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CompletedNCT07626424Updated Nov 10, 2026

Local Vibration for Drooling in Children With Cerebral Palsy

An interventional study of Local Vibration Therapy and Sham Vibration in Cerebral Palsy (CP), sponsored by Bitlis Eren University. Completed at 1 site in Turkey (Türkiye). Open to participants aged 2 Years to 18 Years. Per ClinicalTrials.gov, last updated 2026-11-10.

Sponsored by Bitlis Eren University · Not applicable, Interventional, and Treatment

Updated Nov 10, 2026Now CompletedNow Active, not recruiting+3 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
23
Allocation
Randomized
Ages
2 Years to 18 Years
Sex
All
01

Study summary

This randomized-controlled trial evaluates local vibration therapy for drooling and orofacial muscle biomechanics in children with cerebral palsy. Participants receive either local vibration plus conventional physiotherapy or sham vibration plus conventional physiotherapy.

Read the detailed description

This randomized-controlled trial aims to evaluate the effects of local vibration therapy on drooling severity and perioral and submandibular muscle biomechanics in children with cerebral palsy. Participants will be allocated to either an experimental group receiving local vibration in addition to conventional physiotherapy or a control group receiving sham vibration with conventional physiotherapy. Local vibration will be applied to the perioral and submandibular regions for 5 minutes each over three consecutive days. Assessments will be conducted at baseline, immediately after the third intervention session, and at 1-week follow-up.

02

Conditions studied

  • Cerebral Palsy (CP)

Keywords

  • Drooling
  • Local vibration
03

In context

Cerebral Palsy

1,936 studies on the registry are indexed under Cerebral Palsy; 458 are open to participants now.

This study's enrollment of 23 is below the median of 34 across 1,431 interventional studies indexed under Cerebral Palsy.

Browse Cerebral Palsy studies →

Lead sponsor

Bitlis Eren University is the lead sponsor of 51 studies on the registry; 17 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
2 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of cerebral palsy
  • Age between 2 and 18 years
  • Presence of anterior drooling
  • Drooling severity and frequency score ≥ 3 on a standardized drooling scale

Exclusion criteria

Exclusion Criteria:

  • History of surgical intervention for drooling management
  • History of botulinum toxin injection for drooling management
  • Use of medications affecting salivary control
  • Presence of progressive neurological disease
  • Presence of salivary gland pathology or active upper respiratory tract infection
  • History or symptoms of aspiration pneumonia within the last 6 months
  • Indication for surgical treatment of drooling (e.g., more than four clothing changes per day and presence of chin or neck dermatitis)
  • Uncontrolled seizures
  • Presence of oral or perioral lesions
  • Presence of gastrostomy tube
  • Treatment adherence below 85%
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
23 participants (actual)

Study arms

  • Experimental
    Local Vibration Group

    In this group, participants will receive conventional physiotherapy combined with local vibration therapy. Local vibration will be applied to the perioral and submandibular regions for 5 minutes each (total 10 minutes per session) once daily for three consecutive days using a vibration device.

    Other: Local Vibration Therapy

  • Sham comparator
    Sham Vibration Group

    In this group, participants will receive conventional physiotherapy combined with sham vibration. The vibration device will be activated but not applied to the skin surface. The procedure will mimic the experimental protocol in duration and setting and will be performed once daily for three consecutive days.

    Other: Sham Vibration

Interventions

  • OtherLocal Vibration Therapy

    Local vibration therapy will be applied to the perioral and submandibular regions using a vibration device for 5 minutes each (total 10 minutes per session), once daily for three consecutive days.

  • OtherSham Vibration

    Sham vibration will be administered using the same device without contact with the skin. The intervention will be delivered for 10 minutes per session, once daily for three consecutive days.

06

What researchers measure

Primary outcomes

  1. Muscle Tone

    Muscle tone of the perioral and submandibular muscles (orbicularis oris and anterior digastric muscles) will be evaluated using a portable hand-held myotonometer (MyotonPRO). The MyotonPRO applies a short mechanical impulse to the skin overlying the muscle or fascia. The tissue response generates a signal that is recorded, and the internal software produces an acceleration graph.

    Time frame: Baseline, immediately after the third intervention session, and 1-week follow-up

  2. Muscle Stiffness

    Muscle stiffness of the perioral and submandibular muscles (orbicularis oris and anterior digastric muscles) will be evaluated using a portable hand-held myotonometer (MyotonPRO). The MyotonPRO applies a short mechanical impulse to the skin overlying the muscle or fascia. The tissue response generates a signal that is recorded, and the internal software produces an acceleration graph.

    Time frame: Baseline, immediately after the third intervention session, and 1-week follow-up

  3. Muscle Elasticity (logarithmic decrement)

    Muscle elasticity of the perioral and submandibular muscles (orbicularis oris and anterior digastric muscles) will be evaluated using a portable hand-held myotonometer (MyotonPRO). The MyotonPRO applies a short mechanical impulse to the skin overlying the muscle or fascia. The tissue response generates a signal that is recorded, and the internal software produces an acceleration graph.

    Time frame: Baseline, immediately after the third intervention session, and 1-week follow-up

Secondary outcomes

  1. Change in drooling severity and frequency

    Drooling severity and frequency will be assessed using a standardized drooling scale, with severity scored from 1 (no drooling) to 5 (severe drooling) and frequency scored from 1 (no drooling) to 4 (constant drooling)

    Time frame: Baseline, immediately after the third intervention session, and 1-week follow-up

  2. Global Rating of Change Scale

    Parent-reported global rating of change using the Global Rating of Change Scale. Scores range from -7 (very much worse) to +7 (very much improved), with higher scores indicating greater perceived improvement.

    Time frame: Immediately after the third intervention session and 1-week follow-up

  3. Caregiver-reported drooling burden

    Caregivers will report the frequency of clothing changes and use of tissues related to drooling.

    Time frame: Baseline, immediately after the third intervention session, and 1-week follow-up

07

Study locations

1 site
  • Atlas Özel Eğitim ve Rehabilitasyon Merkezi
    Van, Turkey (Türkiye)
08

Updates

2 registry updates since Sep 25, 2026
Status
Recruiting→Active, not recruiting→Completed
changed Nov 3, 2026 · changed Nov 10, 2026
Primary completion
Aug 27, 2026→Nov 5, 2026
Nov 3, 2026
Study completion
Aug 27, 2026→Nov 5, 2026
Nov 3, 2026
Enrollment
20 (estimated)→23 (actual)
Nov 10, 2026
Show all 2 updates
  1. Nov 10, 2026
    Active, not recruiting→Completed
    Enrollment 20 (estimated)→23 (actual)
    + 2 other changes: verification date and date precision
  2. Nov 3, 2026
    Recruiting→Active, not recruiting
    Primary completion Aug 27, 2026→Nov 5, 2026
    Study completion Aug 27, 2026→Nov 5, 2026
    + 3 other changes: verification date, contact details and site details

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07626424
Lead sponsor
Bitlis Eren University
Responsible party
Merve Tunçdemir (Assistant Professor, Bitlis Eren University) — Principal investigator
First posted
Jun 4, 2026
Start date
Jun 15, 2026
Primary completion
Nov 5, 2026
Completion
Nov 5, 2026
Last update
Nov 10, 2026

Study contacts

Merve Tunçdemir, Asst. Prof.
principal investigator · Bitlis Eren University
Ömer Dursun, Assoc. Prof.
principal investigator · Bitlis Eren University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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