NCT05537597

Brief Summary

Pain is an increasingly recognized non-motor symptom of Parkinson's disease (PD), with significant prevalence and negative impact on the quality of life of patients. Repetitive transcranial magnetic stimulation (rTMS) of the primary motor cortex(M1)has been proposed to provide definite analgesic effect for pain syndromes. However, very few placebo-controlled studies have been performed specifically to relieve pain in PD. What's more, based on behavioral measures alone, it is impossible to reveal the full network dynamics reflecting the impact of TMS. Electroencephalography (EEG), with high temporal resolution, records signal that its origin in electrical neural activity, which makes it suitable for measuring TMS-evoked activation. By recording the TMS induced neuronal activation directly from the cortex, TMS-EEG provides information on the excitability, effective connectivity of cortical area, thus exploring cortical network properties in different functional brain states. In addition, the use of EEG offers great prospects as a tool to select the right patients in order to achieve adequate, long-term pain relief. Besides assessing the efficacy and safety of high-frequency neuronavigated M1-rTMS in PD patients with musculoskeletal pain, the objective of this study additionally aimed to characterize cortical activation behind pain relief. Influence on motor and other non-motor symptoms after rTMS were also investigated.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
62

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 2, 2022

Completed
11 days until next milestone

First Posted

Study publicly available on registry

September 13, 2022

Completed
18 days until next milestone

Study Start

First participant enrolled

October 1, 2022

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

February 17, 2026

Completed
Last Updated

February 17, 2026

Status Verified

January 1, 2026

Enrollment Period

2.2 years

First QC Date

September 2, 2022

Results QC Date

June 17, 2025

Last Update Submit

January 28, 2026

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change From Baseline Over 2 Months (Group by Time Interaction) in Modified KING'S PD Pain Scale Domain 1

    Modified King's PD Pain Scale (MKPPS),the modified version which is more suitable for Chinese people, combined with Ford's pain subtypes basing on the original. It covers five main domains, including 16 items, each item scored by severity (0-3) multiplied by frequency (0-4), resulting in a total possible score range from 0 to 192. Higher scores indicate greater symptom severities and more serious influence.

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

  • Change From Baseline Over 2 Months (Group by Time Interaction) in KING'S PD Pain Scale Domain 1

    KING'S PD Pain Scale (KPPS) Domain 1 focused on musculoskeletal pain, covering one item, which was scored by multiplying severity (from 0 \[no pain\] to 3 \[very severe pain\]) by frequency (from 0 \[never\] to 4 \[all the time\]), yielding sub-scores between 0 and 12. Higher scores indicate greater symptom severity.

    before the first rTMS session (day 1), after rTMS therapy (day8、1month、2months)

  • Change in 0-10 Numeric Rating Scale

    Pain intensity was assessed over the past 24 hours using a 0-10 number, where 0 indicating no pain and 10 indicating maximal pain.

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

Secondary Outcomes (11)

  • Changes in Resting-state EEG Oscillations

    before the first rTMS session (day 1), after rTMS therapy (day8)

  • Changes in Movement Disorder Society-Unified PD Rating Scale Part I

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

  • Change in Movement Disorder Society-Unified PD Rating Scale Part II

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

  • Change in Movement Disorder Society-Unified PD Rating Scale Part III

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

  • Change in Movement Disorder Society-Unified PD Rating Scale Part IV

    before the first rTMS session (baseline), after rTMS therapy (day8、1month、2months)

  • +6 more secondary outcomes

Study Arms (2)

M1-rTMS group

EXPERIMENTAL

active M1-rTMS

Procedure: active M1-rTMS

sham-rTMS group

SHAM COMPARATOR

sham rTMS

Procedure: sham rTMS

Interventions

Magnetic stimulation will be carried out using a MagPro X100 machine with a MCF-B70 figure-of-eight coil (Magventure, Farum). All rTMS sessions will be assisted by a neuronavigation system (TMS Navigator,Localite GmbH), maintaining the M1 target and the orientation of coil stable during stimulation sessions. The M1 target was defined as the "hand knob" region, which corresponds to the motor cortical representation of the hand, regardless of the location of pain. Stimulation paradigm consists of 20 trains of pulses with an intra-train frequency of 20 Hz, resulting in 2000 pulses for a total duration of 20 minutes. The stimulation intensity will be 80% of RMT, defined as the lowest stimulation intensity necessary to induce a visible muscle twitch of the hand contralateral to the stimulated hemisphere. Participants will receive 7 sessions of treatment once a day in the same time continuously for 7 days, and keep antiparkinsonism drugs unchanged throughout the whole study.

M1-rTMS group
sham rTMSPROCEDURE

The sham protocol was similar to the rTMS protocol. Sham stimulations will be performed with a MCF-P-B65 figure-of-eight coil (Magventure) to M1, assisted by a neuronavigation system. The following stimulation parameters will be used: stimulus frequency 20 Hz; stimulus intensity 80 % of RMT; total stimulation pulses 2,000; total stimulation time 20 min. Participants will receive 7 sessions of treatment once a day in the same time continuously for 7 days, and keep antiparkinsonism drugs unchanged throughout the whole study.

sham-rTMS group

Eligibility Criteria

Age40 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Idiopathic PD was diagnosed according to the 2015 Movement Disorder Society (MDS) clinical diagnostic criteria
  • Hoehn and Yahr stages of I to III
  • musculoskeletal pain was detected based on the Ford classification system for pain in PD. Pain duration of at least 3 months, with continuous moderate intensity pain (≥ 3/10 on a 0-10 numerical rating scale) occurring at least three days per week.
  • stable antiparkinsonian therapy for ≥4 weeks

You may not qualify if:

  • Contraindications to rTMS
  • unstable ongoing psychiatric disorder, history of substance abuse (alcohol, drugs)
  • histories of deep brain stimulation surgery
  • Mini-mental State Examination scores ≤24
  • Other pain conditions, such as apparent osteoarthritis, or rheumatoid arthritis depended on laboratory or imaging findings

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, Second Affiliated Hospital of Soochow University

Suzhou, Jiangsu, 215004, China

Location

Related Publications (6)

  • Valkovic P, Minar M, Singliarova H, Harsany J, Hanakova M, Martinkova J, Benetin J. Pain in Parkinson's Disease: A Cross-Sectional Study of Its Prevalence, Types, and Relationship to Depression and Quality of Life. PLoS One. 2015 Aug 26;10(8):e0136541. doi: 10.1371/journal.pone.0136541. eCollection 2015.

    PMID: 26309254BACKGROUND
  • Silverdale MA, Kobylecki C, Kass-Iliyya L, Martinez-Martin P, Lawton M, Cotterill S, Chaudhuri KR, Morris H, Baig F, Williams N, Hubbard L, Hu MT, Grosset DG; UK Parkinson's Pain Study Collaboration. A detailed clinical study of pain in 1957 participants with early/moderate Parkinson's disease. Parkinsonism Relat Disord. 2018 Nov;56:27-32. doi: 10.1016/j.parkreldis.2018.06.001. Epub 2018 Jun 6.

    PMID: 29903584BACKGROUND
  • Chaudhuri KR, Rizos A, Trenkwalder C, Rascol O, Pal S, Martino D, Carroll C, Paviour D, Falup-Pecurariu C, Kessel B, Silverdale M, Todorova A, Sauerbier A, Odin P, Antonini A, Martinez-Martin P; EUROPAR and the IPMDS Non Motor PD Study Group. King's Parkinson's disease pain scale, the first scale for pain in PD: An international validation. Mov Disord. 2015 Oct;30(12):1623-31. doi: 10.1002/mds.26270. Epub 2015 Jun 11.

    PMID: 26096067BACKGROUND
  • Picarelli H, Teixeira MJ, de Andrade DC, Myczkowski ML, Luvisotto TB, Yeng LT, Fonoff ET, Pridmore S, Marcolin MA. Repetitive transcranial magnetic stimulation is efficacious as an add-on to pharmacological therapy in complex regional pain syndrome (CRPS) type I. J Pain. 2010 Nov;11(11):1203-10. doi: 10.1016/j.jpain.2010.02.006. Epub 2010 Apr 28.

    PMID: 20430702BACKGROUND
  • O'Connell NE, Marston L, Spencer S, DeSouza LH, Wand BM. Non-invasive brain stimulation techniques for chronic pain. Cochrane Database Syst Rev. 2018 Apr 13;4(4):CD008208. doi: 10.1002/14651858.CD008208.pub5.

    PMID: 29652088BACKGROUND
  • Lefaucheur JP, Aleman A, Baeken C, Benninger DH, Brunelin J, Di Lazzaro V, Filipovic SR, Grefkes C, Hasan A, Hummel FC, Jaaskelainen SK, Langguth B, Leocani L, Londero A, Nardone R, Nguyen JP, Nyffeler T, Oliveira-Maia AJ, Oliviero A, Padberg F, Palm U, Paulus W, Poulet E, Quartarone A, Rachid F, Rektorova I, Rossi S, Sahlsten H, Schecklmann M, Szekely D, Ziemann U. Evidence-based guidelines on the therapeutic use of repetitive transcranial magnetic stimulation (rTMS): An update (2014-2018). Clin Neurophysiol. 2020 Feb;131(2):474-528. doi: 10.1016/j.clinph.2019.11.002. Epub 2020 Jan 1.

    PMID: 31901449BACKGROUND

MeSH Terms

Conditions

Parkinson DiseaseMusculoskeletal Pain

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesMuscular DiseasesMusculoskeletal DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Department of Neurology
Organization
Second Affiliated Hospital of Soochow University

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Masking Details
The figure-of-eight coils used for active or sham stimulation are similar, including the emitted sound and the scalp tapping sensation.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients will be randomised to receive either active or sham-rTMS according to a 2:1 ratio.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

September 2, 2022

First Posted

September 13, 2022

Study Start

October 1, 2022

Primary Completion

December 1, 2024

Study Completion

December 1, 2024

Last Updated

February 17, 2026

Results First Posted

February 17, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations