JP6469698B2 - ビロソーム製剤の改良 - Google Patents
ビロソーム製剤の改良 Download PDFInfo
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- JP6469698B2 JP6469698B2 JP2016540516A JP2016540516A JP6469698B2 JP 6469698 B2 JP6469698 B2 JP 6469698B2 JP 2016540516 A JP2016540516 A JP 2016540516A JP 2016540516 A JP2016540516 A JP 2016540516A JP 6469698 B2 JP6469698 B2 JP 6469698B2
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Woodら(1977年)に記載されている一元放射免疫拡散法は、ビロソーム試料中のHAの定量的かつ定性的測定に結びつく。抗原を界面活性剤(Zwittergent 3−14界面活性剤、VWR)中で可溶化して、株特異的抗体を含有する寒天ゲル中でのそれらの拡散を可能にする。抗原が過剰に存在する場合には抗原と抗体が結合し、小さくかつ可溶性の抗原−抗体複合体を形成することになる。ゲル中への拡散のせいで、平衡に達し不溶性沈降輪が形成されるまで、より多数の抗体が結合することになる。円の外縁における不溶性の抗原−抗体複合体の量は徐々に増加し、したがって円の直径は徐々に大きくなる。円の直径の二乗(また面積)は、抗原の最初の濃度に正比例し、かつゲル中の抗体濃度に反比例する。直径サイズを測定し、それを検量線と比較することにより、試料中の活性抗原の濃度が得られることになる。
試料をピペットでとり2つ組でウェルに入れ、次いで湿潤チャンバー中で18〜24時間インキュベートする。次いでゲルを蒸留水で洗浄し、次いで染色液に15分間浸漬する。ゲルを脱色液に4分間浸漬した後、12時間乾燥し、次いで評価の準備ができる。評価は、ゲルのスキャン画像上でImmulabソフトウェアにより行う。円の直径の測定値は定量化のためにCombistasソフトウェアに送られる。
ストレスを加えた条件下および貯蔵時のビロソームの品質を調べるために、Malvern’s Z−sizer nano ZSによりビロソームの直径平均サイズを測定する。希釈されていない試料をZ−sizeのキュベットに装填し、He−Ne Laser(λ=633nm)および173°前方検出器を用いて直接に測定する。
実験の設計および方法論
異なるインフルエンザ株由来のHA分子をそれぞれ含む、3種類の異なるインフルエンザ由来のビロソーム調合物を1つの対照組成物に調製し、「Cogent μSCALE TFFシステム」UF/DFインストルメント(Millipore)を用いて再緩衝して8種類の実験的製剤(表1)にした。溶出液を濾過滅菌(0.22μm)し、等分してガラス瓶に入れた(1瓶につき3mL)。この対照組成物は、50mM KH2PO4/Na2HPO4で7.4のpHに緩衝され、かつ約82mMの濃度でNaClを含む現在市販されているInflexal(登録商標)V組成物である。
A/カリフォルニア由来のビロソームについて平均直径サイズおよびHA濃度を1回の凍結/解凍サイクルの前および後に測定した(図1)。1回の凍結/解凍サイクル後、対照組成物は、直径サイズ(図1A)およびHA濃度(図1B)の両方に関してビロソームの安定性にとって不利であることが観察された。
実験の設計および方法論
試験された様々な製剤の温度上昇時の凝集開始および全体的サイズの変化を特定するために、温度に対するビロソーム直径サイズの変化を測定することによって温度プロフィールを得た。35℃から75℃までの温度の傾斜をZ−sizer ZS(Malvern)を用いて得て、ビロソームサイズをその同じキュベット中で3℃おきに直接に測定した。
試験された様々な製剤におけるビロソームの凝集開始温度および全体的サイズ変化を表す温度依存性プロフィールを図7(A、B、およびC)に示す。分析された3種類の株のすべてについて対照組成物は、加速温度ストレス後の熱安定性を確保するための次善最適であった。実際にすべての株についてビロソームの直径サイズは、52℃〜62℃の間の温度範囲において劇的に増大(300nmを超えるまで)した。B/ブリスベン(図7B)の場合、試験された新規製剤のほとんどすべてが開始温度を上昇させ、pH7.5のトレハロース含有組成物は、最大サイズに与えるプラス効果を高温で到達させた。すなわち最大直径サイズは300nmに取って代わらなかった。
実験の設計および方法論
塩濃度低減時の凝集開始および全体的サイズの変化を特定するために、塩濃度に対するビロソームサイズの変化を測定する滴定プロファイル分析を細胞培養したA/ヴィクトリア由来のビロソーム上で行った。130mMから33mMまでの塩(NaCl)濃度の傾斜をZ−sizer ZS(Malvern)中で実施し、ビロソームサイズを同じキュベット中でNaCl濃度を減少して19回測定した。
A/ヴィクトリアのビロソームの、或る一定のNaCl濃度におけるビロソームの凝集開始と、全体的サイズ変化とを表すNaCl濃度依存性プロフィールを図8に示す。
実験の設計および方法論
異なるインフルエンザ株由来のHA分子をそれぞれ含む、3種類の異なるインフルエンザ由来のビロソーム調合物を1つの対照組成物に調製し、「Cogent μSCALE TFFシステム」UF/DFインストルメント(Millipore)を用いて再緩衝して2種類の実験的製剤(表2)にした。この対照製剤はまた、緩衝液交換の影響を排除するために同じシステムで再緩衝された。
細胞由来のA/カリフォルニアのビロソームについて平均直径サイズおよびHA濃度を1回の凍結/解凍サイクルの前および後に測定した(図9)。1回の凍結/解凍サイクル後、対照組成物は、直径サイズ(図9A)およびHA濃度(図9B)の両方に関してビロソームの安定性にとって不利であることが観察された。
実験の設計および方法論
異なるインフルエンザ株由来のHA分子をそれぞれ含む、3種類の異なるインフルエンザ由来のビロソーム調合物を1つの対照組成物に調製し、「Cogent μSCALE TFFシステム」UF/DFインストルメント(Millipore)を用いて再緩衝して2種類の実験的製剤(表1に開示されているような)にした。この対照製剤はまた、緩衝液交換の影響を排除するために同じシステムで再緩衝された。
三価ビロソームを<−65℃で12週間貯蔵し、平均直径サイズおよびHA濃度をt=0およびt=12週間の時点で測定した(図17)。
Freixeiro et al.,“Study of the stability of proteoliposomes as vehicles for vaccines against Neisseria meningitidis based on recombinant porin complexes”,Int J Pharm.2013 Feb 25;443(1−2):1−8.doi:10.1016/j.ijpharm.2012.12.046.Epub 2013 Jan 7.
Herzog et al.,“Eleven years of Inflexal V−a virosomal adjuvanted influenza vaccine”,Vaccine.2009 Jul 16;27(33):4381−7.doi:10.1016/j.vaccine.2009.05.029.Epub 2009 May 29.
Hincha et al.“Trehalose Increases Freeze−Thaw Damage in Liposomes Containing Chloroplast Glycolipids”,Cryobiology.1998 May;36(3):245−9.
Meunier F et al.“Liposomal amphotericin B(AmBisome):safety data from a phase II/III clinical trial.”J Antimicrob Chemother.1991;28 Suppl B:83-91.
Mishler et al,“Inflexal(登録商標)V a trivalent virosome subunit influenza vaccine:production”,Vaccine 20(2002)B17-B23
Stegmann et al.,“Functional reconstitution of influenza virus envelopes.”EMBO J.1987 Sep;6(9):2651−9.
Wood et al.,“An improved single−radial−immunodiffusion technique for the assay of influenza haemagglutinin antigen:application for potency determinations of inactivated whole virus and subunit vaccines”,J Biol Stand.1977;5(3):237−47.
また、本発明は以下を提供する。
[1]
a)ビロソームと、
b)KH 2 PO 4 /Na 2 HPO 4 緩衝液であって、前記リン酸の濃度が約15mM〜30mMの間の範囲にある、緩衝液と、
c)塩であって、前記塩の濃度が60mMを超える、塩と、
d)二糖と
を含む組成物であって、6.5〜8の間の範囲のpHを有する、組成物。
[2]
前記二糖の濃度が、約2%(w/w)〜10%(w/w)の間の範囲にある、[1]に記載の組成物。
[3]
前記二糖が、トレハロースおよびスクロースの群から選択される、[1]または[2]に記載の組成物。
[4]
前記二糖がトレハロースである、[3]に記載の組成物。
[5]
前記二糖がスクロースである、[3]に記載の組成物。
[6]
前記組成物が、約7〜7.8の範囲のpHを有する、[1]〜[5]のいずれか一項に記載の組成物。
[7]
前記組成物が、約7.5のpHを有し、かつトレハロースまたはスクロースを3%(w/w)〜5%(w/w)の間の範囲の濃度で含む、[1]に記載の組成物。
[8]
塩を60mM〜85mMの間の範囲の濃度でさらに含む、[1]〜[7]のいずれか一項に記載の組成物。
[9]
前記塩がNaClである、[8]に記載の組成物。
[10]
前記組成物が液体組成物である、[1]〜[9]のいずれか一項に記載の組成物。
[11]
[1]〜[10]のいずれか一項に記載の組成物を調製することを含む、ビロソームの保存方法。
[12]
[1]〜[10]のいずれか一項に記載の組成物を調製することおよび前記組成物を2℃〜8℃の間の範囲の温度で貯蔵することを含む、ビロソームの保存方法。
[13]
[1]〜[10]のいずれか一項に記載の組成物を調製することおよび前記組成物を−80℃〜−65℃の間の範囲の温度で貯蔵することを含む、ビロソームの保存方法。
[14]
[1]〜[10]のいずれか一項に記載の組成物を調製することおよび前記組成物を−15℃〜−30℃の間の範囲の温度で貯蔵することを含む、ビロソームの保存方法。
Claims (8)
- a)インフルエンザウィルス由来の赤血球凝集素およびノイラミニダーゼを含むビロソームと、
b)KH2PO4/Na2HPO4緩衝液であって、前記リン酸の濃度が15mM〜30mMの間の範囲にある、緩衝液と、
c)NaClであって、前記NaClの濃度が60mM〜130mMの間の範囲にある、NaClと、
d)トレハロースであって、前記トレハロースの濃度が2%(w/w)〜10%(w/w)の間の範囲にある、トレハロースと
を含む組成物であって、6.5〜8の間の範囲のpHを有する、液体組成物。 - 前記組成物が、7〜7.8の範囲のpHを有する、請求項1に記載の組成物。
- 前記組成物が、7.5のpHを有し、かつトレハロースを3%(w/w)〜5%(w/w)の間の範囲の濃度で含む、請求項1に記載の組成物。
- NaClの濃度が60mM〜85mMの間の範囲にある、請求項1〜3のいずれか一項に記載の組成物。
- 請求項1〜4のいずれか一項に記載の組成物を調製することを含む、ビロソームの保存方法。
- 前記組成物を2℃〜8℃の間の範囲の温度で貯蔵することをさらに含む、請求項5に記載のビロソームの保存方法。
- 前記組成物を−80℃〜−65℃の間の範囲の温度で貯蔵することをさらに含む、請求項5に記載のビロソームの保存方法。
- 前記組成物を−15℃〜−30℃の間の範囲の温度で貯蔵することをさらに含む、請求項5に記載のビロソームの保存方法。
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US7253262B2 (en) * | 1995-01-19 | 2007-08-07 | Quandrant Drug Delivery Limited | Dried blood factor composition comprising trehalose |
CA2799545A1 (en) * | 2000-03-07 | 2001-09-13 | Merck Sharp & Dohme Corp. | Adenovirus formulations |
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