Analgesic Effect of rTMS in Vasculitic Neuropathy
Analgesic Effect of Repetitive Transcranial Magnetic Stimulation in Painful Vasculitic Neuropathy
Sponsors |
Lead Sponsor: Jagiellonian University |
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Source | Jagiellonian University |
Brief Summary | Vasculitic neuropathy (VN) results from inflammation and destruction of the walls of predominantly small vessels with subsequent ischemic damage of peripheral nerves. VN is painful in vast majority of patients and the pain is intractable with pharmacotherapy in about 40% of cases. Repetitive Transcranial Magnetic Stimulation (rTMS) is a noninvasive method of modulation of brain plasticity and is regarded as one of alternative methods to alleviate pain associated with various kind of neuropathies. The purpose of this study is to compare the effectiveness of analgesic effect of rTMS in vasculitic neuropathy with sham stimulation. |
Detailed Description | Vasculitic neuropathies (VN) are a group of disorders resulting from inflammation of predominantly small vessels with destruction of their walls and subsequent ischemic damage of peripheral nerves. Neural damage may or may not coexist with the damage of other organs. Examples of conditions associated with VN include diabetes, microscopic polyangiitis, eosinophilic granulomatosis with polyangiitis (Churg-Strauss), granulomatosis with polyangiitis (Wegener's), rheumatoid arthritis, systemic lupus erythematosus and others. VN is painful in about 80% of patients of whom 40% suffer from the pain intractable with pharmacological therapy. Repetitive Transcranial Magnetic Stimulation (rTMS) is a noninvasive method of modulation of brain plasticity. In this method, series of magnetic stimuli are delivered to the cerebral cortex, where they turn to electric current and depolarize repetitively the targeted neurons. If the stimulation is repeated during subsequent days it is capable to modify the activity of targeted cortical area for weeks or even months and by this way to achieve therapeutic effect. rTMS is widely regarded as one of alternative methods to alleviate pain associated with various kind of neuropathies. The purpose of this study is to compare the effectiveness of analgesic effect of rTMS in vasculitic neuropathy with sham stimulation. |
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Overall Status | Recruiting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Start Date | 2021-01-25 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Completion Date | 2023-06-01 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Primary Completion Date | 2022-12-01 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Phase | N/A | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Study Type | Interventional | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Primary Outcome |
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Secondary Outcome |
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Enrollment | 24 |
Condition | |
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Intervention |
Intervention Type: Device Intervention Name: Active repetitive transcranial magnetic stimulation Description: High frequency rTMS over the primary motor area to induce the long term potentiation of primary motor areas for the muscles of upper extremity. Arm Group Label: Active repetitive transcranial magnetic stimulation Intervention Type: Device Intervention Name: Sham repetitive transcranial magnetic stimulation Description: Sham stimulation to mimic the high frequency rTMS over the primary motor area. Arm Group Label: Sham repetitive transcranial magnetic stimulation |
Eligibility |
Criteria:
Inclusion Criteria: - Diagnosis of vasculitic neuropathy - Neuropathic pain of constant severity since not less than a month and requiring use of analgesics more than once a week - Score of 30 milimeter or more on the 100 milimeter visual analog scale of pain intensity at inclusion Exclusion Criteria: - Severe depression - Personality disorders and other psychiatric conditions, which could disturb the participation in the study - Cognitive deficits, which could disturb the participation in the study - Contraindications for rTMS as listed by the Guidelines of the International Federation of Clinical Neurophysiology (Rossi et al. 2009) i.e. seizure in the past, epilepsy, presence of magnetic material in the reach of magnetic field, pregnancy, likelihood to get pregnant, intracranial electrodes, cardiac pacemaker or intracardiac lines, frequent syncopes Gender: All Minimum Age: 18 Years Maximum Age: N/A Healthy Volunteers: No |
Overall Official |
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Overall Contact |
Last Name: Jakub M Antczak, MD Phone: +48 795 421 153 Email: [email protected] |
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Location |
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Location Countries |
Poland |
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Verification Date |
2022-03-01 |
Responsible Party |
Type: Principal Investigator Investigator Affiliation: Jagiellonian University Investigator Full Name: Jakub Antczak Investigator Title: Principal Investigator |
Keywords | |
Has Expanded Access | No |
Condition Browse | |
Number Of Arms | 2 |
Arm Group |
Label: Active repetitive transcranial magnetic stimulation Type: Experimental Description: 10 hertz (Hz) rTMS will be administered over the primary motor area. Therapy will include 5 daily sessions (on consecutive week days). In every sessions 1500 magnetic pulses of 90% of the resting motor threshold intensity will be elicited. Label: Sham repetitive transcranial magnetic stimulation Type: Sham Comparator Description: Sham stimulation will mimic the active one except that the stimulating coil will be held perpendicularly to the scalp, which assures similar impression as the active stimulation but prevents that significant magnetic field will reach brain tissue. |
Patient Data | Yes |
Study Design Info |
Allocation: Randomized Intervention Model: Crossover Assignment Intervention Model Description: Patients will be randomly assigned to active and then sham stimulation or to sham and then active stimulation. Primary Purpose: Treatment Masking: Triple (Participant, Investigator, Outcomes Assessor) Masking Description: Sham stimulation will be provided by holding the stimulating coil perpendicularly to the scalp, which assures similar impression as during active stimulation but prevents significant magnetic field to reach the brain tissue. |
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