Genetics of Middle Ear Disease

November 10, 2017 updated by: Margaretha L. Casselbrant, University of Pittsburgh

Genetic Epidemiology of Otitis Media

The goal of this study is to identify the genes that contribute to susceptibility to recurrent/persistent middle ear disease. Five hundred families with at least 2 children who have undergone tympanostomy tube insertion will be enrolled. A blood sample will be obtained from the children who had tubes and any available parent (at least 1), as well as any siblings without significant histories of middle ear disease.

Study Overview

Status

Completed

Conditions

Detailed Description

Using the twin study approach, the investigators demonstrated that time with middle ear effusion (MEE), number of episodes of MEE and numbers of episodes of acute otitis media (AOM) have a strong genetic component. The point estimate of heritability of time with MEE was 0.73. While there is significant evidence that susceptibility to recurrent/persistent OM is largely genetically determined, the specific genes which confer susceptibility are unknown. The overall research strategy to identify genes underlying OM is to apply a three-stage study design that will allow the investigators to balance cost efficiency with statistical power. Five hundred evaluable pairs of siblings with a history of tympanostomy tube insertion (affected), their parent(s) and available non-affected full siblings will be recruited. A blood sample will be obtained from each subject for genotyping.

Study Type

Observational

Enrollment (Actual)

2121

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15224
        • ENT Research Center, Children's Hospital of Pittsburgh of UPMC

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Families with 2 or more full sibs who had tympanostomy tubes inserted

Description

Inclusion Criteria:

  • families: 2 or more full sibs who had tympanostomy tubes inserted

Exclusion Criteria:

  • major congenital malformations
  • medical conditions with a predisposition for OM (e.g. cleft palate, Down syndrome, or other craniofacial malformations
  • cared for in the Intensive Care Unit as neonate
  • been on assisted ventilation
  • known sensorineural hearing loss

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Pittsburgh

Collaborators

National Institute on Deafness and Other Communication Disorders (NIDCD)

Investigators

  • Principal Investigator: Margaretha L Casselbrant, MD, PhD, University of Pittsburgh

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2002

Primary Completion (Actual)

July 1, 2007

Study Completion (Actual)

July 1, 2009

Study Registration Dates

First Submitted

January 12, 2007

First Submitted That Met QC Criteria

January 12, 2007

First Posted (Estimate)

January 15, 2007

Study Record Updates

Last Update Posted (Actual)

November 14, 2017

Last Update Submitted That Met QC Criteria

November 10, 2017

Last Verified

November 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • R01DC005630 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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