Optune® (Tumor Treating Fields – TTF)
A unique, FDA-approved therapy for glioblastoma (GBM) using a wearable device that emits low-intensity electrical fields. These alternating fields disrupt cancer cell division, slowing tumor growth and working in concert with standard treatment.
What is Optune?
Optune is a cutting-edge, FDA-approved therapy designed for patients with glioblastoma (GBM)—a fast-growing and aggressive type of brain tumor. Unlike traditional cancer treatments, Optune is a wearable medical device that delivers Tumor Treating Fields (TTFields)—low-intensity, alternating electric fields that disrupt cancer cell division and help slow or stop tumor progression.
This non-invasive therapy works in combination with chemotherapy or after surgery/radiation as part of a comprehensive GBM treatment plan.
How It Works
Wearable Device
The patient wears a lightweight cap-like array on their scalp connected to a portable device. This delivers continuous low-frequency electric fields directly to the tumor site.
Disruption of Cell Division
These alternating fields interfere with the cancer cells' ability to divide and replicate, ultimately leading to slower tumor growth or cell death—without harming healthy brain tissue.
Integrated with Daily Life
Patients typically wear the device for most of the day (about 18 hours), and it can be managed discreetly to fit into everyday activities.
Benefits of Optune
FDA-Approved for GBM
Proven to extend survival when used with standard therapy.
Non-Invasive
No surgery, needles, or radiation exposure involved in TTFields delivery.
Minimal Side Effects
Generally limited to mild skin irritation under the device arrays.
Flexible & Portable
Designed for mobility and independence, enabling patients to continue normal routines.
Common Uses for Optune
Optune is often recommended for:
Newly diagnosed glioblastoma (GBM)
Recurrent glioblastoma
Slows tumor growth
Non-invasive & wearable
Improves survival rates
Learn More About Radiant Cancer Center
With our office based out of Rancho Mirage, our treatment center is conveniently located to serve the entire Coachella Valley.
Every step of your care is monitored and adjusted to ensure the highest accuracy.
Other Services We Offer
Interested in exploring other precision-focused radiation therapies?
Intensity‑Modulated Radiation Therapy (IMRT)
Advanced radiation treatment designed to target tumors with precision while protecting healthy tissue.
Surface-Guided Radiation Therapy (SGRT)
Uses 3D camera systems to monitor patient surface motion in real-time. SGRT enhances accuracy and safety by automatically pausing treatment if movement exceeds designated thresholds.
Image-Guided Radiation Therapy (IGRT)
Utilizes advanced imaging (e.g., CT, MRI, PET) before and during treatment to ensure radiation targets the exact tumor location, reducing margins and improving accuracy.