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A pilot study for early evaluation and estimation of prognosis of patients with advanced and/or relapsed breast cancer by endocrine and/or CDK4/6 inhibitor combined therapy using estrogen receptor PET

Research Project

Project/Area Number 19K08207
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 InstitutionSaitama Medical University

Principal Investigator

Ichiei Kuji  埼玉医科大学, 医学部, 教授 (90283142)

Co-Investigator(Kenkyū-buntansha) 山根 登茂彦  地方独立行政法人神戸市民病院機構神戸市立医療センター中央市民病院(第1診療部、第2診療部、第3診療部, 中央市民病院, 部長 (20526660)
福島 賢慈  福島県立医科大学, 医学部, 教授 (50408613)
佐伯 俊昭  埼玉医科大学, 医学部, 特任教授 (50201512)
大崎 昭彦  埼玉医科大学, 医学部, 教授 (90291484)
松浦 一生  埼玉医科大学, 医学部, 教授 (90522954)
上田 重人  埼玉医科大学, 医学部, 非常勤講師 (20646947)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsエストロゲン受容体 / ホルモン治療 / CDK4/6阻害剤 / 乳癌多発転移再発 / エストロゲン受容体測定 / 乳癌多発転移 / 治療経過観察 / F-18-fluoroestradiol / エストロゲン受容体PET / 乳癌 / CDK4/6阻害剤併用療法 / 内分泌療法 / PET / F-18-FES-PET / パルボシクリブ
Outline of Research at the Start

サイクリン依存性キナーゼ4および6とエストロゲン受容体(ER)の下流物質であるサイクリンD複合体の活性を選択的に阻害する新しい作用機序を有する薬剤パルボシクリブ(イブランス)がER陽性かつHER2陰性の進行乳癌・再発乳癌の保険適応となった。16alpha-F-18-fluoro-17beta-estradiol (FES)によるエストロゲン受容体PETをER陽性の進行乳癌・再発乳癌の治療によるER発現の変化について検討するために治療前後に行う研究を計画する。内分泌療法剤単剤治療またはパルボシクリブ併用療法におけるER発現の変化を探索的に観察する目的の予備的研究である。

Outline of Final Research Achievements

In the case of recurrence of multiple metastases of breast cancer, it is assumed that the histopathological picture is different from the initially confirmed histopathological picture, and it may also differ for each multimetastatic lesion. In this study, we measured glucose metabolism and estrogen receptor density in each lesion of a diverse variety of multiple metastatic recurrence patients by PET to observe differences in response to hormone treatment and changes in estrogen receptors. As expected, metastases with high expression of estrogen receptors were confirmed to be successful in treatment. Furthermore, it was confirmed that estrogen receptors almost disappeared after treatment. This indicates that the effect of CDK4/6 inhibitors is associated with estrogen receptor expression and that estrogen receptor-positive cancer cells are eliminated by treatment.

Academic Significance and Societal Importance of the Research Achievements

これまでの研究では、治療前後のエストロゲン受容体の変化を直接観察した研究は乏しく、特に、CDK4/6阻害剤併用の効果を直接観察した研究は画期的である。
再発転移症例における受容体の発現は多様で、術前に高発現でも再発では発現のない症例も見られた。ホルモン治療は受容体の発現の乏しい病変では治療効果が不十分であった。治療前に高発現の病変では、治療後に受容体集積の消失も確認できた点が新しい事実である。つまり、治療後の多発再発でも、エストロゲン受容体の発現があれば、CDK4/6阻害剤併用のホルモン治療では、エストロゲン受容体の発現している乳癌細胞には効率的に作用していることが確認されたことになる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Atlas of non-pathological solitary or asymmetrical skeletal muscle uptake in [18F]FDG-PET2022

    • Author(s)
      Yamane Tomohiko、Matsusaka Yohji、Fukushima Kenji、Seto Akira、Matsunari Ichiro、Kuji Ichiei
    • Journal Title

      Japanese Journal of Radiology

      Volume: 40 Issue: 8 Pages: 755-767

    • DOI

      10.1007/s11604-022-01264-3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Generative adversarial network-created brain SPECTs of cerebral ischemia are indistinguishable to scans from real patients2022

    • Author(s)
      Werner Rudolf A.、Higuchi Takahiro、Nose Naoko、Toriumi Fujio、Matsusaka Yohji、Kuji Ichiei、Kazuhiro Koshino
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 18787-18787

    • DOI

      10.1038/s41598-022-23325-3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 骨SPECT/CTにおけるSUV測定の臨床応用2022

    • Author(s)
      久慈一英
    • Journal Title

      Rad Fan

      Volume: 20 Pages: 56-59

    • Related Report
      2022 Research-status Report
  • [Journal Article] Diffuse FDG uptake in the bilateral lungs: hypersensitivity pneumonitis supported by low-dose CT findings2022

    • Author(s)
      Goto S, Matsusaka Y, Yamane T, Hoshino Y, Kuji I.
    • Journal Title

      Asia Ocean J Nucl Med Biol

      Volume: 10 Pages: 43-46

    • Related Report
      2022 Research-status Report
  • [Journal Article] Visual Assessment of 18F-FDG Uptake on PET to Predict Survival Benefit to PD-1 Blockade in Non?Small Cell Lung Cancer2022

    • Author(s)
      Hashimoto Kosuke、Kaira Kyoichi、Yamaguchi Ou、Shiono Ayako、Mouri Atsuto、Miura Yu、Kobayashi Kunihiko、Imai Hisao、Matsusaka Yohji、Kuji Ichiei、Kagamu Hiroshi
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 47 Issue: 2 Pages: 108-116

    • DOI

      10.1097/rlu.0000000000004009

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Diffuse FDG uptake in the bilateral lungs: hypersensitivity pneumonitis supported by low-dose CT findings.2022

    • Author(s)
      S. Goto, Y. Matsusaka, T. Yamane, Y. Hoshino and I. Kuji
    • Journal Title

      Asia Ocean J Nucl Med Biol.

      Volume: 10 Pages: 43-46

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Test?retest repeatability of quantitative bone SPECT/CT2021

    • Author(s)
      Yamane Tomohiko、Fukushima Kenji、Shirotake Suguru、Nishimoto Koshiro、Okabe Takashi、Oyama Masafumi、Seto Akira、Kuji Ichiei
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 35 Issue: 3 Pages: 338-346

    • DOI

      10.1007/s12149-020-01568-2

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 定量骨SPECT/CTによるSUVの造骨性バイオマーカとしての臨床的有用性について2021

    • Author(s)
      久慈 一英, 山根 登茂彦, 福島 賢慈, 瀬戸 陽.
    • Journal Title

      核医学技術

      Volume: 41 Pages: 65-67

    • Related Report
      2021 Research-status Report
  • [Presentation] A pilot study of the use of positron emission tomography to evaluate early oestrogen receptor changes in patients with advanced and/or relapsed breast cancer administered endocrine therapy and CDK4/6 inhibitor combination therapy2023

    • Author(s)
      I. Kuji, K. Matsuura, A. Osaki, T. Yamane, H. Ishiguro, T. Saeki
    • Organizer
      EANM2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A pilot study of the use of positron emission tomography to evaluate early oestrogen receptor changes in patients with advanced and/or relapsed breast cancer administered endocrine therapy and CDK4/6 inhibitor combination therapy2023

    • Author(s)
      I. Kuji, K. Matsuura, A. Osaki, T. Yamane, H. Ishiguro, T. Saeki
    • Organizer
      EANM23
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] xSPECTを臨床にどう生かすか?:現状と今後の展望について2020

    • Author(s)
      久慈一英
    • Organizer
      第60回日本核医学会学術総会ランチョンセミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] SUVの定量性と臨床利用~SPECTとPETにて~2020

    • Author(s)
      久慈一英、山根登茂彦、福島賢慈、瀬戸 陽
    • Organizer
      第60回日本核医学会学術総会・第40回日本核医学技術学会総会学術大会合同シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2019-04-18   Modified: 2025-01-30  

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