Patents by Inventor Dariush Davalian

Dariush Davalian 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).

  • Publication number: 20090081299
    Abstract: A method including advancing a delivery device through a lumen of a blood vessel to a particular region in the blood vessel; and introducing a composition including a sustained-release carrier and an apolipoprotein A-I (apo A-I) synthetic mimetic peptide into a wall of the blood vessel at the particular region or a perivascular site, wherein the peptide has a property that renders the peptide effective in reverse cholesterol transport. A composition including an apolipoprotein A-I (apo A-I) synthetic peptide, or combination of an apo A-I synthetic mimetic peptide and an Acyl CoA cholesterol: acyltransferase (ACAT) inhibitor in a form suitable for delivery into a blood vessel, the peptide including an amino acid sequence in an order reverse to an order of various apo A-I mimetic peptides, or endogenous apo A-I analogs, or a chimera of helix 1 and helix 9 of endogenous apo A-I.
    Type: Application
    Filed: November 27, 2007
    Publication date: March 26, 2009
    Inventors: Syed F. A. Hossainy, Jinping Wan, Dariush Davalian, Florian Ludwig, Katsuyuki Murase
  • Publication number: 20090081293
    Abstract: A method including advancing a delivery device through a lumen of a blood vessel to a particular region in the blood vessel; and introducing a composition including a sustained-release carrier and an apolipoprotein A-I (apo A-I) synthetic mimetic peptide into a wall of the blood vessel at the particular region or a perivascular site, wherein the peptide has a property that renders the peptide effective in reverse cholesterol transport. A composition including an apolipoprotein A-I (apo A-I) synthetic peptide, or combination of an apo A-I synthetic mimetic peptide and an Acyl CoA cholesterol: acyltransferase (ACAT) inhibitor in a form suitable for delivery into a blood vessel, the peptide including an amino acid sequence in an order reverse to an order of various apo A-I mimetic peptides, or endogenous apo A-I analogs, or a chimera of helix 1 and helix 9 of endogenous apo A-I.
    Type: Application
    Filed: November 27, 2007
    Publication date: March 26, 2009
    Inventors: Katsuyuki Murase, Jinping Wan, John Stankus, Dariush Davalian, Florian Ludwig
  • Publication number: 20080146489
    Abstract: The present invention relates to the regional delivery of therapeutic agents for the treatment of vascular diseases wherein regional delivery refers to delivery of a therapeutically effective amount of the therapeutic agent to an area of the vessel that includes not only afflicted tissue but non-afflicted tissue at the periphery of the afflicted tissue as well.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 19, 2008
    Inventors: Stephen D. Pacetti, Paul M. Consigny, Ronald W. Heil, Florian Niklas Ludwig, Dariush Davalian, Li Zhao, Irina Astafieva, Jinping Wan, Fozan El-Nounou, Katsuyuki Murase, Syed F.A. Hossainy, Rachel Bright, Jeffrey Ellis
  • Publication number: 20080095847
    Abstract: Compositions, methods of fabrication and methods of treatment for the controlled release of a therapeutic substance to a treatment region are disclosed herein. In some embodiments, block copolymer-based release platforms (modified or unmodified) can be used to deliver a therapeutic substance to an inflamed site in, for example, the coronary tree or the kidney glomeri. The platforms can be carriers of at least one therapeutic substance. An external “trigger”, or stimulus, such as radiation, ultrasound, temperature, a magnetic field, a change in pH, a change in ionic strength or release of an enzyme, can be used to destabilize the platform in order to release its payload in a controlled manner once at a treatment site. Delivery devices can include a syringe, an infusion catheter, a porous balloon catheter, a double balloon catheter and the like.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Inventors: Thierry Glauser, Dariush Davalian, Florian Niklas Ludwig, Mikael Trollsas
  • Publication number: 20070298257
    Abstract: Nano-constructs comprising nanoshells and methods of using the nano-constructs for treating or ameliorating a medical condition are provided.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 27, 2007
    Inventors: Florian Niklas Ludwig, Stephen D. Pacetti, Syed F. A. Hossainy, Dariush Davalian
  • Publication number: 20070292495
    Abstract: Nano-constructs comprising nanoshells and methods of using the nano-constructs for treating or ameliorating a medical condition are provided.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Florian N. Ludwig, Stephen D. Pacetti, Syed F.A. Hossainy, Dariush Davalian
  • Publication number: 20060216770
    Abstract: An IgG1 ? monoclonal antibody to the immunosuppressive drug tacrolimus has improved properties. In particular, this monoclonal antibody, designated 1H6, has reduced cross-reactivity to several tacrolimus metabolites. This antibody is suitable for performance of immunoassays such as homogeneous immunoassays to detect or determine the presence or concentration of tacrolimus in samples such as blood samples. The invention further includes derivatives of tacrolimus derivatized at a non-binding portion of the molecule useful in immunizing antibody-producing animals and in producing such monoclonal antibodies, as well as labeled derivatives of tacrolimus useful as tacrolimus analogues in such assays. The invention further includes immunoassay methods for the detection of tacrolimus and test kits useful in performing such immunoassays.
    Type: Application
    Filed: May 26, 2006
    Publication date: September 28, 2006
    Inventors: Kenneth Kasper, Henry Jeong, Dariush Davalian, Hshiou-tinh Liu, Paul Miller, Denise Williams
  • Patent number: 7101682
    Abstract: Methods, compositions and kits are disclosed. The methods are directed to determining the presence of one or more analytes in a sample suspected of containing any one of a plurality of the analytes. A combination is provided comprising in a medium (i) the sample, (ii) a binding partner for each of the analytes, (iii) for each of the analytes, a first reagent comprising a member of a signal producing system, a ligand and an analyte analog, and (iv) a second reagent comprising a binding partner for the ligand. The binding of the binding partner for the ligand is affected by the presence of an analyte and alters the amount of signal produced by the member of the signal producing system. The signal thus is modulated if one or more of the analytes are present in the sample. The amount of the signal is determined and is related to the presence of one or more of the analytes in the sample. The method may be homogeneous or heterogeneous.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: September 5, 2006
    Assignee: Dade Behring Marburg GmbH
    Inventors: Edwin F. Ullman, Marcel Pirio, Mary C. Ericson, Daniel B. Wagner, Dariush Davalian
  • Patent number: 7078495
    Abstract: An IgG1 ? monoclonal antibody to the immunosuppressive drug tacrolimus has improved properties. In particular, this monoclonal antibody, designated 1H6, has reduced cross-reactivity to several tacrolimus metabolites. This antibody is suitable for performance of immunoassays such as homogeneous immunoassays to detect or determine the presence or concentration of tacrolimus in samples such as blood samples. The invention further includes derivatives of tacrolimus derivatized at a non-binding portion of the molecule useful in immunizing antibody-producing animals and in producing such monoclonal antibodies, as well as labeled derivatives of tacrolimus useful as tacrolimus analogues in such assays. The invention further includes immunoassay methods for the detection of tacrolimus and test kits useful in performing such immunoassays.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: July 18, 2006
    Assignee: Dade Behring Inc.
    Inventors: Kenneth Cornell Kasper, Henry Jeong, Dariush Davalian, Hshiou-ting Liu, Paul Levi Miller, Denise Leah Williams
  • Publication number: 20060099664
    Abstract: Methods, compositions and kits are disclosed. The methods are directed to determining the presence of one or more analytes in a sample suspected of containing any one of a plurality of the analytes. A combination is provided comprising in a medium (i) the sample, (ii) a binding partner for each of the analytes, (iii) for each of the analytes, a first reagent comprising a member of a signal producing system, a ligand and an analyte analog, and (iv) a second reagent comprising a binding partner for the ligand. The binding of the binding partner for the ligand is affected by the presence of an analyte and alters the amount of signal produced by the member of the signal producing system. The signal thus is modulated if one or more of the analytes are present in the sample. The amount of the signal is determined and is related to the presence of one or more of the analytes in the sample. The method may be homogeneous or heterogeneous.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 11, 2006
    Inventors: Edwin Ullman, Marcel Pirio, Mary Ericson, Daniel Wagner, Dariush Davalian
  • Patent number: 7033775
    Abstract: Methods, compositions and kits are disclosed. The methods are directed to determining the presence of one or more analytes in a sample suspected of containing any one of a plurality of the analytes. A combination is provided comprising in a medium (i) the sample, (ii) a binding partner for each of the analytes, (iii) for each of the analytes, a first reagent comprising a member of a signal producing system, a ligand and an analyte analog, and (iv) a second reagent comprising a binding partner for the ligand. The binding of the binding partner for the ligand is affected by the presence of an analyte and alters the amount of signal produced by the member of the signal producing system. The signal thus is modulated if one or more of the analytes are present in the sample. The amount of the signal is determined and is related to the presence of one or more of the analytes in the sample. The method may be homogeneous or heterogeneous.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 25, 2006
    Assignee: Dade Behring Marburg GmbH
    Inventors: Edwin F. Ullman, Marcel Pirio, Mary C. Ericson, Daniel B. Wagner, Dariush Davalian
  • Publication number: 20040253657
    Abstract: Methods, compositions and kits are disclosed. The methods are directed to determining the presence of one or more analytes in a sample suspected of containing any one of a plurality of the analytes. A combination is provided comprising in a medium (i) the sample, (ii) a binding partner for each of the analytes, (iii) for each of the analytes, a first reagent comprising a member of a signal producing system, a ligand and an analyte analog, and (iv) a second reagent comprising a binding partner for the ligand. The binding of the binding partner for the ligand is affected by the presence of an analyte and alters the amount of signal produced by the member of the signal producing system. The signal thus is modulated if one or more of the analytes are present in the sample. The amount of the signal is determined and is related to the presence of one or more of the analytes in the sample. The method may be homogeneous or heterogeneous.
    Type: Application
    Filed: July 9, 2004
    Publication date: December 16, 2004
    Inventors: Edwin F. Ullman, Marcel Pirio, Mary C. Ericson, Daniel B. Wagner, Dariush Davalian
  • Publication number: 20040198703
    Abstract: Alpha-haloketones are useful alkylating agents for coupling to sulfhydryl-containing biomolecules. However, they react spontaneously with water, alkali and organic bases and therefore cannot be stored for extended periods of time in aqueous solutions, particularly in the presence of proteins at physiological pH. The present invention provides novel solutions to these problems, however, as novel compounds and compositions comprising protected haloketones are disclosed herein. Methods of preparing and using protected haloketones which are useful in a variety of applications—e.g., in assays and conjugation reactions—are also disclosed herein.
    Type: Application
    Filed: April 27, 2004
    Publication date: October 7, 2004
    Inventors: Steye de Keczer, Yen Ping Liu, Dariush Davalian, Nurith Kurn, Edwin F. Ullman
  • Patent number: 6797481
    Abstract: Methods, compositions and kits are disclosed. The methods are directed to determining the presence of one or more analytes in a sample suspected of containing any one of a plurality of the analytes. A combination is provided comprising in a medium (i) the sample, (ii) a binding partner for each of the analytes, (iii) for each of the analytes, a first reagent comprising a member of a signal producing system, a ligand and an analyte analog, and (iv) a second reagent comprising a binding partner for the ligand. The binding of the binding partner for the ligand is affected by the presence of an analyte and alters the amount of signal produced by the member of the signal producing system. The signal thus is modulated if one or more of the analytes are present in the sample. The amount of the signal is determined and is related to the presence of one or more of the analytes in the sample. The method may be homogeneous or heterogeneous.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: September 28, 2004
    Assignee: Dade Behring Marburg GmbH
    Inventors: Edwin F. Ullman, Marcel Pirio, Mary C. Ericson, Daniel B. Wagner, Dariush Davalian
  • Publication number: 20040175696
    Abstract: Methods are disclosed for determining minute quantities of an analyte in a medium suspected of containing the analyte. One method comprises treating a medium suspected of containing an analyte under conditions such that the analyte, if present, causes a substrate having an oxidant cleavable linker and a photosenstizer to come into close proximity. The photosenstizer generates singlet oxygen which oxidatively cleaves the linker to form a product which can be detected in a sandwich detection assay such as LOCI. The amount of product detected is related to the amount of analyte in the medium. Compositions, kits, and compounds are also disclosed.
    Type: Application
    Filed: December 7, 2000
    Publication date: September 9, 2004
    Inventors: Edwin F. Ullman, Rajendra Singh, Steve De Keczer, Dariush Davalian
  • Patent number: 6783947
    Abstract: Alpha-haloketones are useful alkylating agents for coupling to sulfhydryl-containing biomolecules. However, they react spontaneously with water, alkali and organic bases and therefore cannot be stored for extended periods of time in aqueous solutions, particularly in the presence of proteins at physiological pH. The present invention provides novel solutions to these problems, however, as novel compounds and compositions comprising protected haloketones are disclosed herein. Methods of preparing and using protected haloketones which are useful in a variety of applications—e.g., in assays and conjugation reactions—are also disclosed herein.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: August 31, 2004
    Assignee: Dade Behring Marburg GmbH
    Inventors: Steve de Keczer, Yen Ping Liu, Dariush Davalian, Nurith Kurn, Edwin F. Ullman
  • Patent number: 6410696
    Abstract: A method of measuring the amount of cyclosporin in a sample suspected of containing cyclosporin is disclosed. A method of inactivating interfering cross-reactive material in an assay for measuring the amount of cyclosporin in a sample suspected of containing cyclosporin is also disclosed. Compositions wherein cyclosporin is conjugated to an immunogenic carrier or a label, optionally through a linking group, at an alanine nitrogen atom of the cyclic backbone of cyclosporin are also disclosed. Compositions wherein atiocyclosporin is conjugated, optionally through a linking group, to an immunogenic carrier or a label are also disclosed. Where cyclosporin is conjugated to an immunogenic carrier, the conjugates may be used as immunogens for the preparation of antibodies which are capable of recognizing cyclosporin.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: June 25, 2002
    Assignee: Dade Behring Marburg GmbH
    Inventors: Dariush Davalian, Maureen H. Beresini, Svetlana Alexander, Mae Wan-Leng Hu, Edwin F. Ullman
  • Patent number: 6225073
    Abstract: The present invention provides antibodies useful in assays for mycophenolic acid (MPA). These antibodies bind MPA and are able to distinguish MPA from its esters, such as morpholinoethyl E-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoate, and/or its metabolites, such as mycophenolic acid glucuronide. The present invention also provides conjugates of labels and MPA or MPA analogs. The antibodies of the invention are capable of binding these conjugates and are also capable of inhibiting the activity of the label when bound to the conjugates. The present invention also provides methods for the determination of MPA in a sample suspected of containing MPA that use the antibodies and/or conjugates of the invention. The present invention also provides assay reagents as well as packaged kits useful for performing the methods of the invention.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: May 1, 2001
    Assignee: Dade Behring Marburg GmbH
    Inventors: Svetlana Alexander, Dariush Davalian
  • Patent number: 6190873
    Abstract: A method of measuring the amount of cyclosporin in a sample suspected of containing cyclosporin is disclosed. A method of inactivating interfering cross-reactive material in an assay for measuring the amount of cyclosporin in a sample suspected of containing cyclosporin is also disclosed. Compositions wherein cyclosporin is conjugated to an immunogenic carrier or a label, optionally through a linking group, at an alanine nitrogen atom of the cyclic backbone of cyclosporin are also disclosed. Compositions wherein atiocyclosporin is conjugated, optionally through a linking group, to an immunogenic carrier or a label are also disclosed. Where cyclosporin is conjugated to an immunogenic carrier, the conjugates may be used as immunogens for the preparation of antibodies which are capable of recognizing cyclosporin.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: February 20, 2001
    Assignee: Dade Behring Marburg GmbH
    Inventors: Dariush Davalian, Maureen H. Beresini, Svetlana Alexander, Mae Wan-Leng Hu, Edwin F. Ullman
  • Patent number: 6153442
    Abstract: The present invention relates to compounds that are bis-biotins. These compounds comprise two biotinyl radicals connected by a chain of atoms, usually at least 16 atoms in length. The bis-biotin is conjugated to a member of a specific binding pair ("sbp member") wherein the chain is not part of the sbp member. Also disclosed are compositions comprising a complex of avidin and a bis-biotin as described above. The compounds and compositions of the invention find use in an assay for an analyte wherein there is employed a reagent system comprising an avidin reagent and a biotin reagent. The improvement of the present invention comprises using as the biotin reagent a bis-biotin as described above. Also disclosed are kits comprising the present bis-biotins and methods of preparing a bis-biotinylated conjugate of a member of a specific binding pair ("sbp member") for use in a specific binding assay.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: November 28, 2000
    Assignee: Dade Behring Inc.
    Inventors: Marcel Rene Pirio, Dariush Davalian, Jacqueline Sadakan Ishkanian, Edwin F. Ullman