Clinical trial Recruiting at 1 site Interventional Ages 18 to 30

Effect of caffeine on understanding speech in noisy environments

Official title: Investigating the Effect of Caffeine Consumption on Speech Understanding in Noise in Young Adults

Run by Istanbul Aydın University · NCT06942117 · Data updated 2026-11-12

This study is testing whether drinking caffeine can help young adults understand speech better in noisy places.

Quick facts

Study typeInterventional
Ages18 Years to 30 Years
SexAll
Enrollment60 (estimated)
SponsorIstanbul Aydın University
Academic / other
Locations1 site (Istanbul, Istanbul)
StatusRecruiting
StartedApril 12, 2025
Main results expectedSeptember 13, 2025
Study endsApril 13, 2026
Registry record updatedApril 24, 2025
Trial IDNCT06942117 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are young adults with normal hearing who do not have a history of neurological or psychological disorders.

Probably not a fit

Patients with hearing loss, neurological or psychological disorders, smokers, or those using ototoxic drugs may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates how caffeine consumption affects young adults' ability to understand speech in noisy settings. It aims to explore the relationship between caffeine intake and cognitive functions related to auditory processing, particularly focusing on selective attention and executive functions. Participants will be divided into experimental and placebo groups to assess the impact of caffeine on their speech comprehension in noise. The study seeks to fill a gap in existing literature regarding the cognitive effects of caffeine on auditory functions.

Why it matters

Potential benefit: If successful, this study could enhance our understanding of how caffeine may improve speech comprehension in challenging auditory environments.

How similar studies have gone: While studies have shown caffeine's effects on cognitive functions, this specific investigation into its impact on speech understanding in noise is novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* For both groups, it was planned to include individuals who had no hearing loss (SSO\<25 dB nHL), no history of neurological or psychological disorders, were non-smokers, and did not use ototoxic drugs.

Exclusion Criteria:

Where it's running

  • İstanbul Aydin University
    Istanbul, Istanbul, Turkey (Türkiye)
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.