CA2265270A1 - Liquid prothrombin time reagent - Google Patents

Liquid prothrombin time reagent Download PDF

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Publication number
CA2265270A1
CA2265270A1 CA002265270A CA2265270A CA2265270A1 CA 2265270 A1 CA2265270 A1 CA 2265270A1 CA 002265270 A CA002265270 A CA 002265270A CA 2265270 A CA2265270 A CA 2265270A CA 2265270 A1 CA2265270 A1 CA 2265270A1
Authority
CA
Canada
Prior art keywords
reagent
human
tissue factor
serum albumin
origin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002265270A
Other languages
French (fr)
Other versions
CA2265270C (en
Inventor
Norbert Zander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Healthcare Diagnostics Products GmbH
Original Assignee
Dade Behring Marburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dade Behring Marburg GmbH filed Critical Dade Behring Marburg GmbH
Publication of CA2265270A1 publication Critical patent/CA2265270A1/en
Application granted granted Critical
Publication of CA2265270C publication Critical patent/CA2265270C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/86—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood coagulating time or factors, or their receptors

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Urology & Nephrology (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • Cell Biology (AREA)
  • Biotechnology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Microbiology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The present invention relates to a ready-to-use prothrombin time reagent which is stable long-term, based on recombinant tissue factor, and its use in clotting tests.

Claims (12)

1. A ready-to-use prothrombin time reagent which is stable long-term, based on recombinant tissue factor.
2. The reagent as claimed in claim 1, which has a life of at least 12 months in a closed container and at 2-8°C.
3. The reagent as claimed in claim 1, which contains at least one antioxidant and additionally a serum albumin.
4. The reagent as claimed in claim 3, wherein ascorbic acid is added as an antioxidant.
5. The reagent as claimed in claim 4, wherein ascorbic acid is used in a concentration of 1 µM
to 0.1 M.
6. The reagent as claimed in claim 3, wherein the serum albumin is of human, animal or recombinant origin.
7. The reagent as claimed in claim 6, wherein the serum albumin is of human origin.
8. The reagent as claimed in claim 7, wherein the human serum albumin is added in a concentration of 0.1 g/1 to 100 g/1.
9. The reagent as claimed in claim 1, wherein the recombinant tissue factor used is of human or animal origin.
10. The reagent as claimed in claim 9, which is a human recombinant tissue factor.
11. The reagent as claimed in claim 9, wherein the tissue factor is cloned and expressed in cells of human, animal, vegetable, fungal or microbial origin.
12. The reagent as claimed in claim 11, wherein the host cell is Escherichia coli.
CA002265270A 1998-03-13 1999-03-11 Liquid prothrombin time reagent Expired - Lifetime CA2265270C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811016.2 1998-03-13
DE19811016A DE19811016A1 (en) 1998-03-13 1998-03-13 Ready-to-use prothrombin time reagent based on recombinant tissue factor

Publications (2)

Publication Number Publication Date
CA2265270A1 true CA2265270A1 (en) 1999-09-13
CA2265270C CA2265270C (en) 2009-11-24

Family

ID=7860840

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002263197A Withdrawn CA2263197A1 (en) 1998-03-13 1999-03-01 Ready-to-use prothrombin time reagent based on recombinant tissue factor
CA002265270A Expired - Lifetime CA2265270C (en) 1998-03-13 1999-03-11 Liquid prothrombin time reagent

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002263197A Withdrawn CA2263197A1 (en) 1998-03-13 1999-03-01 Ready-to-use prothrombin time reagent based on recombinant tissue factor

Country Status (6)

Country Link
EP (1) EP0942284B1 (en)
JP (1) JP4199365B2 (en)
AT (1) ATE385315T1 (en)
CA (2) CA2263197A1 (en)
DE (2) DE19811016A1 (en)
ES (1) ES2299224T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10877052B2 (en) 2016-02-12 2020-12-29 Instrumentation Laboratory Company Two component “mix and use” liquid thromboplastin reagent, methods of making, and methods of use thereof

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7049087B2 (en) * 2002-11-05 2006-05-23 Lifescan, Inc. Method for manufacturing a tissue factor-based prothrombin time reagent
JP4377207B2 (en) * 2003-11-28 2009-12-02 シスメックス株式会社 Blood coagulation time measurement method and blood coagulation time measurement reagent
US7148067B2 (en) * 2004-08-31 2006-12-12 The Board Of Trustees Of The University Of Illinois Thromboplastin reagents
WO2006096345A2 (en) 2005-03-04 2006-09-14 The Board Of Trustees Of The University Of Illinois Coagulation and fibrinolytic cascades modulator
US8821861B2 (en) 2007-10-05 2014-09-02 The Board Of Trustees Of The University Of Illinois Fibrin sealant
WO2009061697A1 (en) 2007-11-09 2009-05-14 The Board Of Trustees Of The University Of Illinois Anticoagulant antagonist and hemophilia procoagulant
DE102007062323A1 (en) 2007-12-21 2009-06-25 Siemens Healthcare Diagnostics Products Gmbh Long-term stable thromboplastin reagent
US9028808B2 (en) 2010-01-28 2015-05-12 Immunservice Gmbh Methods for treating nicotine addiction and reducing food consumption
JP6116231B2 (en) * 2012-12-25 2017-04-19 株式会社Ｌｓｉメディエンス Tissue thromboplastin-containing blood coagulation ability measuring reagent and measuring method
ES2617612T3 (en) * 2013-02-28 2017-06-19 Siemens Healthcare Diagnostics Products Gmbh Procedure for the determination of protein S activity.
JP6250306B2 (en) * 2013-05-28 2017-12-20 株式会社Ｌｓｉメディエンス Respirated thromboplastin-containing blood coagulation ability measuring reagent and measuring method
EP3489692A1 (en) * 2017-11-28 2019-05-29 Siemens Healthcare Diagnostics Products GmbH Prothrombin time reagent comprising an iron chelator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522148A (en) * 1965-08-13 1970-07-28 Dade Reagents Inc Stabilized thromboplastin preparation
US5314695A (en) * 1990-11-13 1994-05-24 Corvas International, Inc. Tissue factor based prothrombin time reagent
US5358853A (en) * 1992-08-03 1994-10-25 Akzo Av Liquid thromboplastin reagent
DE69832628T2 (en) * 1997-04-23 2006-09-07 Instrumentation Laboratory S.P.A. RECOMBINANT RABBIT FACTOR BASED PROTHROMBIN TIME REAGENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10877052B2 (en) 2016-02-12 2020-12-29 Instrumentation Laboratory Company Two component “mix and use” liquid thromboplastin reagent, methods of making, and methods of use thereof
US11460477B2 (en) 2016-02-12 2022-10-04 Instrumentation Laboratory Company Two component “mix and use” liquid thromboplastin reagent, methods of making, and methods of use thereof

Also Published As

Publication number Publication date
EP0942284A3 (en) 2005-03-16
ES2299224T3 (en) 2008-05-16
EP0942284A2 (en) 1999-09-15
JPH11316228A (en) 1999-11-16
EP0942284B1 (en) 2008-01-30
DE19811016A1 (en) 1999-09-16
CA2263197A1 (en) 1999-09-13
DE59914634D1 (en) 2008-03-20
JP4199365B2 (en) 2008-12-17
CA2265270C (en) 2009-11-24
ATE385315T1 (en) 2008-02-15

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Effective date: 20190311