Inhibitory rTMS in Dystonic Wilson Patients (WILSTIM)
Study of Writing Improvement in Patients With Wilson Disease and Dystonia After One Session of Inhibitory Repetitive Transcranial Magnetic Stimulation
Wilson disease is a genetic disorder resulting in copper accumulation in liver, brain and eye. The neurologic complications include dystonic syndrome, which is a prolonged and excessive muscle activation responsible for abnormal postures. Hand dystonia prevents daily life activities such as writing, which is particularly disabling, since writing is the only mean of communication in these patients with significant slurred speech. Treatment is limited and only partially effective.
Low frequency (<or=1Hz) repetitive transcranial magnetic stimulation (rTMS) has shown inhibiting properties when applied over the cortex. Since dystonia has been correlated to hyperactivation of the neurons of the somatosensory cortex (SSC), we hypothesize that one single 20-minute session of 1 Hz rTMS applied on left SSC will improve writing of the right dystonic hand, assessed immediately at the end of the session.
研究概览
地位
详细说明
This study investigates the handwriting performance of an homogeneous cohort of patients with Wilson disease and right handed dystonia, after one single inhibitory repetitive transcranial magnetic stimulation (rTMS). Fifteen patients with focal right hand dystonia will receive randomly either active or sham rTMS (1 Hz) to the left somatosensory cortex (SSC) in one single 20 minutes session. Handwriting performance will be measured immediately after this unique session (Visual analogic scale of subjective discomfort in writing, DPRE and WCRS scales, pen pressure and pen velocity measured on touchpad), compared to scores obtained 24 hours before the session. Three days later, the patient will receive the other session (sham rTMS or active rTMS) and the same parameters will be evaluated.
This is a single-center, randomized, crossover, prospective, clinical and double-blind study (the rTMS session is performed by the neurophysiologist, but the patient and the neurologist who will perform the handwriting evaluation are blind to the session).
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Ile De France
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Paris、Ile De France、法国、75010
- Hospital Lariboisière
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Wilson disease with focal right hand dystonia
- No modification of medical treatment for 6 months
- No botulinum toxin administration within the past four months
- Right handed
- Focal right hand dystonia
- Cerebral Magnetic Resonance performed the last 6 months with no other lesion than met in Wilson disease
- Over 18
- Insurance policy holder
- Informed consent
Exclusion Criteria:
- Pregnant woman
- Guardianship procedure
- Seizure history
- Other cerebral lesions on cerebral MRI than met in Wilson Disease
- Unable to stay quiet for 30 minutes
- Handwriting impossible
- Contra-indications to repetitive Transcranial Magnetic Stimulation
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：交叉作业
- 屏蔽：三倍
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Active rTMS
Repetitive Transcranial Magnetic stimulation: 1 Hz rTMS, delivered to left somatosensory cortex during rest.
Intervention is delivered during 20 minutes in one single session.
|
Inhibitory 1 Hz rTMS, delivered to left somatosensory cortex during rest.
Intervention is delivered during 20 minutes in one single session.
to verify the absence of infraclinical seizures
Writer's cramp rating scale
handwriting in development and being evaluated by the NRC Wilson
|
|
假比较器：Sham rTMS
Placebo Transcranial Magnetic stimulation delivered to left somatosensory cortex during rest.
Intervention is delivered during 20 minutes in one single session.
|
Inhibitory 1 Hz rTMS, delivered to left somatosensory cortex during rest.
Intervention is delivered during 20 minutes in one single session.
to verify the absence of infraclinical seizures
Writer's cramp rating scale
handwriting in development and being evaluated by the NRC Wilson
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
immediate and significant improvement in writing
大体时间：up to 1 week
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Improvement of handwriting performance immediately after one single 20 minutes session of inhibitory (1 Hz) repetitive transcranial magnetic stimulation over the left somatosensory cortex. quantitative test score of writing WCRS Active or sham stimulation will be randomly assigned to the patient and the other session will be performed 3 days later. |
up to 1 week
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
significant improvement in writing
大体时间：up to 1 week
|
improvement of other quantitative test scores of writing (VAS subjective discomfort writing, DPRE scales and parameters measured on touchpad) after a single session of 1 Hz rTMS inhibitory to the left CSS , compared to the scores achieved in the 24 hours before the session of rTMS. Active or sham stimulation will be randomly assigned to the patient and the other session will be performed 3 days later. |
up to 1 week
|
|
improvement of dystonia on the scale WDRS
大体时间：up to 1 week
|
Assessing the improvement of dystonia on the scale WDRS after a single session of 1 Hz rTMS inhibitory to the left CSS, compared to the scores achieved in the 24 hours before the session of rTMS. Active or sham stimulation will be randomly assigned to the patient and the other session will be performed 3 days later. |
up to 1 week
|
|
correlation between the scores and the other parameters of disease severity
大体时间：up to 1 week
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Assess whether age, disease duration and the presence of cortical atrophy are inversely correlated with the evolution of scores.
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up to 1 week
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合作者和调查者
调查人员
- 研究主任：Nathalie KUBIS, MD, PhD、Physiology Department, Lariboisière Hospital
- 首席研究员：Jean-Marc TROCELLO, MD、Neurology, Lariboisière Hospital
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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