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Non-Invasive Neuromodulation for Essential Tremor: Long-Term Safety and Effectiveness Study

17. august 2026 opdateret af: Ruijin Hospital

A Prospective, Single-Center, Single-Arm, Open-Label Clinical Study Evaluating the Long-Term Safety and Efficacy of Transcutaneous Afferent Patterned Stimulation (TAPS) in Patients With Essential Tremor

This is a prospective, single-center, single-arm, open-label clinical study designed to evaluate the long-term efficacy and safety of non-invasive neuromodulation using transcutaneous afferent patterned stimulation (TAPS) in patients with essential tremor (ET).

Essential tremor is a common movement disorder that can significantly impair daily functioning and quality of life. Pharmacological treatments are often limited by suboptimal efficacy or adverse effects, highlighting the need for alternative therapeutic approaches.

In this study, eligible participants with essential tremor will receive TAPS treatment over a defined follow-up period. Clinical outcomes, including tremor severity, functional performance, and patient-reported outcomes, will be assessed longitudinally to evaluate treatment effectiveness. Safety will be monitored throughout the study by recording adverse events and device-related complications.

The results of this study aim to provide clinical evidence regarding the long-term therapeutic potential and safety profile of TAPS as a non-invasive neuromodulation strategy for essential tremor.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

50

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Kina
      • Shanghai, Kina
        • Rekruttering
        • Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai 200025
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Adults aged ≥18 and <75 years
  • Clinical diagnosis of essential tremor (ET), characterized by postural and/or kinetic tremor, primarily affecting one or both upper limbs, with or without involvement of other body regions (e.g., head, voice, or lower limbs)
  • At least one major hand task score ≥2 on the TETRAS (The Essential Tremor Rating Assessment Scale), and a score ≥3 on the Bain & Findley Activities of Daily Living (BF-ADL) scale
  • Able and willing to provide written informed consent

Exclusion Criteria:

  • Presence of implanted electronic medical devices (e.g., deep brain stimulator or cardiac pacemaker)
  • History of thalamotomy or other neurosurgical procedures for tremor
  • History of epilepsy
  • Current treatment with botulinum toxin for upper limb tremor
  • Skin lesions on the upper limb at the stimulation site (e.g., tumors, hemangiomas)
  • Neurological disorders affecting the upper limbs
  • Known allergy to device materials (e.g., silicone, cotton textiles)
  • Pregnant women
  • Intake of caffeine or excessive alcohol within 8 hours prior to enrollment
  • Severe cardiovascular or cerebrovascular diseases, or other significant neurological disorders
  • Inability to comply with study procedures or follow-up

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: TAPS Treatment
Enhed: Transcutaneous Afferent Patterned Stimulation
A non-invasive, wearable neuromodulation device that delivers transcutaneous afferent patterned stimulation (TAPS) to modulate neural circuits associated with essential tremor. The device is applied according to the study protocol over the treatment period.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Tremor Severity (The Essential Tremor Rating Assessment Scale [TETRAS] Score)
Tidsramme: Baseline; Day 1; 1 month; 3 months
Change in tremor severity from baseline to each post-treatment time point, assessed using the The Essential Tremor Rating Assessment Scale (TETRAS). The TETRAS score ranges from 0 to 64, with higher scores indicating more severe tremor.
Baseline; Day 1; 1 month; 3 months
Incidence of Adverse Events
Tidsramme: 3 months
Incidence, type, and severity of adverse events occurring after treatment initiation. Adverse events will be graded according to standard criteria (e.g., CTCAE)
3 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Activities of Daily Living (Blessed Functional Activities of Daily Living [BF-ADL] Score)
Tidsramme: Baseline; Day 1; 1 month; 3 months
Change in activities of daily living from baseline to each post-treatment time point, assessed using the Blessed Functional Activities of Daily Living Scale (BF-ADL). The BF-ADL score ranges from 0 to 17, with higher scores indicating greater functional impairment.
Baseline; Day 1; 1 month; 3 months
Change in Anxiety Severity (Hamilton Anxiety Rating Scale [HAMA])
Tidsramme: Baseline; 1 month; 3 months
Change in anxiety severity from baseline to each post-treatment time point, assessed using the Hamilton Anxiety Rating Scale (HAMA). The HAMA score ranges from 0 to 56, with higher scores indicating more severe anxiety.
Baseline; 1 month; 3 months
Change in Depression Severity (Hamilton Depression Rating Scale [HAMD])
Tidsramme: Baseline; 1 month; 3 months
Change in depression severity from baseline to each post-treatment time point, assessed using the Hamilton Depression Rating Scale (HAMD). The HAMD score ranges from 0 to 52, with higher scores indicating more severe depression.
Baseline; 1 month; 3 months
Change in Cognitive Function (Montreal Cognitive Assessment [MoCA])
Tidsramme: Baseline; 1 month; 3 months
Change in cognitive function from baseline to each post-treatment time point, assessed using the Montreal Cognitive Assessment (MoCA). The MoCA score ranges from 0 to 30, with higher scores indicating better cognitive function.
Baseline; 1 month; 3 months
Change in Cognitive Function (Mini-Mental State Examination [MMSE])
Tidsramme: Baseline; 1 month; 3 months
Change in cognitive function from baseline to each post-treatment time point, assessed using the Mini-Mental State Examination (MMSE). The MMSE score ranges from 0 to 30, with higher scores indicating better cognitive function.
Baseline; 1 month; 3 months
Change in EEG Alpha Band Power
Tidsramme: Baseline; 1 month; 3 months
Change in electroencephalogram (EEG) alpha band power (8-12 Hz) from baseline to each post-treatment time point.
Baseline; 1 month; 3 months
Change in Motor Evoked Potential (MEP) Amplitude
Tidsramme: Baseline; 1 month; 3 months
Change in motor evoked potential (MEP) amplitude from baseline to each post-treatment time point, measured using transcranial magnetic stimulation. MEP amplitude is measured in millivolts (mV), with higher values indicating greater corticospinal excitability.
Baseline; 1 month; 3 months
Change in Functional Connectivity (fMRI)
Tidsramme: Baseline; 3 months
Change in functional connectivity between predefined brain regions from baseline to post-treatment, assessed using functional magnetic resonance imaging (fMRI).
Baseline; 3 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Ruijin Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

15. december 2025

Primær færdiggørelse (Anslået)

15. marts 2027

Studieafslutning (Anslået)

15. juni 2027

Datoer for studieregistrering

Først indsendt

22. marts 2026

Først indsendt, der opfyldte QC-kriterier

17. august 2026

Først opslået (Faktiske)

19. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

19. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. august 2026

Sidst verificeret

1. marts 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ET_TAPS

Plan for individuelle deltagerdata (IPD)

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