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51.发明申请GROUP B STREPTOCOCCUS POLYSACCHARIDE-PROTEIN CONJUGATES, METHODS FOR PRODUCING CONJUGATES, IMMUNOGENIC COMPOSITIONS COMPRISING CONJUGATES, AND USES THEREOF 审中-公开B组STR多糖聚糖 - 蛋白质结合体，生产结合物的方法，包含结合物的免疫组合物及其用途公开(公告)号：US20160324950A1
公开(公告)日：2016-11-10
申请号：US15144884
申请日：2016-05-03
Applicant: Pfizer Inc.
Inventor： Annaliesa Sybil Anderson , Amardeep Singh Bhupender Bhalla , Robert G.K. Donald , Jianxin Gu , Kathrin Ute Jansen , Rajesh Kumar Kainthan , Lakshmi Khandke , Jin-Hwan Kim , Paul Liberator , Avvari Krishna Prasad , Mark Edward Ruppen , Ingrid Lea Scully , Suddham Singh , Cindy Xudong Yang
CPC classification number: A61K39/092 , A61K39/39 , A61K39/40 , A61K47/10 , A61K47/26 , A61K2039/505 , A61K2039/55 , A61K2039/55505 , A61K2039/55566 , A61K2039/55577 , A61K2039/6037 , A61K2039/70 , C07K16/1275 , C07K16/44 , Y02A50/484
Abstract: The invention relates to immunogenic polysaccharide-protein conjugates comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), and a carrier protein, wherein the CP is selected from the group consisting of serotypes Ia, Ib, II, III, IV, V, VI, VII, VIII, and IX, and wherein the CP has a sialic acid level of greater than about 60%. The invention also relates to methods of making the conjugates and immunogenic compositions comprising the conjugates. The invention also relates to immunogenic compositions comprising polysaccharide-protein conjugates, wherein the conjugates comprise a CP from GBS serotype IV and at least one additional serotype. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
Abstract translation: 本发明涉及免疫原性多糖 - 蛋白质缀合物，其包含通常称为B族链球菌（GBS）的无乳链球菌的荚膜多糖（CP）和载体蛋白，其中CP选自血清型Ia，Ib ，II，III，IV，V，VI，VII，VIII和IX，并且其中CP具有大于约60％的唾液酸水平。 本发明还涉及制备缀合物和包含缀合物的免疫原性组合物的方法。 本发明还涉及包含多糖 - 蛋白质缀合物的免疫原性组合物，其中缀合物包含来自GBS血清型IV的CP和至少一种另外的血清型。 本发明还涉及使用本文公开的组合物在受试者中诱导免疫应答的方法，所述方法用于针对GBS和/或用于减少或预防受试者的侵袭性GBS疾病。 所得抗体可用于通过被动免疫治疗来治疗或预防GBS感染。
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公开(公告)号：US20240000912A1
公开(公告)日：2024-01-04
申请号：US18034239
申请日：2021-11-01
Applicant: Pfizer Inc.
Inventor： Annaliesa Sybil Anderson , Seema Shridhar Gangolli , Kathrin Ute Jansen , Avvari Krishna Prasad , Michael William Pride , Ingrid Lea Scully , Wendy Jo Watson
CPC classification number: A61K39/092 , A61P31/04 , A61K2039/70
Abstract: An object of the present invention is to provide immunogenic compositions for protection against S. pneumoniae, in particular against S. pneumoniae serogroup 15, while limiting the number of conjugates. The present invention therefore relates to new immunogenic compositions for use in pneumococcal vaccines and to vaccination of human subjects, in particular infants and elderly, against pneumococcal infections using said immunogenic compositions.
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公开(公告)号：US11723965B2
公开(公告)日：2023-08-15
申请号：US17395108
申请日：2021-08-05
Applicant: PFIZER INC.
Inventor： Jianxin Gu , Jin-hwan Kim , Avvari Krishna Prasad , Yu-ying Yang
IPC: A61K39/095 , A61K47/64 , A61K39/09 , A61K45/06 , A61K39/00
CPC classification number: A61K39/095 , A61K39/092 , A61K45/06 , A61K47/64 , A61K47/646 , A61K47/6415 , A61K2039/6037 , A61K2039/6068 , A61K2039/627
Abstract: The invention provides eTEC linked glycoconjugates comprising a saccharide covalently conjugated to a carrier protein through a (2-((2-oxoethyl)thio)ethyl)carbamate (eTEC) spacer, immunogenic compositions comprising such glycoconjugates, and methods for the preparation and use of such glycoconjugates and immunogenic compositions.
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公开(公告)号：US11603384B2
公开(公告)日：2023-03-14
申请号：US17400938
申请日：2021-08-12
Applicant: Pfizer Inc.
Inventor： Mingming Han , Rajesh Kumar Kainthan , Jin-Hwan Kim , Avvari Krishna Prasad
IPC: C07K1/107 , A61K39/095 , C07K14/34 , C07K14/22 , C07K14/315 , A61K39/09 , A61K47/64 , C07H3/06 , A61K39/00
Abstract: The present disclosure relates generally to methods of preparing glycoconjugates containing a saccharide conjugated to a carrier protein by use of stable nitroxyl radical related agent/oxidant as an oxidizing agent, to immunogenic compositions comprising such glycoconjugates, and to methods for the use of such glycoconjugates and immunogenic compositions.
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公开(公告)号：US20220378897A1
公开(公告)日：2022-12-01
申请号：US17814281
申请日：2022-07-22
Applicant: Pfizer Inc.
Inventor： Jianxin Gu , Rajesh Kumar Kainthan , Jin-Hwan Kim , Avvari Krishna Prasad , Yu-Ying Yang
IPC: A61K39/09 , A61K39/385 , A61K39/39
Abstract: The invention relates to activated Streptococcus pneumoniae serotype 10A, 22F or 33F polysaccharides and processes for their preparation. The invention also relates to immunogenic conjugates comprising Streptococcus pneumoniae serotype 10A, 22F or 33F polysaccharides covalently linked to a carrier protein, processes for their preparation and immunogenic compositions and vaccines comprising them.
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Patent Agency Ranking
公开(公告)号：US20220096619A1
公开(公告)日：2022-03-31
申请号：US17395108
申请日：2021-08-05
Applicant: PFIZER INC.
Inventor： Jianxin Gu , Jin-hwan Kim , Avvari Krishna Prasad , Yu-ying Yang
IPC: A61K39/095 , A61K47/64 , A61K39/09 , A61K45/06
Abstract: The invention provides eTEC linked glycoconjugates comprising a saccharide covalently conjugated to a carrier protein through a (2-((2-oxoethyl)thio)ethyl)carbamate (eTEC) spacer, immunogenic compositions comprising such glycoconjugates, and methods for the preparation and use of such glycoconjugates and immunogenic compositions.
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57.发明授权公开(公告)号：US11160855B2
公开(公告)日：2021-11-02
申请号：US15286696
申请日：2016-10-06
Applicant: Pfizer Inc.
Inventor： Emilio Anthony Emini , Wendy Jo Watson , Avvari Krishna Prasad , Mingming Han , Jin-Hwan Kim , Jianxin Gu , Yu-ying Yang , Rajesh Kumar Kainthan , David Cooper , Michael William Pride , Kathrin Ute Jansen
Abstract: The present invention relates to new immunogenic compositions comprising conjugated Streptococcus pneumoniae capsular saccharide antigens (glycoconjugates) and uses thereof. Immunogenic compositions of the present invention will typically comprise at least one glycoconjugate from a S. pneumoniae serotype not found in PREVNAR®, SYNFLORIX® and/or PREVNAR 13®. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumoccocal infections using said novel immunogenic compositions.
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公开(公告)号：US10918708B2
公开(公告)日：2021-02-16
申请号：US16133021
申请日：2018-09-17
Applicant: Pfizer Inc.
Inventor： Jianxin Gu , Rajesh Kumar Kainthan , Jin-Hwan Kim , Avvari Krishna Prasad , Yu-Ying Yang
IPC: A61K39/09 , A61K39/385 , A61K39/39 , A61K39/00
Abstract: The invention relates to activated Streptococcus pneumoniae serotype 10A, 22F or 33F polysaccharides and processes for their preparation. The invention also relates to immunogenic conjugates comprising Streptococcus pneumoniae serotype 10A, 22F or 33F polysaccharides covalently linked to a carrier protein, processes for their preparation and immunogenic compositions and vaccines comprising them.
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公开(公告)号：US20200368340A1
公开(公告)日：2020-11-26
申请号：US16984499
申请日：2020-08-04
Applicant: Pfizer Inc.
Inventor： Annaliesa Sybil Anderson , Leena Shriram Bagle , Amardeep Singh Bhupender Bhalla , Miguel Angel Garcia , Lei Hu , Lakshmi Khandke , Avvari Krishna Prasad , Cindy Xudong Yang
Abstract: The invention relates to immunogenic compositions comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), conjugated to a carrier protein, and optionally including an aluminum-based adjuvant. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
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公开(公告)号：US10751402B2
公开(公告)日：2020-08-25
申请号：US15800373
申请日：2017-11-01
Applicant: Pfizer Inc.
Inventor： Annaliesa Sybil Anderson , Leena Shriram Bagle , Amardeep Singh Bhupender Bhalla , Miguel Angel Garcia , Lei Hu , Lakshmi Khandke , Avvari Krishna Prasad , Cindy Xudong Yang
Abstract: The invention relates to immunogenic compositions comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), conjugated to a carrier protein, and optionally including an aluminum-based adjuvant. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
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