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Takano G, Kawakita D, Iwata H, Hattori Y, Nakajima K, Tsuzuki Y, Sudo S, Toshito T, Hayashi K, Matoba T, Sawabe M, Minohara K, Iwaki S, Nakai K, Iwase Y, Iwasaki S, Ogino H. Clinical Outcomes of Intensity Modulated Proton Therapy for Salivary Gland Carcinoma: High Local Control and Quality of Life Preservation. Head Neck 2025. [PMID: 40165469 DOI: 10.1002/hed.28149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2024] [Revised: 03/06/2025] [Accepted: 03/19/2025] [Indexed: 04/02/2025] Open
Abstract
BACKGROUND In recent years, particle therapy has shown promise as a local treatment for salivary gland carcinoma (SGC); however, its efficacy and safety remain unclear. This study aimed to evaluate the clinical outcomes of intensity-modulated proton therapy (IMPT) for SGC. METHODS We performed a single-institution retrospective analysis of patients with SGC who underwent IMPT. RESULTS IMPT was performed on 28 SGC patients, of which 18 were for definitive treatment and 10 were for postoperative treatment. The 2-year overall survival (OS), progression-free survival (PFS), and local control (LC) rates for definitive treatment cases were 70.1%, 25.0%, and 82.5%, respectively. The 2-year OS, PFS, and LC rates for postoperative treatment cases were 100%, 80.0%, and 90.0%, respectively. Quality of life scores in the EORTC QLQ-C30 and QLQ-HN35 were preserved for 1 year after treatment. CONCLUSIONS Our study suggests the efficacy and safety of IMPT in SGC patients.
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Affiliation(s)
- Gaku Takano
- Department of Otorhinolaryngology, Nagoya City University West Medical Center, Nagoya, Japan
| | - Daisuke Kawakita
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiromitsu Iwata
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Yukiko Hattori
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Koichiro Nakajima
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Yusuke Tsuzuki
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Shuou Sudo
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Toshiyuki Toshito
- Department of Proton Therapy Physics, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Kensuke Hayashi
- Department of Proton Therapy Technology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Takuma Matoba
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Michi Sawabe
- Department of Otorhinolaryngology, Toyota Kosei Hospital, Toyota, Japan
| | - Kiyoshi Minohara
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Sho Iwaki
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kazuyuki Nakai
- Department of Otorhinolaryngology, Nagoya City University West Medical Center, Nagoya, Japan
| | - Yu Iwase
- Department of Otorhinolaryngology, Nagoya City University West Medical Center, Nagoya, Japan
| | - Shinichi Iwasaki
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroyuki Ogino
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
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