Patents Assigned to Research Triangle Pharmaceuticals
  • Patent number: 6465016
    Abstract: Pharmaceutical compositions containing solid cyclic oligopeptide cyclosporine microparticles are prepared by applying energy input to solid cyclic oligopeptide cyclosporine in the presence of phospholipid and one or more non-ionic, anionic or cationic second surface modifiers. The microparticles consist essentially of a solid cyclic oligopeptide cyclosporine core coated with a combination of phospholipid and at least one second surface modifier. The combination of phospholipid and second surface modifier(s) provide volume-weighted mean particle size values of solid cyclic oligopeptide cyclosporine particles that are about 50% smaller than cyclic oligopeptide cyclosporine particles produced in the presence of the phospholipid and without the presence of the second surface modifier(s) using the same energy input.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 15, 2002
    Assignee: Research Triangle Pharmaceuticals
    Inventors: Indu Parikh, Robert A. Snow
  • Patent number: 6228399
    Abstract: Pharmaceutical compositions containing cyclosporin microparticles are prepared by applying energy to cyclosporin particles in the presence of phospholipid and one or more surface modifiers. These microparticles consist essentially of cyclosporin, a phospholipid and at least one surface modifier. The surface modifier or surface modifiers yield particles of a volume-weighted mean particle size the cyclosporin about 50% smaller than cyclosporin particles produced in the presence of a phospholipid only and without the presence of the surface modifier using the same energy input.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 8, 2001
    Assignee: Research Triangle Pharmaceuticals
    Inventors: Indu Parikh, Ulagaraj Selvaraj
  • Patent number: 5922355
    Abstract: Submicron size particles of pharmaceutical or other water-insoluble or poorly water-insoluble substances are prepared using a combination of one or more surface modifiers/surfactants such as polaxomers, poloxamines, polyoxyethylene sorbitan fatty acid esters and the like together with natural or synthetic phospholipids. Particles so produced have a volume weighted mean particle size at least one-half smaller than obtainable using a phospholipid alone. Compositions so prepared are resistant to particle size growth on storage.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: July 13, 1999
    Assignee: Research Triangle Pharmaceuticals
    Inventors: Indu Parikh, Ulagaraj Selvaraj
  • Patent number: 5885956
    Abstract: A method for treating diabetes mellitus by administering composition providing a gastrin/CCK receptor ligand, e.g. a gastrin, and an EGF receptor ligand, e.g. TGF.alpha., in an amount sufficient to effect differentiation of pancreatic islet precursor cells to mature insulin-secreting cells. The composition can be administered systemically or expressed in situ by cells transgenically supplemented with one or both of a gastrin/CCK receptor ligand gene, e.g. a preprogastrin peptide precursor gene and an EGF receptor ligand gene, e.g. a TGF.alpha. gene.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: March 23, 1999
    Assignees: Research Triangle Pharmaceuticals, The General Hospital Corporation
    Inventors: Ronald V. Nardi, Stephen J. Brand
  • Patent number: 5785975
    Abstract: The present invention relates to phospholipid-polysaccharide adjuvant compositions and to vaccine formulations comprising same, as well as to methods of making and using such adjuvants and vaccines.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: July 28, 1998
    Assignee: Research Triangle Pharmaceuticals
    Inventor: Indu Parikh
  • Patent number: 5660858
    Abstract: This invention comprises pharmaceutical compositions consisting essentially of an oil-in-water emulsion containing a synthetic medium chain triglyceride in which is dissolved a therapeutically effective amount of a cyclosporin, phospholipid and optionally free fatty acid or a salt thereof, non-ionic surfactant, ionic surfactant, glycerol, salts, buffers, preservative, osmotic modifier and antioxidant.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: August 26, 1997
    Assignee: Research Triangle Pharmaceuticals
    Inventors: Indu Parikh, Awadhesh Mishra