Percutaneous radiofrequency ablation for patients with malignant lung tumors: a phase II prospective multicenter study (JIVROSG-0702)

Hideo Gobara, Yasuaki Arai, Takeshi Kobayashi, Koichiro Yamakado, Yoshitaka Inaba, Yoshihisa Kodama, Takuji Yamagami, Miyuki Sone, Hirokazu Watanabe, Yoshihiro Okumura, Takayoshi Shinya, Hiroaki Kurihara, Susumu Kanazawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Purpose: This prospective multicenter study aimed to evaluate the efficacy and safety of percutaneous radiofrequency (RF) ablation for lung cancer. Materials and methods: From May 2008 to April 2012, 33 patients (26 men, 7 women; mean age 70.5 years) were enrolled. RF ablation was performed using an internally cooled or expandable multitined electrode. The primary endpoint was complete response (CR) determined using 18F fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) performed 6 months after RF ablation. The secondary endpoint was the incidence and grade of adverse events (AEs) evaluated using the Common Toxicity Criteria for Adverse Events, version 3.0. Results: All patients underwent RF ablation and had efficacy analyses evaluated; however, FDG-PET/CT images before RF ablation were not available for two patients. The CR rate was 68 % (21 of 31 patients). One patient had a grade 5 AE unrelated to RF ablation. Grade ≥3 AEs occurred in 12 % of patients. During the follow-up period (median 37 months; range 1–55 months), five patients developed local tumor progression and nine (29 %) died. Overall survival at 1, 2, and 3 years was 97, 82, and 74 %, respectively. Conclusion: Percutaneous RF ablation is a safe, feasible, and effective treatment for small malignant lung tumors.

Original languageEnglish
Pages (from-to)556-563
Number of pages8
JournalJapanese Journal of Radiology
Issue number8
Publication statusPublished - Aug 1 2016


  • Clinical trial
  • Lung cancer
  • Multicenter
  • Prospective
  • Radiofrequency ablation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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