NCT05728203

Brief Summary

  1. 1.Early detection of hearing affection in call center operators
  2. 2.Study the effect of this type of noise on the auditory brainstem response.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
119

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2023

Typical duration for all trials

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 4, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

February 15, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2023

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2025

Completed
Last Updated

March 29, 2023

Status Verified

March 1, 2023

Enrollment Period

2.3 years

First QC Date

February 4, 2023

Last Update Submit

March 27, 2023

Conditions

Hearing Disorders

Outcome Measures

Primary Outcomes (1)

  • Audiologic assessment of call center operators

    By using of audiometer to assess hearing loss and using of auditory brainstem response to assess effect of this type of noise on hearing

    through study completion, an average 2 years

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

* Active working workers in call centers with minimum exposure 2year. * Had no previous auditory problems. * Their ages between \[18-50\] years old working at call centers from 6-12hours/day,5-6days a week.

You may qualify if:

  • Active working workers in call centers with minimum exposure 2year.
  • Had no previous auditory problems.
  • Their ages between \[18-50\] years old working at call centers from 6-12hours/day,5-6days a week.

You may not qualify if:

  • evidence of systemic illness \[ cardiovascular, renal and diabetes\]
  • previous history of hearing loss and tinnitus before working at the call center.
  • History of noise, ototoxic drugs and chemotherapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Pawlaczyk-Luszczynska M, Dudarewicz A, Zamojska-Daniszewska M, Zaborowski K, Rutkowska-Kaczmarek P. Noise exposure and hearing status among call center operators. Noise Health. 2018 Sep-Oct;20(96):178-189. doi: 10.4103/nah.NAH_11_18.

    PMID: 30516171BACKGROUND

MeSH Terms

Conditions

Hearing Disorders

Condition Hierarchy (Ancestors)

Ear DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Eman A Sayed

    Assiut University

    STUDY DIRECTOR

Central Study Contacts

Aya Y Abdelrahman

CONTACT

01016744133Ayayasserr1611@gmail.com

Enas M osman

CONTACT

01061121765enasosman101@gmail.com

Study Design

Study Type
observational
Observational Model
CASE CROSSOVER
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle investigator

Study Record Dates

First Submitted

February 4, 2023

First Posted

February 15, 2023

Study Start

June 1, 2023

Primary Completion

September 1, 2025

Study Completion

November 1, 2025

Last Updated

March 29, 2023

Record last verified: 2023-03