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    • 1. 发明授权
    • Engineering Fc antibody regions to confer effector function
    • 工程化Fc抗体区域以产生效应子功能
    • US08216574B2
    • 2012-07-10
    • US12565911
    • 2009-09-24
    • Jeffrey StavenhagenScott Koenig
    • Jeffrey StavenhagenScott Koenig
    • A61K39/395C07K16/00
    • C07K16/30C07K16/00C07K16/283C07K16/2887C07K16/2896C07K16/32C07K2317/41C07K2317/52C07K2317/72C07K2317/732C07K2317/734C07K2319/30G01N33/574
    • The present invention relates to molecules having a variant Fc region, wherein said variant Fc region comprises at least one amino acid modification relative to a wild-type Fc region. These modified molecules confer an effector function to a molecule, where the parent molecule does not detectably exhibit this effector function. In particular, the molecules of the invention have an increased effector cell function mediated by a FcγR, such as, but not limited to, ADCC. In one embodiment, the variant Fc region binds FcγRIIIA and/or FcγRIIA with a greater affinity, relative to a comparable molecule comprising the wild-type Fc region. The molecules of the invention have particular utility in treatment, prevention or management of a disease or disorder, such as cancer, in a sub-population of patients, wherein the target antigen is expressed at low levels in the target cell population, in particular, in patients refractory to treatment with an existing therapeutic antibody due to the low level of target antigen expression on the cancer or associated cells.
    • 本发明涉及具有变体Fc区的分子,其中所述变体Fc区相对于野生型Fc区包含至少一个氨基酸修饰。 这些修饰的分子赋予分子的效应子功能,其中母体分子不可检测地显示出该效应子功能。 特别地,本发明的分子具有由FcγR介导的增加的效应细胞功能,例如但不限于ADCC。 在一个实施方案中,相对于包含野生型Fc区的可比分子,变体Fc区以更高的亲和力结合FcγRIIIA和/或FcγRIIA。 本发明的分子在患者的亚群中治疗,预防或治疗疾病或病症(例如癌症)具有特别的用途,其中目标抗原在靶细胞群体中以低水平表达,特别是, 在由于癌细胞或相关细胞上的靶抗原表达水平低的现有治疗性抗体治疗难治的患者中。
    • 3. 发明申请
    • Engineering Fc Antibody Regions to Confer Effector Function
    • 工程Fc抗体区域,以实现效应功能
    • US20100196362A1
    • 2010-08-05
    • US12565911
    • 2009-09-24
    • Jeffrey StavenhagenScott Koenig
    • Jeffrey StavenhagenScott Koenig
    • A61K39/395C07K16/00
    • C07K16/30C07K16/00C07K16/283C07K16/2887C07K16/2896C07K16/32C07K2317/41C07K2317/52C07K2317/72C07K2317/732C07K2317/734C07K2319/30G01N33/574
    • The present invention relates to molecules having a variant Fc region, wherein said variant Fc region comprises at least one amino acid modification relative to a wild-type Fc region. These modified molecules confer an effector function to a molecule, where the parent molecule does not detectably exhibit this effector function. In particular, the molecules of the invention have an increased effector cell function mediated by a FcγR, such as, but not limited to, ADCC. In one embodiment, the variant Fc region binds FcγRIIIA and/or FcγRIIA with a greater affinity, relative to a comparable molecule comprising the wild-type Fc region. The molecules of the invention have particular utility in treatment, prevention or management of a disease or disorder, such as cancer, in a sub-population of patients, wherein the target antigen is expressed at low levels in the target cell population, in particular, in patients refractory to treatment with an existing therapeutic antibody due to the low level of target antigen expression on the cancer or associated cells.
    • 本发明涉及具有变体Fc区的分子,其中所述变体Fc区相对于野生型Fc区包含至少一个氨基酸修饰。 这些修饰的分子赋予分子的效应子功能,其中母体分子不可检测地显示出该效应子功能。 特别地,本发明的分子具有由FcγR介导的增加的效应细胞功能,例如但不限于ADCC。 在一个实施方案中,相对于包含野生型Fc区的可比分子,变体Fc区以更高的亲和力结合FcγRIIIA和/或FcγRIIA。 本发明的分子在患者的亚群中治疗,预防或治疗疾病或病症(例如癌症)具有特别的用途,其中目标抗原在靶细胞群体中以低水平表达,特别是, 在由于癌细胞或相关细胞上的靶抗原表达水平低的现有治疗性抗体治疗难治的患者中。
    • 5. 发明授权
    • FcγRIIB specific antibodies and methods of use thereof
    • FcγRIIB特异性抗体及其使用方法
    • US08187593B2
    • 2012-05-29
    • US12167760
    • 2008-07-03
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • A61K39/395A61K39/40A61K39/00C07K16/00
    • C07K16/283A01K2267/0331A61K2039/505C07K16/2896C07K16/32C07K2317/24C07K2317/34C07K2317/732C07K2317/92
    • The present invention relates to antibodies or fragments thereof that specifically bind FcγRIIB, particularly human FcγRIIB, with greater affinity than said antibodies or fragments thereof bind FcγRIIA, particularly human FcγRIIA. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, as a single agent therapy for the treatment, prevention, management, or amelioration of a cancer, preferably a B-cell malignancy, particularly, B-cell chronic lymphocytic leukemia or non-Hodgkin's lymphoma, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in combination with other cancer therapies. The present invention provides pharmaceutical compositions comprising an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in amounts effective to prevent, treat, manage, or ameliorate a cancer, such as a B-cell malignancy, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The invention further provides methods of enhancing the therapeutic effect of therapeutic antibodies by administering the antibodies of the invention to enhance the effector function of the therapeutic antibodies. The invention also provides methods of enhancing efficacy of a vaccine composition by administering the antibodies of the invention with a vaccine composition.
    • 本发明涉及以比所述抗体或其片段更大的亲和力结合FcγRIIA,特别是人FcγRIIA的FcγRIIB特别是人FcγRIIB特异性结合的抗体或其片段。 本发明还包括使用抗FcγRIIB抗体或其抗原结合片段作为治疗,预防,治疗或改善癌症,优选B细胞恶性肿瘤,特别是B细胞恶性肿瘤的单一药物治疗 细胞性慢性淋巴细胞白血病或非霍奇金淋巴瘤,自身免疫性疾病,炎症性疾病,IgE介导的过敏性疾病或其一种或多种症状。 本发明还包括与其他癌症疗法组合的抗FcγRIIB抗体或其抗原结合片段的用途。 本发明提供了包含抗FcγRIIB抗体或其抗原结合片段的药物组合物,其量有效地预防,治疗,治疗或改善诸如B细胞恶性肿瘤,自身免疫病症,炎症性疾病 ,IgE介导的过敏性疾病或其一种或多种症状。 本发明还提供了通过施用本发明的抗体来增强治疗性抗体的效应子功能来增强治疗性抗体的治疗效果的方法。 本发明还提供了通过用疫苗组合物施用本发明的抗体来增强疫苗组合物的功效的方法。
    • 8. 发明申请
    • FcGammaRIIB Specific Antibodies and Methods of Use Thereof
    • US20090076251A1
    • 2009-03-19
    • US12186058
    • 2008-08-05
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • C07K16/28
    • C07K16/283A61K2039/505C07K16/2896C07K16/32C07K2317/24C07K2317/34C07K2317/56C07K2317/565C07K2317/72C07K2317/732
    • The present invention relates to antibodies or fragments thereof that specifically bind FcγRIIB, particularly human FcγRIIB, more particularly the extracellular domain of FcγRIIB with greater affinity than said antibodies or fragments thereof bind FcγRIIA, particularly human FcγRIIA, and block the Fc binding site of FcγRIIB. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, as a single agent therapy for the treatment, prevention, management, or amelioration of a cancer, preferably a B-cell malignancy, particularly, B-cell chronic lymphocytic leukemia or non-Hodgkin's lymphoma, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in combination with other cancer therapies. The present invention provides pharmaceutical compositions comprising an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in amounts effective to prevent, treat, manage, or ameliorate a cancer, such as a B-cell malignancy, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The invention further provides methods of enhancing the therapeutic effect of therapeutic antibodies by administering the antibodies of the invention to enhance the effector function of the therapeutic antibodies. The invention also provides methods of enhancing efficacy of a vaccine composition by administering the antibodies of the invention with a vaccine composition. The invention further provides methods of treating cancer and/or regulating immune complex-mediated cell activation by administering the antibodies of the invention to enhance an immune response. The invention also provides methods of breaking tolerance to an antigen by administering an antigen-antibody complex and an antibody of the invention.
    • 9. 发明申请
    • FcGammaRIIB Specific Antibodies and Methods of Use Thereof
    • US20090074771A1
    • 2009-03-19
    • US12186065
    • 2008-08-05
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • Scott KoenigMaria Concetta VeriNadine TuaillonEzio Bonvini
    • A61K39/395G01N33/53A61P37/02
    • C07K16/283A61K2039/505C07K16/32C07K2317/34C07K2317/41C07K2317/71C07K2317/732C07K2317/76
    • The present invention relates to antibodies or fragments thereof that specifically bind FcγRIIB, particularly human FcγRIIB, more particularly the extracellular domain of FcγRIIB with greater affinity than said antibodies or fragments thereof bind FcγRIIA, particularly human FcγRIIA, and block the Fc binding site of FcγRIIB. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, as a single agent therapy for the treatment, prevention, management, or amelioration of a cancer, preferably a B-cell malignancy, particularly, B-cell chronic lymphocytic leukemia or non-Hodgkin's lymphoma, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in combination with other cancer therapies. The present invention provides pharmaceutical compositions comprising an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in amounts effective to prevent, treat, manage, or ameliorate a cancer, such as a B-cell malignancy, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The invention further provides methods of enhancing the therapeutic effect of therapeutic antibodies by administering the antibodies of the invention to enhance the effector function of the therapeutic antibodies. The invention also provides methods of enhancing efficacy of a vaccine composition by administering the antibodies of the invention with a vaccine composition. The invention further provides methods of treating cancer and/or regulating immune complex-mediated cell activation by administering the antibodies of the invention to enhance an immune response. The invention also provides methods of breaking tolerance to an antigen by administering an antigen-antibody complex and an antibody of the invention.