Narcolepsy type 1 (NT1) is a chronic brain disorder caused by selective loss or dysfunction of orexin (hypocretin) neurons in the lateral hypothalamus, for which current pharmacological treatments offer limited efficacy. Temporal interference (TI) stimulation is a recently developed noninvasive neuromodulation technique that enables focal modulation of deep brain structures. In this randomized, double-blind study, we developed a theta-burst patterned TI protocol and evaluated its effects in patients with NT1.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
24
For the active TI stimulation, the current was applied for 40 minutes per session.
For the sham stimulation, a brief 30-second current was delivered at the beginning and at the end of each session, with no current applied in between.
Xijing Hospital
Xi'an, Shaanxi, China
RECRUITINGChange from baseline to week 2 in mean sleep latency from the MWT
Time frame: Baseline, Week 2
The incidence of adverse events and serious adverse events
Time frame: Baseline, 2-week treatment period, 4-week follow-up period
Change from baseline to week 2 in Epworth Sleepiness Scale total score
The Epworth Sleepiness Scale total score ranges from 0 to 24, with higher scores reflecting more severe daytime sleepiness
Time frame: Baseline, Week 2
Change from baseline to week 2 in Narcolepsy Severity Scale score
The Narcolepsy Severity Scale score comprises 15 items assessing the frequency and severity of excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, sleep paralysis, and disrupted nighttime sleep (total score 0-57, higher scores indicating greater severity)
Time frame: Baseline, Week 2
Change from baseline to week 2 in weekly cataplexy frequency
Time frame: Baseline, Week 2
Change from baseline to weeks 1, 2, 3, and 4 following treatment in Epworth Sleepiness Scale total score
The Epworth Sleepiness Scale total score ranges from 0 to 24, with higher scores reflecting more severe daytime sleepiness
Time frame: Weeks 1, 2, 3, and 4 following treatment
Change from baseline to weeks 1, 2, 3, and 4 following treatment in Narcolepsy Severity Scale score
The Narcolepsy Severity Scale score comprises 15 items assessing the frequency and severity of excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, sleep paralysis, and disrupted nighttime sleep (total score 0-57, higher scores indicating greater severity)
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Time frame: Weeks 1, 2, 3 and 4 following treatment
Change from baseline to weeks 1, 2, 3, and 4 following treatment in weekly cataplexy frequency
Time frame: Weeks 1, 2, 3 and 4 following treatment