Patents by Inventor Stephan Christgau

Stephan Christgau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8623422
    Abstract: A combination treatment, wherein a strontium-containing compound together with one or more active substances capable of reducing the incidence of bone fracture and/or increasing bone density and/or improving healing of fractured bone and/or improving bone quality are administered for use in the treatment and/or prophylaxis of cartilage and/or bone conditions.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: January 7, 2014
    Assignee: Osteologix A/S
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau
  • Patent number: 8609616
    Abstract: A method for the treatment and/or prophylaxis of an osteonecrotic bone disease in a mammal in need thereof, such as, e.g., idiopathic or secondary osteonecrosis, avascular bone necrosis, glucocorticoid induced bone ischemia/osteonecrosis, Legg-Calve-Perthes disease and femoral head necrosis, the method comprising administering an effective dose of a strontium-containing compound (a) to the mammal. A method for the treatment and/or prophylaxis of an osteonecrotic bone disease, such as, e.g., idiopathic or secondary osteonecrosis, avascular bone necrosis, glucocorticoid induced bone ischemia/osteonecrosis and femoral head necrosis, in a mammal who is to be or is treated with a therapeutic agent (b) known to or suspected of inducing apoptosis and/or necrosis of bone cells, the method comprising administering a strontium-containing compound (a) in combination with (b).
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: December 17, 2013
    Assignee: Osteologix A/S
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau, Henry G Bone, III
  • Patent number: 8541471
    Abstract: Compounds and pharmaceutical compositions for use in the treatment and/or prophylaxis of cartilage and/or bone conditions and for methods of treating such condition. The compounds are salts of strontium that have a water-solubility of from about 1 g/l to about 100 g/l at room temperature, especially amino acid salts of strontium or dicarboxylic acid salts of strontium. Examples of novel water-soluble strontium salts are e.g. strontium glutamate and strontium alpha-ketoglutarate. The present invention also relates to an improved method for preparing the strontium salt of glutamic acid.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: September 24, 2013
    Assignee: Osteologix A/S
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau, Jens E. T. Andersen
  • Patent number: 8329874
    Abstract: Methods are described for improving the diagnostic possibilities of diseases where oxidative NO-modifications occur, for example inflammatory conditions, cancer, Parkinson's or Alzheimer's disease, and to provide means of monitoring the effects of therapeutical measures taken towards such diseases. The invention enables the detection of disease specific catabolic markers related to oxidative NO-modifications, utilizing an immunoassay comprising antibodies directed against nitrated and non-nitrated epitopes characteristic of a specific protein.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 11, 2012
    Assignee: Université de Liège
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Patent number: 8183409
    Abstract: A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method comprising the use of a high temperature (about 90° or more) and, optionally. high pressure, in order to obtain a higher yield, purity and faster reaction speed than obtained with known synthesis methods. In particular, the present invention relates to the production of strontium salts of carboxylic acids. Novel strontium salts are also provided by the present method.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: May 22, 2012
    Assignee: Osteologix A/S
    Inventors: Stephan Christgau, Jens E. T. Andersen
  • Publication number: 20120010389
    Abstract: Methods are described for improving the diagnostic possibilities of diseases where oxidative NO-modifications occur, for example inflammatory conditions, cancer, Parkinson's or Alzheimer's disease, and to provide means of monitoring the effects of therapeutical measures taken towards such diseases. The invention enables the detection of disease specific catabolic markers related to oxidative NO-modifications, utilizing an immunoassay comprising antibodies directed against nitrated and non-nitrated epitopes characteristic of a specific protein.
    Type: Application
    Filed: August 30, 2011
    Publication date: January 12, 2012
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Publication number: 20110269675
    Abstract: A method for the treatment and/or prophylaxis of an osteonecrotic bone disease in a mammal in need thereof, such as, e.g., idiopathic or secondary osteonecrosis, avascular bone necrosis, glucocorticoid induced bone ischemia/osteonecrosis, Legg-Calve-Perthes disease and femoral head necrosis, the method comprising administering an effective dose of a strontium-containing compound (a) to the mammal. A method for the treatment and/or prophylaxis of an osteonecrotic bone disease, such as, e.g., idiopathic or secondary osteonecrosis, avascular hone necrosis, glucocorticoid induced bone ischemia/osteonecrosis and femoral head necrosis, in a mammal who is to be or is treated with a therapeutic agent (b) known to or suspected of inducing apoptosis and/or necrosis of bone cells, the method comprising administering a strontium-containing compound (a) in combination with (b).
    Type: Application
    Filed: July 14, 2011
    Publication date: November 3, 2011
    Inventors: Christian HANSEN, Henrik NILSSON, Stephan CHRISTGAU, Henry G. BONE, III
  • Publication number: 20110223684
    Abstract: Methods are described for improving the diagnostic possibilities of diseases where oxidative NO-modifications occur, for example inflammatory conditions, cancer, Parkinson's or Alzheimer's disease, and to provide means of monitoring the effects of therapeutical measures taken towards such diseases. The invention enables the detection of disease specific catabolic markers related to oxidative NO-modifications, utilizing an immunoassay comprising antibodies directed against nitrated and non-nitrated epitopes characteristic of a specific protein.
    Type: Application
    Filed: January 20, 2011
    Publication date: September 15, 2011
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Patent number: 7915001
    Abstract: Methods are described for improving the diagnostic possibilities of diseases where oxidative NO-modifications occur, for example inflammatory conditions, cancer, Parkinson's or Alzheimer's disease, and to provide means of monitoring the effects of therapeutical measures taken towards such diseases. The invention enables the detection of disease specific catabolic markers related to oxidative NO-modifications, utilizing an immunoassay comprising antibodies directed against nitrated and non-nitrated epitopes characteristic of a specific protein.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 29, 2011
    Assignee: Universite De Liege
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Publication number: 20100143473
    Abstract: A combination treatment, wherein a strontium-containing compound together with one or more active substances capable of reducing the incidence of bone fracture and/or increasing bone density and/or improving healing of fractured bone and/or improving bone quality are administered for use in the treatment and/or prophylaxis of cartilage and/or bone conditions.
    Type: Application
    Filed: May 4, 2009
    Publication date: June 10, 2010
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau
  • Patent number: 7728112
    Abstract: A method for improving the diagnostic assessment of cartilage degenerative processes, and to provide means of monitoring the effects of therapeutical measures taken towards arthritic diseases in most mammals utilizes an immunoassay to detect fragments of collagen type II resulting from collagenase activity comprising an antibody directed against an epitope comprised in the amino acid sequence HRGYPGLDG (SEQ ID NO:1), located in the helical region of collagen type II.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: June 1, 2010
    Assignee: Universite de Liege
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Publication number: 20100048697
    Abstract: Compounds and pharmaceutical compositions for use in the treatment and/or prophylaxis of cartilage and/or bone conditions and for methods of treating such condition. The compounds are salts of strontium that have a water-solubility of from about 1 g/l to about 100 g/l at room temperature, especially amino acid salts of strontium or dicarboxylic acid salts of strontium. Examples of novel water-soluble strontium salts are e.g. strontium glutamate and strontium alpha-ketoglutarate. The present invention also relates to an improved method for preparing the strontium salt of glutamic acid.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 25, 2010
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau, Jens E.T. Andersen
  • Patent number: 7632684
    Abstract: In an in vitro diagnostic test for osteoarthritis or rheumatoid arthritis, the amount or presence in a sample of anisomerised or optically inverted protein fragment is measured which derives from perlecan, bigylcan, decorin, fibrillin-1 or protocadherin or which is a specific sequence from aggrecan, type II collagen, COMP or CILP.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: December 15, 2009
    Assignee: Nordic Bioscience Diagnostics A/S
    Inventors: Stephan Christgau, Dennis B. Henriksen, Paul A. C. Cloos
  • Publication number: 20090291926
    Abstract: A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method comprising the use of a high temperature (about 90° or more) and, optionally. high pressure, in order to obtain a higher yield, purity and faster reaction speed than obtained with known synthesis methods. In particular, the present invention relates to the production of strontium salts of carboxylic acids. Novel strontium salts are also provided by the present method.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 26, 2009
    Inventors: Stephan Christgau, Jens E.T. Andersen
  • Patent number: 7595342
    Abstract: Compounds and pharmaceutical compositions for use in the treatment and/or prophylaxis of cartilage and/or bone conditions and for methods of treating such condition. The compounds are salts of strontium that have a water-solubility of from about 1 g/l to about 100 g/l at room temperature, especially amino acid salts of strontium or dicarboxylic acid salts of strontium. Examples of novel water-soluble strontium salts are e.g. strontium glutamate and strontium alpha-ketoglutarate. The present invention also relates to an improved method for preparing the strontium salt of glutamic acid.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: September 29, 2009
    Assignee: Osteologix A/S
    Inventors: Christian Hansen, Henrik Nilsson, Stephan Christgau, Jens E.T. Andersen
  • Patent number: 7589235
    Abstract: A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method comprising the use of a high temperature (about 90° or more) and, optionally. high pressure, in order to obtain a higher yield, purity and faster reaction speed than obtained with known synthesis methods. In particular, the present invention relates to the production of strontium salts of carboxylic acids. Novel strontium salts are also provided by the present method.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: September 15, 2009
    Assignee: Osteologix, A/S
    Inventors: Stephan Christgau, Jens E. T. Andersen
  • Publication number: 20090203040
    Abstract: Methods are described for improving the diagnostic possibilities of diseases where oxidative NO-modifications occur, for example inflammatory conditions, cancer, Parkinson's or Alzheimer's disease, and to provide means of monitoring the effects of therapeutical measures taken towards such diseases. The invention enables the detection of disease specific catabolic markers related to oxidative NO-modifications, utilizing an immunoassay comprising antibodies directed against nitrated and non-nitrated epitopes characteristic of a specific protein.
    Type: Application
    Filed: June 27, 2008
    Publication date: August 13, 2009
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau
  • Publication number: 20090191282
    Abstract: A controlled release pharmaceutical composition comprising a strontium salt. The invention also relates to the use of a strontium salt for treating a male suffering from diseases and conditions affecting metabolism and/or structural integrity of cartilage and/or bone. The invention also relates to the use of a strontium-containing compound for preventing a cartilage and/or bone condition in a subject, and for the treatment and/or prophylaxis of secondary osteoporosis.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 30, 2009
    Inventors: Christian Hansen, Henrik Nilsson, Jens E.T. Andersen, Stephan Christgau
  • Publication number: 20090137678
    Abstract: New organic salts of strontium and methods of synthesizing such salts with high purity, high yields and with short processing times, at neutral conditions and at low reaction temperature, such as a temperature at or below 50° C.
    Type: Application
    Filed: July 5, 2006
    Publication date: May 28, 2009
    Inventors: Stephan Christgau, Jens E.T. Andersen
  • Publication number: 20090042220
    Abstract: A method for improving the diagnostic assessment of cartilage degenerative processes, and to provide means of monitoring the effects of therapeutical measures taken towards arthritic diseases in most mammals utilizes an immunoassay to detect fragments of collagen type II resulting from collagenase activity comprising an antibody directed against an epitope comprised in the amino acid sequence HRGYPGLDG (SEQ ID NO:1), located in the helical region of collagen type II.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Applicant: Universite de Liege
    Inventors: Jean-Yves Reginster, Michelle Deberg, Yves Henrotin, Stephan Christgau