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

IPC: A61K39/08 ,  A61K9/19

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.

公开(公告)号：US20190142922A1

公开(公告)日：2019-05-16

申请号：US16245378

申请日：2019-01-11

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

IPC: A61K39/09 ,  A61K39/40 ,  A61K47/26 ,  C07K16/12 ,  C07K16/44 ,  A61K47/10 ,  A61K39/39

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.

公开(公告)号：US10238732B2

公开(公告)日：2019-03-26

申请号：US15896871

申请日：2018-02-14

Applicant: Pfizer Inc.

Inventor： Ye Che ,  Philip Ralph Dormitzer ,  Alexey Vyacheslavovich Gribenko ,  Luke David Handke ,  Avvari Krishna Prasad ,  Xiayang Qiu ,  Mark Edward Ruppen ,  Xi Song ,  Kena Anne Swanson ,  Srinivas Kodali ,  Xin Xu ,  KariAnn Sweeney Efferen ,  Ping Cai ,  Kristin Rachael Tompkins ,  Lorna del Pilar Nunez

IPC: A61K39/155 ,  C07K14/135 ,  C12N15/01 ,  C07K14/005 ,  C12N7/00 ,  A61K39/12 ,  A61K39/00

Abstract: The present disclosure relates to RSV F protein mutants, nucleic acids or vectors encoding a RSV F protein mutant, compositions comprising a RSV F protein mutant or nucleic acid, and uses of the RSV F protein mutants, nucleic acids or vectors, and compositions.

公开(公告)号：US20180177864A1

公开(公告)日：2018-06-28

申请号：US15896871

申请日：2018-02-14

Applicant: Pfizer Inc.

Inventor： Ye Che ,  Philip Ralph Dormitzer ,  Alexey Vyacheslavovich Gribenko ,  Luke David Handke ,  Avvari Krishna Prasad ,  Xiayang Qiu ,  Mark Edward Ruppen ,  Xi Song ,  Kena Anne Swanson ,  Srinivas Kodali ,  Xin Xu ,  KariAnn Sweeney Efferen ,  Ping Cai ,  Kristin Rachael Tompkins ,  Lorna del Pilar Nunez

IPC: A61K39/155 ,  A61K39/12

CPC classification number: A61K39/155 ,  A61K39/12 ,  A61K2039/575 ,  C07K14/005 ,  C07K2319/02 ,  C07K2319/21 ,  C07K2319/22 ,  C07K2319/40 ,  C07K2319/70 ,  C07K2319/735 ,  C12N7/00 ,  C12N2760/18522 ,  C12N2760/18534 ,  C12N2760/18571

Abstract: The present disclosure relates to RSV F protein mutants, nucleic acids or vectors encoding a RSV F protein mutant, compositions comprising a RSV F protein mutant or nucleic acid, and uses of the RSV F protein mutants, nucleic acids or vectors, and compositions.

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

IPC: A61K39/09 ,  A61K39/40 ,  A61K47/10 ,  A61K39/39 ,  A61K47/26

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。