Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: The invention is directed to a molecule comprising an albumin binding domain (ABD) and an FcRn binding moiety, wherein said molecule has enhanced pharmacologic properties in vivo.

Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which alters the binding of Fc to one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more Fc?R and/or C1q. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.

Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which alters the binding of Fc to one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more Fc?R and/or C1q. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.

Abstract: Stabilized antibodies directed to Angiopoeitin-2 and uses of such antibodies are described. Nucleic acid and amino acid sequences, hybridomas or other cell lines for expressing such antibodies are also provided.

Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: Stabilized antibodies directed to Angiopoeitin-2 and uses of such antibodies are described. Nucleic acid and amino acid sequences, hybridomas or other cell lines for expressing such antibodies are also provided.

Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: The present invention provides chimeric and humanized versions of anti-CD19 mouse monoclonal antibodies. The invention further relates to pharmaceutical compositions, immunotherapeutic compositions, and methods using therapeutic antibodies that bind to the human CD19 antigen and that may mediate ADCC, CDC, and/or apoptosis for the treatment of B cell diseases and disorders, such as, but not limited to, B cell malignancies, for the treatment and prevention of autoimmune disease, and for the treatment and prevention of graft-versus-host disease (GVHD), humoral rejection, and post-transplantation lymphoproliferative disorder in human transplant recipients.

Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: The invention provides method for therapeutic protein drug development that incorporates therapeutic and/or formulation and/or manufacturing considerations in the early screening process. The approach involves screening a plurality of different variants of a domain that have been determined to have the desired therapeutic property to identify one or more variants that have desired therapeutic and/or formulation characteristics, and constructing the full multidomain proteins using the identified domain variants. The present invention also provides a method for determining the shelf life of multidomain proteins in formulations. The method comprises determining a thermal denaturation and/or renaturation curve of a domain of the protein whose unfolding leads to aggregation of the protein in a solution. The method evaluates the shelf life of the multidomain protein based on the denaturation/renaturation curve.

Abstract: The invention is directed to a molecule comprising an albumin binding domain (ABD) and an FcRn binding moiety, wherein said molecule has enhanced pharmacologic properties in vivo.

Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which alters the binding of Fc to one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more Fc?R and/or C1q. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.

Abstract: The present invention provides human anti-IL-6 antibodies with extended in vivo half-life. The invention further relates to pharmaceutical compositions, therapeutic compositions, and methods using therapeutic antibodies that bind to IL-6 and that has an extended in vivo half-life for the treatment and prevention of IL-6 mediated diseases and disorders, such as, but not limited to, inflammatory diseases and disorders, autoimmune diseases and disorders and tumors.

Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.

Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which alters the binding of Fc to one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more Fc?R and/or CIq. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.

Abstract: The present invention provides methods for preventing, managing, treating and/or ameliorating a Respiratory Syncytial Virus (RSV) infection (e.g., acute RSV disease, or a RSV upper respiratory tract infection (URI) and/or lower respiratory tract infection (LRI)), otitis media (preferably, stemming from, caused by or associated with a RSV infection, such as a RSV URI and/or LRI), and/or a symptom or respiratory condition relating thereto (e.g., asthma, wheezing, and/or reactive airway disease (RAD)) in a subject, comprising administering to said human an effective amount of one or more antibodies that immunospecifically bind to one or more RSV antigens with a high affinity and/or high avidity. In some embodiments, one or more antibodies comprise a modified IgG constant domain, or FcRn-binding fragment thereof resulting in longer in vivo serum half-life.

Abstract: The present invention provides crystalline forms of a human IgG Fc variant comprising one or more amino acid residues that provides for enhanced effector function, methods of obtaining such crystals and high-resolution X-ray diffraction structures and atomic structure coordinates. The present invention also provides machine readable media embedded with the three-dimensional atomic structure coordinates of the human IgG Fc variant and methods of using them. The present invention also provides human IgG Gc variants with reduced binding to at least one Fc?R.

Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which improves stability and/or alters the binding of Fc to one or more metal ion and/or one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that are less susceptible to metal ion-mediated cleavage and/or have modified binding affinity to one or more Fc?R and/or C1q. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. Furthermore, the modified hinge of the Fc variants retains a similar flexibility to the wild type hinge. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.