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Taking people in FranceNo phase

Deafness and Cognition in Middle-aged Adults

Key facts

Who runs it
Assistance Publique - Hôpitaux de Paris
Where
Paris, FranceSee the site
Trial code
Status
Recruiting
People taking part
180 people, planned
Started
24 May 2022
Expected to end
24 May 2027
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Cognitive and audiometry evaluation
Record updated
15 September 2025

Who can take part

Age
45 years to 64 years
Sex
Women and men
Healthy volunteers
Can take part

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • Cases: Patients aged between 45 to 64 years with severe to profound bilateral post-lingual sensorineural hearing loss with a maximum intelligibility of 70% (disyllabic words) in free-field silence with hearing aids at 60 dB SPL, current in french
  • Controls: normal hearing subjects matched on age, sex and education level

Who cannot take part

  • Psychotropic drug treatment
  • Past and current history of neurological and psychiatric disorders including meningitis
  • Associated disability that prevents the tests from being performed
  • Vulnerable subject

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 45 and 64 years old?

Where in France

  • Centre de Recherche en Audiologie (CReA) - Groupe Hospitalier Pitié-SalpêtrièreParis, FranceContact: Isabelle Dr MOSNIER, MDTaking people

About the trial

What the trial wants to find out

A mild cognitive impairment was observed in 50% of cochlear implant candidates aged 65 years and over, compared to 5-19% in general population. No studies analysed cognition in patients younger than 65 years. The aim of our study was to compare cognitive function between patients with severe and profound hearing loss and patients with normal hearing in patients aged 45 to 64 years.

The 2 groups in the trial

  • Cases: Patients with severe to profound hearing lossTreatment being tested

    Patients aged between 45 to 64 years with severe to profound bilateral post-lingual sensorineural hearing loss with a maximum intelligibility of 70% (disyllabic words) in free-field silence with hearing aids at 60 dB SPL

    Treatment: Cognitive and audiometry evaluation

  • Controls: 90 matched subjects with normal hearingExisting treatment, for comparison

    Healthy controls aged between 45 to 64 years with normal hearing on pure-tone audiometry (as function of ISO 7029 reference)

    Treatment: Cognitive and audiometry evaluation

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Impact of Severe to Profound Deafness on Cognitive Functions in Middle-aged Adults
Fit questions
Built from NCT05149742, who can take part
Record updated
15 September 2025