47 results about "Von willebrand" patented technology

The present invention relates to antibodies that bind to a portion of the Von Willebrand's factor (VWC) domain of connective tissue growth factor (CTGF). The antibodies are particularly directed to regions of CTGF involved in biological activities associated with fibrosis. The invention also relates to methods of using the antibodies to treat disorders associated with CTGF including localized and systemic fibrotic disorders including those of the lung, liver, heart, skin, and kidney.

The present invention is directed to liquid, aqueous pharmaceutical compositions containing Factor VII polypeptides, and methods for preparing and using such compositions, as well as vials containing such compositions, and the use of such compositions in the treatment of a Factor VII-responsive syndrome, e.g., bleeding disorders, including those caused by clotting Factor deficiencies (e.g. haemophilia A, haemophilia B, coagulation Factor VII deficiency); by thrombocytopenia or von Willebrand's disease, or by clotting Factor inhibitors, and intra cerebral haemorrhage, or excessive bleeding from any cause. The preparations may also be administered to patients in association with surgery or other trauma or to patients receiving anticoagulant therapy. More particularly, the invention relates to liquid compositions stabilised against chemical and / or physical degradation. The main embodiment is represented by a liquid, aqueous pharmaceutical composition comprising a Factor VII polypeptide (i); a buffering agent (ii) suitable for keeping pH in the range of from about 4.0 to about 9.0; at least one metal-containing agent (iii), wherein said metal is selected from the group consisting of first transition series metals of oxidation state +II, except zinc, such as chromium, manganese, iron, cobalt, nickel, and copper; and a non-ionic surfactant (iv).

Use of plasma proteins concentrates containing VWF with a high proportion of high molecular weight multimers prevents a bleeding diathesis and reduces pre-, peri- and postoperative blood loss in acquired Von Willebrand syndromes such as in cardiovascular diseases requiring surgical procedures, especially those requiring extracorporeal circulation.

This invention relates to a process for the preparation of a very high purity von Willebrand factor concentrate from a biological fraction containing von Willebrand factor, including a separation by anion exchange chromatography using a vinyl polymer support of weak base type, the separation comprising the steps of loading of the chromatographic support with the fraction containing von Willebrand factor, previously equilibrated with a suitable buffer, with a predetermined flowrate allowing the retention of the von Willebrand factor, washing of the support with an acidic buffer with a flowrate higher than the flowrate of the step a) until the not-retained proteins and the contaminants are removed, flushing and equilibrating of the chromatographic support with the buffer and using the flowrate of the step a), and elution of the von Willebrand factor by increasing of the ionic strength of the step c). The invention also relates to a von Willebrand factor concentrate for therapeutic use likely to be obtained by implementing the process wherein the rate of Factor VIII:C / FvW:RCo is less than 0.06%.

For the first time, the present invention provides antibodies that enhance the generation of activated blood coagulation factor VIII. The antibodies enhance the cleavage of blood coagulation factor VIII at the Arg of position 372 and suppress the cleavage at the Arg of position 336 by recognizing and binding to the A2 domain of blood coagulation Factor VIII. Such antibodies are expected to be useful in preventing or treating diseases that develop or progress due to decrease or loss of the blood coagulation factor VIII activity, for example, hemophilia A, acquired hemophilia, and von Willebrand's disease.

The present invention relates, in general, to development of non-human transgenic animals expressing a human blood clotting factor, such as Factor VIII, Factor VII, Factor IX and von Willebrand factor. The invention further provides methods of detecting immunogenic events against human blood clotting factor using the transgenic animals described.

The present invention relates, in general, to receptors and to platelet aggregation and, in particular, to a method of inhibiting platelet aggregation using an aptamer that binds to and inhibits the activity of a receptor, such as glycoprotein IIb / IIIa (gpIIb / IIIa), and to aptamers suitable for use in such a method. The invention also relates to antidotes to antiplatelet agents and to methods of using such antidotes to reverse aptamer-induced platelet inhibition. The invention further relates to von Willebrand Factor (VWF) inhibitors, and antidotes therefore, and to methods of using same.

The invention provides new uses for specific binders to the A1 domain of the von Willebrand Factor (vWF), in particular the use in patients with stable angina undergoing elective percutaneous coronary intervention. Furthermore, dosing schedules and use of suitable assays such as RIPA and RICO in the particular disease settings are provided.

Provided herein are particles comprising a polymer substrate comprising one or more hyaluronic acid chains; and two or more peptide moieties bound directly to each hyaluronic acid chain. In some embodiments, the two or more peptide moieties comprising collagen-binding peptide (CBP) and von Willebrand binding peptide (VBP). The particles can be utilized in, e.g., methods of hemostatic treatment.

The invention provides a transgenic non-human animal expressing von Willebrand Factor A1 protein containing at least one mutation selected from the group consisting of: 1263P>S, 1269N>D, 1274K>R, 1287M>R, 1302G>D, 1308H>R, 1313R>W, 1314I>V, 1326R>H, 1329L>I, 1330E>G, 1333A>D, 1344T>A, 1347I>V, 1350T>A, 1370G>S, 1379H>R, 1381T>A, 1385T>M 1391P>Q, 1394A>S, 1397L>F, 1421S>N, 1439L>V, 1442G>S, 1449R>Q, 1466A>P, 1469Q>L, 1472Q>H, 1473V>M, 1475H>Q, 1479S>G, and any combination thereof.