• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Engineering study for remote production of therapeutic radionuclide

Research Project

Project/Area Number 20K08096
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Nagatsu Kotaro  国立研究開発法人量子科学技術研究開発機構, 量子医科学研究所 先進核医学基盤研究部, グループリーダー (30531529)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords核医学治療 / アルファ線標的アイソトープ治療 / アクチニウム225 / ラジウム226 / ターゲット / 核反応 / 放射性医薬品 / 放射線治療薬
Outline of Research at the Start

標的アイソトープ治療研究において,利用要望が著しく高まっているアルファ線放出核種の一つ,Ac-225(T1/2=10日)の遠隔製造に関するシステム開発,具体的には,Ra-226ターゲットの調製・Ac製造(照射・分離精製)・Ra再生を網羅する,一貫したAc-225製造系の遠隔装置化を計画する。
本研究を通じて,我が国のアルファ線治療研究を支え,また発展させることを目的に,治療用放射性核種の実践的な製造基盤構築を目指す。

Outline of Final Research Achievements

(1)Recovery and isolation of 226Ra from legacy sources, (2)Solidification process of 226Ra as a target material, (3)Development of a 226Ra-dedicated, safety-oriented target station, (4)Separation process of 225Ac from a bulky amount of 226Ra, (5)Establishment of the quality management process for 225Ac and Evaluation of 225Ac labelling potential, and (6)Recycling process for 226Ra were successfully completed in this study.
Because of the fire accident happened in Nov-2021, our cyclotron is no longer available to produce any radionuclides including 225Ac. As a result, a remote handling device developed in this study partially confirmed its performance by dry-runs; however, both objectives of (4) and (5) were satisfactorily achieved. When our cyclotron system reconstructs, the developed device would be put into practice as soon as possible.

Academic Significance and Societal Importance of the Research Achievements

本研究課題の成果は,世界的に極めて深刻な需要過多・供給不足となっている225Acの自施設製造を可能にする基盤技術を確立したことに等しい。同時に,取扱いや社会的な認識に難しさを持つ放射性廃棄物のひとつ226Raを,医学的に有用な225Acの原料として再生し,225Acの持続的国産化に資する成果として,社会的な意義も有している。
我が国では医療用放射性同位元素の安定供給・利用促進のため,原子力委員会が当該放射性物質の国産化を含めた検討を行うためのアクションプランを2022年5月に発出したが,本研究成果こそ,国の期待に正面から応えられる成果と考える。

Report

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

    (24 results)

All 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (16 results) (of which Int'l Joint Research: 6 results,  Invited: 12 results) Patent(Industrial Property Rights) (5 results) (of which Overseas: 1 results)

  • [Journal Article] A Future Vision of Targeted Alpha Therapy in Japan ―Monologue from an Academia2022

    • Author(s)
      NAGATSU Kotaro
    • Journal Title

      Japanese Journal of Health Physics

      Volume: 57 Issue: 3 Pages: 133-139

    • DOI

      10.5453/jhps.57.133

    • ISSN
      0367-6110, 1884-7560
    • Year and Date
      2022-12-29
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Research and Development for Cyclotron Production of 225Ac from 226Ra?The Challenges in a Country Lacking Natural Resources for Medical Applications2022

    • Author(s)
      Higashi Tatsuya、Nagatsu Kotaro、Tsuji Atsushi B、Zhang Ming-Rong
    • Journal Title

      Processes

      Volume: 10 Issue: 6 Pages: 1215-1215

    • DOI

      10.3390/pr10061215

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cyclotron production of 225Ac from an electroplated 226Ra target2021

    • Author(s)
      Nagatsu Kotaro、Suzuki Hisashi、Fukada Masami、Ito Taku、Ichinose Jun、Honda Yoshio、Minegishi Katsuyuki、Higashi Tatsuya、Zhang Ming-Rong
    • Journal Title

      European Journal of Nuclear Medicine and Molecular Imaging

      Volume: 49 Issue: 1 Pages: 279-289

    • DOI

      10.1007/s00259-021-05460-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Cyclotron production of Ac-225 from electroplated Ra-226 target2022

    • Author(s)
      Kotaro Nagatsu
    • Organizer
      IAEA Consultancy meeting on challenges for preparation of 226Ra targets for 225Ac production (EVT2103339)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 日本のRI製造供給の現状と将来 ―アルファ線源(Ac-225)を利用する核医学治療―2022

    • Author(s)
      永津 弘太郎
    • Organizer
      放射線安全フォーラム 第75回放射線防護研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 医療用RI製造の現状と施設へのニーズ2022

    • Author(s)
      永津 弘太郎
    • Organizer
      J-PARC陽子ビーム照射施設計画とユーザーコミュニティ設立
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Production challenge of alpha emitters towards encouraging TAT studies2022

    • Author(s)
      Kotaro Nagatsu
    • Organizer
      IAEA Regional training course on GMP and Radiation safety aspects of radiopharmaceutical production using medical cyclotron
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cyclotron production of Ac-225 from electroplated Ra-226 target2021

    • Author(s)
      Kotaro NAGATSU
    • Organizer
      IAEA Consultancy Meeting on The Status of Alpha Emitter Radiopharmaceuticals
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] アルファ線源(Ac-225)を利用する核医学治療 ―量研機構における取組み―2021

    • Author(s)
      永津弘太郎
    • Organizer
      2021年 第23回 原子力委員会 定例会議
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Ra-226を利用したAc-225の製造に関するQSTの取組み2021

    • Author(s)
      永津弘太郎
    • Organizer
      短寿命RI供給プラットフォーム成果報告会
    • Related Report
      2021 Research-status Report
  • [Presentation] 量研機構 量子医科学研究所におけるRI製造供給2021

    • Author(s)
      永津弘太郎
    • Organizer
      第58回アイソトープ・放射線研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cyclotron production of Ac-225 from electroplated Ra-226 target2021

    • Author(s)
      Kotaro NAGATSU
    • Organizer
      The 65th IAEA General Conference side events [Japan]
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 小型加速器による医療用RIの製造―Tc-99mとAc-225の製造可能性―2021

    • Author(s)
      永津弘太郎
    • Organizer
      JSPS195委員会:医療と放射線
    • Related Report
      2021 Research-status Report
  • [Presentation] Cyclotron and Targetry: Cyclotron production of radioisotopes for nuclear medicine2021

    • Author(s)
      Kotaro NAGATSU
    • Organizer
      The 11th China-Japan-Korea Symposium on Radiopharmaceutical Sciences 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] α核種を用いた放射性薬剤開発2021

    • Author(s)
      永津弘太郎
    • Organizer
      第18回放射線プロセスシンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] α線およびオージェ電子を放出する核種製造の現状2021

    • Author(s)
      永津弘太郎
    • Organizer
      2021年日本アイソトープ協会シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 医学利用が期待されるアルファ線源の製造2021

    • Author(s)
      永津弘太郎
    • Organizer
      放射線科学とその応用 第186委員会 第40回研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Cyclotron-based production of alpha-emitters towards encouraging TAT studies2021

    • Author(s)
      Kotaro NAGATSU
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 短寿命アルファ核種の製造・使用・管理について 製造・供給拠点の現状と将来2021

    • Author(s)
      永津弘太郎
    • Organizer
      第3回日本放射線安全管理学会・日本保健物理学会合同大会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] Ac-225溶液の製造方法およびAc-225溶液を用いた医薬の製造方法(韓国)2022

    • Inventor(s)
      本田芳雄,伊藤拓,市瀬潤,市川浩章,今井智之,永津弘太郎,鈴木寿
    • Industrial Property Rights Holder
      日本メジフィジックス株式会社,量子科学技術研究開発機構
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Acquisition Date
      2023
    • Related Report
      2022 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] Ac-225溶液の製造方法およびAc-225溶液を用いた医薬の製造方法2022

    • Inventor(s)
      本田芳雄,伊藤拓,市瀬潤,市川浩章,今井智之,永津弘太郎,鈴木寿
    • Industrial Property Rights Holder
      日本メジフィジックス株式会社,量子科学技術研究開発機構
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Acquisition Date
      2023
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] Ra-226の回収方法,Ra-226溶液の製造方法及びAc-225溶液の製造方法2021

    • Inventor(s)
      本田芳雄,伊藤拓,市瀬潤,永津弘太郎,鈴木寿
    • Industrial Property Rights Holder
      日本メジフィジックス株式会社・量研
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-002432
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] Ac-225溶液の製造方法,Ac-225溶液を用いた医薬の製造方法2021

    • Inventor(s)
      本田芳雄,伊藤拓,市瀬潤,市川浩章,今井智之,永津弘太郎,鈴木寿
    • Industrial Property Rights Holder
      日本メジフィジックス株式会社・量研
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-002437
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 加速器を用いた放射性核種の製造装置,製造方法,および放射性核種製造用容器2020

    • Inventor(s)
      永津弘太郎,鈴木寿,石津秀剛,松本幹雄
    • Industrial Property Rights Holder
      量子科学技術研究開発機構
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Acquisition Date
      2023
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi