JP6905994B2 - ベタメタゾン経口スプレー製剤及び運動失調の治療への使用方法 - Google Patents
ベタメタゾン経口スプレー製剤及び運動失調の治療への使用方法 Download PDFInfo
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- JP6905994B2 JP6905994B2 JP2018555443A JP2018555443A JP6905994B2 JP 6905994 B2 JP6905994 B2 JP 6905994B2 JP 2018555443 A JP2018555443 A JP 2018555443A JP 2018555443 A JP2018555443 A JP 2018555443A JP 6905994 B2 JP6905994 B2 JP 6905994B2
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- betamethasone
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- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 1
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Description
運動失調は、歩行又は物体の拾い上げなどの随意運動中の筋肉制御の欠如を言う。基礎疾患の徴候である運動失調は、運動、発語、眼球運動及び嚥下に影響し得る。永続的な運動失調は、通常、筋肉の協調を制御する脳の一部、小脳への損傷から生じる。アルコール乱用、脳卒中、腫瘍、脳性麻痺及び多発性硬化症を含む多くの状態が、運動失調を引き起こし得る。遺伝性欠損遺伝子もまた、運動失調の原因となり得る。運動失調の治療はその原因に依存する。歩行器や杖などの適応型デバイスは、自立を維持する助けとなり得る。理学療法、作業療法、言語療法も助けとなり得る。
いくつかのタイプの運動失調及び運動失調を引き起こすいくつかの状態は遺伝性である。これは異常なタンパク質を作る特定の遺伝子の先天異常によるものである。異常なタンパク質は、主に小脳及び脊髄の神経細胞の機能を妨げ、それらを変性させる。病気が進行するにつれて、協調の問題は悪化する。
脊髄小脳性運動失調。研究者は、20を超える常染色体優性の運動失調遺伝子を標識しており、その数は増加し続ける可能性が高い。小脳性運動失調及び小脳変性はすべてのタイプに共通であるが、他の徴候及び症状、ならびに発症年齢は、特定の遺伝子変異に応じて異なる。
フリードライヒ運動失調。これは、最も一般的な遺伝性運動失調であり、小脳、脊髄や末梢神経への損傷を伴う。末梢神経は、脳や脊髄の信号を筋肉に伝える。ほとんどの場合、徴候と症状は25歳までに現れる。疾患の進行速度は様々である。最初の徴候は一般に歩行困難(歩行運動失調)である。この状態は、典型的には、腕と胴に進行する。筋肉は時間の経過とともに弱くなり、やせ細り、特に足、下肢、手の変形を引き起こす。病気が進行するにつれて発症する可能性のある他の徴候及び症状には、遅い、不明瞭発語(構音障害)、疲労;急速な不随意眼球運動(眼振)、脊柱湾曲(脊柱側弯症)、難聴;ならびに心肥大(心筋症)及び心不全を含む心臓病が挙げられる。
以下の例は、本発明の様々な態様を例示する。これらは、いかなる形であれ特許請求の範囲を限定するものと解釈されるべきではない。
ベタメタゾン液体スプレー製剤を、表4に示す成分を用いて調製する。
製剤を以下のように調製する:グルココルチコイドステロイドを精製水に撹拌しながら加え、透明な溶液が観察されるまで混合する。保存剤、緩衝剤及び他の賦形剤を撹拌しながら加え、透明な溶液が形成されるまで30分間混合する。溶液を、キャップ又は定用量機械式ポンプを備えたガラス瓶に保存する。
ベタメタゾン経口シロップ製剤を、以下の表6に示す成分を用いて調製する。製剤を以下のように調製する:ベタメタゾンを精製水に撹拌しながら加え、ソルビトールを加え、シロップが形成されるまで混合する。保存剤、緩衝剤及び他の賦形剤を撹拌しながら加え、透明な溶液が形成されるまで30分間混合する。溶液を、キャップを備えたガラス瓶で保存する。
表7に示すように、すでに承認されていた、又は市販されていたCelestone経口液体(ベタメタゾン溶液0.5mg/5mL)によって提供される用量は、体重に基づいて小児患者に12時間毎に約4ml〜30mlの溶液の投与である。大部分の小児AT患者は、随意運動中の筋肉制御の欠如のために大量の液体の嚥下が困難であり、嚥下に影響を与え、したがって大量の液体を飲み込む際に過少量投与又は過量投与に至る。本発明のベタメタゾンスプレー製剤は、0.140mlのスプレー溶液当たり1mgまでのベタメタゾンの高負荷量を提供し、これは投薬期間毎に的確かつ正確な量の薬物を送達する。12時間毎に必要とされるスプレー溶液の体積は、患者の体重に基づいて約0.14ml〜0.42ml(1〜3回のスプレー)である。本発明は、重要なことに、患者又は医療従事者が、患者の具体的な体重に対して正しい又は最適な用量を達成するために、投与するスプレーの数を選択可能にする(表7)。これは、複数回投与ポンプ装置から数回のスプレーの投与、又は数個の単回使用ポンプからの投与のいずれかによって達成することができる。小児AT用に提唱されるベタメタゾン薬物製品用量範囲は、約0.025〜約0.1mg/kg/日である。
例1、2及び3の製剤を、スクリューキャップ閉鎖物を備えた5mlの琥珀色のガラス瓶に充填し、以下の条件下で安定性試験に供した:
−ICH加速条件、40℃±2℃/75%RH±5%RH;
−ICH室温条件、25℃±2℃/60%RH±5%RHにおける;及び
−ICH冷凍条件、5℃±3℃。
例3に従って製造されたベタメタゾン経口スプレーからの薬物放出を評価するために、健康なウサギにおいてインビボ研究を行った。単回用量交差試験により、1回のスプレー当たり0.14mlの、ベタメタゾン0.25mg/スプレー(経口スプレー製剤)、及び0.25mg/2mlのベタメタゾン経口溶液(すでに承認されている製剤に相当)の薬物動態及び相対バイオアベイラビリティを評価した。薬物動態試験は、6匹の健康なウサギ(雄3匹、雌3匹)で行った。参照製品は、経口胃管栄養法の助けを借りて経口投与された、単回0.25mg用量(2ml)のベタメタゾン塩基であった。試験製剤は、定用量スプレーポンプを用いて口腔内(舌の上)に単回スプレーとして投与されるベタメタゾンナトリウムホスファート0.33mgの経口スプレー(0.25mgベタメタゾン塩基に相当し、0.1mg/kg用量である)であった。投与後30分、1、2、3、4、6、8、12及び24時間に血液サンプルを採取した。すべてのサンプルを、有効な分析LC−MS法を用いて分析した。
ベタメタゾン及びデキサメタゾンのそれぞれの塩及び塩基形態を秤量し、ガラス試験管に移した。マイクロピペットを用いて水を試験管に加え、機械式ボルテックスを用いて5分間混合し、ベタメタゾンの溶解度を評価した。結果を以下の表12に示す。
水性経口スプレー製剤を25℃で12ヶ月まで安定に保存した場合の、リン酸二ナトリウム塩から転化したベタメタゾン塩基の量を表13に報告する。図4(25℃における経時的なベタメタゾン塩基転化の予測)に示すように、線形回帰統計ツールを用いて、薬物製品の貯蔵寿命(24又は36ヶ月)にわたって形成されたベタメタゾン塩基の量を予測する。加速安定性試験のデータから、本発明者らは、ベタメタゾン塩基が0.15mg/0.14ml(スプレー体積)(1.07mg/mlに相当)を超えて転化した場合、ベタメタゾン塩基は経口スプレー製剤中に析出すると結論する。
当業者には、本明細書に記載の方法及び適用に対する他の適切な改変及び適合が適切であり、本発明の範囲又はその任意の実施形態から逸脱することなくなされ得ることは容易に明らかになるであろう。
Claims (15)
- 安定な、経口スプレー液体のグルココルチコイド製剤であって、
以下からなるグルココルチコイド、
(i)ベタメタゾン、デキサメタゾン、プレドニゾロン、メチルプレドニゾロン、ヒドロコルチゾン及びトリアムシノロン、及び前記のもののうちのいずれかの混合物からなる群から選択されるグルココルチコイドのリン酸二ナトリウム塩、ならびに
(ii)11%未満の(i)から選択されるグルココルチコイドとして遊離塩基形態にあるものであって、該グルココルチコイドは水に溶解されている;
pH調整剤及び/又は製剤のpHを調節するために十分な量の緩衝剤;さらに
1つ又は複数の任意の医薬品賦形剤として、保存剤、緩衝剤及び/又はpH調整剤、香味剤、及び水溶性甘味剤から選択されるもの、
からなる、製剤、ただし
該液体製剤は、透明であり、約2℃から約25℃の温度において保存した場合に少なくとも約24ヶ月沈殿物がなく、
前記製剤中の前記リン酸二ナトリウム塩の濃度は前記遊離塩基形態の前記グルココルチコイドに基づく濃度で約3.57mg/mlから約8.93mg/mlである。 - 製剤が、約10%未満の(1つ又は複数の)グルココルチコイドをその遊離塩基形態で含有する、請求項1に記載の安定な経口スプレー製剤。
- グルココルチコイドのリン酸二ナトリウム塩の濃度が、約7.14mg/ml〜約8.93mg/mlのグルココルチコイド遊離塩基に相当する、請求項1に記載の安定な経口スプレー製剤。
- グルココルチコイドが、経口スプレー製剤において過飽和である、請求項1に記載の安定な経口スプレー製剤。
- スプレーされると、約5〜約500ミクロンの液滴サイズを提供する、請求項1に記載の安定な経口スプレー製剤。
- 液滴の少なくとも90%が10ミクロンよりも大きい、請求項5に記載の安定な経口スプレー製剤。
- 約40μl〜約350μl/スプレーを送達する定量ポンプを用いて投与される、請求項6に記載の安定な経口スプレー製剤。
- 約2〜約8のpHを有する、請求項1に記載の安定な経口スプレー製剤。
- pH調整剤、緩衝剤、又はこれらの組み合わせをさらに含む、請求項8に記載の安定な経口スプレー製剤。
- 製剤の各スプレーが約0.14mlの体積を有し、約0.33mg、約0.66mg、約1.32mg、又は約1.65mgのベタメタゾンを二ナトリウム塩に基づく量で提供する、請求項1に記載の安定な経口スプレー製剤。
- 約2℃〜約25℃の温度で保存される、請求項1に記載の安定な経口スプレー製剤。
- グルココルチコイドがベタメタゾンからなる、請求項1から11のいずれかに記載の安定な経口スプレー製剤。
- 経口スプレー製剤が、ヒト患者の舌の上の噴煙又は流れとして、1〜20スプレーを含む単位用量で機械式スプレー装置から投与される、ヒト患者を治療する方法に使用するための、請求項1から11のいずれかに記載の安定な経口スプレー製剤。
- スプレーされると、グルココルチコイドが約5〜約500ミクロンの液滴サイズを提供し、液体粒子の90%の前記経口スプレー液滴サイズ(Dv(90))が131μm±30である使用のための、請求項11に記載の安定な経口スプレー製剤。
- 患者が運動失調を治療される使用のための、請求項13に記載の安定な経口スプレー製剤。
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CA2649895C (en) * | 2006-04-19 | 2013-03-26 | Novadel Pharma Inc. | Stable hydroalcoholic oral spray formulations and methods |
EP2043603A4 (en) | 2006-07-11 | 2010-10-27 | Arubor Corp | PREVENTION AND THERAPY OF RHINOSINUSITIS WITH PROINFLAMMATORY CYTOKINHERMERS |
CA2667307C (en) * | 2006-10-27 | 2015-12-01 | 3M Innovative Properties Company | Antimicrobial compositions comprising a c2-c5 lower alcohol, a cationic antimicrobial agent, and a fatty component containing free hydroxyl groups |
ITMI20122002A1 (it) * | 2012-11-26 | 2014-05-27 | Farmacologico Milanese Srl Lab | Preparazioni farmaceutiche liquide stabilizzate |
US9566233B2 (en) * | 2013-11-14 | 2017-02-14 | Insys Development Company, Inc. | Ondansetron sublingual spray formulation |
ES2857602T3 (es) * | 2014-03-11 | 2021-09-29 | Promius Pharma Llc | Composiciones tópicas de corticosteroides |
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US11291672B2 (en) | 2022-04-05 |
AU2017207806B2 (en) | 2022-08-04 |
HK1257023A1 (zh) | 2019-10-11 |
EP3405174A1 (en) | 2018-11-28 |
EP3405174A4 (en) | 2019-10-30 |
WO2017123744A1 (en) | 2017-07-20 |
JP2019505587A (ja) | 2019-02-28 |
CA3011015C (en) | 2024-04-16 |
US20170196889A1 (en) | 2017-07-13 |
CA3011015A1 (en) | 2017-07-20 |
AU2017207806A1 (en) | 2018-07-26 |
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