What should you know about TTFields for glioblastoma?

TTFields, also called tumour treating fields, uses a device connected to adhesive arrays placed on a shaved scalp. The arrays produce alternating electric fields in the area where glioblastoma cells are being treated. The fields are intended to interfere with the division of cancer cells. They do not replace the clinical assessment, scans, surgery, radiotherapy or medicines that may be recommended for glioblastoma.

Suitability depends on the tumour, treatment stage, general health, scalp condition and ability to manage the device. A neuro-oncology team explains how the arrays are positioned, how the device is carried and how skin is checked. Scalp irritation is a practical concern, so skin care and timely reporting of soreness matter.

Ask the treating team whether TTFields has a role in your particular plan and how it would fit with brain tumour surgery, radiotherapy or chemotherapy. Request a demonstration of the equipment, including array changes, cleaning, charging and what to do if an alarm occurs. Discuss hair removal, scalp sensitivity, daily activities, sleep and travel before starting.

Keep a simple record of skin changes, headaches, seizures, device interruptions and questions for the next appointment. Do not alter the treatment schedule or place products under the arrays unless the team advises it. More information about glioblastoma and related treatments can help you prepare for a shared decision.

Contact the oncology team promptly for persistent redness, blistering, open skin, increasing pain or a rash beneath an array. Seek urgent medical help for a new or prolonged seizure, sudden weakness, difficulty speaking, severe confusion, repeated vomiting, a rapidly worsening headache or unusual drowsiness. These symptoms need assessment whether or not the device is being used.

Would TTFields add anything useful to my current glioblastoma plan? Which area of my scalp will the arrays cover, and how will we protect the skin? How will you monitor the tumour and decide whether to continue? Who should I call if the device stops, an array will not stick, or symptoms change?