Abstract: Described herein are bispecific antibodies that bind to plasma kallikrein (pKal) and Factor XII and methods of producing and using such bi-specific antibodies for treating diseases or disorders associated with the contact system, e.g., hereditary angioedema or thrombosis.

Abstract: The present disclosure provides, among other things, a recombinant adeno-associated viral (rAAV) vector encoding an agent that inhibits the proteolytic activity of plasma kallikrein. The disclosure also provides, a recombinant adeno-associated viral (rAAV) vector encoding an anti/plasma kallikrein antibody heavy drain and an anti-plasma kallikrein antibody light chain.

Abstract: Disclosed herein are antibodies capable of binding to plasma kallikrein and inhibit its activity. Such antibodies interact with one or more critical residues in the catalytic domain of the plasma kallikrein. The antibodies may also contain specific heavy chain complementarity determining region 3 (CDRs) motifs and optionally specific residues at certain positions within both the heavy chain variable region and the light chain variable region.

Abstract: Methods and assays for determining the activation level of the plasma kallikrein (pKal) system and the uses thereof for assessing the activity of pKal modulators on the pKal system.

Abstract: Described herein are bispecific antibodies that bind to plasma kallikrein (pKal) and Factor XII and methods of producing and using such bi-specific antibodies for treating diseases or disorders associated with the contact system, e.g., hereditary angioedema or thrombosis.

Abstract: Methods and assays for determining the activation level of the plasma kallikrein (pKal) system and the uses thereof for assessing the activity of pKal modulators on the pKal system.

Abstract: The present disclosure provides, among other things, a recombinant adeno-associated viral (rAAV) vector comprising a codon-optimized nucleotide sequence encoding an agent that inhibits the proteolytic activity of plasma kallikrein. The disclosure also provides, a recombinant adeno-associated viral (rAAV) vector encoding an anti-plasma kallikrein antibody heavy chain and an anti-plasma kallikrein antibody light chain.

Abstract: The present disclosure provides methods of evaluating a subject, e.g., a subject at risk for or suffering from a pKal-mediated or bradykinin-mediated disorder, based on values (e.g., percentages) of intact and/or cleaved kininogen in a sample of the subject. Provided methods permit analysis of patients with plasma kallikrein-mediated angioedema (KMA), or other diseases mediated by pKal useful in the evaluation and treatment. Such methods can involve the use of a detection agent that preferentially binds cleaved kininogen or intact kininogen.

Abstract: Disclosed herein are antibodies capable of binding to plasma kallikrein and inhibit its activity. Such antibodies interact with one or more critical residues in the catalytic domain of the plasma kallikrein. The antibodies may also contain specific heavy chain complementarity determining region 3 (CDRs) motifs and optionally specific residues at certain positions within both the heavy chain variable region and the light chain variable region.

Abstract: The present disclosure provides methods of evaluating a subject, e.g., a subject at risk for or suffering from a pKal-mediated or bradykinin-mediated disorder, based on values (e.g., percentages) of intact and/or cleaved kininogen in a sample of the subject. Provided methods permit analysis of patients with plasma kallikrein-mediated angioedema (KMA), or other diseases mediated by pKal useful in the evaluation and treatment. Such methods can involve the use of a detection agent that preferentially binds cleaved kininogen or intact kininogen.

Abstract: Provided herein are plasma kallikrein binding proteins such as antibodies binding to active plasma kallikrein and methods of using such proteins in treating hereditary angioedema.

Abstract: Disclosed herein are anti-Factor XIIa antibodies and methods of using such for treating diseases associated with Factor XII, including diseases associated with contact system activation, plasma prekallikrein signaling (e.g., hereditary angioedema), and ocular diseases.

Abstract: Provided herein are plasma kallikrein binding proteins such as antibodies binding to active plasma kallikrein and methods of using such proteins in treating hereditary angioedema.

Abstract: Disclosed herein are anti-Factor XIIa antibodies and methods of using such for treating diseases associated with Factor XII, including diseases associated with contact system activation, plasma prekallikrein signaling (e.g., hereditary angioedema), and ocular diseases.

Abstract: Disclosed herein are antibodies capable of binding to plasma kallikrein and inhibit its activity. Such antibodies interact with one or more critical residues in the catalytic domain of the plasma kallikrein. The antibodies may also contain specific heavy chain complementarity determining region 3 (CDRs) motifs and optionally specific residues at certain positions within both the heavy chain variable region and the light chain variable region.

Abstract: Disclosed herein are anti-Factor Xlla antibodies and methods of using such for treating diseases associated with Factor XII, including diseases associated with contact system activation, plasma prekallikrein signaling (e.g., hereditary angioedema), and ocular diseases.

Abstract: Described herein are bispecific antibodies that bind to plasma kallikrein (pKal) and Factor XII and methods of producing and using such bi-specific antibodies for treating diseases or disorders associated with the contact system, e.g., hereditary angioedema or thrombosis. One aspect of the present disclosure is a bispecific antibody, comprising: a first polypeptide that comprises a light chain of a first antibody, the light chain comprising a light chain variable region (VL) and a light chain constant region (CL) (e.g., a kappa light chain or a lambda light chain); and a second polypeptide that comprises a heavy chain of the first antibody, the heavy chain comprising a heavy chain variable region (VH) and a heavy chain constant region (CH).

Abstract: Provided herein are plasma kallikrein binding proteins such as antibodies binding to active plasma kallikrein and methods of using such proteins in treating hereditary angioedema.

Abstract: Methods and assays for determining the activation level of the plasma kallikrein (pKal) system and the uses thereof for assessing the activity of pKal modulators on the pKal system.

Abstract: Disclosed herein are antibodies capable of binding to plasma kallikrein and inhibit its activity. Such antibodies interact with one or more critical residues in the catalytic domain of the plasma kallikrein. The antibodies may also contain specific heavy chain complementarity determining region 3 (CDRs) motifs and optionally specific residues at certain positions within both the heavy chain variable region and the light chain variable region.