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Development of novel dry powder inhalers with high performance which disintegrate and well in the lungs

Research Project

Project/Area Number 15K07904
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical pharmacy
Research InstitutionMeijo University

Principal Investigator

Okamoto Hirokazu  名城大学, 薬学部, 教授 (00308941)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords吸入粉末剤 / 多孔性微粒子 / 粒度分布 / 空気力学的質量中位径 / 耐吸湿性 / 崩壊性 / 当てはめ計算 / 噴霧急速凍結乾燥法 / 吸湿性 / 分散性
Outline of Final Research Achievements

Inhalation therapy is widely applied to treat pulmonary disorders such as asthma and COPD. However, low availability of an inhaled formulation at deep lungs is a problem to be solved. I designed several prototype porous formulations with high flowability, dispersibility, and antihygroscopicity, which are broken into tiny segments by inhalation, delivered deep into the lungs, and swell up for a short term to remain on the surface of lung epithelium at a high extent. It was suggested that spray-freeze-drying aqueous solutions composed of excipients contributing to antihygroscopicity, disintegrability, and hygroscopicity at proper compositions gave aimed powders. The present study is unique and shows a new strategy to develop dry powder inhalers with high performance.

Academic Significance and Societal Importance of the Research Achievements

耐吸湿性に優れ吸入時に崩壊・膨潤する吸入粉末剤の概念はこれまでになく、学術的に吸入粉末剤の新たな方向性を示すものである。吸入療法は患者の吸入手技による吸入効率のばらつきが大きい。吸入効率が高い吸入粉末剤は吸入療法の個人差を抑えることができ、社会的に貢献できる。吸入療法は今後遺伝子や抗体医薬など高額な医薬品に拡大され可能性が高い。最深部送達率が高い吸入粉末剤を実用化することで、医療経済的にも貢献できる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2019 2018 2017 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Development of Spray-Freeze-Dried Powders for Inhalation with High Inhalation Performance and Antihygroscopic Property2016

    • Author(s)
      Hiroko Otake, Tomoyuki Okuda, and Hirokazu Okamoto
    • Journal Title

      Chem. Pharm. Bull.

      Volume: 64 Pages: 239-245

    • NAID

      130005131586

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhalable Spray-Freeze-Dried Powder with L-Leucine that Delivers Particles Independent of Inspiratory Flow Pattern and Inhalation Device2016

    • Author(s)
      Hiroko Otake, Tomoyuki Okuda, Daiki Hira, Haruyoshi Kojima, Yasuhiro Shimada, and Hirozazu Okamoto
    • Journal Title

      Pharm. Res.

      Volume: 33 Issue: 4 Pages: 922-931

    • DOI

      10.1007/s11095-015-1838-4

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 吸入時崩壊型吸入粉末剤の崩壊率及び空気力学的質量中位径の算出2019

    • Author(s)
      山盛彬子、柴田あゆみ、奥田知将、服部 登、岡本浩一
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 耐吸湿性に優れ吸入時に崩壊・膨潤する吸入粉末剤の粒子設計2018

    • Author(s)
      柴田あゆみ、石田早佑理、藤原大輝、奥田知将、岡本浩一
    • Organizer
      第35回製剤と粒子設計シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 動的水分吸着測定による吸入用粉末微粒子の吸湿性および吸湿成長の評価2017

    • Author(s)
      奥田知将,鵜飼あすか,岡本浩一
    • Organizer
      日本薬学会第137年会
    • Place of Presentation
      仙台
    • Related Report
      2016 Research-status Report
  • [Presentation] 吸入特性および耐吸湿性に優れた吸入粉末剤の開発2016

    • Author(s)
      伊藤貴章,大竹裕子,奥田知将,岡本浩一
    • Organizer
      製剤機械技術学会第26回大会
    • Place of Presentation
      豊中
    • Related Report
      2016 Research-status Report
  • [Presentation] 噴霧急速凍結乾燥微粒子の気中構造崩壊性が吸入特性に与える影響2015

    • Author(s)
      大竹裕子,奥田知将,岡本浩一
    • Organizer
      第7回粉末吸入剤研究会シンポジウム
    • Place of Presentation
      富山
    • Year and Date
      2015-11-30
    • Related Report
      2015 Research-status Report
  • [Presentation] 気中崩壊性を示す噴霧急速凍結乾燥微粒子の粒子径および賦形剤が与える気中構造崩壊/保持性への影響2015

    • Author(s)
      大竹裕子,奥田知将,岡本浩一
    • Organizer
      第32回製剤と粒子設計シンポジウム
    • Place of Presentation
      豊橋
    • Year and Date
      2015-10-22
    • Related Report
      2015 Research-status Report
  • [Presentation] 噴霧乾燥サブミクロン粒子の構造・吸入特性に及ぼす調製用溶媒の効果2015

    • Author(s)
      渡邊晃平,奥田知将,坂晃輔,藤原大輝,大竹裕子,岡本浩一
    • Organizer
      日本薬剤学会第30年会
    • Place of Presentation
      長崎
    • Year and Date
      2015-05-21
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] 吸入粉末剤及びその評価法2018

    • Inventor(s)
      岡本浩一、奥田知将
    • Industrial Property Rights Holder
      岡本浩一、奥田知将
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-187498
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report

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Published: 2015-04-16   Modified: 2020-03-30  

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