NeuroSigma ADHD Device Cleared

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FDA has granted a de novo clearance to NeuroSigma for its prescription-only Monarch external Trigeminal Nerve Stimulation (eTNS) System, the first medical device to treat attention deficit hyperactivity disorder (ADHD). The device is indicated for patients aged seven to12 years old who are not currently taking prescription ADHD medications.

 

The System is intended to be used in the home under the supervision of a caregiver. “The cell-phone sized device generates a low-level electrical pulse and connects via a wire to a small patch that adheres to a patient's forehead, just above the eyebrows, and should feel like a tingling sensation on the skin,” an FDA release says. “The system delivers the low-level electrical stimulation to the branches of the trigeminal nerve, which sends therapeutic signals to the parts of the brain thought to be involved in ADHD. While the exact mechanism of eTNS is not yet known, neuroimaging studies have shown that eTNS increases activity in the brain regions that are known to be important in regulating attention, emotion and behavior.”

 

The device’s efficacy was shown in a clinical trial that compared eTNS to a placebo device. A total of 62 children with moderate to severe ADHD were enrolled in the trial, which showed that subjects using the active device had statistically significant improvement in their ADHD symptoms compared with the placebo group. The most common side effects observed with eTNS use are: drowsiness, an increase in appetite, trouble sleeping, teeth clenching, headache and fatigue.

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