Core Oncology Announces Agreement with North American Scientific for Distribution of Pd-103 Brachytherapy Seeds

Santa Barbara CA – October 5, 2007 – Core Oncology today announced that it has entered into a worldwide distribution agreement for the Prospera® Palladium-103 brachytherapy seeds manufactured by North American Scientific, a leading manufacturer of minimally invasive products for the treatment of prostate cancer. Prospera palladium-103 seeds have been commercially available since 1999; with over one million sources implanted clinically. Prospera is supported by the peer reviewed, published dosimetry studies recommended by the American Association of Physicists in Medicine (AAPM).

“Prospera Pd-103 is an excellent, medically accepted product with a longstanding clinical history,” said Travis Gay, President and CEO of Core Oncology. "We choose North American Scientific because its Prospera seed delivers standardized seed geometries in compliance with all industry guidelines, and has excellent dose characteristics. We also believe that converting to North American Scientific’s products significantly enhances the quality of our product line, enabling us to serve a much larger marketplace.”

“We believe that Core Oncology’s decision to standardize their supply with Prospera seeds represents a milestone achievement for our company,” stated John Rush, President and Chief Executive Officer of North American Scientific. “We look forward to working with Core Oncology and supplying their customers with our clinically effective and reliable Prospera brachytherapy seeds.”

About Core Oncology

Founded in 2006 by the existing management of the brachytherapy business owned by Coloplast (formerly Mentor). Core Oncology continues to be a leading manufacturer in the radiation oncology market. As the first company to offer both Iodine and Palladium brachytherapy sources, Core will continue to launch proprietary and highly innovative technologies and services for the delivery of brachytherapy. Core is rapidly solidifying its position as a market mainstay by providing its customers with unparalleled customer care and revolutionary delivery methods.

To learn more about the tools and services Core Oncology provides, visit www.coreoncology.com.

About North American Scientific

North American Scientific is a leader in radiation therapy products and services in the fight against cancer. Its innovative products provide physicians with tools for the treatment of various types of cancers. They include Prospera® brachytherapy seeds and SurTRAK™ needles and strands used primarily in the treatment of prostate cancer. In addition the Company plans to commercialize its ClearPath™ multi-channel catheter breast brachytherapy devices in 2007, which are the only devices approved for both high dose and continuous release, or low dose, radiation treatments. The devices are designed to provide flexible, precise dose conformance and an innovative delivery system that is intended to offer the more advanced form of brachytherapy for the treatment of breast cancer. Please visit www.nasmedical.com for more information.

Contacts:
Travis Gay, CEO, 805-692-2680
Core Oncology, Santa Barbara, CA