Cefalea migrañosa

on 15 Marzo 2014.

The US Food and Drug Administration (FDA) today allowed marketing of the first device for the preventive treatment of migraine headaches (Cefaly, STX-Med).

It is also the first transcutaneous electrical nerve stimulation (TENS) device specifically authorized for use before the onset of pain, the FDA noted in a statement released today.

"Cefaly provides an alternative to medication for migraine prevention," Christy Foreman, director of the Office of Device Evaluation at the FDA's Center for Devices and Radiological Health, said in the statement. "This may help patients who cannot tolerate current migraine medications for preventing migraines or treating attacks."

The device, which resembles a plastic headband worn across the forehead and over the ears, stimulates the trigeminal nerve using a self-adhesive electrode in the center of the forehead. "The user may feel a tingling or massaging sensation where the electrode is applied," the FDA notes. "Cefaly is indicated for patients 18 years of age and older and should only be used once per day for 20 minutes."

 
Cefaly TENS device

The FDA reviewed the data for Cefaly through the de novo premarket review pathway, a regulatory pathway for generally low- to moderate-risk medical devices that are not substantially equivalent to an already legally marketed device.

Two Studies

The approval was based on data from a clinical study conducted in Belgium involving 67 individuals who experienced more than 2 migraine headache attacks a month and who had not taken any medication to prevent migraines for 3 months before using the device, as well as a patient satisfaction study of 2313 device users in France and Belgium.

The 67-person study, published in Neurology, showed that those who used the device experienced significantly fewer days with migraines per month and took less migraine attack medication than those who used a placebo device. The device did not completely prevent migraines and did not reduce the intensity of migraines that did occur, the FDA notes.

"The patient satisfaction study showed that a little more than 53% of patients were satisfied with Cefaly treatment and willing to buy the device for continued use," the statement adds. "The most commonly reported complaints were dislike of the feeling and not wanting to continue using the device, sleepiness during the treatment session, and headache after the treatment session."

No serious adverse events occurred during either study, the agency notes.

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