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CompletedNCT06397391TREM-ABUpdated Apr 29, 2025

Nonlinear Absorber in Essential Tremor Treatment

An interventional study of TREM-AB in Essential Tremor, sponsored by Hospices Civils de Lyon. Completed at 1 site in France. Open to participants aged 20 Years to 90 Years. Per ClinicalTrials.gov, last updated 2025-04-29.

Sponsored by Hospices Civils de Lyon · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
5
Allocation
Not applicable
Ages
20 Years to 90 Years
Sex
All
01

Study summary

The goal of this study is to develop a non linear absorber for patients with essential tremor (ET). It 's an extern passive medical device which should improve patients tremor.

Investigators will evaluate the impact of this medical device through one clinical scale (Fahn-Tolosa-Marin) and accelerometry record. Investigators focus on motor improvement.

02

Conditions studied

  • Essential Tremor

Keywords

  • Essential tremor
  • Passive treatment
  • Nonlinear absorber
03

In context

Tremor

257 studies on the registry are indexed under Tremor; 59 are open to participants now.

This study's enrollment of 5 is below the median of 25 across 184 interventional studies indexed under Tremor.

Browse Tremor studies →

Lead sponsor

Hospices Civils de Lyon is the lead sponsor of 1,826 studies on the registry; 439 are open to participants now.

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

04

Who can participate

Ages eligible
20 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Adult man or woman between 20 and 90 years old
  • Diagnosis of ET (Essential Tremor) established by a neurologist
  • ET affecting the upper limbs, associated or not with head tremor
  • Drug-resistant nature of ET (failure of beta-blockers, mysoline, benzodiazepine)
  • Affiliate to a social security or similar system
  • Having given written consent to participate in the study, free and informed.

Exclusion criteria

Exclusion Criteria:

  • Severe comorbidity
  • ET affecting only the leader
  • Wounds on the forearm
  • Modification of treatment or surgery to manage ET, planned within 3 months following inclusion
  • Cognitive disorder known or suspected by the investigator
  • Pregnant or breastfeeding woman
  • Persons placed under guardianship, curatorship or under judicial protection
  • Persons deprived of liberty, subject to psychiatric care or admitted to a health or social establishment for purposes other than that of clinical investigation

Criteria for premature discharge

  • MMSE (Mini-Mental State Examination) score\<24;
  • ET of the patient with frequency range not between 4 to 6 Hz or 8 to 12 Hz and/or amplitudes of movement greater than 20°.
  • modification of treatment for ET or performance of tremor surgery before the final visit;
  • withdrawal of consent or refusal to continue visits.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • Experimental
    Medical device

    Patients will test medical device on site during 1 hour. EMG (electromyogram) and accelerometry will be performed before and after this hour. As same as clinical scale (Fahn-tolosa-Marin)

    Device: TREM-AB

Interventions

  • DeviceTREM-AB

    Wearing medical device on site during 1 hour

06

What researchers measure

Primary outcomes

  1. Tremor improvement

    To assess tremor improvement, investigators will use the Fahn-Tolosa-Marin rating scale. This scale allows, thanks to a score, to assess clinical and functional evaluation of the tremor. Different aspect of the tremor are evaluate like the frequency of the tremor of the head, hand, arm..etc. and the impact of the tremor on daily actions (like writing, drawing, ...). This score will be assessed at Visit 1 and 2. During visit 2, the assessment will be performed before and 1 hour after wearing the device.

    Time frame: 6 months maximum

Secondary outcomes

  1. Tremor frequency

    To assess tremor frequency, investigators will use accelerometry record and electromyography. This score will be assessed at Visit 1 and 2. During visit 2, the assessment will be performed before and 1 hour after wearing.the device.

    Time frame: 6 months maximum

  2. Tolerance to wearing the device

    Adverse reactions occurring during use of the device

    Time frame: 6 months maximum

  3. Patient satisfaction with the device measured by a specific multidimensional questionnaire

    A multidimensional questionnaire has been built specifically for the study. An EVA scale is used to assess whether the patient has experienced discomfort, pain or discomfort (0-10). The higher the score, the more severe the discomfort. Ease of installation of the device and intention to use it on a daily basis if this was possible are evaluated by questions with binary responses (yes or no). Free fields are used to complete these responses and to suggest improvements of the prototype. This score will be assessed at the end of Visit 2

    Time frame: 6 months maximum

07

Study locations

1 site
  • Service Pathologies du mouvement et neuromusculaire, Hopital neurologique Pierre Wertheimer
    Bron, 69500, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 29, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06397391
Lead sponsor
Hospices Civils de Lyon
Responsible party
Sponsor
First posted
May 2, 2024
Start date
Aug 30, 2024
Primary completion
Apr 4, 2025
Completion
Apr 4, 2025
Last update
Apr 29, 2025

Study contacts

Stéphane THOBOIS, MS, PhD
principal investigator · Hopital neurologique Pierre Wertheimer

Oversight

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

Not currently enrolling

This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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