Obstructive Sleep ApneaNCT07723417
DISE vs Muller's Maneuver in OSA Assessment
A study testing Drug-Induced Sleep Endoscopy (DISE) in people with Obstructive Sleep Apnea, run by Mansoura University at 1 site in Egypt.
Trial summary
Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder caused by recurrent upper airway collapse during sleep. Accurate identification of the site and pattern of upper airway obstruction is essential for selecting the appropriate treatment. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Obstructive Sleep Apnea
- What is being tested?
- Drug-Induced Sleep Endoscopy (DISE)
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteEgypt
- Study dates
- 12 Feb 2025to 15 Mar 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age > 18 years old.
- Diagnosed as OSAS according to polysomnography and AASM (June 2023).
- Body mass index < 40
Who cannot join
- Age < 18 years.
- Central sleep apnea.
- Hypoventilation syndromes.
- Cardiac arrhythmias.
- ischemic heart disease.
- Heart failure.
Trial locations and contacts
1 site in 1 country.
Egypt1 site
Mansoua University Hospital
Al Mansurah, Dakahlia Governorate, 35511
About this study
Official title: Role of Drug-Induced Sleep Endoscopy in Comparison to Muller's Maneuver in Obstructive Sleep Apnea Syndrome Assessment
Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder caused by recurrent upper airway collapse during sleep. Accurate identification of the site and pattern of upper airway obstruction is essential for selecting the appropriate treatment. Müller's maneuver has been widely used as an office-based assessment tool; however, it has limitations in reproducing natural sleep conditions. Drug-Induced Sleep Endoscopy (DISE) allows dynamic visualization of the upper airway under sedated conditions and may provide more accurate information about the level and pattern of airway collapse. This study aims to compare the findings of DISE with Müller's maneuver in patients with obstructive sleep apnea and to evaluate the diagnostic value of both techniques in upper airway assessment.
Read the detailed description
Obstructive sleep apnea (OSA) is one of the most common sleep-related breathing disorders and is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep, leading to intermittent hypoxia, sleep fragmentation, and significant cardiovascular and metabolic consequences. Accurate localization of the site and pattern of upper airway collapse is essential for selecting the most appropriate treatment strategy.
Müller's maneuver is a commonly used office-based endoscopic technique that evaluates upper airway collapse during forced inspiratory effort while the patient is awake. However, its diagnostic accuracy has been questioned because it does not replicate the physiological conditions of natural sleep. Drug-Induced Sleep Endoscopy (DISE) is a dynamic endoscopic examination performed under sedation, allowing direct visualization of the upper airway during a sleep-like state and providing detailed information regarding the level, degree, and configuration of airway collapse.
The present prospective study aims to compare the findings of Drug-Induced Sleep Endoscopy with those obtained by Müller's maneuver in patients diagnosed with obstructive sleep apnea. The study will evaluate the agreement between both techniques in identifying the site and pattern of upper airway obstruction and assess the potential additional diagnostic value of DISE in the preoperative assessment and treatment planning of patients with OSA. The findings of this study may help optimize patient selection for individualized therapeutic interventions and improve clinical decision-making in the management of obstructive sleep apnea.
- Conditions
- Obstructive Sleep Apnea
- Being tested
- Drug-Induced Sleep Endoscopy (DISE)
- Medical subject headings
- Sleep Apnea, Obstructive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Drug-Induced Sleep Endoscopy (DISE)Procedure or surgery
Drug-induced sleep endoscopy performed under sedation to evaluate the site, degree, and pattern of upper airway collapse in patients with obstructive sleep apnea.
| Study group | Role | What they receive |
|---|---|---|
| Single Study Arm | Experimental | Participants with obstructive sleep apnea will undergo awake flexible endoscopy with Müller's maneuver followed by Drug-Induced Sleep Endoscopy (DISE). The findings of both procedures will be compared to assess the site, degree, and pattern of upper airway obstruction. Receives: Procedure: Drug-Induced Sleep Endoscopy (DISE) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Agreement between Drug-Induced Sleep Endoscopy (DISE) using the VOTE cassification and Müller's Maneuver in assesment of OSA.
Agreement between Drug-Induced Sleep Endoscopy (DISE) findings, assessed using the VOTE classification, and Müller's maneuver findings in identifying the site, degree, and pattern of upper airway collapse in patients with obstructive sleep apnea. Agreement will be quantified using Cohen's kappa coefficient.
Measured: Baseline (during the same study visit)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Jul 2026
- Study start12 Feb 2025
- Primary completion10 Sep 2025
- Study completion15 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obstructive Sleep ApneaStudies of the same condition, open and under way.
- More trials run by Mansoura UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mansoura University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Lucy Soliman, Professor, Study chair, Chest Medicine Department, Faculty of Medicine, Mansoura University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07723417
- Sponsor's protocol ID
- MS.24.12.3032
- Status last verified
- Jul 2026
- First submitted
- 17 Jul 2026
- Last updated
- 23 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 23 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Role of Drug-Induced Sleep Endoscopy in Comparison to Muller's Maneuver in Obstructive Sleep Apnea Syndrome Assessment
- ClinicalTrials.gov ID
- NCT07723417
- Acronym / sponsor ID
- MS.24.12.3032
- Conditions
- Obstructive Sleep Apnea
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Mansoura UniversityUniversity, hospital or other
- Study start
- 12 Feb 2025 (actual)
- Primary completion
- 10 Sep 2025 (actual)
- Study completion
- 15 Mar 2026 (actual)
- First posted
- 23 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder caused by recurrent upper airway collapse during sleep. Accurate identification of the site and pattern of upper airway obstruction is essential for selecting the appropriate treatment. Müller's maneuver has been widely used as an office-based assessment tool; however, it has limitations in reproducing natural sleep conditions. Drug-Induced Sleep Endoscopy (DISE) allows dynamic visualization of the upper airway under sedated conditions and may provide more accurate information about the level and pattern of airway collapse. This study aims to compare the findings of DISE with Müller's maneuver in patients with obstructive sleep apnea and to evaluate the diagnostic value of both techniques in upper airway assessment.
Detailed description
Obstructive sleep apnea (OSA) is one of the most common sleep-related breathing disorders and is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep, leading to intermittent hypoxia, sleep fragmentation, and significant cardiovascular and metabolic consequences. Accurate localization of the site and pattern of upper airway collapse is essential for selecting the most appropriate treatment strategy.
Müller's maneuver is a commonly used office-based endoscopic technique that evaluates upper airway collapse during forced inspiratory effort while the patient is awake. However, its diagnostic accuracy has been questioned because it does not replicate the physiological conditions of natural sleep. Drug-Induced Sleep Endoscopy (DISE) is a dynamic endoscopic examination performed under sedation, allowing direct visualization of the upper airway during a sleep-like state and providing detailed information regarding the level, degree, and configuration of airway collapse.
The present prospective study aims to compare the findings of Drug-Induced Sleep Endoscopy with those obtained by Müller's maneuver in patients diagnosed with obstructive sleep apnea. The study will evaluate the agreement between both techniques in identifying the site and pattern of upper airway obstruction and assess the potential additional diagnostic value of DISE in the preoperative assessment and treatment planning of patients with OSA. The findings of this study may help optimize patient selection for individualized therapeutic interventions and improve clinical decision-making in the management of obstructive sleep apnea.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Single Study Arm | Experimental | Procedure: Drug-Induced Sleep Endoscopy (DISE)Participants with obstructive sleep apnea will undergo awake flexible endoscopy with Müller's maneuver followed by Drug-Induced Sleep Endoscopy (DISE). The findings of both procedures will be compared to assess the site, degree, and pattern of upper airway obstruction. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Age > 18 years old.
- Diagnosed as OSAS according to polysomnography and AASM (June 2023).
- Body mass index < 40
Key exclusion criteria (6 listed)
- Age < 18 years.
- Central sleep apnea.
- Hypoventilation syndromes.
- Cardiac arrhythmias.
- ischemic heart disease.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Drug-Induced Sleep Endoscopy (DISE)Drug-induced sleep endoscopy performed under sedation to evaluate the site, degree, and pattern of upper airway collapse in patients with obstructive sleep apnea. | Procedure or surgery | Single Study Arm |
Primary outcome
Agreement between Drug-Induced Sleep Endoscopy (DISE) using the VOTE cassification and Müller's Maneuver in assesment of OSA.
Time frame: Baseline (during the same study visit)
Agreement between Drug-Induced Sleep Endoscopy (DISE) findings, assessed using the VOTE classification, and Müller's maneuver findings in identifying the site, degree, and pattern of upper airway collapse in patients with obstructive sleep apnea. Agreement will be quantified using Cohen's kappa coefficient.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Jul 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Lucy Soliman, Professor study chair
Chest Medicine Department, Faculty of Medicine, Mansoura University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Drug-Induced Sleep Endoscopy (DISE) in people with Obstructive Sleep Apnea, run by Mansoura University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Agreement between Drug-Induced Sleep Endoscopy (DISE) using the VOTE cassification and Müller's Maneuver in assesment of OSA. (time frame: Baseline (during the same study visit)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jul 2026.