Anvendelighed af vibro-taktil stimulering til behandling af spasmodisk dysfoni
Anvendeligheden af larynx vibro-taktil stimulering som en ikke-invasiv behandling af stemmelidelsen Spasmodisk dysfoni
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 2
- Fase 1
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Cagla Ozkul
- Telefonnummer: 612-624-4370
- E-mail: cozkul@umn.edu
Studiesteder
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Minnesota
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Minneapolis, Minnesota, Forenede Stater, 55414
- University of Minnesota
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inklusionskriterier:
- Diagnose af spasmodisk dysfoni (laryngeal dystoni) i minimum 6 måneder med dokumenteret symptomlindring efter Botox-indsprøjtning.
- Diagnosen stilles af en specialist i stemmelidelser.
Ekskluderingskriterier:
- Regelmæssig indtagelse af benzodiazepiner
- Kognitiv svækkelse: score < 27 på Mini-mental tilstandsundersøgelse
- Identificerer med en neurologisk eller muskuloskeletal funktionsnedsættelse, der påvirker talemotorisk funktion. Disse svækkelser kan omfatte en form for: dyskinesi, dystoni, essentiel tremor, Huntingtons sygdom, multipel systematrofi, muskelspændingsdysfoni, parkinsonisme, progressiv supranuklear parese, spasticitet, intrakraniel neoplasma (hjernetumor), spinal neoplasma, cerebrovaskulær Accident (cerebrovaskulær parese), Mild traumatisk hjerneskade, intrakraniel blødning, multipel sklerose
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: Intervention
Laryngeal vibro-tactile stimulation
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Participants received vibro-tactile stimulation (VTS) as a non-invasive treatment option.
Stimulators were a pair of light-weight encapsulated cylindrical vibrators applied to both sides of the larynx (voice box).
The vibration frequency for VTS was set be to 100Hz.
During VTS, participants feel a mild tingling or vibrating sensation at their larynx.
They applied VTS at home over a period of 8 weeks with a daily dosage of 20 minutes.
During weeks 1-4, the weekly dosage of VTS was gradually increased (week 1: 3 days/wk; week 2: 4 days/wk; week 3: 5 days/wk; week 4: 6 days/wk).
During weeks 5-8, participants applied VTS on self-selected days as needed, not exceeding 6 times a week.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Perceived Speech Effort (PSE) at Week 4
Tidsramme: Week 4
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Perceived Speech Effort was self-rated by participants on a 0-10 scale (0 = no effort, 10 = maximum effort) while reading standardized sentences at habitual pitch and loudness.
Ratings were collected immediately before and after each vibro-tactile stimulation session.
The PSE value reported here reflects the group mean at week 4.
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Week 4
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Perceived Speech Effort (PSE) at Week 8
Tidsramme: Week 8
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Perceived Speech Effort was self-rated by participants on a 0-10 scale (0 = no effort, 10 = maximum effort) while reading standardized sentences at habitual pitch and loudness.
Ratings were collected immediately before and after each vibro-tactile stimulation session.
The PSE value reported here reflects the group mean at week 8.
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Week 8
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Voice Quality Change (VQC) at Week 1
Tidsramme: Week 1
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Voice Quality Change (VQC) was self-assessed using a 5-point Likert scale (1 = very unnoticeable, 5 = very noticeable; 3 = neutral).
Ratings were recorded at the end of each VTS session.
VQC at week 1 represents a baseline measure of symptom severity.
It was computed as the mean of the first three sessions of VTS of the study.
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Week 1
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Voice Quality Change (VQC) at Week 8
Tidsramme: Week 8
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Voice Quality Change (VQC) was self-assessed using a 5-point Likert scale (1 = very unnoticeable, 5 = very noticeable; 3 = neutral).
Ratings were recorded at the end of each VTS session.
The score reflects the overall longitudinal change in symptoms experienced after treatment end.
VQC at week 8 was computed as the mean of the last three sessions of the study.
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Week 8
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Relative Change in Perceived Speech Effort (rPSE) for VTS Application Method
Tidsramme: 8 weeks
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Relative change in PSE (rPSE) was calculated as [(Post - Pre) / Pre] × 100.
The between-group difference in mean rPSE comparing VTS received during direct skin contact vs. VTS collar was assessed over the total study period of 8 weeks to understand if the VTS applied directly to the skin was more effective in reducing speech effort than VTS applied via the collar.
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8 weeks
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Adherence Rate (Feasibility)
Tidsramme: Week 1-4
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Number of participants who completed at least 80% of prescribed VTS sessions during the intervention period.
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Week 1-4
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Juergen Konczak, PhD, University of Minnesota
Publikationer og nyttige links
Generelle publikationer
- Konczak J, Bhaskaran D, Elangovan N, Oh J, Goding GS, Watson PJ. Effects of an 11-week vibro-tactile stimulation treatment on voice symptoms in laryngeal dystonia. Front Neurol. 2024 May 30;15:1403050. doi: 10.3389/fneur.2024.1403050. eCollection 2024.
- Mahnan A, Xu J, Oh J, Bhaskaran D, Zhang Y, Watson PJ, Konczak J. Laryngeal Vibration to Treat Abductor-Type Laryngeal Dystonia: Effectiveness and Cortical Response. Laryngoscope. 2026 Jan;136(1):368-376. doi: 10.1002/lary.70020. Epub 2025 Aug 8.
- Amini S, Elangovan N, Ozkul C, Konczak J. Usability and Feasibility of In-home Vibro-Tactile Stimulation for Treating Voice Symptoms in Laryngeal Dystonia. J Voice. 2025 Aug 23:S0892-1997(25)00329-7. doi: 10.1016/j.jvoice.2025.08.012. Online ahead of print.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- STUDY00019659
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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