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Research on the Comparison between Single Fraction and Multi-Fraction Radiation Therapy for Hemostatic Palliative Radiotherapy

Research Project

Project/Area Number 21K15639
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionThe University of Tokyo

Principal Investigator

Katano Atsuto  東京大学, 医学部附属病院, 講師 (80822410)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords緩和医療 / 放射線治療 / 腫瘍出血 / 止血効果 / 放射線量 / 治療スケジュール / がん / 症状緩和
Outline of Research at the Start

現在の緩和医療には対症的治療はもとより姑息的治療を目的とする放射線治療も包含される。腫瘍出血に対する放射線治療はその代表例の一つであり、一時的には50-90%の高い止血効果が得られることが知られている。しかしながら、その最適な放射線量・治療スケジュールは明らかではない。その最適な治療スケジュールを解明することは緩和医療分野において非常に有用であると考え本研究を発案した。本研究では、後ろ向き研究ならびに前向き研究の両方から止血目的の放射線治療を受けた患者の治療効果を放射線量・治療スケジュールの視点から評価し最適な放射線治療法を解明することを目的とする。

Outline of Final Research Achievements

Radiation therapy plays a crucial role in various scenarios, such as vascular pathologies and tumor bleeding. However, the assessment of hemostatic response and the optimal schedule related to this treatment modality remains insufficient. To address this gap, we conducted an analysis targeting patients who underwent radiation therapy at our institution to elucidate the treatment's effectiveness and risk factors. Specifically, we evaluated the radiation therapy regimen and its effects based on patient data. Furthermore, considering patient background factors such as age, gender, clinical condition, pre-treatment physical status, primary tumor location and histology, presence of metastasis, and transfusion history, we analyzed the radiation therapy schedules influencing hemostatic response.

Academic Significance and Societal Importance of the Research Achievements

がんに伴う症状緩和目的の放射線治療は欠かすことのできない治療オプションである。腫瘍出血に対する緩和照射のそも一つとして有用であるが、国内外ともに放射線治療の分割回数が腫瘍出血に与える影響を定量的に検討した報告は一部の報告に限られている。これを明らかにすることで、患者負担や介護者の負担を軽減することが可能である。また経済毒性の観点からも、不要な医療負担を省き、患者側からも国家経済の面からも有用である。

Report

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

    (28 results)

All 2024 2023 2022 2021

All Journal Article (23 results) (of which Peer Reviewed: 23 results,  Open Access: 23 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Survival Following Palliative Radiotherapy for Head and Neck Squamous Cell Carcinoma: Examining Treatment Indications in Elderly Patients2024

    • Author(s)
      KATANO ATSUTO、MINAMITANI MASANARI、TONGYU GAO、OHIRA SHINGO、YAMASHITA HIDEOMI
    • Journal Title

      Cancer Diagnosis and Prognosis

      Volume: 4 Issue: 1 Pages: 46-50

    • DOI

      10.21873/cdp.10284

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hypofractionated Radiotherapy as a Standalone Treatment Modality for Locally Advanced Type B2 Thymoma in an Octogenarian Patient: 45 Gy in 15 Fractions2024

    • Author(s)
      Katano Atsuto、Kasuga Yuki、Ohira Shingo、Minamitani Masanari、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: 16(1)

    • DOI

      10.7759/cureus.51528

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] National Survey of Radiotherapy Utilization Trends from 2015 to 2019, Based on the National Database of Health Insurance Claims and Specific Health Checkups of Japan2023

    • Author(s)
      Katano A; Minamitani M; Yamashita H; Nakagawa K
    • Journal Title

      JMA Journal

      Volume: 6 Issue: 3 Pages: 342-345

    • DOI

      10.31662/jmaj.2022-0142

    • ISSN
      2433-328X, 2433-3298
    • Year and Date
      2023-07-14
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thirty-day Mortality in Palliative Radiotherapy: A Retrospective Cohort Analysis in a Single Center2023

    • Author(s)
      KATANO ATSUTO、TONGYU GAO、MINAMITANI MASANARI、OHIRA SHINGO、YAMASHITA HIDEOMI
    • Journal Title

      Cancer Diagnosis and Prognosis

      Volume: 3 Issue: 6 Pages: 721-725

    • DOI

      10.21873/cdp.10277

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Radiotherapy in nonagenarian patients: A 20‐year retrospective analysis in a single ternary centre2023

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Journal of Medical Imaging and Radiation Oncology

      Volume: 68 Issue: 1 Pages: 103-109

    • DOI

      10.1111/1754-9485.13599

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-Term Outcomes of Definitive Chemoradiotherapy for Early-Stage Extranodal Natural Killer/T-cell Lymphoma, Nasal Type: A Retrospective Analysis From a Single Center2023

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.34348

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Invisible Skin Marker for External Beam Radiation Therapy: Utilization of Ultraviolet Fluorescent Marker Pens2023

    • Author(s)
      Katano Atsuto、Nozawa Yuki、Imae Toshikazu、Yamashita Hideomi、Nakagawa Keiichi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.34347

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-Term Survival After Repeated Salvage Chemoradiation Therapy for Metastatic Lymph Node Recurrence in Advanced Gastric Cancer: A Case Report2023

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.36649

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intractable Pleural Effusion After Stereotactic Ablative Radiotherapy for Early-Stage Lung Cancer2023

    • Author(s)
      Katano Atsuto、Minamitani Masanari、Nozawa Yuki、Yamashita Hideomi、Nakagawa Keiichi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.36925

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Remarkable remission of a tumor‐stage mycosis fungoides on the scalp by single fraction palliative radiotherapy2022

    • Author(s)
      Katano Atsuto
    • Journal Title

      Clinical Case Reports

      Volume: 10 Issue: 9

    • DOI

      10.1002/ccr3.6333

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Impact of Palliative Radiation Therapy on Patients With Advanced Gastric Cancer: Results of a Retrospective Cohort Study2022

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.32971

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Radiotherapeutic Outcomes for Localized Primary Rectal Mucosa-Associated Lymphoid Tissue Lymphoma: A Consecutive Case Series of Three Patients2022

    • Author(s)
      Katano Atsuto、Takeuchi Kenta、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.22307

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereotactic Body Radiotherapy for a Sacral Metastasis Clarified by Diffusion-Weighted Whole-Body Imaging With Background Body Signal Suppression in a Patient With Castration-Resistant Prostate Cancer2022

    • Author(s)
      Katano Atsuto、Takeuchi Kenta、Yamashita Hideomi、Nakagawa Keiichi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.23047

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Remarkable response to radiation therapy with concurrent chemotherapy in Stewart?Treves syndrome2022

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Journal of Cancer Research and Therapeutics

      Volume: 18 Issue: 3 Pages: 840-840

    • DOI

      10.4103/jcrt.jcrt_215_21

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Brain metastasis: Recent treatment modalities and future?perspectives (Review)2022

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Oncology Letters

      Volume: 23 Issue: 6

    • DOI

      10.3892/ol.2022.13311

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Spontaneous Remission of Recurrent Lymph Node Metastatic Prostate Cancer With Lowering Serum Prostate-Specific Antigen Level2022

    • Author(s)
      Katano Atsuto、Minamitani Masanari、Nakagawa Keiichi、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.25333

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereotactic ablative radiotherapy for the primary site in a patient with nonmetastatic castration-resistant prostate cancer2022

    • Author(s)
      Katano Atsuto
    • Journal Title

      Journal of Radiation and Cancer Research

      Volume: 0 Issue: 2 Pages: 0-0

    • DOI

      10.4103/jrcr.jrcr_13_22

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Usefulness of palliative radiotherapy in reducing the frequency of red blood cell transfusion in patients with malignant tumor bleeding2022

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Journal of Cancer Research and Therapeutics

      Volume: 0 Issue: 3 Pages: 0-0

    • DOI

      10.4103/jcrt.jcrt_2090_21

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Primary urinary bladder marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue2022

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Journal of Cancer Research and Therapeutics

      Volume: 18 Issue: 6 Pages: 1814-1814

    • DOI

      10.4103/jcrt.jcrt_238_21

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Delayed Onset of Pleural Effusion After Thoracic Radiation Therapy for Hodgkin Lymphoma: A Case Report With Over 30-Year Follow-Up2022

    • Author(s)
      Katano Atsuto、Minamitani Masanari、Yamashita Hideomi、Nakagawa Keiichi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.27138

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changing treatment paradigms of radiotherapy for the treatment of lung cancer2022

    • Author(s)
      Katano Atsuto
    • Journal Title

      Journal of Radiation and Cancer Research

      Volume: 0 Issue: 4 Pages: 0-0

    • DOI

      10.4103/jrcr.jrcr_5_22

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A narrative review of clinical manifestations and pathogenetic mechanisms of neuropathy induced by radiation therapy2022

    • Author(s)
      Katano Atsuto
    • Journal Title

      Journal of Radiation and Cancer Research

      Volume: 0 Issue: 3 Pages: 0-0

    • DOI

      10.4103/jrcr.jrcr_57_21

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Efficacy of Hemostatic Radiotherapy for Advanced Malignancies Assessed by World Health Organization Bleeding Status2021

    • Author(s)
      Katano Atsuto、Yamashita Hideomi
    • Journal Title

      Cureus

      Volume: 13(11)

    • DOI

      10.7759/cureus.19939

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 終末期における緩和的放射線治療の実状および30日死亡率に関する後方視的研究2023

    • Author(s)
      片野 厚人, 山下 英臣
    • Organizer
      日本放射線腫瘍学会第36回学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Estimated mortality rate following palliative radiotherapy in the COVID-19 Era: a retrospective single institution analysis2023

    • Author(s)
      Atsuto Katano
    • Organizer
      The 3rd International Congress of the Asian Oncology Society (AOS2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] THIRTY-DAY mortality rate of palliative radiotherapy near the end of life2023

    • Author(s)
      Atsuto Katano
    • Organizer
      The 6th Meeting of the Federation of Asian Organizations for Radiation Oncology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 緩和的放射線治療を用いた腫瘍出血患者の赤血球輸血頻度への影響の解析2022

    • Author(s)
      片野厚人
    • Organizer
      日本放射線腫瘍学会第35回学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 腫瘍出血に対する緩和的放射線照射の有効性2021

    • Author(s)
      片野厚人
    • Organizer
      日本放射線腫瘍学会第34回学術大会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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