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NCT Number: NCT05558189

Vibrotactile Coordinated Reset for the Treatment of Post Surgery Refractory Parkinson's Disease Patients

The purpose of our study is to evaluate Vibrotactile Coordinated Reset stimulation (vCR) and its effects on refractory post-surgery PD. vCR will be administered with a device called the Stanford Glove. vCR is expected to provide patients with a non-invasive alternative to the most widely used treatments such as levodopa and or deep brain stimulation. Patients will be followed for two years.

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Key information

Conditions

Parkinson Disease Basal Ganglia Diseases Brain Diseases Central Nervous System Diseases Movement Disorders Nervous System Diseases Neurodegenerative Diseases Parkinsonian Disorders Synucleinopathies

Age range

35 year–92 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Stanford University

Stanford, California, 94305, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age at the time of enrollment: 35 - 92 years
  • Diagnosis of idiopathic Parkinson's disease
  • Surgical treatment for Parkinson's disease that does not involve Deep Brain Stimulation
  • Fluent in English
  • Appropriate social support if required during an off state.
  • Comfortable with technology; can use a computer, check email, and access the internet; can initiate and engage in a virtual meeting for training and monitoring purposes.
  • Lives in the United States

Exclusion criteria

  • Any significant neuro-psychiatric problems, including acute confusional state, ongoing psychosis, or suicidal tendencies
  • Any current drug or alcohol abuse.
  • Participation in another drug, device, or biologics trial concurrently or within the preceding 30 days. Any other trial participation should be approved by the Principal Investigators.
  • Pregnancy, breast-feeding or wanting to become pregnant
  • Patient is unable to communicate properly with staff (i.e., severe speech problems)
  • Excessive drooling
  • Sensory abnormalities of the fingertips
  • Deep Brain Stimulation treatment
  • PD symptoms so severe and that the patient is bed-bound

Treatment and study plan

Vibrotactile Coordinated Reset (vCR)

Device

The purpose of this study is to test the efficacy of vibrotactile coordinated reset stimulation on human subject participants who have refractory Parkinson's disease post surgical treatment

Primary outcomes

  1. Movement Disorders Society Unified Parkinson's Disease Rating Scale Part 3 (MDS-UPDRS III) change from baseline to 24 months.

    Time frame: 24 months

    This scale measures motor ability within Parkinson's patients. For part 3, the scales minimum values is 0 and max value is 132. Higher scores indicate more impaired motor ability, while lower scores indicate less impaired motor ability. A score of 0 indicates no motor impairment.

Secondary outcomes

  1. Levodopa equivalent daily dose (LEDD) change from baseline to 24 months

    Time frame: 24 months

    LEDD is calculated as a daily sum of levodopa in each Parkinson's medication

  2. Communicative Participation Item Bank (CPIB; Short Form) change from baseline to 24 months.

    Time frame: 24 months

    The CPIB is a questionnaire that measures speech complications. The questionnaire is scored from 0 to 30, with a higher score indicating increased speech difficulties.

  3. Voice Handicap Index (VHI-10) change from baseline to 24 months

    Time frame: 24 months

    This questionnaire can be filled out by patients and assesses the impact that voice problems and limitations have on the individual's overall daily function. Questionnaire is scored from 0 to 40, with a higher score indicating increased speech difficulties.

  4. Freezing of gait questionnaire (FOG) change from baseline to 24 months

    Time frame: 24 months

    The Freezing of Gait Questionnaire (FOG) assesses severity unrelated to falls in patients with Parkinson's Disease (PD), FOG frequency, disturbances in gait, and relationship to clinical features conceptually associated with gait and motor aspects (e.g., turning). The FOG is comprised of 6 questions measured on a 0 to 4 scale (where 0 is normal and 4 represents severe abnormalities). The scores are summed together with 0 representing the best possible score and 24 representing the worst possible score.

  5. Vibratory temporal discrimination task (VTDT) change from baseline to 24 months.

    Time frame: 24 months

    The vibratory temporal discrimination task (VTDT) consists of two vibratory bursts, with one burst delivered to the index finger and one burst to the middle finger. This procedure will be performed on the right and left hand separately. The patient is instructed to judge if he/she felt a delay between the two vibratory bursts. The inner stimulus interval (ISI) is RECORDED when the participant indicates that they can feel a difference in time between the two vibrations. The ISI can range from 10ms-110 ms

  6. Movement disorders unified Parkinson's rating scale (MDS-UPDRS) part 1 change from baseline to 24 months.

    Time frame: 24 months

    The MDS-UPDRS part 1 focuses on non-motor symptoms, such as dementia, depression, and psychosis. The total summed score ranges from 0-52 with higher scores indicating increased non-motor impairment.

  7. Movement disorders unified Parkinson's rating scale (MDS-UPDRS) part 2 change from baseline to 24 months.

    Time frame: 24 months

    The MDS-UPDRS part 2 focuses on the patient's ability to perform daily motor activities including dressing, grooming, and using utensils. The total summed score ranges from 0-52 with higher scores indicating increased daily motor impairment.

  8. Movement disorders unified Parkinson's rating scale (MDS-UPDRS) part 4 change from baseline to 24 months.

    Time frame: 24 months

    The MDS-UPDRS 4 focuses on Measures the complications of treatment, e.g. dyskinesias and motor fluctuations. The total summed score ranges from 0-24 with higher scores indicating increased motor complications.

  9. Parkinson's disease cognitive functional rating scale (PD-CFRS) change from baseline to 24 months.

    Time frame: 24 months

    The PD-CFRS capture subjective daily functional cognitive decline among patients with Parkinson's disease over the past 2 weeks. The scale ranges from 0 to 24, with higher scores indicative of cognitive decline.

  10. Parkinson's Disease-Cognitive Rating Scale (PDCRS) change from baseline to 24 months.

    Time frame: 24 months

    The PDCRS is a cognitive test designed to designed to cover the full spectrum of cognitive defects associated with Parkinson's Disease. The total test score ranges from 0 - 134, with higher scores indicating less cognitive impairment.

  11. Parkinsons disease quality of life questionnaire-39 (PDQ-39) change from baseline to 24 months

    Time frame: 24 months

    The PD Quality of Life Questionnaire-39 (PDQ-39) is a self-report questionnaire that examines health related difficulties specific to PD in eight quality of life categories within the last month. Items are grouped into eight scales that are scored by expressing summed item scores as a percentage score ranging between 0 and 100, with higher % indicating more health problems.

Study contacts

Contact information is provided by the study sponsor or research team.

Jessica K Yankulova

CONTACT

[email protected]

650-474-9547

Sponsors and collaborators

Lead sponsor

Stanford University

Other

Registry information

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Sep 28, 2022
Registry last updated
Nov 25, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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