NCT06416553

Brief Summary

Up to 90% of patients with Parkinson's disease (PD) have hypokinetic dysarthria (HD) in the early phase of the illness. HD is characterized by a harsh breathy voice quality, reduced variability of pitch and loudness and imprecise articulation. This project investigates the novel combination of speech therapy and home-based non-invasive brain stimulation (tDCS) treatment in order to increase overall positive effects on HD in PD. Using a novel multimodal analysis approach based on functional magnetic resonance and acoustic signal processing, we will be able to monitor changes in different domains of speech, as well as associated changes in brain plasticity.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P50-P75 for not_applicable parkinson-disease

Timeline
Completed

Started Jan 2023

Typical duration for not_applicable parkinson-disease

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 10, 2023

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

February 8, 2024

Completed
3 months until next milestone

First Posted

Study publicly available on registry

May 16, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2025

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2025

Completed
Last Updated

May 16, 2024

Status Verified

May 1, 2024

Enrollment Period

2.8 years

First QC Date

February 8, 2024

Last Update Submit

May 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in score of the 3F Test (the unabbreviated title- "the 3F Test Dysarthric Profile")

    The 3F Test Dysarthric Profile enables clinicians to characterize a wide range of signs and symptoms of dysarthria. The minimum value of this scale is 0 (anarthria), the maximum value is 90 (no disorder). Higher scores of this scale mean better outcome. This test will be administrated by speech pathologist.

    At baseline assessment (Visit- V0), after completion of 4 weeks of intervention (stimulation+ speech therapy) (Visit V1) and 4 weeks after completion of intervention (Visit V2)

Secondary Outcomes (1)

  • Resting state fMRI

    At baseline assessment (Visit- V0), after completion of 4 weeks of intervention (stimulation+ speech therapy) (V1) and 4 weeks after completion of intervention (V2)

Study Arms (2)

PD patients with real tDCS and speech therapy

ACTIVE COMPARATOR

Patients will receive real tDCS during 4 weeks, 5 sessions per week. Altogether 20 sessions, each 20 minutes long. Stimulation is combined with Lee-Silverman voice treatment, 4 sessions per week. Altogether 16 sessions, each 1 hour long.

Device: Home-based transcranial direct current stimulation- real tDCSBehavioral: Lee-Silverman voice treatment

PD patients with sham tDCS and speech therapy

SHAM COMPARATOR

Patients will receive sham tDCS during 4 weeks, 5 sessions per week. Altogether 20 sessions, each 20 minutes long. Stimulation is combined with Lee-Silverman voice treatment, 4 sessions per week. Altogether 16 sessions, each 1 hour long.

Device: Home-based transcranial direct current stimulation- sham tDCSBehavioral: Lee-Silverman voice treatment

Interventions

Home-based transcranial direct current stimulation- anode over right STG, cathode over left STG, 2 mA stimulation with 1x1 tDCS mini-CT device by Soterix Medical

PD patients with real tDCS and speech therapy

Home-based transcranial direct current stimulation- anode over right STG, cathode over left STG, sham stimulation with tDCS mini-CT device by Soterix Medical

PD patients with sham tDCS and speech therapy

Remote Lee Silverman Voice Treatment (LSVT) delivered via telepractice by speech therapist. LSVT is a high-effort speech therapy that is primarily focused on improving speech loudness during 16 individual one-hour sessions in one month.

PD patients with real tDCS and speech therapyPD patients with sham tDCS and speech therapy

Eligibility Criteria

Age50 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients with clinically established PD (Postuma et al. 2016)

You may not qualify if:

  • psychiatric disorders, including major depression, hallucinations
  • any MRI-incompatible metal in the body
  • epilepsy
  • lack of cooperation
  • presence of dementia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Central European Institute of Technology

Brno, Czechia

RECRUITING

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A two parallel group, randomized, placebo controlled design will be used. Twenty PD patients will be stimulated for 4 weeks (20 sessions), stimulation will be combined with speech therapy . Other twenty PD patients will be stimulated with the same protocol using sham stimulation, sham stimulation will be combined with speech therapy.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 8, 2024

First Posted

May 16, 2024

Study Start

January 10, 2023

Primary Completion

November 15, 2025

Study Completion

December 30, 2025

Last Updated

May 16, 2024

Record last verified: 2024-05

Locations