Effect of multimodal-treatment for oropharyngeal squamous cell carcinoma with or without human papilloma virus infection―Report from Japan cooperative study group for basic research in head and neck cancer

Masato Fujii, Ichiro Ota, Tadashi Sugasawa, Takatsugu Mizumachi, Keisuke Mizuta, Yuichiro Kuratomi, Naoki Otsuki, Shinsuke Suzuki, Katsunari Yane, Yuki Saito, Hisayuki Kato, Shigeru Hirano, Kenji Okami, Yuzo Shimode, Takenori Ogawa, Ryuji Yasumatsu, Akira Nagasawa, Hiroshi Hoshikawa

Research output: Contribution to journalArticle

Abstract

The recent increase in the incidence of oropharyngeal cancer in the USA and northern Europe has been attributed to human papillomavirus (HPV) infection. Because the carcinogenic mechanism of HPV related oropharyngeal cancer (OPC) is different from that of other OPC, biological malignancy and treatment effects are considered to be different between the two groups. We performed a prospective study in the Japanese cooperative study group for basic research in head and neck cancer (JCSG-BRHNC) to compare the effects of first-line treatment between HPV positive or negative stage III and IV OPC. From May 2014 to March 2016, 92 patients were enrolled by 18 institutions in the whole country. Sixty-five patients (71%) were HPV-positive in the PCR. We examined the effects of primary treatment in a prognosis investigation conducted one year after registration. The results showed that 60 of the 65 HPV-positive cases successfully achieved complete response(CR), and the primary treatment success ratio was 92.3% as the ratio of CR cases without recurrence or metastasis within one year. In comparison, 15 cases (57.7 %) of 26 HPV negative patients successfully achieved CR. The effect of chemoradiotherapy was high, and even cetuximab combination radiotherapy(BRT) showed enough effects for HPV-positive cases. Also, induction chemotherapy (IC) was successful and all cases achieved CR in RT singularity cases. These results will provide a useful reference when examining clinical trials that lower the intensity of treatment for HPV-positive cases.

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalJapanese Journal of Head and Neck Cancer
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 1 2018

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Otorhinolaryngology
  • Oncology

Cite this