Outdoors with Optune Gio


Getting outdoors with Optune Gio

With your doctor's permission, walks, hikes, and other outdoor activities are all possible while wearing Optune Gio. But it can be more challenging in warmer weather. Here are some tips from Optune Gio users to help you get outdoors with Optune Gio.

Brian is an Optune Gio user and Patient Ambassador, and Susan is his wife and care partner.

Tips for getting out and about

Wear a hat

Wear a baseball cap, sun hat, or a hood. Make sure the hat covers all the arrays and gives the arrays some breathing room. You can add padding between the arrays and the top of the hat so there’s room for air to circulate and keep the arrays cool.

Find some shade

The shady side of the street or a hike that has more trees can help keep you cool. Or create your own shade by using an umbrella.

Be mindful of the arrays and heat

More frequent array changes may be needed if you’ve performed a physical activity that causes you to sweat more. If sweat causes the arrays to shift, they should be changed.

Optune Gio should not be placed in direct sunlight

If Optune Gio overheats, an alarm will sound.

Staying Active With Optune Gio

See how, with your doctor’s permission, Optune Gio can become part of your exercise routine.

“With permission from my doctor, I’m still able to be active. Generally, I walk, and Optune Gio just goes right with me.”

– Sherry, Optune Gio user and Patient Ambassador

Staying on track
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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.

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

On this site, videos and images identified as Optune Gio users, caregivers, or healthcare professionals depict actual patients, caregivers, and healthcare professionals.

Patient images reflect the health status of the patients at the time each photo or video was taken.


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US-OPG-00063 v2.0 March 2024