mild, so major sleep improvements are unlikely.

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 72 people

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

Started

Feb 2026

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

45 to 65 years

Sex

Female participants only

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: * All races and ethnic backgrounds * Between the ages of 45-65 years old * Women who meet STRAW staging criteria for late peri-menopause (STRAW score of -1) defined as interval of amenorrhea of 60 days OR meet STRAW staging criteria for early post-menopause (STRAW score of +1a, +1b or +1c) defined as \>12 months since last menstrual period * History of poor sleep quality (Pittsburgh Sleep Quality Index score \> 5) * Able and willing to provide informed consent * Access to an electronic device with teleconferencing capabilities (Teams, etc) * Willing to consume study intervention * Fluent (able to read and write) in English Exclusion Criteria: * Pregnancy or lactation * Recent (within the last 3 months) or current use of any prescription or over the counter medications that may impact sleep quality: 1. including, systemic steroids, anabolic steroids, growth hormone, immunosuppressants, psychotherapy) 2. recent (within the last 3 months) change in antidepressant medication useage or dosage * Untreated comorbid sleep disorders that are no known to be responsive to the behavioral interventions: These sleep disorders include but are not limited to narcolepsy, circadian rhythm disorder/shift work, restless leg syndrome, periodic leg movement disorder, obstructive sleep apnea. * Evidence of recent severe mental health disorders (e.g., suicide attempt or psychiatric hospitalization in past 3 years) that would, in the opinion of the investigator, affect sleep and/or make it difficult for the participant to the investigators instructions. * Recent (within past 3 years) treated cancer other than basal cell carcinoma * Current adherence to a weight-loss or weight-gain diet or use of GLP-1 RA medications * Active or recent (within the past 12 months) alcohol or substance use disorder * Allergy to study intervention (tree nuts) * Any other condition or event considered exclusionary by study PI

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Conditions

The condition(s) this trial relates to.

insomnia

As listed by the trial registrant

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

Poor sleep quality

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 Texas Medical Branch

    RECRUITING

    Galveston, Texas, 77555, United States

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