Obstructive Sleep Apnoea (OSA)NCT07402603
Sleep-disordered Breathing Database
An observational study of Obstructive Sleep Apnoea (OSA) and Hypoventilation Syndrome, run by Royal Free Hospital NHS Foundation Trust at 1 site in United Kingdom.
Trial summary
The goal of this study is to collect clinical data on patients who have had a sleep study and are given a diagnosis of a sleep related breathing disorder such as obstructive sleep apnoea. Collecting this data in an organised way will mean that the investigators can monitor patients and their health outcomes. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Obstructive Sleep Apnoea (OSA), Hypoventilation Syndrome
- How many people
- 5,000 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- 15 Jan 2026to Jan 2036
- How long will I take part?
- 5 Years
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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
- Healthy volunteers accepted
- Adult, Older adult
Study population: The patient population will be those patients under the sleep and ventilation service who have undertaken a sleep study and started on treatment for their sleep disordered breathing
Who may be able to join
- Age >18 years
- Referred to Royal Free London NHS Foundation Trust Sleep and Ventilation Service
- Agreed to undertake a sleep study
Who cannot join
- Inability to consent
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United Kingdom1 site
Royal Free London NHS Foundation Trust
London
Swapna Mandal, PhD, +442077940500 ext. 23359, swapnamandal@nhs.net
About this study
Official title: Enhancing Patient Care: Sleep and Ventilation Database
The goal of this study is to collect clinical data on patients who have had a sleep study and are given a diagnosis of a sleep related breathing disorder such as obstructive sleep apnoea. Collecting this data in an organised way will mean that the investigators can monitor patients and their health outcomes.
Read the detailed description
This is a prospective database collecting: symptom, physiological, comorbidity and treatment response data
- Keywords
- database, observational
- 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.
| Study group | Role | What they receive |
|---|---|---|
| Sleep disordered breathing | Patients who are referred for a sleep study to investigate sleep disordered breathing |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of patients consenting to participation in a database
From the whole cohort referred for a sleep study, the number of participants (percentage of the whole cohort) who sign a consent form and have data recorded will be calculated
Measured: 5 years
Secondary outcomes (1)
Changes in symptoms and disease related variables
Changes in symptom based scores - Epworth sleepiness score between baseline and follow up Changes in disease parametrics including: AHI (apnoea/hypopnoea index), blood gas measurements (PO2, PCO2, pH, HCO3), lung function between baseline and follow up Additional variables may be added over the duration of the database
Measured: 5 years initially, further ethical approval will be sought at 5 years to extend the database further
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Feb 2026
- Study start15 Jan 2026 (estimated)
- Primary completion14 Jan 2031 (estimated)
- Study completionJan 2036 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obstructive Sleep Apnoea (OSA)Studies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 5,000 participants (estimated)
- Target duration
- 5 Years
Sponsor and investigators
- Lead sponsor
- Royal Free Hospital NHS Foundation Trust
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07402603
- Sponsor's protocol ID
- 25-WS-0157
- Status last verified
- Feb 2026
- First submitted
- 13 Jan 2026
- Last updated
- 11 Feb 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Other researchers may apply for access to the database, provided they demonstrate a valid scientific and public benefit and meet all governance requirements.
Study at a glance
From the registry record, last updated by the sponsor on 11 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Enhancing Patient Care: Sleep and Ventilation Database
- ClinicalTrials.gov ID
- NCT07402603
- Acronym / sponsor ID
- 25-WS-0157
- Keywords
- database, observational
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 5,000 participants (estimated)
- Lead sponsor
- Royal Free Hospital NHS Foundation TrustUniversity, hospital or other
- Study start
- 15 Jan 2026 (estimated)
- Primary completion
- 14 Jan 2031 (estimated)
- Study completion
- Jan 2036 (estimated)
- First posted
- 11 Feb 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.
The goal of this study is to collect clinical data on patients who have had a sleep study and are given a diagnosis of a sleep related breathing disorder such as obstructive sleep apnoea. Collecting this data in an organised way will mean that the investigators can monitor patients and their health outcomes.
Detailed description
This is a prospective database collecting: symptom, physiological, comorbidity and treatment response data
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Target follow-up
- 5 Years
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Sleep disordered breathing | – | –Patients who are referred for a sleep study to investigate sleep disordered breathing |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The patient population will be those patients under the sleep and ventilation service who have undertaken a sleep study and started on treatment for their sleep disordered breathing
Key inclusion criteria (3 listed)
- Age >18 years
- Referred to Royal Free London NHS Foundation Trust Sleep and Ventilation Service
- Agreed to undertake a sleep study
Key exclusion criteria (1 listed)
- Inability to consent
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Number of patients consenting to participation in a database
Time frame: 5 years
From the whole cohort referred for a sleep study, the number of participants (percentage of the whole cohort) who sign a consent form and have data recorded will be calculated
1 secondary outcome
Changes in symptoms and disease related variables
Time frame: 5 years initially, further ethical approval will be sought at 5 years to extend the database further
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Feb 2026.
- Individual participant dataSharing planned: Undecided. Other researchers may apply for access to the database, provided they demonstrate a valid scientific and public benefit and meet all governance requirements.
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Obstructive Sleep Apnoea (OSA) and Hypoventilation Syndrome, run by Royal Free Hospital NHS Foundation Trust at 1 site in United Kingdom.
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 1 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: opening soon, as of the sponsor's last update on 11 Feb 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 United Kingdom. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Swapna Mandal, PhD (+442077940500 ext. 23359, swapnamandal@nhs.net), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of patients consenting to participation in a database (time frame: 5 years). 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 11 Feb 2026; AzTrials last refreshed its copy on 27 Oct 2026.