The Efficacy and Safety of Temporal Interference Stimulation on Motor Symptoms of Parkinson's Disease

August 8, 2026 updated by: Panpan Hu, MD, The First Affiliated Hospital of Anhui Medical University

The Efficacy and Safety of Temporal Interference Stimulation on Motor Symptoms of Parkinson's Disease: A Three-arm, Randomized, Double-blind, Parallel-controlled Study

This study aimed to evaluate the clinical efficacy and safety of temporal interference stimulation (TIS) targeting different targets in patients with Parkinson's disease (PD), and to investigate the associated neurophysiological mechanisms. A three-arm, randomised, double-blind, parallel-group design was employed, consisting of a right globus pallidus internus (GPi) stimulation group, a right subthalamic nucleus (STN) stimulation group, and a sham stimulation group. PD patients in the OFF-medication state (≥12 hours after the last dopaminergic dose) were randomly assigned to receive either active TIS targeting the GPi or STN, or sham stimulation, with each session lasting 30 minutes. Clinical symptom assessments were conducted before and immediately after the intervention, and safety was monitored throughout by the research team.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
96

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Anhui
      • Hefei, Anhui, China
        • The First Affiliated Hospital of Anhui Medical University

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age >= 40 years;
  2. Meet the diagnostic criteria for primary Parkinson's disease (MDS Parkinson's Disease Diagnostic Criteria (2015 Edition));
  3. No medication adjustment in the 4 weeks before and during each stimulation;
  4. MDS-UPDRS III score >= 8 points, Hoehn-Yahr score 1-4 points

Exclusion Criteria:

  1. Focal brain injury or severe leukoencephalopathy (Fazekas grade 3 or above) on previous head MRI/CT scans;
  2. Various secondary Parkinson's syndromes (vascular Parkinson's syndrome, drug-induced Parkinson's syndrome, etc.);
  3. Severe craniocerebral trauma, cranial surgery or deep brain stimulation treatment;
  4. Ferromagnetic implants in the body, such as cochlear implants, cardiac pacemakers, etc.;
  5. A history of epilepsy, unexplained loss of consciousness, or taking anticonvulsant drugs for epileptic seizures;
  6. Diagnosed with neuropsychiatric diseases other than Parkinson's disease;
  7. A history of drug abuse or drug use;
  8. Participated in any clinical trial in the past 3 months;
  9. Pregnant/lactating women or subjects (including men) who plan to have children within 6 months;
  10. Other situations that the researchers consider unsuitable for inclusion.

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: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Sham Comparator: Sham group
Other: Temporal Interference Stimulation
Temporal Interference Stimulation
Experimental: GPi group
Other: Temporal Interference Stimulation
Temporal Interference Stimulation
Experimental: STN group
Other: Temporal Interference Stimulation
Temporal Interference Stimulation

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
The part III of MDS-Unified Parkinson's Disease Rating Scale
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Hoehn-Yahr Stage Scale
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation
3-Meter Timed Up and Go Test
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation
10-meter walking test
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation
Upper and lower limb alternation
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation
Clinical Global Impression
Time Frame: Baseline，Immediately after a single stimulation
CGI comprehensively quantifies the severity of a patient's illness and the net benefit of treatment by assessing disease severity (CGI-S), overall improvement (CGI-I), and the balance between efficacy and side effects (Efficacy Index EI).
Baseline，Immediately after a single stimulation
Resting-state electroencephalogram（rsEEG）
Time Frame: Baseline，Immediately after a single stimulation
Baseline，Immediately after a single stimulation
Transcranial Magnetic Stimulation-Electroencephalography（TMS-EEG）
Time Frame: Baseline，Immediately after a single stimulation
Transcranial magnetic stimulation (TMS) combined with electroencephalography (EEG) is a technique used to assess cortical excitability and causal network connectivity.
Baseline，Immediately after a single stimulation

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The First Affiliated Hospital of Anhui Medical University

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 6, 2026

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 16, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 27, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 3, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 7, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 11, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 8, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AHMU-single TIS-PD

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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