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Trachebronchomalacia (TBM)NCT02097212

Correlation Between Trachebroncho Malacia/Hyperdynamic Airway Collapse And Obstructive Sleep Apnea

An observational study of Trachebronchomalacia (TBM) and Hyper Dynamic Airway Collapse (HDAC), run by National Jewish Health at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The investigators hypothesize that there is a strong correlation between OSA and TBM/HDAC. Our hypothesis is based on the similarities in mechanism (airway collapse), symptoms (daytime and nocturnal dyspnea) predisposing conditions (obesity and neuromuscular abnormalities of the chest wall and the diaphragm), and… Read more about this study

Who is it for?
Ages 18 to 80 years
How many people
1 participants
Where
1 siteUnited States
Study dates
Mar 2014to Mar 2015
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 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: In this pilot study we plan to recruit 30 consecutive patients with TBM/HDAC from the interventional pulmonology clinic at National Jewish Health (NJH). These patients will already have an established diagnosis of TBM and/or HDAC.

Who may be able to join

  • Females and males ages 18-80 years old
  • Able and willing to provide written informed consent
  • Existing diagnosis of TBM or HDAC or both
  • No pre-existing diagnosis of OSA
  • No history of reconstructive surgery of chest wall or diaphragm

Who cannot join

  • Inability to provide informed consent
  • Non-English speaking
  • Poorly controlled congestive heart failure
  • Untreated Insomnia
  • Severe Coronary artery disease with active symptoms of angina
  • Patient is pregnant, or plans to become pregnant in next 3 months
Show all 14Show fewer
  • Moderate to severe bronchiectasis
  • Severe untreated gastroesophageal disease (GERD).
  • Moderate to large hiatal hernia deemed to be atleast in part responsible for TBM/HDAC
  • Airway obstruction not caused by TBM /HDAC or secondary TBM/HDAC caused by conditions such as Chronic Obstructive Pulmonary Disease (COPD).
  • Active or recent (with in last one year) cancer or cancer therapy (chemotherapy, radiation therapy or surgery)
  • Inability to properly perform the home sleep test
  • Unreliable test data after 2 attempts
  • BMI>45

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Jewish Health

    Denver, Colorado, 80206

Other trials in United States

About this study

The investigators hypothesize that there is a strong correlation between OSA and TBM/HDAC. Our hypothesis is based on the similarities in mechanism (airway collapse), symptoms (daytime and nocturnal dyspnea) predisposing conditions (obesity and neuromuscular abnormalities of the chest wall and the diaphragm), and effect of interventions (CPAP and BIPAP) in these diseases.

Read the detailed description

Tracheobronchomalacia (TBM) and HyperDynamic Airway Collapse (HDAC) are two distinct airway diseases that lead to airway collapse which can in turn lead to the symptoms of dyspnea, cough, and inability to expectorate sputum effectively. TBM entails flaccid tracheal and bronchial cartilages leading to airway collapse, emanating primarily from the anterior wall of the lumen. It is seen in conditions such as Relapsing Polychondritis and saber sheath tracheal deformity. HDAC on the other hand is the hyper-flaccidity of the membranous portion of the tracheobronchial tree leading to airway collapse. This condition is commonly seen with obesity and severe emphysema. TBM and HDAC frequently coexist.

In patients with TBM/HDAC sleep disorders are common. Patients often complain of poor quality sleep, snoring, daytime fatigue, and somnolence. These patients are often diagnosed with Obstructive Sleep Apnea (OSA) upon workup.

Keywords
Tracheobronchomalacia, TBM, HyperDynamic Airway Collapse, HDAC, Obstructive Sleep Apnea, OSA
Medical subject headings
Sleep Apnea, Obstructive, Tracheobronchomalacia

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Epworth Sleepiness Scale

    The Epworth Sleepiness Scale is widely used in the field of sleep medicine as a subjective measure of a patient's sleepiness. The test is a list of eight situations in which you rate your tendency to become sleepy on a scale of 0, no chance of dozing, to 3, high chance of dozing.

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Mar 2014 (estimated)
  2. Study startMar 2014
  3. Primary completionMar 2015
  4. Study completionMar 2015

Resources

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
Cohort
Time perspective
Prospective
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02097212
Sponsor's protocol ID
HS#-2794
Status last verified
Mar 2017
First submitted
24 Mar 2014
Last updated
29 Mar 2017
Results posted
No
Data monitoring committee
No

Publications

  • Murgu SD, Colt HG. Tracheobronchomalacia and excessive dynamic airway collapse. Respirology. 2006 Jul;11(4):388-406. doi: 10.1111/j.1440-1843.2006.00862.x.

    PubMed 16771908
  • Majid A, Fernandez L, Fernandez-Bussy S, Herth F, Ernst A. [Tracheobronchomalacia]. Arch Bronconeumol. 2010 Apr;46(4):196-202. doi: 10.1016/j.arbres.2009.10.011. Epub 2009 Dec 9. Spanish.

    PubMed 20004507

Questions about this trial

What is this clinical trial studying?

An observational study of Trachebronchomalacia (TBM) and Hyper Dynamic Airway Collapse (HDAC), run by National Jewish Health at 1 site in United States.

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 5 inclusion and 14 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 29 Mar 2017. 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 States. 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?

Epworth Sleepiness Scale (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02097212, which also lists 2 linked publications.

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 29 Mar 2017.

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