JP2022527054A - 吸入可能な乾燥粉末 - Google Patents
吸入可能な乾燥粉末 Download PDFInfo
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- JP2022527054A JP2022527054A JP2021556771A JP2021556771A JP2022527054A JP 2022527054 A JP2022527054 A JP 2022527054A JP 2021556771 A JP2021556771 A JP 2021556771A JP 2021556771 A JP2021556771 A JP 2021556771A JP 2022527054 A JP2022527054 A JP 2022527054A
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Abstract
Description
本出願は、2019年3月22日に出願された米国仮特許出願第62/822,303号明細書の優先権を主張するものであり、当該明細書の開示全体を参照することにより本明細書に援用する。
本開示は、がん、てんかん、摂食障害を含む疾患、障害、及び状態、並びに疾患の治療に付随する悪心や嘔吐等の症状を治療するための、治療有効量の大麻由来分子又はカンナビノイドを含む経肺送達用乾燥粉末組成物に関する。
本明細書に開示する実施形態において、医薬を含む乾燥粉末を対象に経口的に吸入させることにより送達するための乾燥粉末吸入器と一緒に使用される乾燥粉末組成物を記載する。一実施形態において、組成物は、個人の吸入動作によって呼吸駆動される乾燥粉末吸入器と一緒に使用するためのものであり、使い捨て吸入器として単回使用用に、又は複数回使用用として交換可能なカートリッジと共に提供される。例示的な実施形態において、吸入器は単回使用用として設計することができ、カンナビノイド製剤が吸入器に収容されて提供され、吸入器を手動で作動させて投薬配置にすることにより、吸入しようとするカンナビノイド製剤に到達可能になる。複数回使用用吸入器の例示的な実施形態において、吸入器は空で提供され、カンナビノイド組成物を収容したカプセル又はカートリッジが吸入器に配置/装着され、容器は挿入すると、自動的に、又はその後に、吸入器内に設けられている機構により、吸入用配置になる。例えば、支持体(carrier)機構は、吸入器を閉鎖するとカートリッジ内に空気通路を作り出し、吸入器の空気導管を介して到達することができる。一実施形態において、カプセル又はカートリッジは、これらに限定されるものではないが、医薬製剤等の吸入可能なカンナビノイド乾燥粉末を収容する。
を有するか、又はその塩、特に、二ナトリウム塩又はマグネシウム塩であり;ジケトピペラジンは、医薬的乾燥結晶性粉末、非晶性粉末の形態にあるか又は吸入に適した微結晶粒子を形成する。医薬的乾燥粉末は、それを必要とする患者に、乾燥粉末吸入器を用いて、単回の吸入で用量当たり最大50mgの量が投与される。一実施形態において、乾燥粉末医薬の1つ又は複数の用量は、各活性薬剤として独立に、又はこれらの組合せのいずれかで投与することができる。粉末はまた、1種の活性薬剤又は1種を超える活性薬剤と一緒に製造することもできる。乾燥粉末が単一種の活性薬剤を含む実施形態において、患者を、各粉末の1回用量で順次必要に応じて治療することができる。幾つかの実施形態において、乾燥粉末は、疾患を治療するための1種を超える活性薬剤を含むように製造することができ、患者には、1回又は1回を超える用量の乾燥粉末の組合せを投与することができる。
吸入器と一緒に使用するためのFDKP微結晶性粉末を含む界面活性剤非含有乾燥粉末:例示的な実施形態において、FDKP微結晶粒子を含む界面活性剤非含有乾燥粉末を調製した。二液供給式(dual-feed)高剪断ミキサーを用いて、ほぼ等しい質量のFDKP溶液(表1)及び酢酸溶液(表2)を約25℃±5℃に保持し、2000psiでスロート(throught)0.001-in2のオリフィスを通して均質化することにより析出物を形成した。析出物をほぼ等しい温度の脱イオン(DI)水で回収した。懸濁液中のFDKP微結晶の含有量(wt%)は約2~3.5%である。この懸濁液のFDKP濃度は、オーブン乾燥法により固形分に関し評価することが可能である。FDKP微結晶懸濁液を、任意に、脱イオン水を用いてタンジェンシャルフロー濾過により洗浄することができる。FDKP微結晶を、任意に、濾過、遠心分離、噴霧乾燥、又は凍結乾燥により単離することができる。
Δ9-THC又はCBDを含有するFDKP微結晶粒子を含む乾燥粉末の調製。実施例1に従い調製したFDKP微結晶粒子を単離し、エチルアルコール中に懸濁させた。主としてΔ9-THC又はCBDのいずれかを含む大麻抽出物の約1~4wt%のエタノール溶液及びFDKP微結晶のエタノール性懸濁液を添加した。任意に、添加剤をエタノールに溶解した溶液も加えた。混合物を、高効率サイクロンを備えたBuchi B290噴霧乾燥機を用いて噴霧乾燥させた。処理用ガスとして窒素を使用した(60mm)。混合物を、ポンプ能力12~15%、吸引速度70~100%、入口温度110~140℃で乾燥させた。Δ9-THC及び追加の添加剤の濃度(重量%)を表4に示す。乾燥粉末吸入器から排出された後のこれらの粉末の送達効率は約50%~70%の範囲にあった。
Claims (11)
- 3,6-ビス(N-フマリル-4-アミノブチル)-2,5-ジケトピペラジン及びカンナビノイドの微結晶粒子を含む乾燥粉末医薬組成物であって;前記カンナビノイドの量は、前記組成物の総重量の1%~40%(w/w)である、乾燥粉末医薬組成物。
- 前記カンナビノイドは、1種又は複数種のテトラヒドロカンナビノール、カンナビジオール、若しくはカンナビノール、又はこれらの組合せである、請求項1に記載の乾燥粉末医薬組成物。
- 前記乾燥粉末は、1,2-ジパルミトイル-sn-グリセロ-3-ホスホコリン及び1,2-ジステアロイル-sn-グリセロ-3-ホスホコリンから選択されるリン脂質を更に含む、請求項1に記載の乾燥粉末医薬組成物。
- 前記微結晶粒子は、平均細孔容積が約0.36cm3/g~約0.43cm3/gである、請求項1に記載の乾燥粉末医薬組成物。
- 前記微結晶粒子は、平均細孔径が約23nm~約28nmである、請求項1に記載の乾燥粉末医薬組成物。
- 微結晶粒子は、表面積が約59m2/g~約63m2/gの範囲にある、請求項1に記載の乾燥粉末医薬組成物。
- 前記微結晶粒子は、BJH吸着により測定された平均細孔容積が約0.43cm3/gであり、平均細孔径が約23.8nm~26.2nmの範囲にある、請求項1に記載の乾燥粉末医薬組成物。
- 乾燥粉末医薬組成物を含む乾燥粉末吸入器であって、テトラヒドロカンナビノール、カンナビジオール、又はカンナビノールを前記乾燥粉末の総含有量の1%~約40%(w/w)の量で含む、3,6-ビス(N-フマリル-4-アミノブチル)-2,5-ジケトピペラジンの微結晶粒子を含む、乾燥粉末吸入器。
- 前記乾燥粉末は、1,2-ジパルミトイル-sn-グリセロ-3-ホスホコリン及び1,2-ジステアロイル-sn-グリセロ-3-ホスホコリンから選択されるリン脂質を、前記組成物の約15%(w/w)以下の量で更に含む、請求項8に記載の乾燥粉末吸入器。
- 慢性疼痛を治療する方法であって、治療を必要とする患者に、治療有効量の請求項1に記載の乾燥粉末医薬組成物を、乾燥粉末吸入器を用いる経口吸入により投与することを含む、方法。
- 3,6-ビス(N-フマリル-4-アミノブチル)-2,5-ジケトピペラジンの微結晶粒子とカンナビノイドとを含む乾燥粉末医薬組成物を含む乾燥粉末吸入器を備える乾燥粉末薬物送達機構であって;前記カンナビノイドの量は、前記組成物の総重量の1%~40%(w/w)であり、前記微結晶粒子は、BJH吸着により測定された平均細孔容積が約0.43cm3/gであり、平均細孔径が約23.8nm~26.2nmの範囲にある、乾燥粉末薬物送達機構。
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