Patents by Inventor Iontcho R. Vlahov

Iontcho R. Vlahov 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: 20160220694
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 4, 2016
    Inventors: Iontcho R. VLAHOV, Christopher P. LEAMON, Matthew A. PARKER, Stephen J. HOWARD, Hari Krishna R. SANTHAPURAM, Apparao SATYAM, Joseph A. REDDY
  • Publication number: 20160193371
    Abstract: The invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using radionuclide-based imaging. In particular, the invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using positron emission tomography.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 7, 2016
    Inventors: Iontcho R. VLAHOV, Christopher P. LEAMON, Hari Krishna R. SANTHAPURAM
  • Publication number: 20160002167
    Abstract: Bivalent linkers to be included in or for preparing vitamin, drug, diagnostic agent, and/or imaging agent conjugates are described.
    Type: Application
    Filed: June 22, 2015
    Publication date: January 7, 2016
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Apparao Satyam, Stephen J. Howard
  • Publication number: 20140154702
    Abstract: Described are methods, uses, and kits for utilizing a targeted ligand conjugate in combination with a thiol inhibitor or a system xc? inhibitor for the treatment of cancer or inflammation. Also described are in vitro assays utilizing a targeted ligand conjugate in combination with a thiol inhibitor or a system xc? inhibitor.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 5, 2014
    Inventors: Nikki L. PARKER, Christopher P. LEAMON, Iontcho R. VLAHOV
  • Publication number: 20140058063
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: March 5, 2013
    Publication date: February 27, 2014
    Applicant: ENDOCYTE, INC.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna R. Santhapuram, Apparao Satyam, Joseph A. Reddy
  • Publication number: 20130267522
    Abstract: The invention relates to methods and uses for the treatment of a cancer. In particular, the invention relates to the use of a folate-vinca conjugate to treat urinary bladder cancer (e.g., invasive transitional cell carcinoma (InvTCC)).
    Type: Application
    Filed: February 27, 2013
    Publication date: October 10, 2013
    Applicants: Endocyte, Inc., Purdue Research Foundation
    Inventors: Deborah Knapp, Deepika Dhawan, Philip S. Low, Paul Joseph Kleindl, Iontcho R. Vlahov
  • Publication number: 20130252904
    Abstract: The invention relates to compounds, compositions, kits, and methods for the treatment of a cancer. In particular, the invention relates to compounds, compositions, or kits comprising a folate-vinca conjugate, and methods for the treatment of a cancer with a folate-vinca conjugate.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 26, 2013
    Applicant: Endocyte, Inc.
    Inventors: Christopher P. Leamon, Iontcho R. Vlahov
  • Publication number: 20120065149
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Patent number: 8105568
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 31, 2012
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna R. Santhapuram, Apparao Satyam, Joseph A. Reddy
  • Patent number: 7872145
    Abstract: The present invention is directed to aziridinyl epothilone compounds as further described herein, and/or pharmaceutically-acceptable salts and/or solvates thereof having the following Formula: wherein K is —O—, —S—, or —NR7—; A is —(CR8R9)—(CH2)m—Z—wherein Z is —(CHR10)—, —C(?O)—, —C(?O)—C(?O)—, —OC(?O)—, —N(R11)C(?O)—, —SO2—, or —N(R11)SO2—; B1 is hydroxyl or cyano and R1 is hydrogen or B1 and R1 are taken together to form a double bond; R2, R3, and R5 are, independently, hydrogen, alkyl, substituted alkyl, aryl or substituted aryl; or R2 and R3 may be taken together with the carbon to which they are attached to form an optionally substituted cycloalkyl; R4 is hydrogen, alkyl, alkenyl, substituted alkyl, substituted alkenyl, aryl, or substituted aryl; R6 is hydrogen, alkyl or substituted alkyl; R7, R8, R9, R10, R11 and R12 are independently hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, heterocycloalkyl, substituted heterocycloalkyl, heteroaryl, or subst
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: January 18, 2011
    Assignee: Bristol-Mysers Squibb Company
    Inventors: Gregory D. Vite, Francis Y. Lee, Christopher P. Leamon, Iontcho R. Vlahov
  • Publication number: 20100004276
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 7, 2010
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Patent number: 7601332
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: October 13, 2009
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Patent number: 6376662
    Abstract: A method for synthesizing C-glycosides of ulosonic acids such as Neu5Ac, by which diastereocontrolled synthesis of &agr;-C-glycosides of ulosonic acids is attained is disclosed. In the method of the present invention, an ulosonic acid sulfone or phosphite is reacted with an aldehyde or ketone compound in the presence of a lanthanide metal halide.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 23, 2002
    Assignee: University of Iowa Research Foundation
    Inventors: Robert J. Linhardt, Iontcho R. Vlahov