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2 Glossary of Medical Terms
Cancer – abnormal cell division that spreads without control
Chemotherapy – medication used to destroy cancer cells
Clinical trial – a research study that involves people
Contraindications – situations when a treatment should not be used
Glioblastoma Multiforme (GBM) – a type of brain cancer; other medical names for GBM are “glioblastoma”, “grade IV
glioma” or “grade IV astrocytoma”
Local – in one part of the body
MRI scan – a procedure that uses a magnet to create pictures of areas inside the body
Electric Field Generator (the device) – a portable device for delivering TTFields to the brain of patients with recurrent
and newly diagnosed GBM
Optune
®
Treatment Kit – the Electric Field Generator and other parts including batteries, charger, connection cable,
transducer arrays, power supply and carrying case
Radiation – a treatment involving x-rays used to kill tumor cells
Recurrence/Recurrent – when cancer comes back after removal
Steroids – when taken by mouth or IV (through the vein), a medication used to lower swelling around a brain tumor and
help with symptoms related to the brain. When used on the skin, a medication that can reduce inflammation
Systemic – throughout the body
Temozolomide (TMZ) – a type of cancer drug used to treat newly diagnosed GBM
Topical – on the surface of the skin
Transducer Array – adhesive bandages that hold insulated ceramic discs that deliver TTFields to the scalp
TTFields – Tumor Treating Fields: Alternating electric fields, delivered using transducer arrays to the part of the body with
a solid tumor. The fields have been shown to destroy tumor cells
Tumor – an abnormal growth of tissue
Glossary of Medical Terms\\DC - 099263/000001 - 12620961 v1
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