NCT05766059

Brief Summary

Paired associative stimulation (PAS) is a non-invasive brain stimulation protocol, where two stimuli (a peripheral and a cortical one, the latter delivered with transcranial magnetic stimulation - TMS) are repeatedly associated to enhance plasticity in the brain. In the present study, a new cross-modal, visuo-motor PAS protocol - called "mirror-PAS"- will be tested as a possible non-invasive brain stimulation treatment in neurological rehabilitation to promote motor recovery and pain reduction. Participants will perform the standard PAS targeting the motor system and the recently developed mirror-PAS in two separate sessions. The investigators will compare the possible effect of the protocols in terms of neurophysiological and behavioral outcomes to identify the optimal PAS method to enhance plasticity and promote sensory-motor function.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable stroke

Timeline
5mo left

Started Feb 2023

Longer than P75 for not_applicable stroke

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress89%
Feb 2023Sep 2026

Study Start

First participant enrolled

February 8, 2023

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

February 28, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

March 13, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

September 17, 2025

Status Verified

September 1, 2025

Enrollment Period

3.6 years

First QC Date

February 28, 2023

Last Update Submit

September 11, 2025

Conditions

Keywords

Transcranial Magnetic StimulationPaired Associative StimulationStrokeMotor cortexPhantom limb pain

Outcome Measures

Primary Outcomes (2)

  • Change from baseline in motor-evoked potentials (MEP)

    \[Phase 1, only in stroke patients\] peak-to-peak MEP amplitude

    At baseline and after the administration of the PAS protocols

  • Change in functional mapping of phantom limb cortical areas

    \[Phase 2, only in PLP patients\]

    At baseline and after the administration of the PAS protocols

Study Arms (2)

[Phase 1] Stroke patients with upper-limb hemiparesis

EXPERIMENTAL
Device: Transcranial Magnetic Stimulation

[Phase 2] Patients with phantom limb pain (PLP)

EXPERIMENTAL
Device: Transcranial Magnetic Stimulation

Interventions

The standard PAS protocol will be compared with the mirrorPAS protocol.

Also known as: TMS, Paired associative stimulation
[Phase 1] Stroke patients with upper-limb hemiparesis[Phase 2] Patients with phantom limb pain (PLP)

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age from 18 to 85 years
  • single, unilateral, hemispheric stroke (cortical or sub-cortical areas)
  • stroke confirmed by neuroimaging (CT or MRI)
  • stroke at least 4 months before enrollment
  • hemiparesis of the upper limb resulting from stroke or hemianesthesia clinically documented

You may not qualify if:

  • contraindications to TMS (Rossi et all, 2021)
  • other neurological conditions (e.g., Parkinson's Disease, Multiple Sclerosis, ALS)
  • other orthopedic condition that affected the hand (e.g., carpal tunnel syndrome)
  • age from 18 to 90 years
  • amputation of one part of the upper limb at least 2 months before enrollment
  • presence of stable phantom limb pain at least 2 months prior to enrollment
  • contraindications to TMS (Rossi et all, 2021)
  • other neurological, orthopedical or psychiatric conditions

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istituto Auxologico Italiano IRCCS

Milan, Lombardy, 20122, Italy

RECRUITING

Related Publications (8)

  • Guidali G, Roncoroni C, Bolognini N. Paired associative stimulations: Novel tools for interacting with sensory and motor cortical plasticity. Behav Brain Res. 2021 Sep 24;414:113484. doi: 10.1016/j.bbr.2021.113484. Epub 2021 Jul 21.

    PMID: 34302877BACKGROUND
  • Guidali G, Carneiro MIS, Bolognini N. Paired Associative Stimulation drives the emergence of motor resonance. Brain Stimul. 2020 May-Jun;13(3):627-636. doi: 10.1016/j.brs.2020.01.017. Epub 2020 Feb 5.

    PMID: 32289688BACKGROUND
  • Kaur A, Guan Y. Phantom limb pain: A literature review. Chin J Traumatol. 2018 Dec;21(6):366-368. doi: 10.1016/j.cjtee.2018.04.006. Epub 2018 Dec 4.

    PMID: 30583983BACKGROUND
  • Castel-Lacanal E, Marque P, Tardy J, de Boissezon X, Guiraud V, Chollet F, Loubinoux I, Moreau MS. Induction of cortical plastic changes in wrist muscles by paired associative stimulation in the recovery phase of stroke patients. Neurorehabil Neural Repair. 2009 May;23(4):366-72. doi: 10.1177/1545968308322841. Epub 2008 Dec 5.

    PMID: 19060132BACKGROUND
  • Stefan K, Kunesch E, Cohen LG, Benecke R, Classen J. Induction of plasticity in the human motor cortex by paired associative stimulation. Brain. 2000 Mar;123 Pt 3:572-84. doi: 10.1093/brain/123.3.572.

    PMID: 10686179BACKGROUND
  • Hummel FC, Cohen LG. Non-invasive brain stimulation: a new strategy to improve neurorehabilitation after stroke? Lancet Neurol. 2006 Aug;5(8):708-12. doi: 10.1016/S1474-4422(06)70525-7.

    PMID: 16857577BACKGROUND
  • Bolognini N, Russo C, Edwards DJ. The sensory side of post-stroke motor rehabilitation. Restor Neurol Neurosci. 2016 Apr 11;34(4):571-86. doi: 10.3233/RNN-150606.

    PMID: 27080070BACKGROUND
  • Rossi S, Antal A, Bestmann S, Bikson M, Brewer C, Brockmoller J, Carpenter LL, Cincotta M, Chen R, Daskalakis JD, Di Lazzaro V, Fox MD, George MS, Gilbert D, Kimiskidis VK, Koch G, Ilmoniemi RJ, Lefaucheur JP, Leocani L, Lisanby SH, Miniussi C, Padberg F, Pascual-Leone A, Paulus W, Peterchev AV, Quartarone A, Rotenberg A, Rothwell J, Rossini PM, Santarnecchi E, Shafi MM, Siebner HR, Ugawa Y, Wassermann EM, Zangen A, Ziemann U, Hallett M; basis of this article began with a Consensus Statement from the IFCN Workshop on "Present, Future of TMS: Safety, Ethical Guidelines", Siena, October 17-20, 2018, updating through April 2020. Safety and recommendations for TMS use in healthy subjects and patient populations, with updates on training, ethical and regulatory issues: Expert Guidelines. Clin Neurophysiol. 2021 Jan;132(1):269-306. doi: 10.1016/j.clinph.2020.10.003. Epub 2020 Oct 24.

    PMID: 33243615BACKGROUND

MeSH Terms

Conditions

StrokeParesisPhantom Limb

Interventions

Transcranial Magnetic Stimulation

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral ManifestationsPain, PostoperativePostoperative ComplicationsPathologic ProcessesPain

Intervention Hierarchy (Ancestors)

Magnetic Field TherapyTherapeutics

Study Officials

  • Nadia Bolognini, PhD

    Laboratorio di Neuropsicologia, IRCCS Istituto Auxologico Italiano

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Nadia Bolognini, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
SEQUENTIAL
Model Details: In a first phase \[Phase 1\], the study aims to assess the motor and neurophysiological effects of a cross-modal 'mirror-PAS' protocol in stroke patients with upper-limb hemiparesis, compared to the standard excitatory M1-PAS. In a second phase of the study \[Phase 2\], we will test the efficacy of the aforementioned cross-modal PAS in a population of amputated patients affected by phantom limb pain (PLP).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2023

First Posted

March 13, 2023

Study Start

February 8, 2023

Primary Completion (Estimated)

September 30, 2026

Study Completion (Estimated)

September 30, 2026

Last Updated

September 17, 2025

Record last verified: 2025-09

Locations