Sustained Or Differential Release Patents (Class 424/457)
  • Patent number: 7132108
    Abstract: Biodegradable and biocompatible polymeric microspheres encapsulating Salmonella enteritidis are administered to chickens to provide the chickens with sustained protection against S. enteritidis infections.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: November 7, 2006
    Assignee: Agency for Science, Technology and Research
    Inventors: Yi-Yan Yang, Jimmy Kwang, Xueqin Chen, Tai-Shung Chung, Wei Liu
  • Patent number: 7122207
    Abstract: A high drug load spheronized beadlet is provided wherein said beadlet comprises about 80% to 100% by weight of an acid labile medicament, preferably didanosine, about 0% to about 10% by weight of a disintegrant, and about 0% to about 10% by weight of a binder selected from the group consisting of sodium carboxymethylcellulose, hydroxypropylmethylcellulose, potassium alginate, and partially pregelatinized corn starch. A high drug load pharmaceutical composition, comprising the beadlet, with an enteric coating disposed thereon, is also provided.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: October 17, 2006
    Assignee: Bristol-Myers Squibb Company
    Inventors: Ismat Ullah, Gary J Wiley
  • Patent number: 7118762
    Abstract: A controlled release formulation of lipoic acid is disclosed. The lipoic acid is combined with excipient materials in such a way that those materials provide for gradual release of the lipoic acid in a manner which makes it possible to substantially increase the period of time over which therapeutic levels of lipoic acid are maintained relative to a quick release formulation. These features make it possible to use lipoic acid to reduce serum glucose levels and maintain those levels over time thereby obtaining a range of desired therapeutic results.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: October 10, 2006
    Assignee: Medical Research Institute
    Inventor: Edward A. Byrd
  • Patent number: 7115281
    Abstract: The invention relates to processes for preparing, and pharmaceutical compositions of, modafinil dosage forms for oral administration. The dosage forms include a mixture of coarse and fine particles of modafinil. The process for preparing modafinil oral dosage forms includes forming a dosage form that includes about 7%–25% by weight of modafinil particles having diameters greater than 220 ?m and about 75%–93% by weight of modafinil particles having diameters less than 220 ?m.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: October 3, 2006
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Romi Barat Singh, Pannanchukunnath Manoj Kumar, Vishnubhotla Nagaprasad, Sunilendu Bhushan Roy, Rajiv Malik
  • Patent number: 7108866
    Abstract: A controlled-release Galenical preparation of pharmaceutically acceptable Diltiazem including the pharmaceutically acceptable salts thereof, suitable for evening dosing every 24 hours containing from about 120 mg to about 540 mg or more (as desired) of the form of Diltiazem associated with excipients to provide controlled (sustained) release of the form of Diltiazem for providing a Cmax of Diltiazem in the blood at between about 10 hours and about 15 hours after administration, the preparation comprising the form of Diltiazem in oral sustained-release dosage form in which the Diltiazem is adapted to be released after administration over a prolonged period of time and exhibits when given to humans (i) a higher bioavailability when given at night compared to when given in the morning without food according to FDA guidelines or criteria and (ii) bioequivalence when given in the morning with and without food according to the same FDA guidelines or criteria.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: September 19, 2006
    Assignee: Biovall Laboratories International SRL
    Inventors: Kenneth Stephen Albert, Paul José Maes
  • Patent number: 7109166
    Abstract: This invention is directed to a sustained release composition comprised of Compound (A) having the formula or a pharmaceutically acceptable salt thereof, and a copolymer comprised of poly-(I)-lactic-glycolic-tartaric acid wherein the amino group of Compound (A) is ionically bound to a carboxyl group of the copolymer and wherein further the composition may be made into a sustained release pharmaceutical composition with pharmaceutically acceptable carrier(s).
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: September 19, 2006
    Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques, SAS
    Inventor: Jacques-Pierre Moreau
  • Patent number: 7108861
    Abstract: Disclosed are environmentally benign crop protection compounds that interfere with the attachment of a broad range of plant pathogens to plant cells surfaces.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: September 19, 2006
    Assignee: Cernofina, LLC
    Inventors: Randall S. Alberte, Richard C. Zimmerman
  • Patent number: 7087249
    Abstract: The invention relates to the use of one or more antimicrobial metals preferably selected from silver, gold, platinum, and palladium but most preferably silver, formed with atomic disorder, and preferably in a nanocrystalline form, for reducing inflammation or infection of the mucosal membrane. The antimicrobial metal may be formulated as, or used in the form of, a nanocrystalline coating of one or more antimicrobial or noble metals, a nanocrystalline powder of one or more antimicrobial or noble metals, or a liquid or solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial or noble metals.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: August 8, 2006
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Antony George Naylor, Peter Howard Moxham
  • Patent number: 7087661
    Abstract: The present invention provides compounds and materials that reduce the accumulation of microorganisms a surface, by interfering with the attachment of the organisms to the surface. The compounds and materials are thus useful in preventing the formation of biofilms on surfaces in health-related environments. By preventing the formation of biofilms, the compounds formulated according to the present invention can be used in the fabrication of grafts, implants, medical devices in order to prevent infection thereof. The compounds formulated according to the present invention display an additional anticoagulant property, permitting their use in settings where decrease in blood coagulability is desirable.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: August 8, 2006
    Assignee: Cernofina, LLC
    Inventors: Randall S. Alberte, Richard C. Zimmerman
  • Patent number: 7087247
    Abstract: The invention relates to novel absorbable polyesters, produced by ring-opening polymerisation of hydroxycarboxylic acids in the presence of a polyol containing an electrolyte, in an extruder. In particular, the invention relates to novel polylactide glycolide polyesters which are essentially free of dextran sulphate and which are produced by ring-opening polymerisation of lactide and glycolide in the presence of dextran sulphate in the extruder; to the production of the same and to their use in depot medicaments.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: August 8, 2006
    Assignee: Creative Peptide Sweden AB
    Inventors: Youxin Li, Detlef Mohr, Tim Seiffert
  • Patent number: 7083808
    Abstract: The invention is directed to oral modified/controlled release methylphenidate formulations which provide a rapid initial onset of effect and a prolonged duration of effect. Preferably, the peak concentration is lower than that provided by the reference standard for immediate release methylphenidate formulations, and the duration of effect falls rapidly at the end of the dosing interval so as not to affect the appetite of the patient at dinner nor the patient's sleep thereafter.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 1, 2006
    Assignee: Euro-Celtique S.A.
    Inventors: Paul D. Goldenheim, Richard S. Sackler, Thinnayam N. Krishnamurthy, Andrew Darke, Benjamin Oshlaci
  • Patent number: 7070803
    Abstract: Novel controlled release pharmaceutical compositions for oral use containing midodrine and/or its active metabolite desglymidodrine. The novel compositions are designed to release midodrine and/or desglymidodrine after oral intake in a manner which enables absorption to take place in the gastrointestinal tract so that a relatively fast peak plasma concentration of the active metabolite desglymidodrine is obtained followed by a prolonged and relatively constant plasma concentration of desglymidodrine. The novel compositions may be designed for administration once or twice daily, i.e. a therapeutically effective concentration of desglymidodrine is maintained for a period of at least 10-16 hours followed by a wash out period of about 8-12 hours in order to avoid the well-known midodrine related side effect with respect to supine hypertension. The therapeutically effective concentration of desglymidodrine is regarded as a plasma concentration of desglymidodrine of at least about 3 ng/ml.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 4, 2006
    Assignee: Nycomed Austria GmbH
    Inventors: Annette Skinhøj, Peder Mohr Olsen, Poul Bertelsen
  • Patent number: 7067153
    Abstract: A process for making hydrophobicized powders of micro- and/or nanocapsules involving the steps of: (a) providing an aqueous polymer solution containing at least one active ingredient and at least one hydrophilic polymer; (b) providing an oil component heated to a temperature above a gel point of the aqueous polymer solution; (c) dispersing (a) in (b) in the presence of a water-in-oil emulsifier to form a dispersion; (d) cooling the dispersion to a temperature below the gel point of the aqueous polymer solution to form micro- and/or nanocapsules containing the active ingredient encapsulated therein; (e) harvesting the micro- and/or nanocapsules from the dispersion; and (f) contacting the micro- and/or nanocapsules with an oil-absorbing auxiliary ingredient.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: June 27, 2006
    Assignee: Cognis France S.A.
    Inventor: Philippe Grisoni
  • Patent number: 7048945
    Abstract: A pharmaceutical dosage form such as a capsule capable of delivering therapeutic agents into the body in a time-controlled or position-controlled pulsatile release fashion, is composed of a multitude of multicoated particulates (beads, pellets, granules, etc.) made of one or more populations of beads. Each of these beads except an immediate release bead has at least two coated membrane barriers. One of the membrane barriers is composed of an enteric polymer while the second membrane barrier is composed of a mixture of water insoluble polymer and an enteric polymer. The composition and the thickness of the polymeric membrane barriers determine the lag time and duration of drug release from each of the bead populations. Optionally, an organic acid containing intermediate membrane may be applied for further modifying the lag time and/or the duration of drug release.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 23, 2006
    Assignee: Eurand Pharamaceuticals, Ltd.
    Inventors: Phillip J. Percel, Krishna S. Vishnupad, Gopi M. Venkatesh, Der Yang Lee
  • Patent number: 7041315
    Abstract: The invention concerns, film-forming compositions containing pectin, at least one additional film-forming polymer and a setting system for use in pharmaceutical, veterinary, food, cosmetic or other products like films for wrapping food, aspics or jellies, preferably for predosed formulations like soft or hard capsules, as well as aqueous solutions of the composition for the manufacturing of said products.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: May 9, 2006
    Assignee: Warner Lambert Company
    Inventors: Robert Anthony Scott, Dominique Cade, Xiongwei He
  • Patent number: 7030162
    Abstract: The invention is directed to pharmaceutical compositions useful in the treatment of migraine. The compositions contain metoclopramide and one or more NSAIDs in unit dosage form. By selecting NSAIDs that are non-acidic or segregating the metoclopramide and NSAID, the storage life of the compositions has been increased. Also disclosed are coordinated dosage forms for the sequential release of drugs. The invention encompasses methods of treating migraine using any of these dosage forms.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: April 18, 2006
    Assignee: POZEN Inc.
    Inventors: John R. Plachetka, Zakauddin T. Chowhan
  • Patent number: 7029701
    Abstract: The invention relates to pharmaceutical compositions comprising omeprazole and aspirin wherein the combination is useful for the treatment and prevention of cardiovascular events including heart attacks and platelet aggregation leading to a potential cardiac event. A variety of drug delivery systems may be utilized to deliver the combination of active ingredients. The preferred delivery system utilizes a tablet or capsule containing an inert sugar core particle that is coated with subparticles of a coated omeprazole wherein the coating contains omeprazole, a binder, a surface active agent and a basifying agent along with a filler. The aspirin may be combined with this formulation to coat the sugar sphere or it may be part of a separate coating composition that forms a multilayer system that is ultimately coated with an enteric coating and then formed into the tablet or capsule by conventional means.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: April 18, 2006
    Assignee: Andrx Pharmaceuticals, LLC
    Inventor: Chih-Ming Chen
  • Patent number: 7025989
    Abstract: An antibiotic product is comprised of at least three delayed release dosages forms, each of which has a different release profile, with the Cmax for the antibiotic product being reached in less than about twelve hours.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: April 11, 2006
    Assignee: Advancis Pharmaceutical Corp.
    Inventors: Edward M. Rudnic, James D. Isbister, Donald J. Treacy, Jr., Sandra E. Wassink
  • Patent number: 7018645
    Abstract: A water soluble, biodegradable reverse thermal gelation system comprising a mixture of at least two types of tri-block copolymer components is disclosed. The tri-block copolymer components are made of a hydrophobic biodegradable polyester A-polymer block and a hydrophilic polyethylene glycol B-polymer block. The drug release and gel matrix erosion rates of the biodegradable reverse thermal gelation system may be modulated by various parameters such as the hydrophobic/hydrophilic component contents, polymer block concentrations, molecular weights and gelation temperatures, and weight ratios of the tri-block copolymer components in the mixture.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: March 28, 2006
    Assignee: Macromed, Inc.
    Inventors: Ai-Zhi Piao, Chung Shih
  • Patent number: 7019106
    Abstract: A process for producing a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular weight therein being not more than about 5% by weight, characterized by hydrolyzing a high molecular weight lactic acid polymer, placing the resultant solution comprising the hydrolyzed product under a condition capable of precipitating the objective lactic acid polymer, separating the precipitated lactic acid polymer and collecting them. The lactic acid polymer is useful as a matrix for sustained-release preparations. The sustained-release microcapsule preparation encapsulating a physiologically active substance can fully prevent the initial excessive release of the physiologically active substance from the microcapsules and keep a stable release rate over a long period of time.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: March 28, 2006
    Assignees: Wako Pure Chemical Industries, Ltd., Takeda Pharmaceutical Company Limited
    Inventors: Kohei Yamamoto, Tsutomu Tani, Takashi Aoki, Yoshio Hata
  • Patent number: 6991807
    Abstract: Disclosed are antibiotic products for delivering at least two different antibiotics, wherein the products are comprised of at least three or four dosage forms with different release profiles and the at least two different antibiotics comprise at least one protein synthesis inhibiting antibiotic and at least one non-protein synthesis inhibiting antibiotic.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: January 31, 2006
    Assignee: Advancis Pharmaceutical, Corp.
    Inventors: Edward M. Rudnic, James D. Isbister, Donald J. Treacy, Jr., Sandra E. Wassink
  • Patent number: 6989159
    Abstract: Once daily pharmaceutical compositions containing lithium carbonate in the form of coated granules.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: January 24, 2006
    Assignee: JDS Pharmaceuticals, LLC
    Inventor: Giulio Tarro
  • Patent number: 6960356
    Abstract: A pharmaceutical composition in the form of tablets or capsules provides a combination of temporal and spatial control of drug delivery to a patient for effective therapeutic results. The pharmaceutical composition comprises a drug, a gas generating component, a swelling agent, a viscolyzing agent, and optionally a gel forming polymer. The swelling agent belongs to a class of compounds known as superdisintegrants (e.g., cross-linked polyvinylpyrrolidone or sodium carboxymethylcellulose). The viscolyzing agent initially and the gel forming polymer thereafter form a hydrated gel matrix which entraps the gas, causing the tablet or capsule to be retained in the stomach or upper part of the small intestine (spatial control). At the same time, the hydrated gel matrix creates a tortuous diffusion path for the drug resulting in sustained release of the drug (temporal control). A preferred once daily ciprofloxacin formulation comprises 69.9% profloxacin base, 0.34% sodium alginate, 1.103% xanthan gum, 13.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: November 1, 2005
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Naresh Talwar, Himadri Sen, John N. Staniforth
  • Patent number: 6955821
    Abstract: The invention relates to a novel pharmaceutical sustained release formulation of guaifenesin and at least one additional drug ingredient. The formulation may comprise a hydrophilic polymer, preferably a hydroxypropyl methylcellulose, and a water-insoluble polymer, preferably an acrylic resin, in a ratio range of about one-to-one (1:1) to about nine-to-one (9:1), more preferably a range of about three-to-two (3:2) to about six-to-one (6:1), and most preferably in a range of about two-to-one (2:1) to about four-to-one (4:1) by weight. This formulation capable of providing therapeutically effective bioavailability of guaifenesin for at least twelve hours after dosing in a human subject. The invention also relates to a modified release product which has two portions: a first portion having an immediate release formulation of guaifenesin and a second portion having a sustained release formulation of guaifenesin, wherein one or both portions has at least one additional drug ingredient.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: October 18, 2005
    Assignee: Adams Laboratories, Inc.
    Inventors: Robert D. Davis, Ralph W. Blume, Donald Jeffrey Keyser
  • Patent number: 6956099
    Abstract: Copolymers having linked internal polyether blocks and internal polyamide blocks have advantageous physical properties and solvent-gelling abilities. The copolymer may be prepared from a reaction mixture that contains 1,4-cyclohexane dicarboxylic acid (CHDA) and poly(alkyleneoxy) diamine (PAODA). Optionally, the reaction mixture contains no monofunctional compound reactive with either amine or carboxylic acid groups, however some of this monofunctional compound may be present. Dimer diamine and/or dimer acid may be present in the reaction mixture. A copolymer may also be prepared from a reaction mixture containing dimer acid and at least two diamine compound(s) including PAODA and short-chain aliphatic diamine having 2-6 carbons (SDA), wherein: a) the reaction mixture comprises x grams of PAODA and y grams of SDA, and x/(x+y) is 0.8-0.98; b) the reaction mixture weighs z grams, and x/z is at least 0.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: October 18, 2005
    Assignee: Arizona Chemical Company
    Inventor: Mark S. Pavlin
  • Patent number: 6946145
    Abstract: Block copolymers based on poly(ortho esters) containing amine groups. These block copolymers have both hydrophilic and hydrophobic blocks. They form micelles in aqueous solution, making them suitable for encapsulation or solubilization of hydrophobic or water-insoluble materials; and they also form bioerodible matrices for the sustained release of active agents.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: September 20, 2005
    Assignee: A.P. Pharma, Inc.
    Inventors: Steven Y. Ng, Jorge Heller
  • Patent number: 6933380
    Abstract: The present invention provides low-residual-solvent containing excipients with residual solvent less than <3000 ppm. Most of the excipients are required to first be modified to become more water absorbing such as by attaching a water absorbing radical, e.g., (—CH2COONa) to the carbinol groups (—CH2OH) of the excipients to form a —CH2—O—CH2COONa linkage. The linkage of the water-absorbing groups to e excipients improves the water absorbing property of the excipients, which facilitates the replacing residual solvent with water. The residual solvent can be extracted from the excipient by way of mixing with a solvent/water solution containing (1) about 75-95% (v/v) isopropanol and about 5-25% water (v/v); (2) about 65-95% acetone and about 5-35% water; and (3) about 60-85% methanol and about 15-40% water.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: August 23, 2005
    Assignee: Yung-Zip Chemical Ind. Co., Ltd.
    Inventors: Yun-Peng Huang, Fangchan Lee, Jer-Yen Shaw
  • Patent number: 6929804
    Abstract: An anti-fungal product for delivering at least two different anti-fungals that is comprised of three dosage forms with different release profiles with each anti-fungal being present in at least one of the dosage forms.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: August 16, 2005
    Assignee: Advancis Pharmaceutical Corp.
    Inventors: Edward M. Rudnic, James D. Isbister, Donald J. Treacy, Jr., Sandra E. Wassink
  • Patent number: 6929803
    Abstract: A dosage form comprising a gelatin capsule formed with a composite wall and containing a liquid, active agent formulation where the wall comprises a barrier layer formed over the external surface of the gelatin capsule, an expandable layer formed over the barrier layer and a semipermeable layer formed over the expandable layer is described. The dosage forms and methods provide for the conversion of standard gelatin, liquid formulation capsules into controlled, release dosage forms that permit the controlled release of the active agent into the environment of use over time.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: August 16, 2005
    Assignee: Alza Corporation
    Inventors: Patrick S. L. Wong, Liang C. Dong, Jiansheng Wan
  • Patent number: 6929797
    Abstract: The present invention is directed to a conjugate which includes at least one vitamin D moiety thereof and at least one targeting molecule moiety to pharmaceutical compositions of the conjugate, and to methods for using the conjugate for target-specific delivery of vitamin D or analogs thereof to tissues in need thereof. When a particularly preferred form is administered to a patient, the targeting molecule component of the conjugate of this invention seeks out and binds to a tissue of interest, such as bone or tumor tissue, where the vitamin D has a therapeutic effect.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 16, 2005
    Assignee: Bone Care International, Inc.
    Inventors: Richard B. Mazess, Charles W. Bishop
  • Patent number: 6926907
    Abstract: The present invention is directed to drug dosage forms that release an agent that raises the pH of a patient's gastrointestinal tract, followed by a non-steroidal anti-inflammatory drug. The dosage form is designed so that the NSAID is not released until the intragastric pH has been raised to a safe level. The invention also encompasses methods of treating patients by administering this coordinated release, gastroprotective, antiarthritic/analgesic combination unit dosage form to achieve pain and symptom relief with a reduced risk of developing gastrointestinal damage such as ulcers, erosions and hemorrhages.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: August 9, 2005
    Assignee: Pozen Inc.
    Inventor: John R. Plachetka
  • Patent number: 6923988
    Abstract: The present invention provides solid pharmaceutical compositions for improved delivery of a wide variety of pharmaceutical active ingredients contained therein or separately administered. In one embodiment, the solid pharmaceutical composition includes a solid carrier, the solid carrier including a substrate and an encapsulation coat on the substrate. The encapsulation coat can include different combinations of pharmaceutical active ingredients, hydrophilic surfactant, lipophilic surfactants and triglycerides. In another embodiment, the solid pharmaceutical composition includes a solid carrier, the solid carrier being formed of different combinations of pharmaceutical active ingredients, hydrophilic surfactants, lipophilic surfactants and triglycerides. The compositions of the present invention can be used for improved delivery of hydrophilic or hydrophobic pharmaceutical active ingredients, such as drugs, nutritional agents, cosmeceuticals and diagnostic agents.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: August 2, 2005
    Assignee: Lipocine, Inc.
    Inventors: Mahesh V. Patel, Feng-Jing Chen
  • Patent number: 6913768
    Abstract: A pharmaceutical composition comprises a once-a-day sustained release formulation of at least one amphetamine salt which provides mean plasma concentration profile aspects in human ADHD patients which are substantially the same as that provided by ADDERALL XR® type pulsatile formulations.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: July 5, 2005
    Assignee: Shire Laboratories, Inc.
    Inventors: Richard A. Couch, Beth A. Burnside, Rong-Kun Chang
  • Patent number: 6911217
    Abstract: A controlled release bead comprises: (i) a core unit of a substantially water-soluble or water-swellable inert material; (ii) a first layer on the core unit of a substantially water-insoluble polymer; (iii) a second layer covering the first layer and containing an active ingredient; and (iv) a third layer of polymer on the second layer effective for controlled release of the active ingredient, wherein the first layer is adapted to control water penetration into the core. A method of producing the controlled release bead is also disclosed.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: June 28, 2005
    Assignee: Pharmacia AB
    Inventors: Torkel Gren, Anders Ringberg, Martin Wikberg, Randy J. Wald
  • Patent number: 6905708
    Abstract: A once a day bupropion hydrochloride formulation is disclosed
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: June 14, 2005
    Assignee: ANDRX Pharmaceuticals, Inc.
    Inventors: Boyong Li, Avinash Nangia, Chih Ming Chen, Xiu Xiu Cheng
  • Patent number: 6902746
    Abstract: The present invention provides oral pharmaceutical compositions for acetic acid class of non-steroidal anti-inflammatory drug (NSAID), particularly ketorolac. The pharmaceutical composition contains a core, a drug layer (which comprises the drug, a binder, and a disintegrant), a protecting layer, and an enteric coating layer. The oral pharmaceutical compositons are particularly useful for treating patients with moderate to acute pain. The present invention also provides a method for making the pharmaceutical compositions and a method for using the pharmaceutical compositions.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 7, 2005
    Assignee: Yung Shin Pharmaceutical Industrial Co., Ltd.
    Inventors: Fang-Yu Lee, Shan-Chiung Chen, Ping-Kuen Chen, Han-Chiang Kuo
  • Patent number: 6899887
    Abstract: An osmotic delivery system has a membrane plug retention mechanism which can also be used to control the delivery rate of a beneficial agent from the osmotic delivery system. The osmotic delivery device includes an implant capsule containing a beneficial agent and an osmotic agent. Holes are formed along a side wall of the implant capsule at an open end of the capsule. When the membrane plug is inserted into the open end of the capsule, the membrane material swells into the holes in the capsule side wall creating a large frictional force which prevents expulsion of the membrane plug. A beneficial agent delivery rate of the osmotic delivery system is controllable by varying the size and number of the holes to change the amount of exposed surface area of the membrane plug. An increase in the surface area of the membrane plug exposed to the exterior environment causes a corresponding increase in the liquid permeation rate of the membrane and thus, increases the beneficial agent delivery rate.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: May 31, 2005
    Assignee: Micron Technology, Inc.
    Inventor: Rupal Ayer
  • Patent number: 6890561
    Abstract: There is provided an orally-administrable formulation for the controlled release or stable storage of a granulated isoflavone-enriched fraction or mixture of such fractions, comprising at least one granulated isoflavone-enriched fraction and at least one carrier, diluent or excipient therefor. Preferably, the formulation is characterized in that the total in vitro dissolution time of said formulation required for release of 75% of the active ingredients available from the formulation is between about 4 and about 18 hours, as determined by the U.S.P. XXIII paddle method at a paddle speed of 75 rpm, using simulated intestinal fluid without the digestive enzymes normally found in intestinal fluid, at pH 6.8, and a temperature of 37° C. A process for the preparation of such a formulation is also provided.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: May 10, 2005
    Assignee: Bio Dar Ltd.
    Inventors: Yoav Blatt, Oded Arad, Eugene Kimelman, David Cohen, Rika Pinto, Avner Rotman
  • Patent number: 6887492
    Abstract: The present invention is an orally administered pharmaceutical composition that provides for the controlled release of magnesium. The composition has an interactive agent component and a magnesium component which has an enteric coating that controls the release of the magnesium until the composition is in the small intestine or colon. The other component is released in the stomach and is substantially absorbed prior to the release of the magnesium component. Normally, the interactive agent component decreases the absorption of magnesium when the two components are released simultaneously in the gastrointestinal tract.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: May 3, 2005
    Assignee: Leiner Health Services Corp.
    Inventors: Robert A. Kay, Larry K. Thomas
  • Patent number: 6884433
    Abstract: Sustained release formulation containing tacrolimus or its hydrate is provided. The time (T63.2%) required for 63.2% of the maximum amount of tacrolimus or its hydrate to be dissolved is 0.7 to 15 hours. The time is measured in accordance to the Japanes Pharmacopocia, the 13-th edition, Dissolution Test, No. 2 (Puddles method, 50 rpm) using an aqueous 0.005% hydroxypropyl cellulose solution. This aqueous test solution is adjusted to pH 4.5, accordingly. The formulation further comprises a solid base which is a water-soluble or water-insoluble polymer. The formulation is in the form of a powder, fine powder, granule, tablet or capsule. The formulation is administered to a patient once a day for preventing organ or tissue rejection by transplantation or autoimmune disease. In addition, a solid dispersion composition is provided. The solid dispersion comprises tacrolimus or its hydrate in a mixture containing water-soluble or water-insoluble polymer and an excipient.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: April 26, 2005
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Kazunari Yamashita, Eiji Hashimoto, Yukihiro Nomura, Fumio Shimojo, Shigeki Tamura, Takeo Hirose, Satoshi Ueda, Takashi Saitoh, Rinta Ibuki, Toshio Ideno
  • Patent number: 6884432
    Abstract: Microspheres for controlled release of a bioactive agent are disclosed, and in particular, blend, cross-linkable poly(propylene fumarate) for immobilization and controlled drug delivery. The microsphere includes poly(propylene fumarate), a polymeric material other than poly(propylene fumarate) (e.g., poly(lactic-co-glycolic acid)), and a bioactive agent. The bioactive agent is selected depending on the physiological effect desired. For example, in bone regeneration applications, the bioactive agent may be selected from osteoinductive agents, peptides, growth hormones, osteoconductive agents, cytokines and mixtures thereof. The bioactive agent is dispersed in the microsphere, the microsphere has a diameter in the range of 1 to 300 micrometers, the poly(propylene fumarate) and poly(lactic-co-glycolic acid) are distributed in the microsphere, and the microsphere releases the bioactive agent in a sustained manner after an initial burst release.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: April 26, 2005
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Michael J. Yaszemski, Bradford L. Currier, Lichun Lu, Xun Zhu, Esmaiel Jabbari, Diederik H. R. Kempen
  • Patent number: 6881420
    Abstract: The present invention provides oral dosage forms and compositions for administering antineoplastic agents, such as irinotecan, etoposide, paclitaxel, doxorubicin and vincristine, whose oral effectiveness is limited by pre-systemic and systemic deactivation in the GI tract. Gelling of the gastric retention vehicle composition, and in the case of solid forms concomitant expansion of the composition, retains the antineoplastic drug in the patient's stomach, minimizing pre-systemic and/or systemic deactivation of the drug.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 19, 2005
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Moshe Flashner-Barak, Vered Rosenberger, E. Itzhak Lerner
  • Patent number: 6875245
    Abstract: A resin composition is prepared by reacting components comprising dibasic acid, diamine, polyol and monoalcohol, wherein (a) at least 50 equivalent percent of the dibasic acid comprises polymerized fatty acid; (b) at least 50 equivalent percent of the diamine comprises ethylene diamine; (c) 10-60 equivalent percent of the total of the hydroxyl and amine equivalents provided by diamine, polyol and monoalcohol are provided by monoalcohol; and (d) no more than 50 equivalent percent of the total of the hydroxyl and amine equivalents provided by diamine, polyol and monoalcohol are provided by polyol. This resin composition may be formulated into, for example, personal care products, fragrance releasing products and candles.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: April 5, 2005
    Assignee: Arizona Chemical Company
    Inventor: Mark S. Pavlin
  • Patent number: 6869615
    Abstract: An oral solid dosage form includes a therapeutically effective amount of an NSAID and a proton pump inhibitor in an amount effective to inhibit or prevent gastrointestinal side effects normally associated with the NSAID. Also disclosed is a method of treating a human patient in need of antiinflammatory, analgesic and/or antipyretic therapy, comprising orally administering to the patient an oral pharmaceutical dosage form which includes a therapeutically effective amount of an NSAID and an amount of a proton pump inhibitor effective to substantially inhibit gastrointestinal side effects of the NSAID. The invention is further related to a method of prophylactically treating a human patient who is on a therapy known to have significant gastrointestinal side effects or is about to begin such a therapy, via concurrent administration of an NSAID and a proton pump inhibitor in a combination (single) oral dosage form.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: March 22, 2005
    Assignee: Andrx Labs LLC
    Inventors: Chih-Ming Chen, Unchalee Kositprapa
  • Patent number: 6866864
    Abstract: The present invention provides compositions and method of use for the prevention and treatment of vascular-related disorders such as vascular re-occlusion or restenosis post-coronary intervention with balloon angioplasty or stent procedures and diseases associated with pathological angiogenesis such as cancer, ocular or inflammatory diseases. More specifically, compositions and methods of the present invention involve the combination of the garlic-derived or related compounds and antioxidants.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: March 15, 2005
    Inventor: Ahmed Mousa
  • Patent number: 6866866
    Abstract: A composition for treating patients having non-insulin-dependent diabetes mellitus (NIDDM) by administering a controlled release oral solid dosage form containing preferably a biguanide drug such as metformin, on a once-a-day basis. The dosage form provides a mean time to maximum plasma concentration (Tmax) of the drug which occurs at 5.5 to 7.5 hours after oral administration on a once-a-day basis to human patients. Preferably, the dose of drug is administered at dinnertime to a patient in the fed state.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: March 15, 2005
    Assignee: Andrx Labs, LLC
    Inventors: Chih-Ming Chen, Xiu-Xiu Cheng, Steve Jan, Joseph Chou
  • Patent number: 6867181
    Abstract: A method of spherifying a sustained release ionic conjugate which contains a free carboxyl group-containing polymer and a free amino group-containing drug which are ionically bonded to each other.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: March 15, 2005
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques, S.A.S., Poly-Med, Incorporated
    Inventors: Shalaby Wahba Shalaby, Steven A. Jackson, Jacques-Pierre Moreau
  • Patent number: 6866860
    Abstract: The present invention is directed to medical devices or pharmaceutical composition, each containing a synthetic, biodegradable, biocompatible polymer that is the reaction product of a polybasic acid or derivative thereof, a monoglyceride, and a cationic polyol.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: March 15, 2005
    Assignee: Ethicon, Inc.
    Inventor: Aruna Nathan
  • Patent number: 6861068
    Abstract: A semi-solid delivery vehicle contains a polyorthoester and an excipient, and a semi-solid pharmaceutical composition contains an active agent and the delivery vehicle. The pharmaceutical composition may be a topical, syringable, or injectable formulation; and is suitable for local delivery of the active agent. Methods of treatment are also disclosed.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: March 1, 2005
    Assignee: A.P. Pharma, Inc.
    Inventors: Steven Y. Ng, Hui-Rong Shen, Jorge Heller
  • Patent number: 6858725
    Abstract: Granulation of microcrystalline cellulose with a granulating fluid consisting of water and a water-miscible, volatile, polar organic solvent yields porous granules which are comprised of particles that are larger than the ungranulated microcrystalline cellulose. This granulated microcrystalline cellulose is capable of cushioning controlled release particles and barrier coated particles from the compression forces used in tableting, thereby maintaining the physical integrity of the components of the tablet.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: February 22, 2005
    Assignee: R.P. Scherer Technologies, Inc.
    Inventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Christopher A. Sweriduk