JP2013538788A - アリールスルファターゼaのcns送達の方法および組成物 - Google Patents
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Abstract
Description
本願は、米国特許仮出願第61/358,857号(2010年6月25日出願);第61/360,786(2010年7月1日出願);第61/387,862号(2010年9月29日出願);第61/435,710号(2011年1月24日出願);第61/442,115号(2011年2月11日出願);第61/476,210号(2011年4月15日出願);および第61/495,268号(2011年6月9日出願)に対する優先権を主張し、これらの記載内容は各々、参照により本明細書に援用される。
実際、脳の表面での拡散に対するバリア、ならびに有効且つ便利な送達方法の欠如は、任意の疾患に関する脳における適切な治療効果を達成するには大きすぎる障害物である、と多くの人々が考えていた。
本発明をより容易に理解するために、一定の用語を先ず以下で定義する。以下の用語および他の用語に関する付加的な定義は、本明細書全体を通して記述されている。
治療用タンパク質
その他のリソソーム蓄積症および補充酵素
BALB/cマウス骨髄腫株(NSO/l、ECACC番号:85110503);ヒト網膜芽細胞(PER.C6、CruCell,Leiden,The Netherlands);SV40により形質転換されたサル腎臓CV1株(COS−7、ATCC CRL 1651);ヒト胚性腎臓株(293または293細胞(懸濁液培養中での増殖のためにサブクローン化)、Graham et al.,J.Gen Virol.,36:59,1977);ヒト繊維肉腫細胞株(例えば、HT1080);ハムスター幼仔腎細胞(BHK、ATCC CCL 10);チャイニーズハムスター卵巣細胞+/−DHFR(CHO、Urlaub and Chasin,Proc.Natl.Acad.Sci.USA,77:4216,1980);マウスセルトリ細胞(TM4、Mather,Biol.Reprod.,23:243−251,1980);サル腎細胞(CV1 ATCC CCL 70);アフリカミドリザル腎細胞(VERO−76、ATCC CRL−1 587);ヒト子宮頚部癌細胞(HeLa、ATCC CCL 2);イヌ腎細胞(MDCK、ATCC CCL 34);バッファローラット肝細胞(BRL 3A、ATCC CRL 1442);ヒト肺細胞(W138、ATCC CCL 75);ヒト肝細胞(Hep G2、HB 8065);マウス乳癌(MMT 060562、ATCC CCL51);TRI細胞(Mather et al.,Annals N.Y.Acad.Sci.,383:44−68,1982);MRC 5細胞;FS4細胞;およびヒト肝細胞癌株(Hep G2)。
製剤
安定な製剤
等張度
安定化剤
充填剤
界面活性剤
凍結乾燥
再構成
CNS送達
髄腔内送達
髄腔内送達のための器具
標的組織への送達
脳標的組織
脊髄
末梢標的組織
生体分布およびバイオアベイラビリティ
異染性白質ジストロフィー症(MLD)の治療
免疫寛容
投与
キット
他の髄腔内投与した組換え酵素がCNSの細胞および組織内に分布する能力を評価するために、幼若の(12か月齢未満)カニクイザルにおいて1か月の期間にわたりGLP試験を行って、組換えにより調製したヒトアリールスルファターゼA(rhASA)の反復髄腔内(IT)投与を毒性学および安全性薬理学の観点から評価した。pH6.0の154mM NaCl、0.005%ポリソルベート20の溶媒で、rhASAの製剤を調製し製剤化した。
実施例2:放射体標識タンパク質による生体内分布
実施例3:IT投与用アリールスルファターゼA製剤
プレフォーミュレーションスクリーニング調査−緩衝剤の種類およびpHの影響
pH記憶
賦形剤の選択
製剤のロバストネス調査−安定性調査
凍結融解調査
安定性調査
総合的に、プレフォーミュレーション、凍結融解、および攪拌調査の結果によって、3つの製剤のみが、さらなる開発に適していることが暗示されている。これらの3つの製剤で、0.005%のP20の存在下にて、長期安定性調査を開始した。表27、表28、および表29に、所定の時点における3つの製剤の安定性データの概要が示されている。
実施例4−毒性
・新皮質(前頭皮質、頭頂皮質、側頭皮質および後頭皮質を含む:脳切片1〜8(および存在すればスライス9)
・古皮質(嗅球および/または梨状葉):脳切片1〜3
・大脳基底核(尾状核および被殻を含む):脳切片3および4
・辺縁系(海馬および帯状回を含む):脳切片4および5
・視床/視床下部、および黒質を含めた中脳領域:脳切片4および5
・小脳、脳橋および延髄:脳切片6〜8(および存在すればスライス9)。
アリールスルファターゼA(rhASA)の染色
等級の説明(染色された可能性のある細胞の%)
1 10%未満
2 10〜25%
3 25〜50%
4 50〜75%
5 75%以上
終了時に殺処分した個体(6か月間のEOW投与):rhASA染色切片
・脳、血管周囲、マクロファージ(全用量群、雌雄)
・脳、グリア細胞(全用量群、雌雄)
・脊髄、髄膜、マクロファージ(全用量群、雌雄)
・脊髄、血管周囲、マクロファージ(全用量群、雌雄)
・脊髄、グリア細胞(中用量および高用量の雌雄)
・肝臓、Kupffer細胞(全用量群、雌雄)
回復後に殺処分した個体(6か月間のEOW投与後に、1か月間の無投与期間)
・脳、髄膜、浸潤(中用量および高用量群、雌雄)(図16および17)
・脳、髄膜、浸潤、好酸球の%(中用量の雄;高用量の雌)
・脳、血管周囲、浸潤(中用量の雄;高用量の雌)(図18)
・脳、血管周囲、浸潤、好酸球の%(中用量の雄;高用量の雌)
・脳、灰白質、浸潤(全用量群、雌雄)
・脳、灰白質、浸潤、好酸球の%(低用量の雄)
・脳、灰白質、好酸球、壊死(低用量の雄)
・脊髄、髄膜、浸潤(中用量および高用量の雄;低用量および高用量の雌)
・脊髄、髄膜、浸潤、好酸球の%(中用量の雄;低用量の雌)
・脊髄、灰白質、浸潤(低用量の雌)
・脊髄、灰白質、浸潤、好酸球の%(低用量の雌)
・後根神経節および神経根、神経上膜、浸潤(中用量の雌)
・脊髄神経根および神経節、浸潤、好酸球(中用量および高用量の雄;全用量の雌)
・三叉神経節、浸潤、好酸球(中用量の雌雄)
回復後に殺処分した個体(6か月間のEOW投与後に、1か月間の無投与期間):rhASA染色
実施例5−薬物動態データ
6か月の個体のデータ
血清中およびCSF中濃度
実施例6−有効性
受容体
種 マウス(Mus musculus)
系統 hASAC69S/ASA(−/−)マウスおよび野生型対照
齢数 到着時で約14〜17か月齢
群数 6
個体数 ASAノックアウトマウス34匹+野生型対照11匹
到着後、健康状態を評価するために各個体を検査した。
飼育
マウスを、CareFresh紙床敷と給水ボトルとを備えた高温ポリカーボネート製のフィルタートップケージで集団飼育した。各ゲージを、計画、群番号および個体番号、ならびに雌雄を明記したケージカードでわかりやすく標識した。耳パンチ方式を用いて、各個体を1個体ずつ区別した。個体は、連邦のガイドラインに従って処置した。
個体の室内環境および光周期の目標条件は以下の通りであった:
温度 22℃±3℃
湿度 50%±20%
光周期 12時間の明期と12時間の暗期
被検試料
アイデンティティ rhASA
種類 ヒト組換えアリールスルファターゼA(rhASA)
保管条件 約4℃
溶媒
アイデンティティ rhASA溶媒(154mM NaCl、0.005%ポリソルベート20、pH約6.0)
保管条件 約4℃
溶媒の調製
投与製剤の調製
注射剤を追跡するための色素:
rhASAまたは溶媒の腰仙部IT注射
rhASAの静脈内注射
血清(全個体)
光学顕微鏡検査用の組織(群A〜F;1群当たりマウス5匹)
脂質解析用の組織(群A、BおよびF;それぞれ6、4および5個体)
実施例7−生体内分布2
概略
組織採取
脳、肝臓および脊髄抽出物の調製ならびにrhASA濃度の決定
実施例8:薬物動態および生体内分布試験
コホート1:5患者(最低用量)
コホート2:5患者(中間用量)
コホート3:5患者(最高用量)
無作為に5患者を無治療とする。
Claims (69)
- 髄腔内投与用の安定な製剤であって、アリールスルファターゼA(ASA)タンパク質と、塩と、ポリソルベート界面活性剤とを含む安定な製剤。
- 前記ASAタンパク質が約0〜100mg/mLの範囲の濃度で存在する、請求項1に記載の安定な製剤。
- 前記ASAタンパク質が、10mg/mL、30mg/mL、50mg/mL、または100mg/mLから選択した濃度で存する、請求項1または2に記載の安定な製剤。
- 前記ASAタンパク質が配列番号1のアミノ酸配列を含む、請求項1〜3のいずれか一項に記載の安定な製剤。
- 前記ASAタンパク質がヒト細胞株から生成される、請求項1〜4のいずれか一項に記載の安定な製剤。
- 前記ASAタンパク質がCHO細胞から生成される、請求項1〜4のいずれか一項に記載の安定な製剤。
- 前記塩がNaClである、請求項1〜6のいずれか一項に記載の安定な製剤。
- 前記NaClが、約0〜300mMの範囲の濃度で存在する、請求項7に記載の安定な製剤。
- 前記NaClが、約137〜154mMの範囲の濃度で存在する、請求項7に記載の安定な製剤。
- 前記NaClが、約154mMの濃度で存在する、請求項9に記載の安定な製剤。
- 前記ポリソルベート界面活性剤が、ポリソルベート20、ポリソルベート40、ポリソルベート60、ポリソルベート80、およびこれらの組み合わせからなる群から選択される、請求項1〜10のいずれか一項に記載の安定な製剤。
- 前記ポリソルベート界面活性剤がポリソルベート20である、請求項11に記載の安定な製剤。
- 前記ポリソルベート20が、約0〜0.2%の範囲の濃度で存在する、請求項12に記載の安定な製剤。
- ポリソルベート20が、約0.005%の濃度で存在する、請求項13に記載の安定な製剤。
- 緩衝剤をさらに含む、請求項14に記載の安定な製剤。
- 前記緩衝剤が、リン酸塩、酢酸塩、ヒスチジン、コハク酸塩、クエン酸塩、トリス、およびこれらの組み合わせからなる群から選択される、請求項15に記載の安定な製剤。
- 前記緩衝剤がリン酸塩である、請求項1〜16のいずれか一項に記載の安定な製剤。
- 前記リン酸塩が50mM以下の濃度で存在する、請求項17に記載の安定な製剤。
- 前記リン酸塩が20mM以下の濃度で存在する、請求項17に記載の安定な製剤。
- pHが約3〜8.0である、請求項1〜19のいずれか一項に記載の安定な製剤。
- pHが約6.0〜6.5である、請求項20に記載の安定な製剤。
- pHが約6.0である、請求項21に記載の安定な製剤。
- 液状製剤である、請求項1〜22のいずれか一項に記載の安定な製剤。
- 凍結乾燥粉末として調合される、請求項1〜15のいずれか一項に記載の安定な製剤。
- 安定化剤をさらに含む、請求項17に記載の安定な製剤。
- 前記安定化剤が、ショ糖、グルコース、マンニトール、ソルビトール、PEG4000、ヒスチジン、アルギニン、リジン、リン脂質、およびこれらの組み合わせからなる群から選択される、請求項25に記載の安定な製剤。
- 髄腔内投与用の安定な製剤であって、アリールスルファターゼA(ASA)タンパク質と、塩と、緩衝剤とを含む安定な製剤。
- 前記ASAタンパク質が、約0〜100mg/mLの範囲の濃度である、請求項27に記載の安定な製剤。
- 前記緩衝剤が、リン酸塩、酢酸塩、ヒスチジン、コハク酸塩、クエン酸塩、トリス、およびこれらの組み合わせからなる群から選択される、請求項27または28に記載の安定な製剤。
- 前記緩衝剤がリン酸塩である、請求項29に記載の安定な製剤。
- 前記リン酸塩が、約20mM以下の濃度である、請求項30に記載の安定な製剤。
- 前記リン酸塩が、約50mM以下の濃度である、請求項31に記載の安定な製剤。
- ポリソルベート界面活性剤をさらに含む、請求項27〜31のいずれか一項に記載の安定な製剤。
- 前記ポリソルベート界面活性剤が、ポリソルベート20、ポリソルベート40、ポリソルベート60、ポリソルベート80、およびこれらの組み合わせからなる群から選択される、請求項33に記載の安定な製剤。
- 前記ポリソルベート界面活性剤が約0〜0.2%の範囲の濃度で存在する、請求項33または34に記載の安定な製剤。
- pHが約6.0〜6.5である、請求項27〜35のいずれか一項に記載の安定な製剤。
- 請求項1〜36のいずれか一項に記載の安定な製剤の単一剤形を含む容器。
- アンプル、バイアル、カートリッジ、レザバー、Lyo−ject、または前充填した注射器から選択される、請求項37に記載の容器。
- 前充填した注射器である、請求項37または38のいずれか一項に記載の容器。
- 前記前充填した注射器が、シリコーンの焼付コーティングを有するホウケイ酸ガラス注射器、スプレーしたシリコーンを有するホウケイ酸ガラス注射器、または、シリコーンを含まないプラスチック樹脂注射器から選択される、請求項39に記載の容器。
- 前記安定な製剤が約50.0mL未満の体積で存在する、請求項37〜40のいずれか一項に記載の容器。
- 前記安定な製剤が約5.0mL未満の体積で存在する、請求項37〜40のいずれか一項に記載の容器。
- 異染性白質ジストロフィー(MLD)症の治療方法であって、
治療の必要な対象に、請求項1〜29のいずれか一項に記載の製剤を髄腔内投与するステップ
を含む方法。 - 前記製剤の髄腔内投与によって、前記対象において実質的な副作用が生じない、請求項43に記載の方法。
- 前記製剤の髄腔内投与によって、前記対象において、実質的なT細胞媒介性適応免疫反応が生じない、請求項44に記載の方法。
- 前記製剤の髄腔内投与によって、ASAタンパク質を深部の脳白質の乏突起グリア細胞に送達する、請求項43〜45のいずれか一項に記載の方法。
- 前記ASAタンパク質をニューロン、グリア細胞、血管周囲細胞、および/または髄膜細胞に送達する、請求項43〜46のいずれか一項に記載の方法。
- 前記ASAタンパク質をさらに脊髄のニューロンに送達する、請求項43〜47のいずれか一項に記載の方法。
- 前記製剤の髄腔内投与によってさらに、末梢標的組織中の前記ASAタンパク質を全身送達する、請求項43〜48のいずれか一項に記載の方法。
- 前記末梢標的組織が、肝臓、腎臓、および/または心臓から選択される、請求項49に記載の方法。
- 前記製剤の髄腔内投与によって、脳標的組織、脊髄ニューロン、および/または末梢標的組織におけるリソソーム局在化が生じる、請求項43〜50のいずれか一項に記載の方法。
- 前記製剤の髄腔内投与によって、脳標的組織、脊髄ニューロン、および/または末梢標的組織におけるスルファチド蓄積量が減少する、請求項43〜51のいずれか一項に記載の方法。
- 前記スルファチド蓄積量が対照と比較して少なくとも20%、40%、50%、60%、80%、90%、1倍、1.5倍、または2倍減少する、請求項52に記載の方法。
- 前記製剤の髄腔内投与によって、CNSおよびPNS内での進行性脱髄および軸索消失が低減される、請求項43〜53のいずれか一項に記載の方法。
- 前記製剤の髄腔内投与によって、脳標的組織、脊髄ニューロン、および/または末梢標的組織におけるASAの酵素活性が増大する、請求項43〜54のいずれか一項に記載の方法。
- 前記ASAの酵素活性が対照と比較して少なくとも1倍、2倍、3倍、4倍、5倍、6倍、7倍、8倍、9倍、または10倍増大する、請求項56に記載の方法。
- 前記増大したASAの酵素活性が少なくとも約10nmol/時・mg、20nmol/時・mg、40nmol/時・mg、50nmol/時・mg、60nmol/時・mg、70nmol/時・mg、80nmol/時・mg、90nmol/時・mg、100nmol/時・mg、150nmol/時・mg、200nmol/時・mg、250nmol/時・mg、300nmol/時・mg、350nmol/時・mg、400nmol/時・mg、450nmol/時・mg、500nmol/時・mg、550nmol/時・mg、または600nmol/時・mgである、請求項55または56に記載の方法。
- 前記ASAの酵素活性が腰部領域で増大する、請求項55に記載の方法。
- 前記腰部領域で増大したASAの酵素活性が少なくとも約2000nmol/時・mg、3000nmol/時・mg、4000nmol/時・mg、5000nmol/時・mg、6000nmol/時・mg、7000nmol/時・mg、8000nmol/時・mg、9000nmol/時・mg、または10,000nmol/時・mgである、請求項58に記載の方法。
- 前記製剤の髄腔内投与によって、MLD症の少なくとも1つの症状または特徴の強度、重症度、もしくは頻度が低減されるか、またはMLDの少なくとも1つの症状または特徴が遅発する、請求項43〜59のいずれか一項に記載の方法。
- MLD症の前記少なくとも1つの症状または特徴が、頭蓋内圧増大、真空水頭症、中枢および末梢神経系と内臓器官とにおけるミエリン鞘中の硫酸化糖脂質蓄積、CNSおよびPNS内の進行性脱髄および軸索損失、ならびに/または運動および認知機能障害である、請求項60に記載の方法。
- 前記髄腔内投与を2週間に1回実施する、請求項43〜61のいずれか一項に記載の方法。
- 前記髄腔内投与を1ヶ月に1回実施する、請求項43〜61のいずれか一項に記載の方法。
- 前記髄腔内投与を2ヶ月に1回実施する、請求項43〜61のいずれか一項に記載の方法。
- 前記髄腔内投与を静脈内投与と併用する、請求項43〜64のいずれか一項に記載の方法。
- 前記静脈内投与が1ヶ月に1回以下の頻度である、請求項65に記載の方法。
- 前記静脈内投与が2ヶ月に1回以下の頻度である、請求項65に記載の方法。
- 前記髄腔内投与を静脈内投与の非存在下で用いる、請求項43〜64のいずれか一項に記載の方法。
- 前記髄腔内投与を併用免疫抑制療法の非存在下で用いる、請求項43〜68のいずれか一項に記載の方法。
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