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公开(公告)号：US11208633B2
公开(公告)日：2021-12-28
申请号：US16704744
申请日：2019-12-05
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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2.发明申请公开(公告)号：US20200254081A1
公开(公告)日：2020-08-13
申请号：US16647124
申请日：2018-09-14
Applicant: Pfizer Inc.
Inventor： Kathrin Ute Jansen , Annaliesa Sybil Anderson , Robert G.K. Donald , Michael James Flint , Nicholas Randolph Everard Kitchin , Justin Keith Moran , Louise Pedneault , Michael W. Pride , Mark Edward Ruppen , Christopher Frederick Webber
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a Clostridium difficile toxoid A and/or a C. difficile toxoid B, and methods of use thereof. In another aspect, the invention relates to a method for eliciting an immune response in a human against a C. difficile infection. The method includes administering to the human an effective dose of a composition, which includes a C. difficile toxoid, wherein the composition is administered at least two times, wherein the second administration is about 30 days after the first administration, and wherein the immune response against C. difficile toxin A and/or toxin B is sustained.
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3.发明申请公开(公告)号：US20150291940A1
公开(公告)日：2015-10-15
申请号：US14436875
申请日：2013-10-07
Applicant: PFIZER INC.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
IPC: C12N9/10
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
Abstract translation: 一方面，本发明涉及包含突变型艰难梭菌毒素A和/或突变型艰难梭菌毒素B的免疫原性组合物。突变毒素可以包括具有至少一个突变的葡糖基转移酶结构域和至少具有至少一个突变的半胱氨酸蛋白酶结构域 一个突变，相对于相应的野生型艰难梭菌毒素。 突变毒素可以包括至少一个化学交联的氨基酸。 另一方面，本发明涉及用于培养艰难梭菌和产生艰难梭菌毒素的方法和组合物。
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公开(公告)号：US11952597B2
公开(公告)日：2024-04-09
申请号：US16922952
申请日：2020-07-07
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
CPC classification number: C12N9/1051 , C07K14/33 , C12N1/20
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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公开(公告)号：US20210024903A1
公开(公告)日：2021-01-28
申请号：US16922952
申请日：2020-07-07
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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Patent Agency Ranking
公开(公告)号：US10982198B2
公开(公告)日：2021-04-20
申请号：US16104938
申请日：2018-08-19
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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公开(公告)号：US10787652B2
公开(公告)日：2020-09-29
申请号：US14436875
申请日：2013-10-07
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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公开(公告)号：US20250002875A1
公开(公告)日：2025-01-02
申请号：US18593348
申请日：2024-03-01
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G. K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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9.发明公开公开(公告)号：US20240216495A1
公开(公告)日：2024-07-04
申请号：US18446883
申请日：2023-08-09
Applicant: Pfizer Inc.
Inventor： Kathrin Ute Jansen , Annaliesa Sybil Anderson , Robert G.K. Donald , Michael James Flint , Nicholas Randolph Everard Kitchin , Justin Keith Moran , Louise Pedneault , Michael W. Pride , Mark Edward Ruppen , Christopher Frederick Webber
CPC classification number: A61K39/08 , A61K9/19 , A61K2039/545
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a Clostridium difficile toxoid A and/or a C. difficile toxoid B, and methods of use thereof. In another aspect, the invention relates to a method for eliciting an immune response in a human against a C. difficile infection. The method includes administering to the human an effective dose of a composition, which includes a C. difficile toxoid, wherein the composition is administered at least two times, wherein the second administration is about 30 days after the first administration, and wherein the immune response against C. difficile toxin A and/or toxin B is sustained.
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公开(公告)号：US20200165582A1
公开(公告)日：2020-05-28
申请号：US16704744
申请日：2019-12-05
Applicant: Pfizer Inc.
Inventor： Jason Arnold Lotvin , Annaliesa Sybil Anderson , Robert G.K. Donald , Michael James Flint , Narender Kumar Kalyan , Kathrin Ute Jansen , Maninder K. Sidhu , Justin Keith Moran , Mark Edward Ruppen , Weiqiang Sun
Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. The mutant toxin may include a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to methods and compositions for use in culturing Clostridium difficile and in producing C. difficile toxins.
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