First Patient Enrolled in Novocure’s EF-33 Phase 2 Pilot Trial of Tumor Treating Fields Delivered Utilizing High-Intensity Transducer Arrays
Tumor Treating Fields survival benefit has shown a positive correlation with electric field intensity. The Optune® system currently delivers Tumor Treating Fields therapy for the treatment of GBM using four transducer arrays with nine ceramic discs each. To increase field intensity, Novocure designed high-intensity arrays with 14 ceramic discs each for use in the EF-33 study. Increasing the surface area of the array is expected to enable delivery of higher field intensities while maintaining the treatment’s safety profile.
“Building upon a foundation of compelling preclinical and clinical evidence, we continue to expand our product development programs to support our mission to extend survival in some of the most aggressive forms of cancer,” said William Doyle, Novocure’s Executive Chairman. “We believe we have a considerable opportunity to improve Tumor Treating Fields delivery systems through product innovation and are very pleased to bring the first high-intensity arrays to the clinic. We look forward to sharing data from these programs in future quarters.”
EF-33 is an open-label, single-arm clinical trial to study if Optune delivered at 200 kHz to the brain using high-intensity arrays in the treatment of recurrent GBM significantly improves the clinical outcomes of patients compared to using standard transducer arrays. The study will enroll 25 patients with a minimum follow-up of six months. Patients will remain on Optune until disease progression. The primary endpoint of EF-33 is progression free survival. Secondary endpoints include overall survival, progression free survival rate at six months, overall survival rate at one year and two years, overall radiological response, and severity and frequency of adverse events. All comparisons will be made against historical control data from Novocure’s EF-11 study. Final data from the study is expected in 2022, at which point Novocure will determine the appropriate regulatory pathway for potential commercial use.
Optune is a noninvasive, antimitotic cancer treatment for GBM. Optune delivers Tumor Treating Fields to the region of the tumor.
Tumor Treating Fields is a cancer therapy that uses electric fields tuned to specific frequencies to disrupt cell division. Tumor Treating Fields does not stimulate or heat tissue and targets dividing cancer cells of a specific size. Tumor Treating Fields causes minimal damage to healthy cells. Mild to moderate skin irritation is the most common side effect reported. Tumor Treating Fields is approved in certain countries for the treatment of adults with GBM and in the U.S. for MPM, two of the most difficult cancer types to treat. The therapy shows promise in multiple solid tumor types – including some of the most aggressive forms of cancer.
Approved Indications (U.S.)
Optune is intended as a treatment for adult patients (22 years of age or older) with histologically-confirmed glioblastoma multiforme (GBM).
Optune with temozolomide is indicated for the treatment of adult patients with newly diagnosed, supratentorial glioblastoma following maximal debulking surgery, and completion of radiation therapy together with concomitant standard of care chemotherapy.
For the treatment of recurrent GBM, Optune is indicated following histologically- or radiologically-confirmed recurrence in the supratentorial region of the brain after receiving chemotherapy. The device is intended to be used as a monotherapy, and is intended as an alternative to standard medical therapy for GBM after surgical and radiation options have been exhausted.
Important Safety Information
Do not use Optune in patients with GBM with an implanted medical device, a skull defect (such as, missing bone with no replacement), or bullet fragments. Use of Optune together with skull defects or bullet fragments has not been tested and may possibly lead to tissue damage or render Optune ineffective.
Use of Optune for GBM together with implanted electronic devices has not been tested and may lead to malfunctioning of the implanted device.
Do not use Optune for GBM in patients known to be sensitive to conductive hydrogels. Skin contact with the gel used with Optune may commonly cause increased redness and itching, and may rarely lead to severe allergic reactions such as shock and respiratory failure.
Warnings and Precautions
Optune can only be prescribed by a healthcare provider that has completed the required certification training provided by Novocure®.
The most common (≥10%) adverse events involving Optune in combination with chemotherapy in patients with GBM were thrombocytopenia, nausea, constipation, vomiting, fatigue, convulsions, and depression.
The most common (≥10%) adverse events related to Optune treatment alone in patients with GBM were medical device site reaction and headache. Other less common adverse reactions were malaise, muscle twitching, and falls related to carrying the device.
If the patient has an underlying serious skin condition on the treated area, evaluate whether this may prevent or temporarily interfere with Optune treatment.
Do not prescribe Optune for patients that are pregnant, you think might be pregnant or are trying to get pregnant, as the safety and effectiveness of Optune in these populations have not been established.
Novocure is a global oncology company working to extend survival in some of the most aggressive forms of cancer through the development and commercialization of its innovative therapy, Tumor Treating Fields. Novocure’s commercialized products are approved in certain countries for the treatment of adult patients with glioblastoma and in the U.S. for the treatment of adult patients with malignant pleural mesothelioma. Novocure has ongoing or completed clinical trials investigating Tumor Treating Fields in brain metastases, non-small cell lung cancer, pancreatic cancer, ovarian cancer, liver cancer and gastric cancer.
Headquartered in Jersey, Novocure has U.S. operations in Portsmouth, New Hampshire, Malvern, Pennsylvania and New York City. Additionally, the company has offices in Germany, Switzerland, Japan and Israel. For additional information about the company, please visit www.novocure.com or follow us at www.twitter.com/novocure.
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