Therapeutic response to a new enzyme-targeting radiosensitization treatment (KORTUC-SC) for patients with chemotherapy-resistant supraclavicular lymph node metastasis
Journal Title: Journal of Cancer Research & Therapy - Year 2013, Vol 1, Issue 9
Abstract
We have developed a new radiosensitizer containing hydrogen peroxide and sodium hyaluronate, part of a method we call “KORTUC II”. This study aimed to evaluate the safety and effectiveness of KORTUC II specifically for patients with chemotherapy-resistant supraclavicular lymph node metastasis (KORTUC-SC). Twelve patients were enrolled after providing fully informed written consent. Most of the patients underwent PET-CT examinations prior to and 3-8 months after KORTUC-SC, and every 6 months thereafter if possible. The patients’ age ranged from 58 to 77. The radiotherapy regimen was 4 Gy/ fraction, 3 fractions/ week, for 4 weeks, and the total dose was 48 Gy. The injection of 3 to 6 mL of the agent was started from the fifth radiotherapy fraction, and it was performed twice a week under ultrasonographic guidance. Therapeutic effects were evaluated by PET-CT examinations performed before and after KORTUC-SC treatment. The patients were well tolerated with minimal adverse effects. Of the 12 patients, 4, 5, 2 and 1 patient showed complete response, partial response, stable disease and progressive disease, respectively. The overall survival rate was 83% at 1 year and 75% at 2 years. The mean duration of follow-up at the end of February 2011 was 35.1 months. Based on the PET-CT studies, remarkable therapeutic effects of the KORTUC II treatment were clearly identified. The treatment outcomes were satisfactory. Well-designed, prospective, randomized, clinical trials are needed to confirm the therapeutic efficacy of KORTUC-SC.
Authors and Affiliations
Aoyama N, Ogawa Y, Kubota K, Ohgi K, Kataoka Y, Miyatake K, Tadokoro M, Yamanishi T, Hamada N, Ohnishi T, Kariya S, Tamura T, Nogami M, Nishioka A, Onogawa M, Miyahara M
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