NCT02493686

Brief Summary

Examination of the bone conduction of persons which according to the pure tone audiogram have a normal age related hearing threshold in the air conduction.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,093

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2014

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2014

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

June 2, 2015

Completed
1 month until next milestone

First Posted

Study publicly available on registry

July 9, 2015

Completed
23 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
5.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2020

Completed
Last Updated

November 16, 2020

Status Verified

November 1, 2015

Enrollment Period

11 months

First QC Date

June 2, 2015

Last Update Submit

November 12, 2020

Conditions

Air Bone Gap

Outcome Measures

Primary Outcomes (1)

  • Bone conduction Threshold/ Air bone gap in normal hearing subject in relation to age

    from the initial establishment of the database until collection of the data

    1960 - 2014 (54 years)

Secondary Outcomes (1)

  • Air bone gap changes in individuals who have received more than one Audiogram

    1960 - 2014 (54 years)

Interventions

audiogramDIAGNOSTIC_TEST

hearing test

Eligibility Criteria

Age20 Years - 79 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Persons which have a normal hearing threshold level in the airconduction.

You may qualify if:

  • All pure tone audiograms recorded and available in the system from the beginning of measurement as follows:
  • age related normal hearing threshold level with air conducted pure tone audiogram

You may not qualify if:

  • age younger than 20 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Audiometry

Intervention Hierarchy (Ancestors)

Hearing TestsDiagnostic Techniques, OtologicalDiagnostic Techniques and ProceduresDiagnosis

Study Officials

  • Rudolf Probst, Prof.

    University Hospital Zurich, clinic othorhinolaryngology, 8091 Zurich

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 2, 2015

First Posted

July 9, 2015

Study Start

September 1, 2014

Primary Completion

August 1, 2015

Study Completion

November 1, 2020

Last Updated

November 16, 2020

Record last verified: 2015-11