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Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer

  • Authors:
    • Nobutaka Aoyama
    • Yasuhiro Ogawa
    • Miki Yasuoka
    • Masao Takahashi
    • Hitomi Iwasa
    • Kana Miyatake
    • Tomoaki Yamanishi
    • Norihiko Hamada
    • Taiji Tamura
    • Akihito Nishioka
    • Takuji Yamagami
  • View Affiliations / Copyright

    Affiliations: Department of Diagnostic Radiology and Radiation Oncology, Medical School, Kochi University, Kochi 783‑8505, Japan, Hyogo Prefectural Kakogawa Medical Center, Hyogo 675‑8555, Japan
    Copyright: © Aoyama et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 29-34
    |
    Published online on: May 16, 2016
       https://doi.org/10.3892/ol.2016.4589
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Abstract

Linear accelerator-based radiotherapy has little effect on the majority of locally advanced neoplasms. Thus, the novel radiosensitizer Kochi Oxydol Radiation Therapy for Unresectable Carcinomas, Type II (KORTUC II), which contains hydrogen peroxide and sodium hyaluronate, was developed. The effectiveness of KORTUC II for the treatment of chemotherapy‑resistant supraclavicular lymph node metastases has been previously demonstrated. The present study evaluated the safety and effectiveness of KORTUC II in patients with recurrent breast cancer. A total of 20 patients (age range, 39‑84 years) were enrolled in the study. The majority of patients underwent positron emission tomography (PET)‑computed tomography (CT) examinations prior to and 1‑7 months following KORTUC II treatment, and every 6 months thereafter when possible. The radiotherapy regimen was 2.75 Gy/fraction, 5 fractions/week, for 16‑18 fractions, with a total radiation dose of 44.00‑49.50 Gy (X‑ray irradiation), or 4.00 Gy/fraction, 3 fractions/week, for 10‑12 fractions, with a total radiation dose of 40.00‑48.00 Gy (electron beam irradiation). The injection of 3‑6 ml of the KORTUC II agent was initiated at the fifth radiotherapy fraction, and was performed twice/week under ultrasonographic guidance. The therapeutic effects were evaluated by PET‑CT examinations prior and subsequent to KORTUC II treatment, which was observed to be well tolerated with minimal adverse effects. Of the 24 lesions presented by the 20 patients, 18 exhibited complete response, 5 partial response, 0 stable disease and 1 progressive disease. The overall survival rate was 100% at 1 year and 95% at 2 years. The mean duration of follow‑up at the end of June 2014 was 51 months. Based on the results of the PET‑CT studies conducted, KORTUC II treatment demonstrated marked therapeutic effects, with satisfactory treatment outcomes and acceptable adverse events.
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Copy and paste a formatted citation
Spandidos Publications style
Aoyama N, Ogawa Y, Yasuoka M, Takahashi M, Iwasa H, Miyatake K, Yamanishi T, Hamada N, Tamura T, Nishioka A, Nishioka A, et al: Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer. Oncol Lett 12: 29-34, 2016.
APA
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K. ... Yamagami, T. (2016). Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer. Oncology Letters, 12, 29-34. https://doi.org/10.3892/ol.2016.4589
MLA
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K., Yamanishi, T., Hamada, N., Tamura, T., Nishioka, A., Yamagami, T."Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer". Oncology Letters 12.1 (2016): 29-34.
Chicago
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K., Yamanishi, T., Hamada, N., Tamura, T., Nishioka, A., Yamagami, T."Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer". Oncology Letters 12, no. 1 (2016): 29-34. https://doi.org/10.3892/ol.2016.4589
Copy and paste a formatted citation
x
Spandidos Publications style
Aoyama N, Ogawa Y, Yasuoka M, Takahashi M, Iwasa H, Miyatake K, Yamanishi T, Hamada N, Tamura T, Nishioka A, Nishioka A, et al: Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer. Oncol Lett 12: 29-34, 2016.
APA
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K. ... Yamagami, T. (2016). Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer. Oncology Letters, 12, 29-34. https://doi.org/10.3892/ol.2016.4589
MLA
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K., Yamanishi, T., Hamada, N., Tamura, T., Nishioka, A., Yamagami, T."Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer". Oncology Letters 12.1 (2016): 29-34.
Chicago
Aoyama, N., Ogawa, Y., Yasuoka, M., Takahashi, M., Iwasa, H., Miyatake, K., Yamanishi, T., Hamada, N., Tamura, T., Nishioka, A., Yamagami, T."Therapeutic response to a novel enzyme-targeting radiosensitization treatment (Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas) in patients with recurrent breast cancer". Oncology Letters 12, no. 1 (2016): 29-34. https://doi.org/10.3892/ol.2016.4589
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