Patents by Inventor Mark Chasin

Mark Chasin 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).

  • Patent number: 5591776
    Abstract: Rolipram-based PDE IV inhibitors containing phenyl- or benzyl-substituted moieties of the formula: ##STR1## wherein X.sub.1 and X.sub.2 may be the same or different and each is O or S;R.sub.1 is selected from the group consisting of hydrogen, saturated or unsaturated straight-chain or branched C.sub.2-12 alkyl groups, cycloalkyl and cycloalkyl-alkyl groups containing from 3 to 10 carbon atoms in the cycloalkyl moiety;R.sub.2 =R.sub.1 or --CH.sub.3 ;R.sub.3 is hydrogen, halogen, or a saturated or unsaturated straight-chain or branched C.sub.1-12 alkyl group, a cycloalkyl or cycloalkyl-alkyl groups containing from 3 to 7 carbon atoms in the cycloalkyl moiety;Z is a linkage selected from --CH.sub.2 CONH-- or --CH.sub.2 NHCO--, andR.sub.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: January 7, 1997
    Assignee: Euro-Celtique, S.A.
    Inventors: David J. Cavalla, Lloyd J. Dolby, Mark Chasin
  • Patent number: 5580578
    Abstract: A stable solid controlled release formulation having a coating derived from an aqueous dispersion of a hydrophobic acrylic polymer includes a substrate including an active agent selected from the group consisting of a systemically active therapeutic agent, a locally active therapeutic agent, a disinfecting and sanitizing agent, a cleansing agent, a fragrance agent and a fertilizing agent, overcoated with an aqueous dispersion of the plasticized water-insoluble acrylic polymer. The formulation provides a stable dissolution of the active agent which is unchanged after exposure to accelerated storage conditions.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: December 3, 1996
    Assignee: Euro-Celtique, S.A.
    Inventors: Benjamin Oshlack, Frank Pedi, Jr., Mark Chasin
  • Patent number: 5549912
    Abstract: A method for substantially reducing the range in daily dosages required to control pain in approximately 90% of patients is disclosed whereby an oral solid controlled release dosage formulation having from about 10 to about 40 mg of oxycodone or a salt thereof is administered to a patient. The formulation provides a mean maximum plasma concentration of oxycodone from about 6 to about 60 ng/ml from a mean of about 2 to about 4.5 hours after administration, and a mean minimum plasma concentration from about 3 to about 30 ng/ml from about 10 to about 14 hours after repeated "q12h" (i.e., every 12 hour) administration through steady-state conditions.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: August 27, 1996
    Assignee: Euro-Celtique, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin, John J. Minogue, Robert F. Kaiko
  • Patent number: 5508042
    Abstract: A method for substantially reducing the range in daily dosages required to control pain in approximately 90% of patients is disclosed whereby an oral solid controlled release dosage formulation having from about 10 to about 40 mg of oxycodone or a salt thereof is administered to a patient. The formulation provides a mean maximum plasma concentration of oxycodone from about 6 to about 60 ng/ml from a mean of about 2 to about 4.5 hours after administration, and a mean minimum plasma concentration from about 3 to about 30 ng/ml from about 10 to about 14 hours after repeated "q12h" (i.e. every 12 hour) administration through steady-state conditions.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 16, 1996
    Assignee: Euro-Celtigue, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin, John J. Minogue, Robert F. Kaiko
  • Patent number: 5500227
    Abstract: A controlled release tablet for oral administration is disclosed which has a tablet core including an insoluble therapeutically active agent having an aqueous solubility of less than or equal to about 5 mg/ml in a sufficient amount to render a therapeutic effect. The core provides rapid release of said therapeutically active agent upon exposure to aqueous solutions. The tablet core is coated with a controlled release coating permitting sustained release of said therapeutically active agent when said coated tablet is exposed to aqueous solutions.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: March 19, 1996
    Assignee: Euro-Celtique, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin
  • Patent number: 5472712
    Abstract: A stabilized solid controlled release formulation having a coating derived from an aqueous dispersion of a hydrophobic polymer is obtained by overcoating a substrate including an active agent selected from the group consisting of a systemically active therapeutic agent, a locally active therapeutic agent, a disinfecting and sanitizing agent, a cleansing agent, a fragrance agent and a fertilizing agent, with an aqueous dispersion of the plasticized hydrophobic polymer and then curing the coated substrate at a temperature above the glass transition temperature of the plasticized hydrophobic polymer, until a curing endpoint is reached at which the coated substrate provides a stabilized dissolution of the active agent which is unchanged after exposure to accelerated storage conditions, the endpoint being determined by comparing the dissolution profile of the formulation immediately after curing to the dissolution profile of the formulation after exposure to accelerated storage conditions of at least one month at
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: December 5, 1995
    Assignee: Euroceltique, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin, Frank Pedi, Jr.
  • Patent number: 5356467
    Abstract: Stable aqueous dispersions of zein which may be used as controlled release coatings of pharmaceutical, animal, health, or food products in an inorganic solvent-free environment are disclosed, as well as methods for preparing the same.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: October 18, 1994
    Assignee: Euroceltique S.A.
    Inventors: Benjamin Oshlack, James McGinity, Mark Chasin, Roland Bodmeier
  • Patent number: 5324351
    Abstract: Aqueous dispersions of zein which may be used in the coating of pharmaceutical, animal, health, or food products in an inorganic solvent-free environment are disclosed, as well as methods for preparing the same.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: June 28, 1994
    Assignee: Euroceltique
    Inventors: Benjamin Oshlack, Mark Chasin, James McGinity, Roland Bodmeier
  • Patent number: 5286493
    Abstract: A stabilized solid controlled release dosage form having a coating derived from an aqueous dispersion of an acrylic polymer is obtained by overcoating a substrate including a therapeutically active with an aqueous dispersion of the plasticized acrylic polymer and then curing the coated substrate at a temperature above the glass transition temperature of the plasticized acrylic polymer, until the coated dosage form attains a stabilized dissolution profile substantially unaffected by exposure to storage conditions of elevated temperature and/or elevated relative humidity.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: February 15, 1994
    Assignee: Euroceltique, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin, Frank Pedi, Jr.
  • Patent number: 5273760
    Abstract: A stabilized solid controlled release dosage form having a coating derived from an aqueous dispersion of ethylcellulose is obtained by overcoating a substrate including a therapeutically active agent with an aqueous dispersion of ethylcellulose and then curing the coated substrate at a temperature and relative humidity elevated to a suitable level above ambient conditions until the coated dosage form attains a stabilized dissolution profile substantially unaffected by exposure to storage conditions of elevated temperature and/or elevated relative humidity.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: December 28, 1993
    Assignee: Euroceltigue, S.A.
    Inventors: Benjamin Oshlack, Frank Pedi, Jr., Mark Chasin
  • Patent number: 5266331
    Abstract: A solid controlled release, oral dosage form, the dosage form comprising a therapeutically effective amount of oxycodone or a salt thereof in a matrix wherein the dissolution rate in vitro of the dosage form, when measured by the USP Paddle Method of 100 rpm in 900 ml aqueous buffer (pH between 1.6 and 7.2) at 37.degree. C. is between 12.5% and 42.5% (by weight) oxycodone released after 1 hour, between 25% and 55% (by weight) oxycodone released after 2 hours, between 45% and 75% (by weight) oxycodone released after 4 hours and between 55% and 85% (by weight) oxycodone released after 6 hours, the in vitro release rate being independent of pH between pH 1.6 and 7.2 and chosen such that the peak plasma level of oxycodone obtained in vivo occurs between 2 and 4 hours after administration of the dosage form.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 30, 1993
    Assignee: Euroceltique, S.A.
    Inventors: Benjamin Oshlack, John J. Minogue, Mark Chasin
  • Patent number: 5122367
    Abstract: A controlled release device for the administration of biologically active growth hormone proteins or peptide fragments, and method of preparation thereof, wherein biologically active growth hormone is stabilized and release rate modulated by incorporation of a stabilizing compound. The controlled release devices are prepared by mixing a stabilizer, such as sucrose, with a biologically active growth hormone, such as bovine somatotropic hormone, in solution, lyophilizing, then incorporating the dried powder into a surface erodible, biocompatible polymeric matrix, such as a poly(anhydride) or poly(orthoester) matrix.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: June 16, 1992
    Assignees: Massachusetts Institute of Technology, Nova Pharmaceutical Corporation
    Inventors: Eyal Ron, Mark Chasin, Tom Turek, Robert S. Langer