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HearingNCT07254442

Investigation of the Impact of Medications Used in COVID-19 Treatment and COVID-19 Vaccine on Hearing

An observational study of Hearing and COVID - 19, run by Zonguldak Bulent Ecevit University at 1 site in Turkey (Türkiye).

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

Investigation of the Impact of Medications Used in COVID-19 Treatment and COVID-19 Vaccine on Hearing Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Hearing, COVID - 19, Ototoxicity
What is being tested?
Hearing tests
How many people
90 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Dec 2021to 1 Mar 2022
Phase
Observational

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 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: 1. Those who have had COVID-19 and are taking medication 2. Those who have had COVID-19 and are not taking medication 3. Healthy individuals who have not had COVID-19

Who may be able to join

  • Age between 18 and 35 For the Medication group: Having had COVID-19 and using COVID-19 medications For the Non-Medication group: Having had COVID-19 and not using COVID-19 medications For the Control group: Having never had COVID-19

Who cannot join

  • Previously diagnosed with hearing loss Use of ototoxic medications other than those specified Pathology detected during tympanometric evaluation or otoscopic examination Chronic disease Family history of hearing loss History of meningitis Neurological disorders Acute or chronic ear infection Admission to intensive care

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Biruni University

    Istanbul

Other trials in Turkey (Türkiye)

About this study

Investigation of the Impact of Medications Used in COVID-19 Treatment and COVID-19 Vaccine on Hearing

Read the detailed description

This study aims to investigate the impact of medications containing the active ingredients hydroxychloroquine and favipiravir on the auditory system, as well as to examine the effect of COVID-19 on hearing and its potential relationship with medication use and COVID-19 vaccine dose.

Being tested
Hearing tests
Medical subject headings
COVID-19, Ototoxicity

What participants receive

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

  • Hearing testsDiagnostic test

    Participants' pure tone thresholds, high frequency thresholds, and otoacoustic emissions measurements were evaluated.

Study groups in NCT07254442
Study groupRoleWhat they receive
Control groupGroup that has not had Covid-19
Receives: Diagnostic Test: Hearing tests
Medication GroupThe group that had Covid-19 and used medication
Receives: Diagnostic Test: Hearing tests
Non-medication groupThe group that had Covid-19 and did not use medication
Receives: Diagnostic Test: Hearing tests

What is being measured

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

  1. Pure tone and high frequency hearing thresholds

    Measured: December, 2021-February 2022

  2. Transient evoked otoacoustic emissions - Signal/noise ratio

    Measured: December, 2021-February 2022

  3. Distortion product otoacoustic emissions- signal/noise ratio

    Measured: December, 2021-February 2022

Timeline

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

  1. First posted28 Nov 2025
  2. Study start1 Dec 2021
  3. Primary completion1 Feb 2022
  4. Study completion1 Mar 2022

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
Other
Time perspective
Cross-sectional
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07254442
Sponsor's protocol ID
2021/61-18
Other IDs
1919B012102481
Status last verified
Nov 2025
First submitted
26 Sep 2025
Last updated
28 Nov 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

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