Intrapatient Comparison of STN and GPi tTIS in PD
Intrapatient Comparison of Subthalamic and Globus Pallidus Internus Temporal Interference Stimulation in Parkinson's Disease
1 other identifier
interventional
100
1 country
1
Brief Summary
The goal of this clinical trial is to investigate the therapeutic efficacy of tTIS in patients with Parkinson's disease and to evaluate the immediate effects and conduct intrapatient comparisons of individualized 130 Hz Subthalamic Nucleus-transcranial Temporal Interference Stimulation (STN-tTIS) and Globus Pallidus Internus-transcranial Temporal Interference Stimulation (GPi-tTIS) on motor symptoms in patients with early to mid-stage Parkinson's Disease (PD) during "off" medication states. The main questions this study aims to answer are:
- 1.Can tTIS significantly improve the motor symptoms of patients with Parkinson's disease?
- 2.Is the therapeutic effect of STN-tTIS superior to that of GPi-tTIS?
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable parkinson-disease
Started Apr 2025
1 active site
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
April 23, 2025
CompletedFirst Submitted
Initial submission to the registry
June 5, 2025
CompletedFirst Posted
Study publicly available on registry
June 12, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2026
April 22, 2026
April 1, 2025
1.5 years
June 5, 2025
April 20, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
MDS-UPDRS-Ⅲ scores
The score range for MDS-UPDRS-III is from 0 to 132. The minimum value is 0, indicating no motor impairment, and the maximum value is 132, indicating the most severe motor impairment. Higher scores on the MDS-UPDRS-III indicate worse outcomes, as they reflect greater severity of motor symptoms.
pre-intervention, immediately after the intervention
Secondary Outcomes (1)
MDS-UPDRS-Ⅲ sub-scores
pre-intervention, immediately after the intervention
Study Arms (3)
STN-tTIS
EXPERIMENTALPatients in this group receive 20 minutes of individualized 130 Hz STN-tTIS sessions targeting the more affected hemisphere during medication "off" and are evaluated for the MDS-UPDRS-Ⅲ before and after treatment.
GPi-tTIS
EXPERIMENTALPatients in this group receive 20 minutes of individualized 130 Hz GPi-tTIS sessions targeting the more affected hemisphere during medication "off" and are evaluated for the MDS-UPDRS-Ⅲ both before and after treatment.
Sham stimulation
EXPERIMENTALPatients in this group receive sham stimulation targeting the subthalamic nucleus in the more affected hemisphere during the medication "off" state, with a stimulation beat frequency of 0 Hz. Each session lasts 20 minutes, and the MDS-UPDRS-III is assessed both before and after treatment.
Interventions
To design the individualized STN-tTIS, each patient completes a T1-weighted anatomical magnetic resonance imaging (MRI) scan. The individual's structural brain MRI data are used to determine the STN-tTIS montage and stimulation settings through computational modeling.
Eligibility Criteria
You may qualify if:
- Diagnosis of primary Parkinson's disease (MDS);
- Hoehn \& Yahr stage ≤ 3;
- Antiparkinsonian drugs must have remained unchanged in the past four weeks, and the dosage must have remained stable throughout the study.
You may not qualify if:
- Presence of neurological disorders that may affect the study (e.g., traumatic brain injury);
- Antipsychotics, antidepressants, or dopamine modulators outside of PD drugs;
- Metal devices in the head or heart (e.g., deep brain stimulators, pacemakers);
- Unstable vital signs.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Ruijin Hospitallead
Study Sites (1)
Ruijin Hospital
Shanghai, Shanghai Municipality, China, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 5, 2025
First Posted
June 12, 2025
Study Start
April 23, 2025
Primary Completion (Estimated)
November 1, 2026
Study Completion (Estimated)
November 1, 2026
Last Updated
April 22, 2026
Record last verified: 2025-04
Data Sharing
- IPD Sharing
- Will not share