Initial clinical outcomes of proton beam radiotherapy for hepatocellular carcinoma

• Published in: Radiation oncology journal Vol. 36; no. 1; pp. 25 - 34
• Main Authors: Yu, Jeong Il, Yoo, Gyu Sang, Cho, Sungkoo, Jung, Sang Hoon, Han, Youngyih, Park, Seyjoon, Lee, Boram, Kang, Wonseok, Sinn, Dong Hyun, Paik, Yong-Han, Gwak, Geum-Youn, Choi, Moon Seok, Lee, Joon Hyeok, Koh, Kwang Cheol, Paik, Seung Woon, Park, Hee Chul
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Society for Radiation Oncology 01.03.2018; 대한방사선종양학회
• Subjects: Original; 방사선과학; Response; Proton; Hepatocellular carcinoma; Radiotherapy; Toxicity
• ISSN: 2234-1900; 2234-3156; 2234-3164
• DOI: 10.3857/roj.2017.00409

This study aimed to evaluate the initial outcomes of proton beam therapy (PBT) for hepatocellular carcinoma (HCC) in terms of tumor response and safety. HCC patients who were not indicated for standard curative local modalities and who were treated with PBT at Samsung Medical Center from January 2016 to February 2017 were enrolled. Toxicity was scored using the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Tumor response was evaluated using modified Response Evaluation Criteria in Solid Tumors (mRECIST). A total of 101 HCC patients treated with PBT were included. Patients were treated with an equivalent dose of 62-92 GyE10. Liver function status was not significantly affected after PBT. Greater than 80% of patients had Child-Pugh class A and albumin-bilirubin (ALBI) grade 1 up to 3-months after PBT. Of 78 patients followed for three months after PBT, infield complete and partial responses were achieved in 54 (69.2%) and 14 (17.9%) patients, respectively. PBT treatment of HCC patients showed a favorable infield complete response rate of 69.2% with acceptable acute toxicity. An additional follow-up study of these patients will be conducted.