Skip to content

Non-invasive cerebellar stimulation for focal dystonia

Focal Dystonia treated using transcranial direct current stimulation compared to sham stimulation on neurophysioloigcal and functional measures

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12612000339853
Enrollment
16
Registered
2012-03-23
Start date
2012-03-20
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The purpose of the study is to assess whether noninvasive stimulation of the cerebellum (base of the brain) can improve the symptoms of primary focal dystonia. Dystonia is a movement disorder that may be expressed, in part, due to dysfunction of motor networks in the brain including the cerebellum. There are few treatments currently available. If stimulating this region improves dystonia then it has potential to be used as a therapeutic intervention in the future.

Interventions

Transcranial Direct Current Stimulation (TDCS) is a painless form of non-invasive brain stimulation. It is proposed to work by polarising brain tissue beneath the stimulating electrodes. Usually applied over the motor cortex, TDCS can either increase (anodal) or suppress (cathodal) excitability depending on electrode configuration. In this study, TDCS will be applied over the cerebellum. The current will be applied at 2mA for 20 minutes in three separate sessions, one week apart. The order of th

Transcranial Direct Current Stimulation (TDCS) is a painless form of non-invasive brain stimulation. It is proposed to work by polarising brain tissue beneath the stimulating electrodes. Usually applied over the motor cortex, TDCS can either increase (anodal) or suppress (cathodal) excitability depending on electrode configuration. In this study, TDCS will be applied over the cerebellum. The current will be applied at 2mA for 20 minutes in three separate sessions, one week apart. The order of the sessions will be randomised. Two sessions will be cathodal, andodal and sham session. The randomisation order and the intervention will be applied by an independent investigator. Investigators who are collecting and analysing data will remaind blinded until the end of the study period.

Sponsors

Lynley Bradnam
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Over 18 years of age, Diagnosis of Primary Focal Dystonia by a neurologist No contraindications to TMS or TDCS (head injury, epilepsy, implanted devices, some medications) No other neurological or musculoskeletal disorder affecting the dystonic region

Exclusion criteria

Condtraindications to TMS or TDCS Musculoskeletal or neurological disorders other than primay focal dystonia affecting the body part Secondary Dystonia (eg after stroke or Parkinsons Disease) Generalised Dystonia

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026