Subglottic Airway Diameter in Normal AdultsNCT04175483
The Evaluation of Airway Dimension by Using Ultrasonography
An observational study of Subglottic Airway Diameter in Normal Adults, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography. Read more about this study
- Who is it for?
- Ages 20 years and olderHealthy volunteers can take part
- Conditions the study is for
- Subglottic Airway Diameter in Normal Adults
- What is being tested?
- assessment of subglottic diameter by ultrasonography
- How many people
- 120 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Nov 2019to 31 Aug 2020
- Phase
- Observational
- 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 20 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Adult healthy volunteers (aged more than 20 years) without pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Who may be able to join
- Adult healthy volunteers (aged more than 20 years) without pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Who cannot join
- pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
Wan-Ching Lien
Taipei, 100
Wan-Ching Lien, Ph.D., +886-2-23123456 ext. 62831, wanchinglien@ntu.edu.tw
About this study
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
Read the detailed description
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
- Being tested
- assessment of subglottic diameter by ultrasonography
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
assessment of subglottic diameter by ultrasonographyOther
assessment of subglottic diameter by ultrasonography
What is being measured
The primary outcome is the main question the study is designed to answer.
transverse glottic diameter by ultrasonography
transverse glottic diameter by ultrasonography
Measured: one day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Nov 2019
- Study start1 Nov 2019
- Primary completion31 Jul 2020
- Study completion31 Aug 2020 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Subglottic Airway Diameter in Normal AdultsStudies of the same condition, open and under way.
- More trials run by National Taiwan University HospitalThe 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
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 120 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04175483
- Sponsor's protocol ID
- 201910015RINC
- Status last verified
- Nov 2019
- First submitted
- 21 Nov 2019
- Last updated
- 4 Aug 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 4 Aug 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Evaluation of Airway Dimension by Using Ultrasonography
- ClinicalTrials.gov ID
- NCT04175483
- Acronym / sponsor ID
- 201910015RINC
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 120 participants (estimated)
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- 1 Nov 2019 (actual)
- Primary completion
- 31 Jul 2020 (actual)
- Study completion
- 31 Aug 2020 (estimated)
- First posted
- 25 Nov 2019 (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 aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
Detailed description
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
Who may qualify
- Ages
- 20 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Adult healthy volunteers (aged more than 20 years) without pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Key inclusion criteria (1 listed)
- Adult healthy volunteers (aged more than 20 years) without pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Key exclusion criteria (1 listed)
- pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
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 |
|---|---|---|
| assessment of subglottic diameter by ultrasonographyassessment of subglottic diameter by ultrasonography | Other | – |
Primary outcome
transverse glottic diameter by ultrasonography
Time frame: one day
transverse glottic diameter by ultrasonography
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Aug 2020.
- Individual participant dataSharing planned: No
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.
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 Subglottic Airway Diameter in Normal Adults, run by National Taiwan University Hospital at 1 site in Taiwan.
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 1 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: status not confirmed, as of the sponsor's last update on 4 Aug 2020. 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 Taiwan. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Wan-Ching Lien, ph.D. (+886-2-2312345 ext. 62831, wanchinglien@ntu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
transverse glottic diameter by ultrasonography (time frame: one day). 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 4 Aug 2020.