Brain tumour therapy company GT Medical Technologies and Theragenics Corporation have teamed up to expand physician access to Cesium-131 seeds for brachytherapy, a type of internal radiotherapy.
Under the agreement, Theragenics will become the exclusive distributor of Cesium-131 brachytherapy seeds and carriers used for a variety of non-brain cancer-related treatments, including prostate cancer.
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Cesium-131 is a common isotope used with low dose rate (LDR) brachytherapy, a radiation treatment where tiny radioactive seeds are implanted directly into or adjacent to a tumour. This approach delivers a high dose of radiation to cancer cells while minimising damage to surrounding healthy tissues.
GT Medical Technologies inherited the radioactive Cesium-131 seeds when it acquired Perspective Therapeutics subsidiary Isoray Medical in December 2023. The company will continue to manufacture Cesium-131 while moving its focus to expanding the adoption of the company’s US Food and Drug Administration (FDA)-approved GammaTile therapy.
The GammaTile therapy device, which features a bioresorbable collagen tile with embedded Cesium-131 seeds, is intended for treating patients with operable brain tumours to eliminate residual tumour cells. It is implanted in the head after surgery to delay regrowth by immediately delivering radiation to the site from which the tumour was removed.
GT Medical’s CEO Per Langoe said: “We are very pleased to align with Theragenics, a global brachytherapy leader, to propel the field of cancer care forward. This partnership ensures continued access to Cesium-131 for clinicians and patients, addressing critical healthcare needs.”
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