Patents Represented by Attorney, Agent or Law Firm William A. Barrett, Esq.
  • Patent number: 6770625
    Abstract: Pharmaceutical compositions that include a drug-oligomer conjugate, a fatty acid component, and a bile salt component are described. The drug is covalently coupled to an oligomeric moiety. The fatty acid component and the bile salt component are present in a weight-to-weight ratio of between 1:5 and 5:1. Methods of treating diseases in a subject in need of such treatment using such pharmaceutical compositions are also provided, as are methods of providing such pharmaceutical compositions.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: August 3, 2004
    Assignee: Nobex Corporation
    Inventors: Richard Soltero, Nnochiri N. Ekwuribe, Foyeke Opawale, Bruce Rehlaender, Anthony Hickey, Li Li Bovet
  • Patent number: 6713454
    Abstract: The present invention provides amphiphilic prodrugs comprising a therapeutic compound conjugated to an PEG-oligomer/polymer and methods for using said prodrugs to enable oral drug delivery and/or delivery of drugs across the blood brain barrier into the central nervous system.
    Type: Grant
    Filed: December 31, 1999
    Date of Patent: March 30, 2004
    Assignee: Nobex Corporation
    Inventors: Nnochiri Ekwuribe, Christopher H. Price, Tatyana A. Dyakonov
  • Patent number: 6713510
    Abstract: The present invention provides compositions useful for the treatment of inflammation in humans, and related methods of treatment for the same. In one embodiment the composition is In another embodiment, the composition is Additional alternative embodiments are R or R″ that are therapeutic moieties.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: March 30, 2004
    Assignee: Nobex Corporation
    Inventors: Nnochiri Nkem Ekwuribe, Jennifer A. Riggs
  • Patent number: 6703381
    Abstract: The present invention relates to amphiphilic drug-oligomer conjugates capable of traversing the blood-brain barrier (“BBB”) and to methods of making and using such conjugates. An amphiphilic drug-oligomer conjugates comprise a therapeutic compound conjugated to an oligomer, wherein the oligomer comprises a lipophilic moiety coupled to a hydrophilic moiety. The conjugates of the invention further comprise therapeutic agents such as proteins, peptides, nucleosides, nucleotides, antiviral agents, antineoplastic agents, antibiotics, etc., and prodrugs, precursors, derivatives and intermediates thereof, chemically coupled to amphiphilic oligomers.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 9, 2004
    Assignee: Nobex Corporation
    Inventors: Nnochiri N. Ekwuribe, Balasingam Rhadakrishnan, Christopher H. Price, Wes Anderson, Jr., Aslam M. Ansari
  • Patent number: 6653348
    Abstract: The present invention provides compositions useful for the treatment of inflammation in humans, and related methods of treatment for the same. In one embodiment the composition is In another embodiment, the composition is Additional alternative embodiments are R or R″ that are therapeutic moieties.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: November 25, 2003
    Assignee: Nobex Corporation
    Inventors: Nnochiri Nkem Ekwuribe, Jennifer A. Riggs
  • Patent number: 6638906
    Abstract: Proteins and/or peptides, such as luminal cholecystokinin releasing factor (LCRF), are conjugated with amphiphilic oligomers and polymers. Such conjugates may modulate the pharmacokinetic profile and/or peptides; thereby improving their clinical utility. Such conjugates may also stabilize and deliver the proteins and/or peptides, such as LCRF, to receptors in the gut without absorption into the bloodstream.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: October 28, 2003
    Assignee: Nobex Corporation
    Inventor: Nnochiri Ekwuribe
  • Patent number: 6610739
    Abstract: The present invention provides compositions useful for the treatment of inflammation in humans, and related methods of treatment for the same. In one embodiment the composition is In another embodiment, the composition is Additional alternative embodiments are R or R″ that are therapeutic moieties.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: August 26, 2003
    Assignee: Nobex Corporation
    Inventors: Nnochiri Nkem Ekwuribe, Jennifer A. Riggs
  • Patent number: 6593492
    Abstract: A methods of preparing a substantially pure enantiomer of an acylanilide such as Casodex® (bicalutamide) and/or its derivatives includes resolving an intermediate compound having the structure of Formula I: wherein R1 is alkyl or haloalkyl having up to 4 carbons; R2 is alkyl having up to 6 carbon atoms; R3 is a direct link or alkyl having up to 6 carbon atoms; R4 is alkyl, alkenyl, hydroxyalkyl or cycloalkyl each of up to 6 carbons; or R4 is phenyl which bears one, two or three substituents independently selected from hydrogen, halogen, nitro, carboxy, carbamoyl and cyano, and alkyl, alkoxy, alkanoyl, alkylthio, alkylsulphinyl, alkylsulphonyl, perfluoroalkyl, perfluoroalkylthio, perfluoroalkylsulphinyl, perfluoroalkylsulphonyl, alkoxycarbonyl and N-alkylcarbamoyl each of up to 4 carbon atoms, and phenyl, phenylthio, phenylsulphinyl and phenylsulphonyl; or R4 is naphthyl; or R4 is a 5- or 6-membered saturated or unsaturated heterocyclic which contains one, two or three heteroatoms sel
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: July 15, 2003
    Assignee: Nobex Corporation
    Inventors: Nnochiri Nkem Ekwuribe, Kenneth D. James
  • Patent number: 6583306
    Abstract: Methods of synthesizing pure enantiomers of acylanalides such as Casodex® (bicalutamide) and its derivatives utilizing a compound having a ring structure that, when opened, provides a substituent having the structure of Formula I: wherein R1 is alkyl or haloalkyl having up to 4 carbons; R2 is alkyl having up to 6 carbon atoms; and R3 is CH2OR4 where R4 is hydrogen or benzyl, C(O)CH3, or C(O)OR5 where R5 is hydrogen or alkyl; are disclosed. Methods of synthesizing acylanalides such as Casodex® (bicalutamide) and/or derivatives thereof from a starting material of citramalic acid are also provided.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: June 24, 2003
    Assignee: Nobex Corporation
    Inventor: Nnochiri Nkem Ekwuribe
  • Patent number: 6583128
    Abstract: Compounds are disclosed having the structure of Formula I: where R1, R3, and R4 are independently hydrogen or C1 to C4 alkyl, and R2 is: where R5 is selected from the group consisting of hydrogen and C1 to C4 alkyl, or where R6, R7 and R8 are independently hydrogen or C1 to C4 alkyl; or the esters or pharmacologically acceptable salts thereof. Such compounds may be utilized for the prophylaxis or treatment of various diseases, particularly inflammatory conditions of the GI tract. Methods of treating inflammatory conditions of the GI tract such as inflammatory bowel disease using compounds having the following formula are also disclosed: where R9, R10 and R11 are independently selected from the group consisting of hydrogen and C1 to C4 alkyl, and R12 is selected from the group consisting of hydrogen and —C(O)R13, where R13 is a C1 to C6 alkyl or an aryl group.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: June 24, 2003
    Assignee: Nobex Corporation
    Inventors: Nnochiri Nkem Ekwuribe, Jennifer A. Riggs-Sauthier