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Fibromyalgia's hidden impact on sleep apnea revealed

NCT ID NCT06536894

Knowledge-focused Sponsor: Kirsehir Ahi Evran Universitesi 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Aug 11, 2026 · Updated 2 times

Summary

This study looked at how having fibromyalgia changes body measurements and sleep patterns in people with obstructive sleep apnea. Researchers measured neck, waist, and hip sizes, and used sleep tests and ultrasound to compare 77 participants. The goal was to better understand the link between these two conditions, not to test a new treatment.

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

77 people

The number who actually took part.

Started

Aug 2024

Finished

Dec 2025

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

Female patients diagnosed with fibromyalgia who applied to the sleep disorders outpatient clinic operating within the Department of Neurology and underwent polysomnography with sleep problems, as well as patients diagnosed with OSAS, will be included.

Ages

18 to 80 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: * Between 18-65 years old * Being diagnosed with fibromyalgia and having applied to the sleep disorders outpatient clinic or being followed up with the diagnosis of OSAS in the sleep disorders outpatient clinic. * Agree to participate in the study Exclusion Criteria: * Patients under 18 years of age * Male patients * Not agreeing to participate in the study * Neurological diseases that may cause OSAS such as stroke, Parkinson's disease, multiple sclerosis * Rheumatological, oncological and hematological diseases * Central type obstructive sleep apnea syndrome * Thyroid pathology that affects neck circumference measurement

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Conditions

The condition(s) this trial relates to.

fibromyalgia obstructive sleep apnea syndrome sleep-wake disorder

As listed by the trial registrant

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

Fibromyalgia syndrome Obstructive sleep apnea syndrome

Contacts and locations

Locations

  • Ahi evran university

    Kırşehir, 40100, Turkey (Türkiye)

More trials for these conditions

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