Novel Non-invasive Brain Stimulation Techniques in Neurological Rehabilitation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Transcranial Magnetic Stimulation.
- Who it may be relevant to
- Registry conditions: Stroke, Hemiparesis, Phantom Limb Pain. Basic parameters: 18 years — 85 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Italy
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Novel Non-invasive Brain Stimulation Techniques in Neurological Rehabilitation: Cross-modal Paired Associative Stimulation (PAS) Protocols to Promote Plastic Reorganization in Stroke and Phantom Limb Pain Patients
Overview
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.
Detailed description
The motor recovery of the upper limb function, particularly of the hand, is challenging in neurological rehabilitation. Transcranial magnetic stimulation (TMS) is a form of non-invasive brain stimulation that can enhance motor recovery, though promoting brain plasticity of the brain.
In this study, researchers will use a TMS protocol called Paired Associative Stimulation (PAS), in which two stimuli (e.g., a cortical stimulus - delivered with TMS - and a peripheral stimulus) are repeatedly associated to promote associative plasticity in the primary motor cortex (M1).
The objective is to explore the clinical efficacy of a newly developed cross-modal PAS protocol -the so-called "mirror-PAS"- as a possible motor rehabilitation treatment in patients with upper limb motor disorders, investigating its neurophysiological and behavioural effects. The innovative aspect of mirror-PAS is to act on a more extended visuomotor network, featured by the functional properties of the mirror neuron system (MNS). Indeed, in the mirror-PAS, a visual stimulus depicting a hand movement is repeatedly paired with a TMS pulse over M1. In the healthy, this protocol was found effective in modulating neurophysiological responses of the motor cortex (i..e, MEPs), hence inducing these effects bypassing the afferent somatosensory pathway exploited by the standard PAS protocols. This may represent a clinical advantage allowing the promotion of motor recovery through the induction of a plastic reorganization in the damaged motor system by gaining access through a potentially spared MNS.
The project's first phase aims to assess the motor and neurophysiological effects of mirror-PAS in stroke patients with upper-limb hemiparesis, compared to the standard excitatory M1-PAS (whose effects are well known in the literature, even if still debated).
In the second phase, we will test the efficacy of the mirror-PAS in a population of amputated patients affected by phantom limb pain (PLP).
Interventions
- Device Transcranial Magnetic Stimulation
The standard PAS protocol will be compared with the mirrorPAS protocol.
Primary outcome measures
- Change from baseline in motor-evoked potentials (MEP) [Time frame: At baseline and after the administration of the PAS protocols]
- Change in functional mapping of phantom limb cortical areas [Time frame: At baseline and after the administration of the PAS protocols]
Eligibility criteria
Inclusion criteria for stroke patients:
- 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
Exclusion criteria for stroke patients:
- 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)
Inclusion criteria for PLP patients:
- 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
Exclusion criteria for PLP patients:
- contraindications to TMS (Rossi et all, 2021)
- other neurological, orthopedical or psychiatric conditions
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Non-randomized
- Model
- Sequential
- Masking
- Open label
- Primary purpose
- Other
Study locations
Italy · 1 center
- Istituto Auxologico Italiano IRCCS — Milan
Publications
- 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 34302877
- 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 32289688
- 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 30583983
- 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 19060132
- 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 10686179
- 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 16857577
- 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 27080070
- 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, Wasse PMID 33243615
Identifiers
NCT: NCT05766059 · 25C212