JP2022513001A - B型肝炎の治療のための免疫原性組成物 - Google Patents
B型肝炎の治療のための免疫原性組成物 Download PDFInfo
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Abstract
Description
[0016]以下は、本明細書において参照される配列のリストである:
[0017]
[0018]
[0019]配列番号3は、HBsAgアミノ酸配列の大型タンパク質である:
MGLSWTVPLE WGKNQSTSNP LGFFPDHQLD PAFGANSNNPDWDLNSNKDH
WPQANQVGVG AFGPGFTPPH GGLLGWSSQA QGTLHTVPAVPPPASTNRQT
KRQPTPISPP LRDSHPQAMQ WNSTAFHQAL QHPRVRGLYFPAGGSSSGTV
NPAQNIASHI SSISSRTGDP APNMENITSG FLGPLLVLQAGFFLLTRILT
IPQSLDSWWT SLNFLGGSPV CLGQNSQSPT SNHSPTSCPPICPGYRWMCL
RRFIIFLFIL LLCLIFLLVL LDYQGMLPVC PLIPGSTTTSTGPCKTCTTP
AQGNSMFPSC CCTKPTDGNC TCIPIPSSWA FAKYLWEWGSVRFSWLSLLV
PFVQWFVGLS PTVWLSVIWM MWYWGPNLYN ILSPFIPLLPIFFCLWVYI
[0060]S、pre-S1及びpre-S2タンパク質の3つ全てからなるB型肝炎表面抗原を、米国特許第5,242,812号に記載される方法に従ってCHO細胞において調製した。
[0063]水酸化アルミニウムアジュバント及びリン酸アルミニウムアジュバントへのB型肝炎表面抗原の結合を、以下の通り測定した。簡潔には、滅菌したバイオセーフティキャビネット内で各ワクチン製剤500μLを、移す前にピペット操作によって10~20回混合して溶液を確実に均一にした後に滅菌したポリプロピレン遠心管に無菌的に移した。全てのアリコートを、14,000gで120分間次いで遠心分離した。上清(450μL)を、20~200μLピペットを使用して免疫原性製剤を含有する遠心分離した管から慎重に取り出し、新たな滅菌ポリプロピレン遠心管に移した。免疫原性製剤のペレットを含有する遠心分離した管に、取り出した容量と等容量(450μL)の緩衝液を添加することによって再懸濁した。管を適切に標識した(遠心分離した免疫原性製剤の上清対再懸濁したペレット)。希釈したペレット(結合したHBsAgを含有する)及び上清(遊離HBsAgを含有する)を冷蔵庫内で、2~8℃で貯蔵した。下の表3は、非結合/遊離HBsAgの量に対するHBsAg抗原濃度、アルミニウムアジュバントの選択及びアジュバント用量の影響を実証する。
[0067]この実施例は、異なる濃度の抗原(S、Pre-S1及びPre-S2タンパク質を含むHBsAg)及び水酸化アルミニウムアジュバントからの500μg/mLのアルミニウムを含む異なる2つの免疫原性製剤(表3のTA5及びTA6)による免疫化後のマウスにおけるT細胞応答の評価について記載する。Balb/cマウスに、ヒト用量製剤の1/20のワクチン(即ちTA6の抗原0.5μg及びTA5の抗原1.0μg)を用いて0、3、10(又は13)週目に3回ワクチン接種した。マウスを、3回目のワクチン接種後6日目に屠殺し、下記の酵素結合免疫スポットアッセイ(「ELISPOT」)により重複するペプチドプールを使用してpre-S1、pre-S2及びHBsAg Sタンパク質に対する応答を測定した。同程度の抗HBsAg抗体応答が、2つの製剤により誘導された(データ不掲載)。
[0070]この実施例は、異なる2つの免疫原性組成物によるワクチン接種後のマウスにおけるT細胞応答の評価について記載する。第1の組成物は、S、Pre-S1及びPre-S2タンパク質を含む10μg/mL HBsAg並びにリン酸アルミニウムアジュバントとして500μg/mLアルミニウムを含むSci-B-Vacとして公知の市販の予防的ワクチン(表3においてTA6)であった。第2の組成物は、2倍高濃度の同じHBsAg(20μg/mL)及びリン酸アルミニウムアジュバントとして500μg/mLアルミニウムを含む本開示の免疫原性組成物(表3のTA11)であった。Balb/cマウスに、ヒト用量の1/20の各免疫原性組成物(即ちTA6の抗原0.5μg及びTA11の抗原1.0μg)を用いて0、3、6(又は8)週目に3回ワクチン接種した。マウスを、3回目のワクチン接種後6日目に屠殺し、上記のELISPOTにより重複するペプチドプールを使用してpre-S1、pre-S2及びHBsAgタンパク質に対する応答を測定した。同程度の抗HBsAg抗体応答が、2つの製剤により誘導された。
[0072]この実施例は、異なる2つの免疫原性組成物によるワクチン接種後のマウスにおける個々のIgG1/IgG2a比の比較について記載する。第1の組成物は、S、Pre-S1及びPre-S2タンパク質を含む10μg/mL HBsAg並びに水酸化アルミニウムアジュバントとして500μg/mLアルミニウムを含むSci-B-Vacとして公知の市販の予防的ワクチン(表3のTA6)であった。第2の組成物は、2倍高濃度の同じHBsAg(20μg/mL)及びリン酸アルミニウムアジュバントとして500μg/mLアルミニウムを含む本開示の免疫原性組成物(表3においてTA11)であった。Balb/cマウス(n=8)に、ヒト用量の1/20の各免疫原性組成物(即ちTA6の抗原0.5μg及びTA11の抗原1.0μg)を用いて0、3、6週目に3回ワクチン接種した。マウスを、3回目のワクチン接種後6日目に屠殺し、以下の通りにELISAによって抗HBs IgG1及び抗HB IgG2を測定した。
[0077]この実施例は、S、Pre-S1及びPre-S2タンパク質を含む10μg/mL HBsAg及び水酸化アルミニウムアジュバントとして500μg/mLアルミニウムを含むSci-B-Vacとして公知の市販の予防的ワクチン(表3のTA6)、並びに本開示の同じHBsAg免疫原性組成物及びリン酸アルミニウムアジュバントとして500μg/mLアルミニウムを含む異なる3つの用量によるワクチン接種後のマウスにおいてTh1活性を調べる用量範囲研究について記載する。異なる3つの用量は、HBsAg(20μg/mL)(表3のTA11);HBsAg(40μg/mL)(表3のTA10)及びHBsAg(60μg/mL)(表3のTA13)であった。
[0081]本開示の他の実施形態は、本明細書の考慮すべき点又は本明細書に開示される本開示の実施から当業技術者に明らかになろう。本明細書及び例は、典型例としてのみ考慮され、本開示の真の範囲は、以下の特許請求の範囲によって指示されるものとする。本明細書に参照される任意の参照文献の内容は、その全体を参照により本明細書に組み込む。
[0001]本出願は、2018年11月13日に出願の米国特許仮出願第62/760,439号の利益を主張し、その内容を、その全体を参照により本明細書に組み込む。
Claims (15)
- (a)Sタンパク質、Pre-S1タンパク質及びPre-S2タンパク質を含むHBsAg抗原;並びに
(b)リン酸アルミニウムアジュバント
を含む免疫原性組成物であって、前記組成物が、少なくとも20μg/mLのHBsAg抗原を含み、非吸着抗原の量が、少なくとも30%である免疫原性組成物。 - 前記アルミニウムが、500μg/mLの濃度で存在する、請求項1に記載の免疫原性組成物。
- 前記HBsAg抗原が、20μg/mLの濃度で存在する、請求項1又は2に記載の免疫原性組成物。
- 前記HBsAg抗原が、40μg/mLの濃度で存在する、請求項1又は2に記載の免疫原性組成物。
- 前記HBsAg抗原が、60μg/mLの濃度で存在する、請求項1又は2に記載の免疫原性組成物。
- 哺乳動物においてTh1細胞応答の誘導に使用するための、請求項1~5のいずれか一項に記載の免疫原性組成物。
- 対象においてTh1細胞応答を誘導するための薬物を製造するための、請求項1~5のいずれか一項に記載の免疫原性組成物の使用。
- 前記対象がB型肝炎に感染している、請求項7に記載の使用。
- 請求項1~5のいずれか一項に記載の免疫原性組成物及び薬学的に許容できる賦形剤を含む医薬組成物。
- B型肝炎を患っている対象の治療に使用するための、請求項9に記載の医薬組成物。
- 請求項1~5のいずれか一項に記載の免疫原性組成物を投与するステップを含む、哺乳動物においてTh1細胞応答を誘導する方法。
- 請求項1~5のいずれか一項に記載の免疫原性組成物の治療上有効な量を対象に投与するステップを含む、対象のB型肝炎を治療する方法。
- 追加のB型肝炎治療が、対象に前記免疫原性組成物を投与する前、同時、又は後に前記対象に投与される、請求項12に記載の方法。
- 前記追加のB型肝炎治療が、ヌクレオシド阻害剤又はペグ化インターフェロンアルファである、請求項13に記載の方法。
- 前記追加のB型肝炎治療が、ポリメラーゼ阻害剤、RNase H阻害剤、TLRアゴニスト、N-グリコシル化阻害剤、アンチセンスオリゴヌクレオチド、抗B型肝炎抗体、カプシド阻害剤、コアタンパク質阻害剤、コアアッセンブリモジュレーター、S抗原低減剤若しくは隔離剤、核酸ポリマー、cccDNA阻害剤、インターフェロン、免疫モジュレーター又はsiRNAである、請求項13に記載の方法。
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US201862760439P | 2018-11-13 | 2018-11-13 | |
US62/760,439 | 2018-11-13 | ||
PCT/IB2019/001230 WO2020099927A1 (en) | 2018-11-13 | 2019-11-13 | Immunogenic compositions for treatment of hepatitis b |
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US12128100B2 (en) | 2018-11-13 | 2024-10-29 | Variation Biotechnologies Inc. | Immunogenic compositions for treatment of Hepatitis B |
EP3986459A4 (en) * | 2019-06-21 | 2023-07-26 | Variation Biotechnologies Inc. | IMPROVED THERAPEUTIC COMPOSITION CONTAINING HEPATITIS B ANTIGEN HAVING S, PRE-S1 AND PRE-2 PROTEINS, ALUMINUM PHOSPHATE AND ALPHA INTERFERON AND USE IN THE TREATMENT OF HEPATITIS B |
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US5242812A (en) | 1989-02-07 | 1993-09-07 | Bio-Technology General Corp. | Method for production and purification of hepatitis B vaccine |
MA22842A1 (fr) | 1992-03-27 | 1993-10-01 | Smithkline Beecham Biolog | Procede de preparation de compositions de vaccin. |
GB9503863D0 (en) | 1995-02-25 | 1995-04-19 | Smithkline Beecham Biolog | Vaccine compositions |
CN1305527C (zh) * | 2003-11-21 | 2007-03-21 | 薛平 | 乙型肝炎治疗疫苗及其制备方法 |
KR100836745B1 (ko) * | 2007-01-31 | 2008-06-10 | (주)두비엘 | Hbv 백신 및 그의 제조 방법 |
CN102949717A (zh) * | 2012-07-06 | 2013-03-06 | 中国疾病预防控制中心病毒病预防控制所 | 一种含poly I:C佐剂的新型乙肝疫苗制剂 |
CN104043120B (zh) | 2013-03-13 | 2017-05-31 | 南京赛威信生物医药有限公司 | 乙型肝炎疫苗 |
WO2018166298A1 (en) | 2017-03-13 | 2018-09-20 | Fudan University | Immunopotentiator, immunotherapeutic pharmaceutical composition and its preparation and use |
US12128100B2 (en) | 2018-11-13 | 2024-10-29 | Variation Biotechnologies Inc. | Immunogenic compositions for treatment of Hepatitis B |
EP3986459A4 (en) | 2019-06-21 | 2023-07-26 | Variation Biotechnologies Inc. | IMPROVED THERAPEUTIC COMPOSITION CONTAINING HEPATITIS B ANTIGEN HAVING S, PRE-S1 AND PRE-2 PROTEINS, ALUMINUM PHOSPHATE AND ALPHA INTERFERON AND USE IN THE TREATMENT OF HEPATITIS B |
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WO2020099927A1 (en) | 2020-05-22 |
CN113423423A (zh) | 2021-09-21 |
IL283039A (en) | 2021-06-30 |
IL314712A (en) | 2024-10-01 |
BR112021009234A2 (pt) | 2021-09-08 |
MX2021005588A (es) | 2021-08-11 |
IL283039B1 (en) | 2024-09-01 |
KR20210151047A (ko) | 2021-12-13 |
CA3119581A1 (en) | 2020-05-22 |
US20230079703A1 (en) | 2023-03-16 |
EP3880244A4 (en) | 2022-08-17 |
CN113423423B (zh) | 2024-08-13 |
EP3880244A1 (en) | 2021-09-22 |
ZA202103976B (en) | 2023-09-27 |
US12128100B2 (en) | 2024-10-29 |
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