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Ryann in a garden while using her Optune Gio.

Ryann is an Optune Gio Patient Ambassador.

GET TO KNOW
OPTUNE GIO

What is Optune Gio?

Optune Gio is a wearable, portable, FDA-approved device. It treats a type of brain cancer called glioblastoma (GBM) in adult patients aged 22 years or older.

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About Optune Gio

This may be the first time you’re hearing about a device that can treat GBM. Here are some things to know:

Optune Gio works by delivering Tumor Treating Fields (TTFields) therapy through adhesive patches that are placed on your head, called transducer arrays

Because Optune Gio is portable, you can receive continuous treatment almost anywhere

Optune Gio is small and lightweight, weighing just 2.7 pounds

With your doctor’s okay, you can use Optune Gio during your daily routine—at work, at social events, and even while traveling

Ashok with Optune Gio transducer arrays on his head while wearing the Optune Gio device backpack.

DID YOU KNOW?

More than 30,000 people have started Optune Gio

Talk to people who can answer your real questions about daily life with Optune Gio. You can talk to a Buddy, join a live webinar, or attend an open house. How do you like to learn?

Learn about the programs

Ashok is an Optune Gio Patient Ambassador.

How long do I have to wear Optune Gio every day?

A large clinical study showed that Optune Gio should be turned on for at least 75% of the time, or 18 hours per day. This will help you get the best response from treatment.


You have the flexibility to decide which times of the day are best for you. Because Optune Gio is a wearable, portable device, you can take it with you wherever you go. 

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Results with Optune Gio

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How Optune Gio works

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Important Safety Information

What is Optune Gio® approved to treat?

Optune Gio is a wearable, portable, FDA-approved device indicated to treat a type of brain cancer called glioblastoma multiforme (GBM) in adult patients 22 years of age or older.

Newly diagnosed GBM

If you have newly diagnosed GBM, Optune Gio is used together with a chemotherapy called temozolomide (TMZ) if:

  • Your cancer is confirmed by your healthcare professional AND
  • You have had surgery to remove as much of the tumor as possible

Recurrent GBM

If your tumor has come back, Optune Gio can be used alone as an alternative to standard medical therapy if:

  • You have tried surgery and radiation and they did not work or are no longer working AND
  • You have tried chemotherapy and your GBM has been confirmed by your healthcare professional

Who should not use Optune Gio?

Optune Gio is not for everyone. Talk to your doctor if you have:

  • An implanted medical device (programmable shunt), skull defect (missing bone with no replacement), or bullet fragment. Optune Gio has not been tested in people with implanted electronic devices, which may cause the devices not to work properly, and Optune Gio has not been tested in people with skull defects or bullet fragments, which may cause Optune Gio not to work properly 
  • A known sensitivity to conductive hydrogels (the gel on the arrays placed on the scalp like the ones used on EKGs). When Optune Gio comes into contact with the skin, it may cause more redness and itching or may rarely cause a life-threatening allergic reaction

Do not use Optune Gio if you are pregnant or are planning to become pregnant. It is not known if Optune Gio is safe or effective during pregnancy.

What should I know before using Optune Gio?

Optune Gio should only be used after receiving training from qualified personnel, such as your doctor, a nurse, or other medical staff who have completed a training course given by Novocure®, the maker of Optune Gio.

  • Do not use any parts that did not come with the Optune Gio Treatment Kit sent to you by Novocure or given to you by your doctor
  • Do not get the device or transducer arrays wet
  • If you have an underlying serious skin condition on the scalp, discuss with your doctor whether this may prevent or temporarily interfere with Optune Gio treatment

What are the possible side effects of Optune Gio?

Most common side effects of Optune Gio when used together with chemotherapy (temozolomide, or TMZ) were low blood platelet count, nausea, constipation, vomiting, tiredness, scalp irritation from the device, headache, seizure, and depression. The most common side effects when using Optune Gio alone were scalp irritation (redness and itchiness) and headache. Other side effects were malaise, muscle twitching, fall and skin ulcers. Talk to your doctor if you have any of these side effects or questions.

 

Please click here for the Optune Gio Instructions For Use (IFU) for complete information regarding the device’s indications, contraindications, warnings, and precautions.

Novocure Websites

This website is intended for people seeking information on Optune Gio.

On this site, patient and healthcare professional videos as well as all images labeled Optune Gio users, caregivers, or healthcare professionals depict actual patients, caregivers, and healthcare professionals.

All other depictions of patients and caregivers are actor portrayals. Patient images reflect the health status of the patients at the time each photo was taken.

 

External links

Optunelua.com
Novocure.com

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MyLink, MyNovocure, Novocure, and Optune Gio are registered trademarks of Novocure GmbH.

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US-OPG-00063 v7.0 December 2025