JP6574415B2 - アタザナビルおよびコビシスタットのhiv治療製剤 - Google Patents
アタザナビルおよびコビシスタットのhiv治療製剤 Download PDFInfo
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- JP6574415B2 JP6574415B2 JP2016520670A JP2016520670A JP6574415B2 JP 6574415 B2 JP6574415 B2 JP 6574415B2 JP 2016520670 A JP2016520670 A JP 2016520670A JP 2016520670 A JP2016520670 A JP 2016520670A JP 6574415 B2 JP6574415 B2 JP 6574415B2
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- Prior art keywords
- cobicistat
- atazanavir
- formulation
- tablet
- mixture
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Description
本願は、2013年10月7日付出願の、出典明示によりその全内容を本明細書に組み込む、米国仮特許出願番号61/887,574の優先権を主張する。
本発明は、抗レトロウイルス化合物である2種の薬物の組み合わせを含有する、HIVに対して有用な製剤を対象とする。特に、本発明はアタザナビル(atazanavir)とコビシスタット(cobicistat)の二層複合製剤を対象とする。加えて、本発明は、優れた物理特性と低い分解レベルを有し、2種の活性な薬物成分を効率的に送達する、アタザナビルとコビシスタットの多剤混合薬の錠剤を対象とする。本発明はまた、これらの製剤を治療の必要な患者に投与する方法を対象とする。
アタザナビル(ATV)顆粒の製造
以下に、ATV/COBIのフィルムコーティングした錠剤のためのATV顆粒を製造する方法を記載する。必要ならば、材料は予めスクリーニングされてもよい。
2.工程1からのプレブレンドを水との湿式造粒操作に付す。
3.工程2からの顆粒を適切なコミル(Comil)を用いて湿式粉砕に供する。
4.工程3からの顆粒を適切な流動床乾燥装置にて乾燥させる。
5.工程4からの乾式顆粒を適切なコミルを用いてサイジングする。
6.微結晶セルロース(顆粒外部分)、澱粉グリコール酸ナトリウム(顆粒外部分)およびクロスポビドン(顆粒外部分)を工程5からの顆粒に加え、適切なブレンダーでブレンドする。
7.ステアリン酸マグネシウム(顆粒外部分)を工程6からのブレンドに加え、適切なブレンダーでブレンドする。ATV顆粒を適切な容器に集める。
以下に、ATV/COBIフィルムコーティングした錠剤のためのコビシスタット(COBI)顆粒を製造する方法を記載する。必要ならば、材料は予めスクリーニングされてもよい。
2.ステアリン酸マグネシウム(顆粒内部分)を工程1からのプレブレンド1を含有する適切なブレンダーに加える。材料をブレンドする。
3.工程2からのプレブレンド2の混合物をローラ圧縮に付す。その圧縮した材料を適当な大きさのスクリーンで粉砕し、顆粒を生成する。
4.微結晶セルロース(顆粒外部分)を工程3からの顆粒に加え、適切なブレンダーにてブレンドする。
5.ステアリン酸マグネシウム(顆粒外部分)を工程4からのブレンドに加え、適切なブレンダーでブレンドする。COBI顆粒を適切な容器に集める。
以下に、ATV顆粒およびCOBI顆粒からのATV/COBIフィルムコーティングした錠剤を製造する方法を記載する。
2.オパドライ(Opadry)ピンクコーティング材料を水中に混合することでコーティング懸濁液を調製する。
3.工程1からのコア錠を工程2で調製したコーティング懸濁液を用いてフィルムコーティングする。
4.そのフィルムコーティングした錠剤を適切な容器にパッケージする。
ATV/COBIフィルムコーティングした錠剤についての代表的なバッチの大きさおよび処方を、各々、表1および2で示す。
アタザナビルの(遊離塩基としての)量は、理論的には、硫酸アタザナビルの87.8%に相当する。
表示される量は150mgのコビシスタット(二酸化ケイ素を含まない)に相当する。二酸化ケイ素上のコビシスタットの量は、二酸化ケイ素上のコビシスタットについてのドラッグ・コンテント・ファクター(DCF)に基づいて、微結晶セルロースでの随伴的調整と共に調整される。
q.s.=適量;NA=未適用
b:試験的およびレジストレーション的安定性のバッチについての外観/記載である。
c:市販製品についての外観/記載である。
d:起源の不明な個々のいずれも特定されない不純物のピークがCOBIに対して報告されるであろう。
e:ATV工程の不純物およびATV分解物の合計;薬物原料工程と関連付けられる不純物は個々に特定されないが、「ATV全体の不純物/分解物」の下で捕捉される。
f:COBI工程の不純物およびCOBI分解物の合計;薬物原料工程と関連付けられる不純物は個々に特定されないが、「COBI全体の不純物/分解物」の下で捕捉される。
ATV関連の不純物/分解物はATV/COBI FCTでは観察されない。GS−465430、GS−9612、GS−445739、GS−9398、GS−344433、GS−9454はコビシスタットの薬物原料関連の不純物であり、薬物原料の分解物でもある。BMT−111068、BMT−111069、BMT−115982、およびBMT−089290はさらなるコビシスタット関連の薬物原料の分解物である。
提案されるスペック(表3Aに示されるスペック)についての正当化は以下のように支持される:
ATVのATV/COBI(300/150mg)のFDCでの生物学的同等性を証明するのに、一の研究を、軽食と一緒に服用されるように、ATVカプセル(300mg)をCOBI錠(150mg)と一緒に投与して比較して行った。
b:帰属の処理群に基づきピリオド4の終わり(24日目)に除外される対象
c:帰属の処理群に基づきピリオド5の終わり(31日目)に除外される対象
d:スクリーニング&エンロールメント
処理B:軽食の後で投与されるアタザナビル(300mg)/コビシスタット(150mg)−FDC(錠剤)
処理C:空腹条件下で一緒に投与されるアタザナビル(300mg)(カプセル)+コビシスタット(150mg)(錠剤)
処理D:空腹条件下で投与されるアタザナビル(300mg)/コビシスタット(150mg)−FDC(錠剤)
処理E:高脂肪の食事の後で投与されるアタザナビル(300mg)/コビシスタット(150mg)−FDC(錠剤)
Claims (12)
- a)アタザナビル;および
b)コビシスタット
を別々の層に含む、HIVに対して有用な抗レトロウイルス薬の錠剤である製剤であって、錠剤が二層錠であり、コビシスタットが二酸化ケイ素に担持された形態である製剤。 - アタザナビルが硫酸アタザナビルの形態である、請求項1に記載の製剤。
- 錠剤が目に見えるクラッキングを示さない、請求項2に記載の製剤。
- 二層錠が、遊離塩基として約300mgの硫酸アタザナビル、および約150mgのコビシスタットを送達する、請求項1〜3のいずれかに記載の製剤。
- ステアリン酸、ステアリン酸マグネシウム、微結晶セルロース、澱粉グリコール酸ナトリウム、クロスポビドン、ヒドロキシプロピルセルロース、およびクロスカルメロースナトリウムの群より選択される少なくとも1つの賦形剤をさらに含む、請求項4に記載の製剤。
- アタザナビルとコビシスタットが一緒になって製剤の約35−85%(w/w)を構成する、請求項1に記載の製剤。
- アタザナビル、コビシスタットおよび医薬的に許容される担体を含む請求項1に記載の製剤であって、約0.2%以下の分解物としてのBMT−115982またはBMT−089290を含む、製剤。
- アタザナビル、コビシスタットおよび医薬的に許容される担体を含む請求項4に記載の製剤であって、AUC(INF)で測定した場合のアタザナビルのプロフィールである血中濃度が35623ng・h/mLの約80%〜125%であり、AUC(0−T)で測定した場合のアタザナビルのプロフィールである血中濃度が34848ng・h/mLの約80%〜125%である、製剤。
- 40℃、相対湿度75%で8週間経過した後に、コビシスタットの全不純物を約3%未満含み、あるいは室温で貯蔵した場合に、30℃/75%RHで貯蔵した場合に、または25℃/60%RHで貯蔵した場合に、約12ヶ月でコビシスタットの全不純物を約2%未満含む、請求項1に記載の製剤。
- 室温条件下で打錠機から外して24時間以内にクラックを生じない、請求項9に記載の製剤。
- アタザナビル/コビシスタット錠の製剤の製造方法であって、
a)アタザナビルと、1または複数の賦形剤(少なくとも1つは微結晶セルロースである)とを分割して混合し、ここで該アタザナビルをその1または複数の賦形剤の第1の部分とまず混合して第1のアタザナビル混合物を生成し、さらにはその第1の混合物を次に水との湿式造粒に付し、ついで湿式粉砕し、サイジングして乾燥させ、そして該賦形剤の第2の部分を次にその乾燥させた第1の混合物と混合し、第2のアタザナビル混合物を生成し;
b)コビシスタットと、1または複数の賦形剤(少なくとも1つは微結晶セルロースである)とを分割して混合し、ここで該コビシスタットは二酸化ケイ素に担持された形態であって、該コビシスタットをその1または複数の賦形剤の第1の部分とまず混合して第1のコビシスタット混合物を生成し、その第1の混合物を次にローラ圧縮に付し、顆粒に粉砕し、そして該賦形剤の第2の部分を次にその顆粒とした第1の混合物と混合し、第2のコビシスタット混合物を生成し;および
c)該第2のアタザナビル混合物と、該第2のコビシスタット混合物とをそれぞれ別々の層に含む二層錠に圧縮する
ことを含む、方法。 - 工程a)にて、賦形剤の第1の部分が顆粒内賦形剤であり、該賦形剤の第2の部分が顆粒外賦形剤であり;さらには工程b)にて、賦形剤の第1の部分が顆粒内賦形剤であり、該賦形剤の第2の部分が顆粒外賦形剤である、請求項11に記載の方法。
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