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Upper Respiratory InfectionNCT00694421

Gas Supply, Demand and Middle Ear Gas Balance: Specific Aim 2

An observational study of Upper Respiratory Infection, run by Cuneyt M. Alper 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

This study will test the hypothesis that constitutionally poorer Eustachian tube function predisposes to middle-ear pathology during a viral upper respiratory infection. Read more about this study

Who is it for?
Ages 2 to 54 yearsHealthy volunteers can take part
Conditions the study is for
Upper Respiratory Infection
How many people
139 participants
Where
1 siteUnited States
Study dates
Jan 2008to May 2012
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 2 to 54 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Study population: Membership in one of the two identified source populations

Who may be able to join

  • Participating/participated in one of the two identified studies

Who cannot join

  • No longer meet inclusion/exclusion criteria of parent studies

Trial locations and contacts

1 site in 1 country.

United States1 site
  • ENT Research Center Children's Hospital of Pittsburgh

    Pittsburgh, Pennsylvania, 15213

Other trials in United States

About this study

This study will test the hypothesis that constitutionally poorer Eustachian tube function predisposes to middle-ear pathology during a viral upper respiratory infection.

Read the detailed description

The most well supported immediate cause of Otitis media (OM) is a pre-existing or concurrent viral upper respiratory tract infection (vURI). However, not all vURI episodes cause OM and a variety of predisposing factors has been suggested to explain this selectivity. Based on our preliminary work using a model of experimental viral infections in adults, we hypothesize that the constitutional efficiency of the Eustachian tube (ET) to supply the middle ear (ME) with gas and thereby stabilize ME pressure at near ambient is a primary risk factor for OM during vURI. Here, we test the hypothesis that constitutionally poorer ET function (F) predisposes to ME pathology during a vURI. Specifically, we will use ETF testing protocols relevant to the pressure-chamber to evaluate constitutional ETF in ≈ 160 susceptible, adult volunteers who will be exposed to rhinovirus as part of our funded study entitled "Social and Psychological Risks for Infectious Disease" (PI: S. Cohen, PI: CHP subcontract: WJ Doyle) and document the ETF and ME responses to infection over a 5-day post-exposure, cloister period.

Also, using protocols relevant to the pressure-chamber, we will evaluate constitutional ETF in 80 children who will be enrolled into our funded study entitled "Role of Virus and Genetic Susceptibility in Otitis Media" (PI: CM Alper) and followed for vURI and OM from October through April. From both data sets, we will extract measures of ETF efficiency and determine using logistic regression with appropriate control variables (e.g. demographic data etc) if a single or combination of ETF variables predicts an abnormal ME response in rhinovirus infected adults or OM during a rhinovirus cold in children.

Keywords
otitis, Eustachian tube, virus, Middle ear disease
Medical subject headings
Respiratory Tract Infections, Otitis, Virus Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00694421
Study groupRoleWhat they receive
1adults who participate in study, "Social and Psychological Risks for Infectious Disease" here at Children's Hospital of Pittsburgh
2children 2-6 years who participate in "Role of Virus and Genetic Susceptibility" study here at Children's Hospital of Pittsburgh

What is being measured

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

  1. Eustachian tube function

    Measured: 3 months (adults), 6 months (children)

Timeline

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

  1. First posted10 Jun 2008 (estimated)
  2. Study startJan 2008
  3. Primary completionOct 2011
  4. Study completionMay 2012

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
Cross-sectional
Enrolment
139 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00694421
Sponsor's protocol ID
0607007
Other IDs
P50DC007667
Status last verified
Nov 2016
First submitted
5 Jun 2008
Last updated
4 Nov 2016
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Upper Respiratory Infection, run by Cuneyt M. Alper 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 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: finished, as of the sponsor's last update on 4 Nov 2016. 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?

Eustachian tube function (time frame: 3 months (adults), 6 months (children)). 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 Nov 2016.

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