Interleaving Stimulation Improves Dyskinesia in Parkinson's Disease

January 25, 2024 updated by: Jian Wang, Huashan Hospital

Interleaving Stimulation Improves Dyskinesia in Parkinson's Disease: Randomized, Double-blind, Controlled Trial

This study is designed as a prospective, randomized, double-blind, controlled study to assess putative differences in the effect of interleaving stimulation and empirical stimulation with regards to post-operation dyskinesia control. The primary objective is to assess putative differences in the effect of interleaving stimulation and empirical stimulation with regards to dyskinesia control.

Study Overview

Detailed Description

This study is designed as a prospective, randomized, double-blind, controlled study to assess putative differences in the effect of interleaving stimulation and empirical stimulation with regards to post-operation dyskinesia control. The primary objective is to assess putative differences in the effect of interleaving stimulation and empirical stimulation with regards to dyskinesia control.

50 Patients will be randomly assigned to either the interleaving stimulation modes group (ISG) or the empirical stimulation modes group (ESG). In ISG, empirical stimulation for the first 3 months, followed by interleaving programming period for 6 months, and any stimulation decided by the neurologists/neurosurgeons for the final 3 months. In ESG, empirical programming for the first 9 months' period, followed by any stimulation decided by the neurologists/neurosurgeons for the final 3 months. The change of dyskinesia scores (UPDRS IV, item 32 + item 33), Parkinson's disease quality of life-39 (PDQ-39) scores, scores of United Parkinson's Disease Rating Scale Part III as well as scores of neuropsychological Battery in interleaving stimulation compared to empirical programming modes will be measured based on corresponding time frame. Finally, the results will be analyzed via proper statistical methods and thus the conclusion will be drawn.

Study Type

Interventional

Enrollment (Estimated)

50

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Shanghai
      • Shanghai, Shanghai, China, 200040

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 1. Patients at the age of 30-65 years old. 2. Patients diagnosed as Parkinson's disease according to the UK Parkinson's Disease Society Brain Bank criteria.

    3. Patients at Hoehn and Yahr stage 3 or lower in the on-state and stage 2 - 4 in the off-state.

    4. The disease duration of 5 years or more. 5. Patients with deep levodopa-responsive Parkinson's disease, and are not adequately controlled by drug therapy.

Exclusion Criteria:

  • major illness or medical comorbidities, depression that is untreated but judged to be clinically significant by an investigator, cochlear implants, cardiac pacemakers, needs for diathermy, anticoagulant therapy, previous neuro-surgical procedure or ablative therapy, frank dementia according to cognitive screening, drug or alcohol abuse, being a woman of child-bearing potential, having a positive pregnancy test, or presence of a terminal illness.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: empirical stimulation modes group (ESG)
empirical programming for the first 9 months' period, followed by any stimulation decided by the neurologists/neurosurgeons for the final 3 months.
Patients are settled with simple polar stimulation with combined parameters adjustment (monopolar mode, 60~90µs pulse width, 130~185Hz frequency and varied voltage) during the follow-up.
Experimental: interleaving stimulation modes group (ISG)
empirical stimulation for the first 3 months, followed by interleaving programming period for 6 months, and any stimulation decided by the neurologists/neurosurgeons for the final 3 months.
ILS consists of two rapid and alternate stimulation programs with different contacts, amplitudes, and pulse width but the same frequency up to a maximum of 125Hz. Contact selection is determined by postoperative stereotactic computed tomography and clinical evaluation to achieve a balance between motor improvement and tolerable side effects. For example, ILS is successfully applied for PD motor symptoms (stimulation of subthalamic nucleus) as well as dyskinesia (additional stimulation of zona incerta).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
dyskinesia scores (United Parkinson's Disease Rating Scale Part IV, item 32 + item 33)
Time Frame: 3 months and 9 months
Measure the changes of dyskinesia scores (United Parkinson's Disease Rating Scale Part IV, item 32 + item 33) in interleaving stimulation compared to empirical programming modes. The total scores range from 0 (good health) to 4 (poor health).
3 months and 9 months
Parkinson's disease quality of life-39 (PDQ-39) scores
Time Frame: 3 months and 9 months
Measure the changes of Parkinson's disease quality of life-39 (PDQ-39) scores in interleaving stimulation compared to empirical programming modes. The total scores range from 0 (good health) to 156 (poor health).
3 months and 9 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
scores of United Parkinson's Disease Rating Scale Part III
Time Frame: 3 months and 9 months
Measure the changes of scores of United Parkinson's Disease Rating Scale Part III in interleaving stimulation compared to empirical programming modes. The total scores range from 0 (good health) to 132 (poor health).
3 months and 9 months
Montreal cognitive assessment scores
Time Frame: 3 months and 9 months
Measure the scores of Montreal cognitive assessment in interleaving stimulation compared to empirical programming modes. The total scores range from 0 (poor cognition) to 30 (good cognition).
3 months and 9 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Study Director: Feng-Tao Liu, MD, Huashan Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 1, 2022

Primary Completion (Estimated)

December 1, 2024

Study Completion (Estimated)

February 28, 2025

Study Registration Dates

First Submitted

December 14, 2023

First Submitted That Met QC Criteria

January 25, 2024

First Posted (Estimated)

February 2, 2024

Study Record Updates

Last Update Posted (Estimated)

February 2, 2024

Last Update Submitted That Met QC Criteria

January 25, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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