Blood Coagulation Factors And Fibrin, E.g., Thromboplastin, Etc. Patents (Class 530/381)
  • Patent number: 6180596
    Abstract: A method for inhibiting PLA2 or suppressing the activity of a PLA2 stimulator in a body fluid of an animal with lung disease involves adding Annexin I, Annexin VIII or a mixture thereof to the body fluid.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: January 30, 2001
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Francis H. C. Tsao
  • Patent number: 6177059
    Abstract: A complex comprising a lipid and a conjugate of GPIb and lipid having a functional group, and use thereof. The GPIb-lipid complex of the present invention is extremely useful as a platelet substitute, a pharmaceutical agent for the prophylaxis and treatment of angiopathy, vascular damages and thrombosis, a diagnostic for vWF deficiency and the like, a biological or medical reagent, a reagent for screening platelet aggregation suppressant or antithrombosis, and the like. The GPIb-lipid complex of the present invention is also useful as a diagnostic for finding the location of vascular lesion or thrombus formation, or a therapeutic agent therefor, since it accumulates at vascular lesions.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: January 23, 2001
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Hiroshi Matsuda, Kaeko Kamide, Yasuo Amatsuji, Takashi Imagawa, Yasuo Ikeda, Mitsuru Murata
  • Patent number: 6174721
    Abstract: Chimeric proteins possessing Kunitz-type domain 1 of TFPI-2 and Kunitz-type domain 2 of TFPI are disclosed, as are muteins of TFPI and TFPI-2. Nucleic acid sequences, expression vectors and transformed host cells encoding and capable of producing the disclosed chimeric proteins and muteins are also disclosed. Finally, methods for prevention and treatment of septic shock using the chimeric proteins and muteins are disclosed.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: January 16, 2001
    Assignee: Chiron Corporation
    Inventors: Michael A. Innis, Abla A. Creasey
  • Patent number: 6168789
    Abstract: The catalytic active site of Factor VII is modified to produce a compound which effectively interrupts the blood coagulation cascade. The modifications render Factor VIIa substantially unable to activate plasma Factors X or IX. Pharmaceutical compositions of the modified Factor VII are used to treat a variety of coagulation-related disorders, including platelet deposition, vascular thrombosis, ischemic reperfusion, acute closure of a coronary artery, vascular restenosis secondary to balloon angioplasty, endarterectomy, reductive atherectomy, stent placement, laser therapy or rotablation.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: January 2, 2001
    Assignees: ZymoGenetics, Inc., Novo Nordisk A/S
    Inventors: Kathleen L. Berkner, Lars Christian Petersen, Charles E. Hart, Ulla Hedner, Claus Bregengaard
  • Patent number: 6160097
    Abstract: A process is described for reactivating purified membrane proteins in which a mixture composed of membrane protein, a phospholipid and a detergent is frozen and subsequently thawed.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: December 12, 2000
    Assignee: Dade Behring Marburg GmbH
    Inventor: Norbert F. Zander
  • Patent number: 6156321
    Abstract: The invention embodies the surprising discovery that Tissue Factor (TF) compositions and variants thereof specifically localize to the blood vessels within a vascularized tumor following systemic administration. The invention therefore provides methods and compositions comprising coagulant-deficient Tissue Factor for use in effecting specific coagulation and for use in tumor treatment. The TF compositions and methods of present invention may be used alone, as TF conjugates with improved half-life, or in combination with other agents, such as conventional chemotherapeutic drugs, targeted immunotoxins, targeted coaguligands, and/or in combination with Factor VIIa (FVIIa) or FVIIa activators.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 5, 2000
    Assignee: Board Of Regents, The University of Texas System
    Inventors: Philip E. Thorpe, Steven W. King, Boning Gao
  • Patent number: 6156734
    Abstract: A method of treatment for human patients with an acquired hypercoagulable state or acquired protein C deficiency associated with sepsis, purpura fulminans, meningococcal sepsis, bone marrow and other transplantations, severe burns, pregnancy, major surgery, severe trauma, or ARDS, which comprises administering activated protein C providing a highly selective therapeutic agent with a low potential for causing bleeding complications.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: December 5, 2000
    Assignee: Eli Lilly and Company
    Inventors: Brian William Grinnell, Daniel Lawrence Hartman, Sau-Chi Betty Yan
  • Patent number: 6132730
    Abstract: The invention embodies the surprising discovery that Tissue Factor (TF) compositions and variants thereof specifically localize to the blood vessels within a vascularized tumor following systemic administration. The invention therefore provides methods and compositions comprising coagulation-deficient Tissue Factor for use in effecting specific coagulation and for use in tumor treatment. The TF compositions and methods of present invention may be used alone, as TF conjugates with improved half-life, or in combination with other agents, such as conventional chemotherapeutic drugs, targeted immunotoxins, targeted coaguligands, and/or in combination with Factor VIIa (FVIIa) or FVII activators.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: October 17, 2000
    Assignee: Board of Regents, The University of Texas System
    Inventors: Philip E. Thorpe, Steven W. King, Boning Gao
  • Patent number: 6132729
    Abstract: The invention embodies the surprising discovery that Tissue Factor (TF) compositions and variants thereof specifically localize to the blood vessels within a vascularized tumor following systemic administration. The invention therefore provides methods and compositions comprising coagulation-deficient Tissue Factor for use in effecting specific coagulation and for use in tumor treatment. The TF compositions and methods of present invention may be used alone, as TF conjugates with improved half-life, or in combination with other agents, such as conventional chemotherapeutic drugs, targeted immunotoxins, targeted coaguligands, and/or in combination with Factor VIIa (FVIIa) or FVII activators.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: October 17, 2000
    Assignee: Board of Regents, The University of Texas System
    Inventors: Philip E. Thorpe, Steven W. King, Boning Gao
  • Patent number: 6121426
    Abstract: This invention provides an imaging agent which comprises a polypeptide labeled with an imageable marker, such polypeptide having an amino acid sequence substantially present in the fibrin binding domain of naturally-occurring human fibronectin and being capable of binding to fibrin. The invention further provides a method wherein the imaging agent is used for imaging a fibrin-containing substance, i.e., a thrombus or atherosclerotic plaque. Further provided are plasmids for expression of polypeptides having an amino acid sequence substantially present in the fibrin binding domain of naturally-occurring human fibronectin and being capable of binding to fibrin, hosts containing these plasmids, methods of producing the polypeptides, methods of treatment using the polypeptides, and methods of recovering, refolding and reoxidizing the polypeptides.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: September 19, 2000
    Assignee: Bio-Technology General Corp.
    Inventors: Tikva Vogel, Avigdor Levanon, Moshe Werber, Rachel Guy, Amos Panet
  • Patent number: 6121232
    Abstract: A stabilized solution of fibrinogen containing samples, in particular a stabilized solution of the biological active component (BAC) which is a solution of proteins derived from blood plasma comprising fibrinogen, tranexamic acid and arginine or lysine or mixtures or arginine and lysine, their pharmaceutically acceptable salts, as well as, optionally, substances forming a buffered solution in aqueous medium.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: September 19, 2000
    Assignee: Omrix Biopharmaceuticals SA
    Inventors: Israel Nur, Lilliana Bar, Oded Lieberman
  • Patent number: 6121422
    Abstract: A method and device for activating and applying a solution of fibrinogen to form fibrin glue at a desired site. The method includes contacting the solution of fibrinogen with immobilized thrombin under conditions that result in a solution of polymerizable fibrin and delivering the activated solution to the desired site. The device includes a housing having a compartment for a solution of fibrinogen, a container for immobilized thrombin, a structure following the solution of fibrinogen to be brought into contact with the immobilized thrombin under conditions which permit the activation of the fibrinogen to polymerizable fibrin, and a structure allowing for delivery of the activated solution to the desired site.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: September 19, 2000
    Assignee: Bayer Corporation
    Inventors: Thomas P. Zimmerman, Christopher A. Dadd, George A. Baumbach
  • Patent number: 6117647
    Abstract: A process for determining glycosaminoglycans in antithrombin III (ATIII)-containing solutions by increasing the ionic strength of the AT III-containing solution until the interaction between AT III and glycosaminoglycans is prevented, removing the AT III which has been released from the glycosaminoglycans from the solution, and desalting and determining the glycosaminoglycan which has remained in the solution.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: September 12, 2000
    Assignee: Aventis Behring GmbH
    Inventors: Jurgen Romisch, Harald Stauss
  • Patent number: 6117425
    Abstract: This invention provides supplemented tissue sealants, methods for their production and use thereof. Disclosed are tissue sealants supplemented with at least one cytotoxin or cell proliferation inhibiting composition. The composition may be further supplemented with, for example, one or more antibodies, analgesics, anticoagulants, anti-inflammatory compounds, antimicrobial compositions, cytokines, drugs, growth factors, interferons, hormones, lipids, demineralized bone or bone morphogenetic proteins, cartilage inducing factors, oligonucleotides polymers, polysaccharides, polypeptides, protease inhibitors, vasoconstrictors or vasodilators, vitamins, minerals, stabilizers and the like.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 12, 2000
    Assignee: The American National Red Cross
    Inventors: Martin James MacPhee, William Nash Drohan, Gene Liau, Christian Haudenschild
  • Patent number: 6107097
    Abstract: The present invention provides methods and compositions relating to synthetic test stains comprising isolated fibrin and/or fibrin precursors and blood plasma proteins. Kits for the preparation of synthetic test stains containing an isolated fibrin precursor and an initiator for converting the fibrin precursor to fibrin are also provided. In addition, methods for checking the efficiency of cleaning processes, and kits for carrying out these methods are provided.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: August 22, 2000
    Assignee: Pereg GmbH
    Inventor: Martin Pfeifer
  • Patent number: 6103693
    Abstract: The invention relates to a method for isolation of highly pure von Willebrand Factor in which recombinant von Willebrand Factor (rvWF) is chromatographically purified by anion exchange chromatography on an anion exchanger of the quaternary amino type in a buffer solution comprising buffer substances and optionally salt.The buffer solutions are preferably free of stabilizers, amino acids and other additives. According to this method, highly pure recombinant vWF can be obtained, which is free from blood plasma proteins, especially free from Factor VIII, and is physiologically active.Further, the invention relates to a pharmaceutical preparation that contains rvWF, which is comprised of multimers with a high structural integrity.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: August 15, 2000
    Assignee: Immuno Aktiengesellschaft
    Inventors: Bernhard Fischer, Artur Mitterer, Friedrich Dorner, Hans-Peter Schwarz, Peter Turecek, Johann Eibl, Falko-Guenter Falkner, Uwe Schlokat, Wolfgang Mundt, Manfred Reiter, Renate Den-Bouwmeester
  • Patent number: 6100072
    Abstract: Liquid and lyophilized reagents for determining prothrombin time and/or fibrinogen levels in a plasma sample are disclosed. The reagents preferably are based on recombinant rabbit tissue factor. Also disclosed is a purified preparation of recombinant rabbit tissue factor having unique properties, and a novel method for making PT reagents.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: August 8, 2000
    Assignee: Instrumentation Laboratory S.p.A.
    Inventors: Cheryl Brucato, Cynthia Birr, Pau Bruguera, Juan Ruiz, Demetrio Sanchez-Martinez
  • Patent number: 6096309
    Abstract: The present invention relates to thrombin-containing hemostatic compositions, their preparation and use. In particular, it relates to hemostatic compositions comprising stabilized thrombin and microfibrillar collagen in an aqueous medium. In a preferred embodiment of the present invention, the compositions are used in a kit comprising two different components, one of which is autologous patient's plasma as the source of fibrinogen, and the other of which is the thrombin-containing composition which also contains microfibrillar collagen having an average diameter of about 3-30 nanometers.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: August 1, 2000
    Assignee: Cohesion Technologies, Inc.
    Inventors: Jeffrey J. Prior, Donald G. Wallace, David H. Sierra, Frank A. DeLustro
  • Patent number: 6086871
    Abstract: The invention relates to new prothrombin mutants or derivatives thereof which comprise one or more changes in their protein sequence as compared to natural protein, are either inactive or have an activity of approximately 10% at the most, preferably approximately 0.25% at the most, of the natural protein and which have a binding capacity relative to natural ligands (natural or synthetic anticoagulants) substantially corresponding to that of the natural protein. Furthermore, the use of mutated prothrombin mutants or derivatives, respectively, as pharmaceutical preparations is described.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: July 11, 2000
    Assignee: Baxter Aktiengesellschaft
    Inventors: Bernhard Fischer, Uwe Schlokat, Artur Mitterer, Falko-Gunter Falkner, Johann Eibl
  • Patent number: 6084074
    Abstract: A stabilized aqueous liquid preparation of human blood coagulation factor XIII, prepared by recombinant DNA technology, from the group consisting of galactose, sucrose, sorbitol, glutamate, aspartate and histidine and where little reduction in biological activity occurs even when stored for a longer time.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 4, 2000
    Assignee: Centeon Pharma GmbH
    Inventors: Naoko Kato, Shuji Kondo
  • Patent number: 6083905
    Abstract: This invention relates to the diagnosis of congenital defects in the anticoagulant protein C system. Methods that are disclosed are based on the detection of mutations at the cleavage sites of coagulation factors that are under control of activated protein C (APC). Diagnostic tests include analysis of the APC-cleavage sites of factor V and factor VIII, by using specific primers to amplify selectively from RNA, cDNA derived from RNA or chromosomal DNA, parts of factor V and factor VIII that contain cleavage sites for APC. Methods that monitor the presence of mutations at the cleavage sites for APC and their utility in the diagnosis of thrombo-embolic disease are disclosed. The invention further discloses methods for correcting the defects detected according to the invention, as well as novel therapeutic agents which can be used in the treatment of bleeding disorders, which agents are based on the "defective" Factor V and Factor VIII proteins leading to the thrombotic disorders described hereinabove.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: July 4, 2000
    Assignee: Stichting Sanquin Bloedvoorziening
    Inventors: Johannes Jacobus Voorberg, Jan Aart van Mourik, Koenraad Mertens
  • Patent number: 6069234
    Abstract: The present invention is directed to a modified coagulation factor Xa which has an improved capacity of forming crystals compared to its native form. Such crystals or crystalline composition are especially useful for studies in crystalline form of the active catalytic site of factor Xa when it is complexed to a specific affinity ligand with inhibiting characteristics.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: May 30, 2000
    Assignee: Pharmacia & Upjohn AB
    Inventors: Joanna Chmielewska, Tomas Lundqvist, Erifili Masialou, Derek Ogg
  • Patent number: 6063909
    Abstract: A novel method of protecting blood coagulation factor IX from proteases during purification or storage is disclosed. High concentrations of one or more water soluble organic or inorganic salts are used to stabilize factor IX, contained within blood plasma-derived solutions, or contained within solutions derived from other sources, against conversion to clinically unacceptable peptide structures such as factor IX.sub.a, and/or degraded factor IX peptides. The technique is useful in stabilizing intermediate purity factor IX preparations during purification, and in maintaining the integrity of purified factor IX during long term storage. Stable high specific activity factor IX preparations are also disclosed.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: May 16, 2000
    Assignee: Aventis Behring L.L.C.
    Inventors: Chin C. Huang, Enkoji Takashi, Laura Ho, Richard R. Kleszynski, Richard L. Weeks, Fred Feldman
  • Patent number: 6056970
    Abstract: Solid, fibrous bioabsorbable hemostatic compositions containing a bioabsorbable polymer and a hemostatic compound, methods for making the hemostatic compositions, and methods for using the hemostatic compositions are disclosed.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: May 2, 2000
    Assignee: Genzyme Corporation
    Inventors: Keith E. Greenawalt, Julia B. Gershkovich
  • Patent number: 6054122
    Abstract: This invention provides a fibrin sealant dressing, wherein said fibrin sealant may be supplemented with at least one composition selected from, for example, one or more regulatory compounds, antibody, antimicrobial compositions, analgesics, anticoagulants, antiproliferatives, anti-inflammatory compounds, cytokines, cytotoxins, drugs, growth factors, interferons, hormones, lipids, demineralized bone or bone morphogenetic proteins, cartilage inducing factors, oligonucleotides polymers, polysaccharides, polypeptides, protease inhibitors, vasoconstrictors or vasodilators, vitamins, minerals, stabilizers and the like. Also disclosed are methods of preparing and/or using the unsupplemented or supplemented fibrin sealant dressing.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 25, 2000
    Assignee: The American National Red Cross
    Inventors: Martin James MacPhee, William Nash Drohan, Christoper J. Woolverton
  • Patent number: 6048966
    Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: April 11, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Peter A. D. Edwardson, John E. Fairbrother, Ronald S. Gardner, Derek A. Hollingsbee, Stewart A. Cederholm-Williams
  • Patent number: 6046024
    Abstract: Compositions and methods for avidin immobilized on an inert support material, e.g. agarose, are disclosed. The compositions have high activity levels of avidin and may further include a bulking agent, e.g., maltose, and a protectant to maintain the stability and integrity of the avidin agarose during lyophilization and terminal sterilization processes. These compositions have applicability in any instance where avidin agarose and/or the avidin/biotin technology are useful. In particular, the present compositions are useful in an enzyme capture system to prepare fibrin monomer useful for fibrin sealants. The fibrin is prepared by subjecting a fibrinogen-containing composition to a biotinylated enzyme to convert the fibrinogen in the composition to a corresponding fibrin monomer. A fibrin monomer/biotinylated enzyme mixture is formed.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: April 4, 2000
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Steven James Burton, James C. Pearson, Peter A. D. Edwardson
  • Patent number: 6037452
    Abstract: Factor VIIIC:vWF, Factor VIII C, Factor IX or Factor IX or the activated co-factors thereof are covalently linked to a poly(alkylene oxide).
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: March 14, 2000
    Assignee: Alpha Therapeutic Corporation
    Inventors: Hitoshi Minamino, Edward H. Mealey
  • Patent number: 6034060
    Abstract: The peptide of the present invention comprises a specific amino acid sequence including at least 118 amino acids and has the ability to promote the activation of protein C by thrombin. The peptide of the present invention can be produced efficiently on a large scale by recombinant DNA techniques. The peptide of the present invention has anticoagulant, platelet aggregation-inhibiting and thrombolytic activities, without exhibiting side effects such as bleeding and anaphylactic shock. Therefore, the peptide of the present invention can be effectively used for the treatment of various circulatory organ diseases, toxemia of pregnancy and the like.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: March 7, 2000
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shuji Yamamoto, Koji Suzuki
  • Patent number: 6034222
    Abstract: A method for separation of recombinant pro-Factor IX from recombinant Factor IX by a chromatographic method is described. According to a preferred embodiment, the mixture of both proteins is bound to an ion exchanger and pro-Factor IX and Factor IX are eluted separately from each other by buffer solutions with different salt concentrations and/or pH values.According to the method of the invention, pro-Factor IX and Factor IX are obtainable in highly pure form and free from the other factor respectively.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: March 7, 2000
    Assignee: Bio-Products & Bio-Engineering A.G.
    Inventors: Bernhard Fischer, Artur Mitterer, Friedrich Dorner, Johann Eibl
  • Patent number: 6031081
    Abstract: A process is described for reactivating purified membrane proteins in which a mixture composed of membrane protein, a phospholipid and a detergent is frozen and subsequently thawed.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: February 29, 2000
    Assignee: Dade Behring Marburg GmbH
    Inventor: Norbert F. Zander
  • Patent number: 6019993
    Abstract: A two-component fibrin glue for human application includes a) a component A containing i) a virus-inactivated and concentrated cryoprecipitate that contains fibrinogen, and ii) tranexamic acid or a pharmaceutically acceptable salt, thereof; and b) component B containing a proteolytic enzyme that, upon combination with component A, cleaves, specifically, fibrinogen present in the cryoprecipitate of component A, thereby, effecting a fibrin polymer.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: February 1, 2000
    Assignee: Omrix Biopharmaceuticals S.A.
    Inventor: Frederic Bal
  • Patent number: 6017882
    Abstract: The invention provides vitamin k-dependent polypeptides with enhanced membrane binding affinity. These polypeptides can be used to modulate clot formation in mammals. Methods of modulating clot formation in mammals are also described.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: January 25, 2000
    Assignee: Regents of the University of Minnesota
    Inventor: Gary L. Nelsestuen
  • Patent number: 6013620
    Abstract: The invention relates to a pharmaceutical composition for the treatment of patients with blood coagulation diseases which are caused by coagulation factor deficiency and/or inhibitors of coagulation factors, whereby the composition as a FEIB-activity and is characterized in that it has Factor VIIa and at least one further active ingredient and the activity of at least 10 Factor VIIa units per unit FEIBA. Additionally, the invention comprises a method for the production of the pharmaceutical preparation and its use.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: January 11, 2000
    Assignee: Baxter Aktiengesellschaft
    Inventors: Peter Turecek, Hans-Peter Schwarz, Gerda Redl
  • Patent number: 6008199
    Abstract: A method of treatment for human patients with an acquired hypercoagulable state or acquired protein C deficiency associated with sepsis, purpura fulminans, meningococcal sepsis, bone marrow and other transplantations, severe burns, pregnancy, major surgery, severe trauma, or ARDS, which comprises administering activated protein C providing a highly selective therapeutic agent with a low potential for causing bleeding complications.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: December 28, 1999
    Assignee: Eli Lilly and Company
    Inventors: Brian William Grinnell, Daniel Lawrence Hartman, Sau-Chi Betty Yan
  • Patent number: 6007811
    Abstract: The present invention is a fibrin sealant and a method for producing a fibrin sealant from fish blood. Whole blood is drawn from the donor fish and centifuged to separate blood cells from plasma. Prothrombin and fibrinogen are extracted from this plasma, and the prothrombin is activated to thrombin. The fibrinogen and thrombin components are then combined as needed to form the fibrin sealant.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: December 28, 1999
    Assignee: Sea Run Holdings, Inc.
    Inventors: Evelyn S. Sawyer, Philip J. Sawyer, Jed B. Gorlin, Paul A. Jamney
  • Patent number: 6004555
    Abstract: Disclosed are various compositions and methods for use in achieving specific blood coagulation. This is exemplified by the specific in vivo coagulation of tumor vasculature, causing tumor regression, through the site-specific delivery of a coagulant using a bispecific antibody.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 21, 1999
    Assignees: Board of Regents, The University of Texas System, The Scripps Research Institute
    Inventors: Philip E. Thorpe, Thomas S. Edgington
  • Patent number: 5994296
    Abstract: The present invention describes a mutant human tissue factor protein which binds functional Factor VII/VIIa but is substantially free of functional procoagulant cofactor activity, and compositions containing the mutant protein. Also disclosed are methods for using the mutant human tissue factor proteins, and recombinant DNA vectors for expressing the protein.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: November 30, 1999
    Assignee: The Scripps Research Institute
    Inventors: Wolfram Ruf, Thomas S. Edgington
  • Patent number: 5990079
    Abstract: Analogs of blood factors which are transiently inactive are useful in treatment of diseases characterized by thrombosis. In addition, modified forms of activated blood factors that generate the active blood factor in serum but have extended half-lives are useful in treating hemophilia conditions. These modified forms of the blood factor may be acylated forms which are slowly deacylated in vivo.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: November 23, 1999
    Assignee: COR Therapeutics Inc.
    Inventors: David L. Wolf, Uma Sinha
  • Patent number: 5985590
    Abstract: CrFC21 cDNA was cloned into two mammalian vectors: pCIneo and pCDNAI, both of which carry the strong CMV promoter for expression in mammalian cell lines. Various CrFC cDNA constructs transformed into P. pastoris and S. cerevisiae were expressed to yield full-length recombinant Factor C (rCrFC) protein of .about.130 kDa which is immunoreactive. The rCrFC is expressed in an intracellular, insoluble form. Intracellular localization of the nascent protein provides protection from premature digestion by proteases secreted by the host cell. Subsequent to its synthesis, rCrFC is solubilized and purified under pyrogen-free conditions. Using established protocols, the protein can be denatured and renatured to recover its biological functionality. By manipulation of the 5' end of CrFC26, truncated constructs containing this cDNA are expressed by S. cerevisiae to give immunoreactive rCrFC. The rCrFC produced from both CrFC21 and CrFC26 constructs, solubilized by Triton X-100 or SDS, is found to be immunoreactive.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: November 16, 1999
    Assignee: National University of Singapore
    Inventors: Jeak Ling Ding, Bow Ho
  • Patent number: 5981254
    Abstract: This invention relates to a process for preparing biological glue components from a plasma pool which combines high recovery, quality product and viral safety. In first instance, a triple viral inactivated product comprising fibrogen, fibronectin and FXIII is obtained by treating a concentrate thereof first with a viricide solvent/detergent solution, second with viral nanofiltration, and third with heat. The recovery of a good quality product is not compromised by the process of the invention. In second instance, the same steps are reproduced for obtaining a triple viral safe thrombin product. In that case, a known proprietary process has been improved to increase the recovery of active thrombin by about two fold. One of the steps which increase the yield of thrombin is the dilution of the prothrombin solution with water 4 volumes to 1 volume prothrombin prior to acid precipitation.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 9, 1999
    Assignee: Haemacure Corporation
    Inventor: Trung Bui-Khac
  • Patent number: 5981697
    Abstract: The present invention is directed to the generation of antibodies which preferentially bind to fibrinogen fragments E1, E2, and E3, but exhibit little or no cross-reactivity against fibrin monomer and fibrinogen. Thus, the invention provides synthetic peptides containing defined amino acid sequences corresponding to the carboxy terminal regions of the E fragments which arise as a result of plasmin cleavage of fibrin and fibrinogen. The synthetic peptides may be synthesized chemically, or through genetic manipulations, and may contain additional amino acid sequences which are not contiguous with the defined E fragment sequences.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: November 9, 1999
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Michael Kraus, Werner Stuber
  • Patent number: 5980866
    Abstract: An adhesive for tissue capable of uniformly forming a high concentration of fibrin so as to provide a high closing effect is disclosed. The adhesive for tissue comprises a fibrinogen solution and a thrombin solution which solutions are separated from each other. The adhesive is to be mixed and spray coated together with a sterile gas and has a volume ratio of the fibrinogen solution to the thrombin solution of about 2:1 to 10:1. This adhesive is to be sprayed together with a sterile gas for the adhesion or closing of living tissue of a human being or animal.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: November 9, 1999
    Assignee: Juridical Foundation The Chemosero-Therapeutic Research Institute
    Inventors: Takanori Uchida, Hiroshi Kaetsu, Nobuto Fukunaga, Noriko Shinya, Takahiro Sakamoto
  • Patent number: 5972896
    Abstract: Mammalian kringle 5 fragments are disclosed as a compounds for treating angiogenic diseases. Methods and compositions for inhibiting angiogenic diseases are also disclosed.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: October 26, 1999
    Assignee: Abbott Laboratories
    Inventor: Donald J. Davidson
  • Patent number: 5968897
    Abstract: Analogs of blood factors which are transiently inactive are useful in treatment of diseases characterized by thrombosis. In addition, modified forms of activated blood factors that generate the active blood factor in serum but have extended half-lives are useful in treating hemophilic conditions. These modified forms of the blood factor may be acylated forms which are slowly deacylated in vivo.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: October 19, 1999
    Assignee: COR Therapeutics, Inc.
    Inventors: David L. Wolf, Uma Sinha
  • Patent number: 5968477
    Abstract: Radiolabeled annexin and modified annexin conjugates useful for imaging vascular thrombi are described. Methods for making and using such radiolabeled annexin conjugates are also provided.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: October 19, 1999
    Assignees: NeoRx Corporation, University of WA
    Inventors: Sudhakar Kasina, John M. Reno, Alan R. Fritzberg, Jonathan Tait
  • Patent number: 5968759
    Abstract: The invention relates to a method for the quantification of coagulation factor VIIa (F VIIa) in FVIIa- or FVII/FVIIa-containing solutions by means of selective binding to immobilized soluble thromboplastin.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: October 19, 1999
    Assignee: Centeon Pharma GmbH
    Inventors: Jurgen Romisch, Hans-Arnold Stohr
  • Patent number: 5965383
    Abstract: This invention provides an imaging agent which comprises a polypeptide labeled with an imageable marker, such polypeptide having an amino acid sequence substantially present in the fibrin binding domain of naturally-occurring human fibronectin and being capable of binding to fibrin. The invention further provides a method wherein the imaging agent is used for imaging a fibrin-containing substance, i.e., a thrombus-or atherosclerotic plaque. Further provided are plasmids for expression of polypeptides having an amino acid sequence substantially present in the fibrin binding domain of naturally-occurring human fibronectin and being capable of binding to fibrin, hosts containing these plasmids, methods of producing the polypeptides, methods of treatment using the polypeptides, and methods of recovering, refolding and reoxidizing the polypeptides.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: October 12, 1999
    Assignee: Bio-Technology General Corp.
    Inventors: Tikva Vogel, Avigdor Levanon, Moshe Werber, Rachel Guy, Amos Panet
  • Patent number: 5962420
    Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: October 5, 1999
    Assignee: Bristol-Myers Squibb Company
    Inventors: Peter A. D. Edwardson, John E. Fairbrother, Ronald S. Gardner, Derek A. Hollingsbee, Stewart A. Cederholm-Williams
  • Patent number: 5958716
    Abstract: The present invention provides a method for indicating von Willebrand factor deficiency in a blood sample or platelet-rich plasma sample which exhibits abnormal platelet function comprising (a) adding a von Willebrand factor preparation to the sample, and (b) testing the sample for platelet function. In this method, the von Willebrand factor preparation restores normal platelet function and indicates that the sample initially lacked the von Willebrand factor. The von Willebrand factor preparation comprises purified von Willebrand factor. The invention also discloses a method which further comprises separating the blood sample into a plasma layer and cellular component layer and removing the plasma layer, prior to the step of adding a von Willebrand factor preparation to the sample. In this embodiment the von Willebrand factor preparation comprises platelet-poor plasma containing a normal level of von Willebrand factor.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: September 28, 1999
    Assignee: Dade Behring Inc.
    Inventor: Sourav K. Kundu