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Efficacy of Repetitive Transcranial Magnetic Stimulation for Improving Depressive Symptoms in Patients With Parkinson's Disease

2026年8月3日 更新者:Ho-Won Lee

Efficacy of Repetitive Transcranial Magnetic Stimulation for Improving Depressive Symptoms in Patients With Parkinson's Disease : A Single-Center, Randomized, Single-Blinded, Sham-Controlled, Parallel-Design, Investigator-Initiated Exploratory Clinical Trial

The purpose of this study is to evaluate the efficacy of repetitive transcranial magnetic stimulation (rTMS) in improving depressive symptoms in patients with Parkinson's Disease (PD).

Participants will be randomly assigned to either an active rTMS group or a sham-control group.

The study aims to establish an optimal treatment protocol using a neuronavigation system and to validate treatment responses through various digital biomarkers such as facial expression analysis and eye-tracking.

調査の概要

状態

招待による登録

条件

介入・治療

研究の種類

介入

入学 (推定)

50

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Buk-gu
      • Daegu、Buk-gu、韓国、41404
        • Kyungpook National University Chilgok Hospital

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Willing and able to provide written informed consent
  • Male or female aged 40 to 90 years
  • Diagnosed with Parkinson's disease with depressive symptoms
  • Hoehn and Yahr stage 1 to 3
  • On stable Parkinson's disease medication for at least 3 months prior to screening, with no planned dose increase during the study period
  • BDI-II score ≥ 14 (mild depression) or ≥ 20 (moderate depression)
  • Able to read and write Korean and capable of independently completing questionnaires

Exclusion Criteria:

  • History of epilepsy
  • Parkinson's disease caused by cerebrovascular disease, CNS infection, intoxication, or traumatic brain injury
  • Diagnosed with Parkinson-plus syndromes (multiple system atrophy, progressive supranuclear palsy, corticobasal degeneration, dementia with Lewy bodies etc.)
  • Clinically significant abnormal laboratory values (AST, ALT, or total bilirubin > 2.5 x ULN)
  • Diagnosed with psychiatric disorders
  • Unable to follow instructions or communicate
  • Pregnant, breastfeeding, or women of childbearing potential
  • Febrile patients
  • Patients with artificial hip joint implants
  • Presence of conductive, ferromagnetic, or magnetically sensitive metal near the head or treatment coil (e.g., cochlear implants, implanted electrodes/stimulators, aneurysm clips or coils)
  • Cardiac disease, especially patients with pacemakers
  • Corrected or uncorrected visual acuity less than 0.5
  • Use of drug infusion pumps or hearing aids
  • Patients with acute illness
  • Patients taking tricyclic antidepressants, neuroleptics, or other medications that may lower seizure threshold
  • History of increased intracranial pressure or head trauma
  • Evidence of external wounds on brain or neck
  • Prominent psychotic symptoms other than depression (high NPI scores for hallucinations, delusions, mania)
  • History of schizophrenia, bipolar disorder, or substance abuse
  • Suicidal ideation (BDI-II item 9 score of 2 or 3)
  • History of or planned deep brain stimulation or stereotactic surgery (pallidotomy, thalamotomy)
  • Any participant deemed ineligible by the investigator, including those with medical conditions that may increase risk or interfere with study evaluation
  • Currently enrolled in another clinical trial or used investigational drug/device within 30 days or 5 half-lives prior to consent

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:ダブル

武器と介入

参加者グループ / アーム
介入・治療
実験的:Real rTMS
Participants receive active repetitive transcranial magnetic stimulation (rTMS) to bilateral primary motor cortex (M1), guided by neuronavigation (BrainEyes). Stimulation is delivered at 10 Hz, 90% of resting motor threshold (RMT), 1,000 pulses per session, once daily for 5 consecutive weekdays. Participants continue their existing Parkinson's disease medication throughout the study.
High-frequency rTMS is delivered to bilateral primary motor cortex (M1) using neuronavigation guidance (BrainEyes). Parameters: 10 Hz, 90% of resting motor threshold (RMT), 50 pulses per train, 55-second inter-train interval, 20 trains per session, 1,000 pulses per session, once daily for 5 consecutive weekdays.
偽コンパレータ:Sham rTMS
Participants receive sham repetitive transcranial magnetic stimulation (rTMS) to bilateral primary motor cortex (M1), guided by neuronavigation (BrainEyes). The coil is tilted 90 degrees perpendicular to the scalp so that no magnetic field is delivered to the cortex. The same click sound and scalp sensation are maintained to preserve participant blinding. The session parameters are identical to the active rTMS group (10 Hz, 1,000 pulses per session, once daily for 5 consecutive weekdays). Participants continue their existing Parkinson's disease medication throughout the study.
Sham rTMS is delivered with the coil tilted 90 degrees perpendicular to the scalp to prevent magnetic field delivery to the cortex. The same click sound and scalp sensation are maintained. Session parameters are identical to active rTMS group.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in Beck Depression Inventory-II (BDI-II) Total Score
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Self-reported measure of depressive symptom severity consisting of 21 items rated on a 4-point Likert scale. Higher scores indicate greater depression severity.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Neuropsychiatric Inventory (NPI) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Caregiver-rated assessment of neuropsychiatric symptoms in Parkinson's disease patients, covering 12 domains including mood, apathy, anxiety, and psychosis. Each domain rated by frequency (1-4) and severity (1-3).
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Parkinson's Disease Questionnaire-39 (PDQ-39) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Disease-specific questionnaire assessing quality of life in Parkinson's disease patients across 8 domains: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. Scores range from 0 to 100; higher scores indicate worse quality of life.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Unified Parkinson's Disease Rating Scale (UPDRS) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Comprehensive clinician-administered scale assessing motor and non-motor symptoms of Parkinson's disease across 6 subscales: non-motor experiences of daily living, motor experiences of daily living, motor examination, motor complications, Hoehn and Yahr staging, and Schwab and England ADL scale. Higher scores indicate greater disease severity.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Parkinson's Disease Sleep Scale (PDSS) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Self-reported scale assessing sleep disturbances in Parkinson's disease patients, consisting of 15 items rated on a 5-point Likert scale (0-4). Covers three domains: nocturnal motor symptoms, PD-specific nocturnal symptoms, and sleep-specific disturbances. Higher scores indicate more frequent sleep disturbances.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Toronto Alexithymia Scale-20 Korean Version (TAS-20-K) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Korean validated version of the Toronto Alexithymia Scale consisting of 20 items rated on a 5-point Likert scale, assessing three factors: difficulty identifying feelings (DIF), difficulty describing feelings (DDF), and externally oriented thinking (EOT). Higher total scores indicate greater alexithymia.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Montreal Cognitive Assessment (MoCA) Scores
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Brief cognitive screening tool assessing multiple cognitive domains including attention, concentration, executive functions, memory, language, visuoconstructional skills, conceptual thinking, calculations, and orientation. Scores range from 0 to 30; higher scores indicate better cognitive function.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Facial Expression Measures on FaceReader Analysis
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Automated facial expression analysis using FaceReader software to quantitatively assess facial action units (AUs) and emotional expression patterns. Participants perform facial emotion recognition and imitation tasks. Measures include response speed, latency, accuracy, and facial expression accuracy based on Action Unit analysis.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Eye Movement Measures on Eye-Tracking
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Quantitative assessment of eye movements using screen-based Tobii Pro Spark. Measures include gaze speed, gaze position, gaze duration, gaze latency, and pupil size during task performance, providing objective evaluation of oculomotor function.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Muscle Activity Measured by Electromyography (EMG)
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Muscle activity is measured using DELSYS Trigno Avanti Sensor and Trigno Quattro Sensor attached to the skin with medical tape. Wireless measurement technology enables free movement during task performance, with real-time data collection via dedicated software.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Postural Stability and Balance Measures on BT4 Balance Assessment
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Quantitative assessment of postural stability using BT4 balance evaluation system, measuring center of pressure (COP) displacement during standing. Assesses limits of stability in anterior, posterior, and lateral directions, and COP movement during Romberg test under eyes-open and eyes-closed conditions.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Body Composition Measured by Bioelectrical Impedance Analysis (InBody)
時間枠:Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Basic physical information is collected using InBody580 with 4-pole 8-point tactile electrode method. Bioelectrical impedance is measured across 3 frequency bands (5kHz, 50kHz, 250kHz) in 5 body segments (right arm, left arm, trunk, right leg, left leg), yielding 15 impedance measurements.
Change from Baseline (T0) at 1 week (T1) and 5 weeks (T2, 1-month follow-up)
Change in Brain Structure and Connectivity on MRI
時間枠:Change from Baseline (T0) at 1 week (T1) after stimulation
Neuroimaging assessment of brain structure and function using MRI with three sequences: T1-weighted and T2-weighted structural imaging, and Diffusion Tensor Imaging (DTI) to assess white matter integrity and structural connectivity. Used to evaluate changes in brain structure before and after rTMS treatment, and to guide neuronavigation-based TMS targeting.
Change from Baseline (T0) at 1 week (T1) after stimulation
Change in Plasma Biomarker Concentrations
時間枠:Change from Baseline (T0) at 1 week (T1) after stimulation
Quantitative measurement of candidate plasma biomarkers including Amyloid beta 40/42, Tau, phosphorylated Tau (p-Tau), and Neurofilament light chain (NfL) using antibody-based quantitative analysis methods (SIMOA, Luminex, or ELISA).
Change from Baseline (T0) at 1 week (T1) after stimulation

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

捜査官

  • 主任研究者:Howon Lee, MD、Kyungpook National University Chilgok Hospital

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年5月4日

一次修了 (推定)

2026年10月23日

研究の完了 (推定)

2026年10月23日

試験登録日

最初に提出

2026年4月28日

QC基準を満たした最初の提出物

2026年4月28日

最初の投稿 (実際)

2026年5月6日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月5日

QC基準を満たした最後の更新が送信されました

2026年8月3日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • KNUCH 2025-08-046-001

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

IPD プランの説明

Individual participant data will not be publicly shared to protect the privacy of the participants. However, de-identified data may be available from the principal investigator upon reasonable request for research purposes, subject to institutional review board approval.

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