Patents by Inventor William Pendergast

William Pendergast 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: 20020052007
    Abstract: Diarylmethylbenzylpiperazine compounds, optionally substituted on an aromatic ring of the benzyl substituent with one or more halo substituents, and pharmaceutically acceptable esters and salts of such compounds. Such compounds are usefully employed in therapeutic intervention for treatment or prophylaxis of disease states and conditions such as drug addiction, alcohol addiction, drug overdose, mental illness, cough, lung edema, gastro-intestinal disorders, arthritis, psoriasis, asthma, inflammatory bowel disease, disorders of respiratory function, functional bowel disease, irritable bowel syndrome, diarrhea, functional distension, pain (e.g., functional pain, trauma pain, etc.), non-ulcerogenic dyspepsia, urogenital tract disorders, organ transplant rejection, skin graft rejection, mental disorders, cognitive disorders, emesis, respiratory depression, acne and skin lesions.
    Type: Application
    Filed: September 21, 2001
    Publication date: May 2, 2002
    Inventors: Kwen Jen Chang, William Pendergast, Kestutis P. Biciunas, Edwin Shen-Chou Wu
  • Patent number: 6348589
    Abstract: The present invention relates to certain novel dinucleotides and formulations thereof which are highly selective agonists of the P2Y2 and/or P2Y4 purinergic receptor. They are useful in the treatment of chronic obstructive pulmonary diseases such as chronic bronchitis, PCD, cystic fibrosis, as well as prevention of pneumonia due to immobility. Furthermore, because of their general ability to clear retained mucus secretions and stimulate ciliary beat frequency, the compounds of the present invention are also useful in the treatment of sinusitis, otitis media and nasolacrimal duct obstruction. They are also useful for treatment of dry eye disease and retinal detachment.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: February 19, 2002
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: William Pendergast, Benjamin R. Yerxa, Janet L. Rideout, Suhaib M. Siddiqi
  • Publication number: 20020013289
    Abstract: The present invention provides a method of stimulating cervical and vaginal secretions in a mammal by treatment with P2Y2 and/or P2Y4 purinergic receptor agonists. Treatment of vaginal dryness associated with menopause, chemotherapy, and various disease states as well as the treatment of vulvar pain is discussed. Suitable agonists such as UTP, CTP, ATP, dinucleotides and analogs thereof are disclosed.
    Type: Application
    Filed: November 25, 1998
    Publication date: January 31, 2002
    Inventors: WILLIAM PENDERGAST, SAMMY R. SHAVER, DAVID J. DRUTZ, JANET L. RIDEOUT
  • Patent number: 6323187
    Abstract: The present invention relates to P1-(cytidine 5′-)-P-(uridine 5′-)tetraphosphates and its salts, esters and amides, and formulations thereof which are highly stable and selective agonists of the P2Y2 and/or P2Y4 purinergic receptor. The compounds of the invention are useful in the treatment of chronic obstructive pulmonary diseases such as chronic bronchitis, primary ciliary dyskinesia, cystic fibrosis, as well as prevention of pneumonia due to immobility, and the induction of sputum and its expectoration. Furthermore, because of their general ability to clear retained mucus secretions and stimulate ciliary beat frequency, the compounds of the present invention are also useful in the treatment of sinusitis and otitis media.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: November 27, 2001
    Assignees: Inspire Pharmaceuticals, Inc., University of North Carolina at Chapel Hill
    Inventors: Benjamin R. Yerxa, William Pendergast, Janet L. Rideout, Maryse Picher, Richard C. Boucher, Jr., M. Jackson Stutts
  • Patent number: 6319908
    Abstract: The present invention provides new methods for the synthesis of the therapeutic dinucleotide, P1,P4-di(uridine 5′-tetraphosphate), and demonstrates applicability to the production of large quantities. The methods of the present invention substantially reduce the time period required to synthesize diuridine tetraphosphate, preferably to three days or less. The novel tetrammonium and tetrasodium salts of P1,P4-di(uridine 5′-tetraphosphate) (Formula I) prepared by these methods are stable, soluble, nontoxic, and easy to handle during manufacture, wherein: X is Na, NH4 or H, provided that all X groups are not H.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: November 20, 2001
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Benjamin R. Yerxa, William Pendergast
  • Patent number: 6306865
    Abstract: Compounds of formula (I) or salts thereof, wherein the dotted line represents a single or double bond, R1 is alkyl or amino optionally substituted by alkyl, alkanoyl or benzyl group; R2, R3, R4 and R5 are the same or different and each is selected from hydrogen, phenyl, halo, nitro, a group S(O)nR8 wherein n is the integer 0, 1 or 2 and R8 is halo or alkyl or a group NR9R10 wherein R9 and R10 are both hydrogen, a group NR11R12 wherein R11 and R12 are the same or different and each is hydrogen or alkyl, a group OR13 wherein R13 is hydrogen or C1-4 of alkyl optionally substituted by halo; a C1-4 aliphatic group optionally substituted by a group OR14 or NR14R15 wherein R14 and R15 are the same or different and each is hydrogen or alkyl; or two of R2 to R5 are linked together to form a benzo group, or one of R2 to R5 is a group X—Y—R16 wherein X is CH2, NR17, CO or S(O)m and Y is CH2, NR17, O or S(O)m, or X—Y is O, NR17, —CH═CH— or N═N—, are disclosed as pharmacologic
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: October 23, 2001
    Assignee: Glaxo Wellcome Inc.
    Inventors: William Pendergast, Scott Howard Dickerson, Julius Vass Johnson, Robert Ferone
  • Publication number: 20010011079
    Abstract: The present invention provides new methods for the synthesis of the therapeutic dinucleotide, P1,P4-di(uridine 5′-tetraphosphate), and demonstrates applicability to the production of large quantities. The methods of the present invention substantially reduce the time period required to synthesize diuridine tetraphosphate, preferably to three days or less. The novel tetrammonium and tetrasodium salts of P1,P4-di(uridine 5′-tetraphosphate) (Formula I) prepared by these methods are stable, soluble, nontoxic, and easy to handle during manufacture.
    Type: Application
    Filed: March 13, 2001
    Publication date: August 2, 2001
    Inventors: Benjamin R. Yerxa, William Pendergast
  • Patent number: 6143279
    Abstract: Compounds of Formula I: ##STR1## wherein: X.sub.1, and X.sub.2 are each independently either O.sup.- or S.sup.- ;X.sub.3 and X.sub.4 are each independently either --H or --OH, with the proviso that X.sub.3 and X.sub.4 are not simultaneously --H;R.sub.1 is selected from the group consisting of O, imido, methylene and dihalomethylene;R.sub.2 is selected from the group consisting of H, halo, alkyl, substituted alkyl, alkoxyl, nitro and azido;R.sub.3 is selected from the group consisting of H, alkyl, acyl, aryl, and arylalkyl; andR.sub.4 is selected from the group consisting of --OR', --SR', --NR', and --NR'R", wherein R' and R" are independently selected from the group consisting of H, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, alkoxyl, and aryloxyl, with the proviso that R' is absent when R.sub.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: November 7, 2000
    Assignees: The University of North Carolina at Chapel Hill, Inspire Pharmaceuticals, Inc.
    Inventors: Richard C. Boucher, Jr., Sammy Ray Shaver, William Pendergast, Benjamin Yerxa, Janet L. Rideout, Robert Dougherty, Dallas Croom
  • Patent number: 6090941
    Abstract: Compounds of the formula (I) or salts thereof, ##STR1## wherein the dotted line represents a single or double bond, R.sup.1 is alkyl or amino optionally substituted by alkyl, alkanoyl or benzyl group: R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and each is selected from hydrogen, phenyl, halo, nitro, a group S(O).sub.n R.sup.8 wherein n is the integer 0, 1 or 2 and R.sup.8 is halo or alkyl or a group NR.sup.9 R.sup.10 are both hydrogen, a group NR.sup.11 R.sup.12 wherein R.sup.11 and R.sup.12 are the same or different and each is hydrogen or alkyl, a group OR.sup.13 wherein R.sup.13 is hydrogen or C.sub.1-4 alkyl substituted by halo; a C.sub.1-4 aliphatic group optionally substituted by a group OR.sup.14 or NR.sup.14 R.sup.15 wherein R.sup.14 and R.sup.15 are the same or different and each is hydrogen or alkyl; ot two of R.sup.2 to R.sup.5 are linked together to form a benzp group, one of R.sup.2 to R.sup.3 is a group X--Y--R.sup.16 wherein X is CH.sub.2, NR.sup.17, CO, or S(O).sub.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: July 18, 2000
    Assignee: Glaxo Wellcome Inc.
    Inventors: William Pendergast, Scott Howard Dickerson, Julius Vass Johnson, Robert Ferone
  • Patent number: 6022527
    Abstract: Compounds of Formula I: ##STR1## wherein: X.sub.1, and X.sub.2 are each independently either O.sup.- or S.sup.- ;X.sub.3 and X.sub.4 are each independently either --H or --OH, with the proviso that X.sub.3 and X.sub.4 are not simultaneously --H;R.sub.1 is selected from the group consisting of O, imido, methylene and dihalomethylene;R.sub.2 is selected from the group consisting of H, halo, alkyl, substituted alkyl, alkoxyl, nitro and azido;R.sub.3 is selected from the group consisting of H, alkyl, acyl, aryl, and arylalkyl; andR.sub.4 is selected from the group consisting of --OR', --SR', --NR', and --NR'R", wherein R' and R" are independently selected from the group consisting of H, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, alkoxyl, and aryloxyl, with the proviso that R' is absent when R.sub.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: February 8, 2000
    Assignees: The University of North Carolina at Chapel Hill, Inspire Pharmaceuticals, Inc.
    Inventors: Richard C. Boucher, Jr., Sammy Ray Shaver, William Pendergast, Benjamin Yerxa, Janet L. Rideout, Robert Dougherty, Dallas Croom
  • Patent number: 5981506
    Abstract: A method of promoting drainage of congested mucous secretions in the sinuses of a subject in need of such treatment is disclosed. The method comprises administering to the sinuses of the subject a uridine phosphate such as uridine 5'-triphosphate (UTP) or P.sup.1,P.sup.4 -di(uridine-5') tetraphosphate (U.sub.2 P.sub.4), an analog of UTP, or any other analog, in an amount effective to promote drainage of congested fluid in the sinuses by hydrating mucous secretions or by stimulating ciliary beat frequency in the sinuses. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include any liquid suspension (including nasal drops or spray), oral form (liquid or pill), aerosol inhalation, powder form, topical, injected, intra-operative instillation or suppository form.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: November 9, 1999
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Karla Jacobus, Janet Rideout, Ben Yerxa, William Pendergast, Suhaib Siddiqi, David Drutz
  • Patent number: 5972904
    Abstract: A method of promoting drainage of congested mucous secretions in the sinuses of a subject in need of such treatment is disclosed. The method comprises administering to the sinuses of the subject a uridine phosphate such as uridine 5'-triphosphate (UTP) or P.sup.1,P.sup.4 -di(uridine-5') tetraphosphate (U.sub.2 P.sub.4), an analog of UTP, or any other analog, in an amount effective to promote drainage of congested fluid in the sinuses by hydrating mucous secretions or by stimulating ciliary beat frequency in the sinuses. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include any liquid suspension (including nasal drops or spray), oral form (liquid or pill), aerosol inhalation, powder form, topical, injected, intra-operative instillation or suppository form.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: October 26, 1999
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Karla Jacobus, Janet Rideout, Ben Yerxa, William Pendergast, Suhaib Siddiqi, David Drutz
  • Patent number: 5968913
    Abstract: Novel pharmaceutical compositions of uridine 5'-triphosphate (UTP) for use in promoting increased mucociliary clearance of retained mucous secretions of the human airways, middle/inner ears or sinuses are disclosed. Novel Formulation I comprises UTP and aqueous solution having a therapeutic concentration between 5 and 45 mg/mL, a controlled tonicity within the range of 250 to 100 mOsM, a pH between 7.0 and 7.5, and is sterile. The pH-adjusted composition is capable of long-term storage in the refrigerated state with a shelf life of up to 30 months. Formulation I may be delivered therapeutically either in a nebulized form or in a liquid form. Novel Formulation II comprises UTP in an aqueous solution or suspension having a therapeutic concentration approaching the limit of UTP's solubility at ambient temperature. This high concentration allows delivery of a therapeutic amount of UTP in very small volumes (50 to 100 .mu.L) suitable for administration via portable hand-held devices such as metered dose inhalers.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: October 19, 1999
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Karol K. LaCroix, Christy L. Shaffer, Karla M. Jacobus, Janet L. Rideout, David J. Drutz, Richard C. Evans, William Pendergast
  • Patent number: 5958897
    Abstract: A method of promoting drainage of congested mucous secretions in the sinuses of a subject in need of such treatment is disclosed. The method comprises administering to the sinuses of the subject a uridine phosphate such as uridine 5'-triphosphate (UTP) or P.sup.1,P.sup.4 -di(uridine-5') tetraphosphate (U.sub.2 P.sub.4), an analog of UTP, or any other analog, in an amount effective to promote drainage of congested fluid in the sinuses by hydrating mucous secretions or by stimulating ciliary beat frequency in the sinuses. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include any liquid suspension (including nasal drops or spray), oral form (liquid or pill), aerosol inhalation, powder form, topical, injected, intra-operative instillation or suppository form.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: September 28, 1999
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Karla Jacobus, Janet Rideout, Ben Yerxa, William Pendergast, Suhaib Siddiqi, David Drutz
  • Patent number: 5900407
    Abstract: A method and preparation for the stimulation of tear secretion in a subject in need of such treatment is disclosed. The method comprises administering to the ocular surfaces of the subject a purinergic receptor agonist such as uridine 5'-triphosphate ?UTP!, dinucleotides, cytidine 5'-triphosphate ?CTP!, adenosine 5'-triphosphate ?ATP!, or their therapeutically useful analogs and derivatives, in an amount effective to stimulate tear fluid secretion. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include: topical administration via a liquid, gel, cream, or as part of a contact lens or selective release membrane; or systemic administration via nasal drops or spray, inhalation by nebulizer or other device, oral form (liquid or pill), injectable, intra-operative instillation or suppository form.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: May 4, 1999
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Benjamin R. Yerxa, Karla M. Jacobus, William Pendergast, Janet L. Rideout
  • Patent number: 5837861
    Abstract: The present invention encompasses structures of the formula ##STR1## wherein: X is oxygen, methylene, or difluoromethylene;n=0 or 1;m=0 or 1;n+m=0, 1 or 2; andB and B' are each independently a purine residue or a pyrimidine residue linked through the 9- or 1-position, respectively, provided that compounds disclosed in Table I are excluded. In the instance where B and B' are uracil, attached at the N-1 position to the ribosyl moiety, then the total of m+n may equal 3 or 4 when X is oxygen.The compounds of the present invention are highly selective agonists of the P2Y.sub.2 purinergic receptor, thus, they are useful in the treatment of chronic obstructive pulmonary diseases such as chronic bronchitis, PCD, cystic fibrosis, as well as prevention of pneumonia due to immobility. Furthermore, because of their general ability to clear retained mucus secretions and stimulate ciliary beat frequency, the compounds of the present invention are also useful in the treatment of sinusitis and otitis media.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: November 17, 1998
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: William Pendergast, Benjamin R. Yerxa, Janet L. Rideout, Suhaib M. Siddiqi
  • Patent number: 5789391
    Abstract: A method of promoting drainage of congested mucous secretions in the sinuses of a subject in need of such treatment is disclosed. The method comprises administering to the sinuses of the subject a uridine phosphate such as uridine 5'-triphosphate (UTP) or P.sup.1,P.sup.4 -di(uridine-5') tetraphosphate (U.sub.2 P.sub.4), an analog of UTP, or any other analog, in an amount effective to promote drainage of congested fluid in the sinuses by hydrating mucous secretions or by stimulating ciliary beat frequency in the sinuses. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include any liquid suspension (including nasal drops or spray), oral form (liquid or pill), aerosol inhalation, powder form, topical, injected, intra-operative instillation or suppository form.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: August 4, 1998
    Assignee: Inspire Pharmaceuticals, Inc.
    Inventors: Karla Jacobus, Janet Rideout, Ben Yerxa, William Pendergast, Suhaib Siddiqi, David Drutz
  • Patent number: 5663337
    Abstract: The present invention relates to benzoquinazoline thymidylate synthase inhibitors, processes for preparing them and pharmaceutical formulations containing them.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: September 2, 1997
    Assignee: Glaxo Wellcome Inc.
    Inventors: William Pendergast, Scott Howard Dickerson
  • Patent number: 5661155
    Abstract: The present invention relates to bezoquinazoline thymidylate synthase inhibitors, to pharmaceutical formulations containing them and to their use in medicine.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 26, 1997
    Assignee: Glaxo Wellcome Inc.
    Inventors: William Pendergast, Scott Howard Dickerson
  • Patent number: 5405851
    Abstract: The present invention relates to novel benzoquinazoline thymidylate synthase inhibitors, to pharmaceutical formulations containing them and to their use in medicine.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: April 11, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: William Pendergast, Scott H. Dickerson, Julius V. Johnson, Robert Ferone