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Standardisation of sequential immunotherapy combined with sequential immunotherapy and oligofractionated radiotherapy for recurrence of a small number of abdominal lymph nodes in colorectal cancer.

Research Project

Project/Area Number 20K16741
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionAichi Medical University

Principal Investigator

Ito Makoto  愛知医科大学, 医学部, 講師 (40717899)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsがん / 免疫療法 / 放射線治療 / 寡分割照射 / がん免疫療法 / 大腸がん / 定位放射線治療
Outline of Research at the Start

再発がんに対する放射線治療は、生命予後改善に繋がる可能性があり期待されている。また放射線治療は、がん免疫療法との相性がよいことが示唆されている。大腸がんをはじめとする高頻度マイクロサテライト不安定性(MSI-High)を有する固形癌が再発した際、放射線治療・がん免疫療法はしばしば用いられるものの、それらの果たす役割は明確には定まっていない。本研究は、消化器がん・婦人科がん再発患者を対象に研究を実施する。放射線治療とがん免疫療法併用の安全性、有効性を評価し、その標準化の礎とすることが目的である。

Outline of Final Research Achievements

We aimed to explore the incidence of abscopal effect (AE) when administering radiotherapy to patients with oligoprogressive solid tumours while they are undergoing treatment with immune checkpoint inhibitors (ICIs). In this prospective observational study, oligoprogressive disease was defined as a <20% increase in lesions compared to >2 months before enrolment. We enrolled patients who requested radiotherapy during the ICI rest period. Twelve patients were included in this study. AEs were observed in six (50%) patients. Patients in the AE group had a significantly better 1-year progression-free survival (PFS) rate than those in the non-AE group (p = 0.008). Two patients from the AE group were untreated and progression-free at the last follow-up. No grade 3 or higher toxicities were observed. Patients with oligoprogressive disease may be promising targets with potential for AEs. AEs can lead to improved PFS and, in rare cases, to a certain progression-free period without treatment.

Academic Significance and Societal Importance of the Research Achievements

がん免疫療法は一部の症例に対して予後改善に大きく貢献していますが奏効しない場合も多いです。そのため何らかの方法でがん免疫を活性化させるという戦略が、求められてきました。放射線治療によりその活性化が得られる現象をアブスコパル効果といいますが、その発生率は非常に低く、十分に期待されてきませんでした。今回の研究結果でアブスコパル効果が高率に期待できる対象が明らかとなり、新たな治療戦略を検討するうえでの礎となると考えています。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Solid tumours showing oligoprogression to immune checkpoint inhibitors have the potential for abscopal effects2023

    • Author(s)
      Ito Makoto、Abe Souichiro、Adachi Sou、Oshima Yukihiko、Takeuchi Arisa、Ohashi Wataru、Iwata Takashi、Ogawa Tetsuya、Ota Akiko、Kubota Yasuaki、Okuda Takahito、Suzuki Kojiro
    • Journal Title

      Japanese Journal of Radiology

      Volume: 42 Issue: 4 Pages: 424-434

    • DOI

      10.1007/s11604-023-01516-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Subpleural fibrotic interstitial lung abnormalities are implicated in non-small cell lung cancer radiotherapy outcomes2023

    • Author(s)
      Ito Makoto、Katano Takuma、Okada Hiroaki、Sakuragi Ami、Minami Yoshitaka、Abe Souichiro、Adachi Sou、Oshima Yukihiko、Ohashi Wataru、Kubo Akihito、Fukui Takayuki、Ito Satoru、Suzuki Kojiro
    • Journal Title

      Radiology and Oncology

      Volume: 57 Issue: 2 Pages: 229-238

    • DOI

      10.2478/raon-2023-0018

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereotactic body radiation therapy for prostate cancer: a study comparing 3-year genitourinary toxicity between CyberKnife and volumetric-modulated arc therapy by propensity score analysis.2023

    • Author(s)
      Makoto Ito, Yasuo Yoshioka, Yuuki Takase, Junji Suzuki, Hironori Takahashi, Yoshitaka Minami, Ami Sakuragi, Yukihiko Oshima, Takahito Okuda, Kojiro Suzuki
    • Journal Title

      Radiation Oncology

      Volume: 18(1) Issue: 1 Pages: 39-39

    • DOI

      10.1186/s13014-023-02233-4

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereotactic body radiation therapy for Japanese patients with localized prostate cancer: 2-year results and predictive factors for acute genitourinary toxicities2021

    • Author(s)
      Ito Makoto、Yoshioka Yasuo、Takase Yuuki、Suzuki Junji、Matsunaga Takuma、Takahashi Hironori、Takeuchi Arisa、Adachi Sou、Abe Souichirou、Oshima Yukihiko、Ohtakara Kazuhiro、Suzuki Kojiro、Okuda Takahito
    • Journal Title

      Japanese Journal of Clinical Oncology

      Volume: 51 Issue: 8 Pages: 1253-1260

    • DOI

      10.1093/jjco/hyab094

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of Physician-recorded Toxicities and Patient-reported Outcomes of Five Different Radiotherapy Methods for Prostate Cancer2021

    • Author(s)
      ITO MAKOTO、SASAMURA KAZUMA、TAKASE YUUKI、KOTSUMA TADAYUKI、OSHIMA YUKIHIKO、MINAMI YOSHITAKA、SUZUKI JUNJI、TANAKA EIICHI、OHASHI WATARU、OGUCHI MASAHIKO、OKUDA TAKAHITO、SUZUKI KOJIRO、YOSHIOKA YASUO
    • Journal Title

      Anticancer Research

      Volume: 41 Issue: 5 Pages: 2523-2531

    • DOI

      10.21873/anticanres.15030

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 少数個腹骨盤部リンパ節再発に対する救済照射; 高線量処方による予後改善への期待2020

    • Author(s)
      伊藤誠、浅井あゆみ、阿部壮一郎、森俊恵、竹内亜里紗、大島幸彦、鈴木耕次郎、小出雄太郎、古平毅、奥田隆仁、水松真一郎
    • Journal Title

      臨床放射線

      Volume: 65 Pages: 1099-1105

    • Related Report
      2020 Research-status Report
  • [Presentation] ハイパーサーミアでどう変わる?明日の臨床、研究、そして収益2023

    • Author(s)
      伊藤誠
    • Organizer
      日本放射線腫瘍学会第36回学術大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 口腔癌に対する動注化学放射線療法;IMRTの優位性2023

    • Author(s)
      伊藤誠
    • Organizer
      日本放射線腫瘍学会第36回学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 前立腺癌に対するハイパーサーミア; 寡分割照射時代における実行可能性2023

    • Author(s)
      伊藤誠
    • Organizer
      日本ハイパーサーミア学会第40回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 免疫療法中に緩徐進行を示す固形癌におけるアブスコパル効果2023

    • Author(s)
      伊藤誠
    • Organizer
      日本医学放射線学会第173回中部地方会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Radiation therapy in patients with non-small cell lung cancer and interstitial lung abnormalities2023

    • Author(s)
      伊藤誠
    • Organizer
      ESTRO Annual Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 間質異常影を伴う非小細胞肺癌患者に対する放射線治療2022

    • Author(s)
      伊藤 誠
    • Organizer
      日本放射線腫瘍学会第35回学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 照射の是非に関わる放射線肺臓炎の予測と回避2022

    • Author(s)
      伊藤 誠
    • Organizer
      Radiation Therapy with Respiratory
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 放射線治療併用に重きを置いたハイパーサーミアの初期経験2022

    • Author(s)
      伊藤 誠
    • Organizer
      日本ハイパーサーミア学会第39回大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 総合力でがんと闘う!愛知医大の放射線治療; 画像経過を添えて2022

    • Author(s)
      伊藤 誠
    • Organizer
      第7回たちばな放射線治療講演会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 前立腺癌に対する定位放射線治療;傾向スコアを用いたCyberKnifeとTrueBeamの比較2022

    • Author(s)
      伊藤 誠
    • Organizer
      第35回高精度放射線外部照射部会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 前立腺癌に対する定位放射線治療;2年成績と急性期尿路毒性の予測因子2021

    • Author(s)
      伊藤 誠
    • Organizer
      日本放射線腫瘍学会第34回学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Preliminary results of SBRT for Japanese patients with prostate cancer: prediction of genitourinary toxicities2021

    • Author(s)
      伊藤 誠
    • Organizer
      40th ESTRO Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 前立腺癌に対する定位放射線治療の亜急性期成績2021

    • Author(s)
      伊藤 誠
    • Organizer
      日本医学放射線学会第168回中部地方会
    • Related Report
      2020 Research-status Report
  • [Presentation] 前立腺癌に対する定位放射線治療; 急性期尿路毒性の検討2021

    • Author(s)
      伊藤 誠
    • Organizer
      サイバーナイフ研究会 第14回学術研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] 前立腺癌に対する5種類の放射線治療法;有害事象からみた比較2020

    • Author(s)
      伊藤 誠
    • Organizer
      日本放射線腫瘍学会第33回学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Comparison of physician-recorded toxicities and patient-reported outcomes amo2020

    • Author(s)
      伊藤 誠
    • Organizer
      62nd ASTRO Annual Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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