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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04435301
Other study ID # Oscillatory stimulation
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 20, 2020
Est. completion date September 20, 2021

Study information

Verified date June 2020
Source First Affiliated Hospital of Zhejiang University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Altered gamma activity has been observed in several neurological and psychiatric disorders, including a reduction in gamma synchronization in patients with disorders of consciousness. Modulation of gamma oscillations with rhythmic stimulation has been used as a possible therapeutic tool. Hence, we try to use acoustic and electric stimulation at gamma frequency to restore brain oscillation and thereby to improve conscious awareness in patients with disorders of consciousness.


Description:

We propose a matched-pair parallel study in patients with disorders of consciousness to investigate whether combined acoustic and trigeminal nerve stimulation can modulate brain oscillations, as measured by electroencephalography (EEG), and whether the brain activity changes are coupled with improvements in consciousness.


Recruitment information / eligibility

Status Completed
Enrollment 73
Est. completion date September 20, 2021
Est. primary completion date September 20, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria: - Clinical diagnosis of disorders of consciousness based on CRS-R - Time post-injury ranging from one to twelve months - No history of acquired brain injury or psychiatric or neurological diseases Exclusion Criteria: - Not medically stable - Any contraindication to electric stimulation - Hearing impairment before brain injury

Study Design


Related Conditions & MeSH terms


Intervention

Device:
DC-Stimulator, NeuroConn, Germany
Neurostimulation device

Locations

Country Name City State
China First Affiliated Hospital,Zhejiang University Hangzhou Zhejiang

Sponsors (3)

Lead Sponsor Collaborator
First Affiliated Hospital of Zhejiang University Maastricht University, Zhejiang Mingzhou Brain Rehabilitation Hospital

Country where clinical trial is conducted

China, 

References & Publications (1)

Fan S, Wu X, Xie M, Li X, Liu C, Su Y, Chen Y, Wu S, Ma C. Trigeminal nerve stimulation successfully awakened an unconscious patient. Brain Stimul. 2019 Mar - Apr;12(2):361-363. doi: 10.1016/j.brs.2018.11.001. Epub 2018 Nov 3. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Coma Recovery Scale-Revised scores Coma Recovery Scale-Revised(CRS-R) scores are the gold standard for consciousness. CRS-R consists of 23 items, grouped into 6 sub-scales: auditory, visual, motor, oromotor, communication and arousal. The lowest score on each sub-scale represents reflexive activity; the highest represents behaviors mediated by cognitive input. The total score ranges between 0 (worst) and 23 (best). Day 1-5, Day 11-15
Primary Neuropsychological assessment EEG indicators could be used to assess the conscious level, including gamma oscillations and event-related potentials(P300). Day 5 and Day 11
Primary Glasgow Outcome Scale-Extended A widely used index for outcomes after brain injury 1 year after stimulation
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