Under construction – not a live service
Sign in
Enrolling by invitationNo phase

Comparative Efficacy of Earplug Usage Instruction

Key facts

Who runs it
Sirinthorn Chanaveroj
Where
Chiang Mai, ThailandSee the site
Trial code
Status
Enrolling by invitation
People taking part
64 people, planned
Started
8 Jun 2026
Planned end
31 Aug 2026
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Video-Based Earplug Instruction
  • Paper-Based Earplug Instruction
Record updated
28 July 2026

Who can take part

Age
20 years to 60 years
Sex
Women and men
Healthy volunteers
Can take part

The registry criteria, word for word

Show all 7 criteriaShow less

Who can take part

  • Personnel aged 20-60 years old who report regular works in areas perceived as noisy department
  • Personnel who works at Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, during the year 2026
  • Personel who is willing and able to participate in the study throughout its duration

Who cannot take part

  • Individuals with active ear infections
  • Individuals with visual or auditory impairment that limit to read or see the instruction
  • Individuals with ear canal stenosis that limit to insert the earplug
  • Individuals who have limitation to use their hands to insert the ear plug

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 20 and 60 years old?

Where in Thailand

  • Department of Otolaryngology Faculty of Medicine, Chiang Mai UniversityChiang Mai, ThailandNo longer taking part

About the trial

What the trial wants to find out

The goal of this clinical trial is to learn whether video-based training or paper-based training is more effective at teaching correct earplug insertion technique, in hospital personnel at Maharaj Nakorn Chiang Mai Hospital who work in noise-exposed areas (e.g. laundry and kitchen units), aged 20-60 years. The main questions it aims to answer are:

Read full original descriptionShow less

1. Which training method ,between video-based and paper-based instruction, produces better earplug insertion skill immediately after training? 2. Is any improvement in earplug insertion skill sustained at 1-week follow-up?

Researchers will compare a video-based instruction group to a paper-based instruction group to see if one training format leads to better and more lasting earplug insertion skill, as measured by a standardized 20-point observational checklist.

Participants will:

* Undergo a baseline history and ear exam (otoscopy) and complete a demographic questionnaire . * Have their baseline earplug insertion skill assessed by a blinded observer Be randomly assigned to receive either a 5-minute video-based or paper-based instruction on proper earplug use . * Practice inserting earplugs and then be reassessed immediately after training * Return after 1 week for a follow-up assessment to test retention of the skill

The 2 groups in the trial

  • Arm 1 : Video-Based Earplug InstructionTreatment being tested

    Arm 1 * Arm Label: Video-based instruction * Arm Type: Experimental * Arm Description: Participants receive a 3-minute narrated video demonstrating proper earplug insertion technique, followed by practice and assessment.

    Treatment: Video-Based Earplug Instruction

  • Arm 2 : Paper-Based Earplug InstructionExisting treatment, for comparison

    Arm 2 * Arm Label: Paper-based instruction * Arm Type: Active Comparator * Arm Description: Participants receive a paper-based illustrated infographic with written instructions covering identical content to the video, followed by practice and assessment.

    Treatment: Paper-Based Earplug Instruction

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
Comparative Efficacy of Earplug Usage Instruction : A Randomized Trial of Video-Based And Paper-Based Instruction
Fit questions
Built from NCT07731321, who can take part
Record updated
28 July 2026