Do you have questions about the device or need help troubleshooting? nCompass can help. Call 1-855-281-9301 (toll-free) to speak with an nCompass technical support representative or email email@example.com.
Browse this list for possible solutions to some common questions.
What to try:
Replace battery with a fully charged battery
If the device still doesn't come on, turn the power off and call technical support at 1-855-281-9301 (toll-free)
Too much force applied to cables
What to try:
Reconnect the cable to its corresponding socket
If the problem is not fixed, press the Tumor Treating Fields (TTFields) button to stop therapy and turn power off
Call technical support at 1-855-281-9301 (toll-free)
What to do:
Press TTFields button to stop therapy
Turn power off
Call technical support at 1-855-281-9301 (toll-free) for further instructions
Loose or disconnected cable
Blocked vents on the sides of the device
Local trapping of heat under a transducer array (from laying on a pillow, for example)
Poor transducer array contact, possibly due to hair growth or sweating
Device power turned on but the TTFields therapy has not been activated
What to try: If the low battery light is on:
Replace the battery as described in the Patient Information and Operation Manual
Turn on treatment
What to try: If the error light is lit but the low battery light is not:
Press the TTFields button to stop the alarm
Turn off the power
Check all plugs to make sure nothing is loose
Check vents on device to make sure they are not blocked
If lying down, move your head
Make sure transducer arrays are well adhered, adding tape if needed
If a few days have passed since you last replaced your transducer arrays, replace the arrays according to the instructions in the Patient Information and Operation Manual
If alarm keeps going, turn off the device and call technical support at 1-855-281-9301 (toll-free)
What to try:
Replace battery with another fully charged battery
If the problem is not fixed, call technical support at 1-855-281-9301 (toll-free)
Browse through printable educational resources.Learn more
Have a question about the device or transducer arrays? nCompass can help.Email us
Optune 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.
If you have newly diagnosed GBM, Optune is used together with a chemotherapy called temozolomide (TMZ) if:
If your tumor has come back, Optune can be used alone as an alternative to standard medical therapy if:
Optune is not for everyone. Talk to your doctor if you have:
Do not use Optune if you are pregnant or are planning to become pregnant. It is not known if Optune is safe or effective during pregnancy.
Optune 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.
Most common side effects of Optune 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 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 to see the Optune Instructions For Use (IFU) for complete information regarding the device's indications, contraindications, warnings, and precautions.
Patient Journey videos on this site and all images labeled as Optune users or caregivers depict actual patients and caregivers. All other depictions of patients, caregivers, and healthcare professionals are actor portrayals.
Optune is intended as a treatment for adult patients (22 years of age or older) with histologically-confirmed glioblastoma multiforme (GBM).