Sustained Or Differential Release Type Patents (Class 514/964)
  • Patent number: 6165513
    Abstract: A novel oral dosage to be delivered to the stomach comprising a safe and effective amount of an active ingredient selected from the group consisting of emepronium bromidebromide, doxycycline, and other tetracyclines/antibiotics, iron preparations, quinidine, nonsteroidal anti-inflammatory drugs, alprenolol, ascorbic acid, captopril, theophylline, zidovoudine (AZT), bisphosphonates and mixtures thereof and pharmaceutically-acceptable excipients, wherein said oral dosage form is a generally oval form and film coated to facilitate rapid esophageal transit and avoid irritation in the mouth, buccal cavity, pharynx, and esophagus.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: December 26, 2000
    Assignee: The Procter & Gamble Co.
    Inventors: Richard John Dansereau, Petrus Jakobus Bekker
  • Patent number: 6143288
    Abstract: Described is (i) a method of repelling Musca domestica L.(Diptera:Muscidae) or Aedes aegyptae for a finite period of time from a three-dimensional space inhabitable by Musca domnestica L.(Diptera:Muscidae) or Aedes aegyptae consisting essentially of the step of exposing a three-dimensional space to an effective Musca domestica L.(Diptera:Muscidae) or Aedes aegyptae-repelling concentration and quantity of a geraniol-containing composition consisting essentially of 50-100% of geraniol with the remainder of the composition being a compound selected from the group consisting of citronellol and nerol and (ii) a method of attracting Musca domestica L.(Diptera:Muscidae) or Aedes aegyptae using lavender absolute, benzoin, dimethyl benzyl carbinyl acetate, jasmine absolute, racemic borneol, d-limonene and/or dihydrolinalool. The attractants taken alone or in combination find utility primarily as bait enhancers for acute toxins and/or trapping devices.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: November 7, 2000
    Assignees: International Flavors & Fragrances Inc., The University of Florida
    Inventors: Craig B. Warren, Jerry F. Butler, Richard A. Wilson, Braja D. Mookherjee, Leslie C. Smith, Anna Belle Marin
  • Patent number: 6136343
    Abstract: A sustained release pharmaceutical formulation includes a sustained release excipient including a gelling agent, an inert pharmaceutical diluent, an optional cationic cross-linking agent, and a medicament having moderate to poor solubility is disclosed. In certain embodiments, the sustained release excipient is granulated with a solution or suspension of a hydrophobic polymer in an amount effective to slow the hydration of the gelling agent when the formulation is exposed to an environmental fluid. In another embodiment, the tablet is coated with a hydrophobic polymer.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: October 24, 2000
    Assignee: Edward Mendell Co., Inc.
    Inventor: Anand R. Baichwal
  • Patent number: 6126967
    Abstract: An extended release acetaminophen composition comprises a plurality of discrete particles containing acetaminophen which, when contained within a gelatin capsule and assayed in a USP Apparatus I rotating basket at 50 rpm in 900 mL of phosphate buffer at pH 5.8 and 37.degree. C., exhibits about 40 percent to about 53 percent acetaminophen dissolution at one-half hour, about 50 percent to about 68 percent dissolution at 45 minutes, about 57 percent to about 77 percent acetaminophen dissolution at one hour, and about 82 percent to about 92 percent acetaminophen dissolution at two hours. After six hours, the contemplated extended release acetaminophen composition exhibits substantially complete dissolution. A process for treating a human patient with the extended release acetaminophen composition is also disclosed.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: October 3, 2000
    Assignee: Ascent Pediatrics
    Inventors: Emmett Clemente, Aloysius O. Anaebonam, Robert W. Mendes, Abdel A. Fawzy, Eric M. Morrel
  • Patent number: 6123961
    Abstract: A method for treating or preventing urinary incontinence and other motility disorders involving the urethrogenital tract, by administering to a mammal an effective amount of the R-isomers of 4-diethylamino-2-butynyl cyclohexylphenylglycolate and 4-ethylamino-2-butynyl cyclohexylphenylglycolate and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: September 26, 2000
    Assignee: Bridge Pharma, Inc.
    Inventor: A. K. Gunnar Aberg
  • Patent number: 6106821
    Abstract: The invention relates to fly attractant compositions that comprise at least one volatile short chain carboxylic acid, at least one organic sulfide and at least one nitrogen heterocycle. In a preferred embodiment the composition additionally comprises at least one ammonia-releasing compound. In a particularly preferred example, the composition is preparable by combining, for example, the carboxylic acid, the organic sulfide and the nitrogen heterocycle. The invention also relates to an insect trap comprising a means for retaining flies and an insect attractant composition of this invention. The trap is useful in commercial, residential and livestock facilities.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 22, 2000
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Thomas C. Baker, Allard A. Cosse
  • Patent number: 6083532
    Abstract: Depot drug formulations include the pharmaceutical itself and a three component release rate controlling matrix composition. The three components of the matrix composition are (1) a pH dependent gelling polymer such as an alginate component, (2) an enteric polymer component, such as Eudragit.RTM. L or S, and (3) a pH independent gelling polymer, such as hydroxy propyl methyl cellulose or polyethylene oxide. The drug release rate can be adjusted by changing the amount of one or more of these components of the composition.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: July 4, 2000
    Assignee: Duramed Pharmaceuticals, Inc.
    Inventors: Guohua Zhang, Prasad Pinnamaraju, Muhammad Ali
  • Patent number: 6074634
    Abstract: The present invention provides an composition for attracting noctuid and/or other lepidopteran species. Liquid and solid formulations are provided, along with methods for their use, for controlling or eliminating noctuid and/or other lepidopteran species, and/or protecting plants susceptible to noctuid and/or other lepidopteran species damage.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: June 13, 2000
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Juan D. Lopez, Jr., Ted N. Shaver, Kenneth R. Beerwinkle, Peter D. Lingren
  • Patent number: 6068981
    Abstract: A method of monitoring a therapeutic regimen in an animal, the method involving a) providing to the animal a therapeutic compound and a detectable compound that passes into the bloodstream, excretory system, or other tissue or body fluid in detectable form; b) after a period of time, following step (a), sufficient for passage of a detectable amount of the detectable compound into the body fluid or tissue, collecting a sample of the fluid or tissue from the animal; and c) measuring or detecting the detectable compound, or a detectable metabolite thereof, in the sample, wherein the detectable compound involves one member of a specific binding pair, and detection is carried out using the second member of the specific binding pair.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: May 30, 2000
    Assignee: Biocode, Inc.
    Inventors: James H. Rittenburg, Frank G. Angella, Michael G. Pappas
  • Patent number: 6060060
    Abstract: This invention relates to analgesic compositions obtained from the fruit of the Capsicum genus, in particular Capsicum annuum and more particularly to purees or extracts of sweet peppers. This invention further relates to therapeutic uses of such analgesic compositions.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: May 9, 2000
    Assignee: BMB Patent Holding Corporation
    Inventor: Barry Miles Belgorod
  • Patent number: 6046177
    Abstract: Sulfoalkyl ether cyclodextrin (SAE-CD) based controlled release pharmaceutical formulations are provided by the present invention. The present solid pharmaceutical formulations consist of a core comprising a physical mixture of one or more SAE-CD derivatives, an optional release rate modifier, a therapeutic agent, a major portion of which is not complexed to the SAE-CD, and an optional release rate modifying coating surrounding the core. The present formulations are advantageously easier to prepare than other SAE-CD based formulations in the art yet provide similar or improved effectiveness. The SAE-CD derivative is used to modify the bioavailability and/or rate of bioabsorption of therapeutic agents. Multi-layered, osmotic pump, coated, and uncoated tablet, minitablet, pellet, micropellet, particle, powder, and granule dosage forms are disclosed herein.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: April 4, 2000
    Assignee: Cydex, Inc.
    Inventors: Valentino J. Stella, Roger A. Rajewski, Venkatramana M. Rao, James W. McGinity, Gerold L. Mosher
  • Patent number: 6037374
    Abstract: Gel compositions of formic acid and a gelling agent such as fumed silica or polyacrylic acid have been prepared for controlling parasitic mites of honey bees. The gels provide slow-release capability and have been found effective against both Varroa jacobsoni and Acarapis woodi. They are advantageous in that they have improved handling characteristics and are safer than liquid formic acid, which is quite corrosive.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: March 14, 2000
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Jan P. Kochansky, Hachiro Shimanuki, Mark Francis Feldlaufer, Jeffery S. Pettis
  • Patent number: 6034101
    Abstract: A dosage form and a method are disclosed and claimed for administering a drug in a sustained and constantly ascending rate per unit time to provide an intended therapeutic effect while concomitantly lessening the development of unwanted effects.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: March 7, 2000
    Assignee: ALZA Corporation
    Inventors: Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks
  • Patent number: 6028113
    Abstract: Solid sanitizing compositions have advantages over corresponding liquids and powders. A solid sanitizing product can be contained within a plastic bottle with a label indicating that the contents have antimicrobial or deodorizing properties containing a non-flowable solid composition having greater than about 0.02 percent by weight antimicrobial compounds. The preferred solid sanitizing compositions consist essentially of an antimicrobial compound selected from the group consisting of quaternary ammonium salts, fatty amines and diamines, chlorhexidine gluconate, phenol, derivatives of phenol, parachloro metaxylenol and mixtures thereof, and between 0 and 99.98 percent by weight of a cleaning composition. The solid sanitizing compositions can be effectively used with solid dispensers. The solid dispensers have a bowl with a drain at the bottom and an upward pointing spray nozzle.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: February 22, 2000
    Assignee: Sunburst Chemicals, Inc.
    Inventor: William H. Scepanski
  • Patent number: 6004973
    Abstract: Disclosed are pharmaceutical compositions containing solid dispersions in the form of co-precipitates, which solid dispersions contain rapamycin and a carrier medium, and methods of treatment utilizing such pharmaceutical compositions.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: December 21, 1999
    Assignee: Novartis AG
    Inventors: Patrice Guitard, Barbara Haeberlin, Rainer Link, Friedrich Richter
  • Patent number: 6001346
    Abstract: A sprayable or solid biodegradable wax carrier for insect pheromones and a method for constant release rate of the pheromone from the biodegradable wax. A composition comprising a pheromone and paraffin wax formulated as an aqueous emulsion or a solid suitable for application to a surface of a tree or crop for mating disruption of insect pests. Pheromone is released by diffusion or by partitioning from the biodegradable wax carrier or by pheromone exposure due to the biodegradable wax carrier degradation.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: December 14, 1999
    Assignee: The Regents of the University of California
    Inventors: Michael Delwiche, John M. Krochta, Richard E. Rice, Cynthia Atterholt
  • Patent number: 5998365
    Abstract: A pharmaceutical composition in the form of a microemulsion preconcentrate comprising a cyclosporin dissolved in a solvent system further comprising a hydrophobic component, a hydrophilic component, and a surfactant, wherein either the hydrophobic component is selected from tocol, tocopherols, tocotrienols, and derivatives thereof, or the hydrophilic component is selected from propylene carbonate or polyethylene glycol having an average molecular weight of less than 1000.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: December 7, 1999
    Assignee: Bernard C. Sherman
    Inventor: Bernard Charles Sherman
  • Patent number: 5976547
    Abstract: The present invention relates to topical over-the-counter and prescription strength analgesic and antiphlogistic blended compositions which are useful for reducing inflammation and providing relief from both peripheral and central pain as well as to a flexible therapeutic wrap for topical delivery of said blended compositions. More particularly, the invention is a blended composition comprising from about 3% to about 30% by weight of extract of arnica montana in combination with an effective amount of one or more therapeutic or pharmaceutical agents selected from the group consisting of menthol crystal, camphor, oil of mint, eucalyptus oil, guaifenesin, non-steroidal anti-inflammatory medications, topical analgesics, or transdermal opioid analgesics blended in either a pluronic lecithin organogel (PLO) or a petrolatum base. The particular agents selected and the percent composition of each selected ingredient in a given blend being determined by the needs and sensitivities of the given patient.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: November 2, 1999
    Assignee: Niblick Pharmaceuticals, Inc.
    Inventors: Heidi K. Archer, Mitchell S. Pettit
  • Patent number: 5977183
    Abstract: Substantially solid (or nonflowable) antimicrobial compositions have advantages over corresponding liquids and powders. Such a composition may be contained within a plastic bottle with a label indicating that the contents have antimicrobial or deodorizing properties containing a substantially solid, non-flowable composition having greater than about 0.02 percent by weight antimicrobial compounds. The preferred compositions consist essentially of an antimicrobial compound selected from the group consisting of quaternary ammonium salts, fatty amines and diamines, chlorhexidine gluconate, phenol, derivatives of phenol, parachloro metaxylenol and mixtures thereof, and between 0 and 99.98 percent by weight of a cleaning composition. The compositions can be effectively used with solid dispensers. The solid dispensers have a bowl with a drain at the bottom and an upward pointing spray nozzle.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 2, 1999
    Assignee: Sunburst Chemicals, Inc.
    Inventor: William H. Scepanski
  • Patent number: 5958463
    Abstract: The present invention relates generally to the method for the production of liposomal microencapsulated boron-containing products to be used for agricultural formulations. More specifically, a new method of production of liposomal microencapsulated is disclosed for active agents such as pesticides. A lecithin is mixed with an organic solvent in a certain proportion so as to provide solutions with varied levels of solubilized lecithin. The particular solvent being used will depend on the amount of active agent (AA) desired in the final solution. The formulation of the lecithin/organic solvent mixture is then allowed to settle. After settling, the top layer is separated and saved, while the bottom layer is discarded. An AA is then added to form a concentrate that is added to water for vesicle formation. Boron-containing materials formulated according to the invention may now be applied to agricultural field crops and fruits.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: September 28, 1999
    Assignee: Agri-Tek, Inc.
    Inventors: Christopher G. Milne, Paulus P. Shelby, Jr.
  • Patent number: 5955103
    Abstract: A dosage form is disclosed for delivering an antiepileptic drug, which dosage form comprises a laminated wall for maintaining the integrity of the dosage form and of the antiepileptic drug.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: September 21, 1999
    Assignee: ALZA Corporation
    Inventors: Frank Jao, Patrick S. -L. Wong, Evangeline Cruz, Eduardo C. Sy, Anthony L. Kuczynski
  • Patent number: 5948440
    Abstract: A pharmaceutical composition in the form of a tablet for controlled release of an active ingredient comprises cefaclor, cephalexin, or their pharmaceutically acceptable hydrates, salts, or esters as active ingredient, and a mixture of hydrophilic polymers of different viscosity grades selected from the group consisting of at least one hydroxypropyl methylcellulose and at least one hydroxypropylcellulose. The composition optionally also contains one or more of a water soluble or water dispersible diluent. The quantities of the hydrophilic polymers and water soluble or water dispersible diluent are such that the therapeutically effective active ingredient is released at a rate suitable for twice daily administration of the pharmaceutical composition to human subjects. The tablets may also be coated with a rapidly dissolving water soluble polymeric film coat.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: September 7, 1999
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdish Arora, Girish Jain, Himadri Sen
  • Patent number: 5939380
    Abstract: Implant preparations capable of sustained action when inserted are comprised of powder of a natural lipoidal substance in thorough admixture with bioactive macromolecule, followed by compression under pressure into a disc or rod that can be broken and used in small pieces as well.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: August 17, 1999
    Inventor: Paul Yao-Cheung Wang
  • Patent number: 5928667
    Abstract: A drug delivery device comprising a single phase matrix of a rigid polymer and a flexible polymer, useful for sustained release of a pharmaceutically active ingredient, as well as a method for employing the same, are disclosed.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: July 27, 1999
    Assignee: University of Maryland
    Inventors: Joel Rosenblatt, Vivek Shenoy
  • Patent number: 5916552
    Abstract: A semi-solid deer attractant lure comprised of liquid deer urine plus a sufficient amount of flavorless gelatin to produce a semi-solid rubbery composition is disclosed. Also disclosed is a method of making and a method of using the deer attractant lure composition.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: June 29, 1999
    Inventor: Mark D. Perry
  • Patent number: 5914334
    Abstract: The present invention provides a stable gel formulation for topical treatment of skin conditions in humans. The stable gel formulation includes an active agent, having activity for treatment of acne and psoriasis, which is insoluble in water and a plurality of nonaqueous vehicles for both solubilizing said active agent and forming a gel therewith enabling topical application of the gel to a skin condition. The plurality of vehicles are each present in amounts, and in combination, to control release of the active agent from the gel to the skin condition.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: June 22, 1999
    Assignee: Allergan, Inc.
    Inventor: Prakash M. Charu
  • Patent number: 5910322
    Abstract: Pharmaceutical formulations for oral administration, comprising a matrix which comprises a .beta.-lactam antibiotic optionally in combination with a .beta.-lactamase inhibitor, granules in a delayed release form dispersed within the matrix, which comprise a .beta.-lactam antibiotic optionally in combination with a .beta.-lactamase inhibitor, the overall tablet formulation including a .beta.-lactam antibiotic and a .beta.-lactamase inhibitor.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: June 8, 1999
    Assignee: SmithKline Beecham p.l.c.
    Inventors: Ernest Lionel Gilbert Rivett, Francis Walter Grimmett, Michael William Hartnell
  • Patent number: 5902797
    Abstract: A nutritional supplement comprising approximately from about 5 to about 25 grams carbohydrate; approximately from about 1 to about 25 grams protein; and approximately from about 1 to about 10 grams fat, for use in treating low appetite that may result in weight loss, is described.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: May 11, 1999
    Assignees: Beth Israel Deaconess Medical Center, Medical Foods, Inc.
    Inventors: Stacey J. Bell, R. Armour Forse, Bruce R. Bistrian, Robert C. Jones
  • Patent number: 5888545
    Abstract: An oral administration carbamazepine medicament with a retarded active substance release is disclosed. An aqueous plasticised polymer dispersion is applied on carbamazepine crystals without causing formation of carbamazepine dihydrate. The carbamazepine crystals with their aqueous coating may be mixed with appropriate auxiliarly substances, shaped into divisible tablets or filled into capsules.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: March 30, 1999
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Karl-Friedrich Landgraf, Sabine Reiss, Eberhard Schubert
  • Patent number: 5889051
    Abstract: A stable solid dispersion of prostaglandin drug, particularly Misoprostol, (.+-.)methyl 7-?3(.alpha.)-hydroxy-2-.beta.-(4 (RS)-4-hydroxy-4-methyl-trans-1-octen-1-yl)-oxycyclopent-1.alpha.-yl!hepta noate, comprising ammonio methacrylate copolymers. The ammonio methacrylate copolymers comprise Eudragit RS series, Eudragit RL series, Eudragit S, Eudragit L, and the mixture thereof. The stable solid dispersion is a sustained release type.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: March 30, 1999
    Assignee: Development Center for Biotechnology
    Inventors: David Chen, Rong-Jer Tsay, Hue-In Lin, Shu-Bin Lu
  • Patent number: 5888930
    Abstract: A durable and sprayable controlled release bead of active ingredient in the pores of a polymeric micro-porous bead having an anisotropic pore structure of large pores in the interior and small pores at the surface, the gradation of pore sizes between the interior and the surface being continuous.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Bend Research, Inc.
    Inventors: Kelly L. Smith, Matthew F. Holmes, James W. Brooke
  • Patent number: 5879713
    Abstract: Delivery of bioactive molecules such as nucleic acid molecules encoding a protein can be significantly enhanced by immobilization of the bioactive molecule in a polymeric material adjacent to the cells where delivery is desired, where the bioactive molecule is encapsulated in a vehicle such as liposomes which facilitates transfer of the bioactive molecules into the targeted tissue. Targeting of the bioactive molecules can also be achieved by selection of an encapsulating medium of an appropriate size whereby the medium serves to deliver the molecules to a particular target. For example, encapsulation of nucleic acid molecules or biologically active proteins within biodegradable, biocompatible polymeric microparticles which are appropriate sized to infiltrate, but remain trapped within, the capillary beds and alveoli of the lungs can be used for targeted delivery to these regions of the body following administration to a patient by infusion or injection.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: March 9, 1999
    Assignee: Focal, Inc.
    Inventors: Laurence A. Roth, Stephen Jack Herman
  • Patent number: 5880150
    Abstract: An antimicrobial agent comprising allyl isothiocyanate (AIT) packaged in a packaging material having a structure wherein part of the pores of a porous packaging substrate is filled with, or said pores are partially or entirely narrowed by a resin impervious to AIT vapor, and a method for controlling the AIT vapor release speed comprising enclosing AIT in the above-mentioned packaging material. According to the present invention, the AIT vapor release speed can be controlled, whereby enabling sustained release of AIT vapor and persistent effect of antimicrobial action. In addition, the antimicrobial agent of the present invention can be widely applied to food industries and various other fields where breeding and reproduction of deleterious microorganisms pose problems, since it is economical, compact and easy to use.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: March 9, 1999
    Assignees: The Green Cross Corporation, Rengo Co., Ltd.
    Inventors: Masao Fujita, Kiyoshi Kamei, Kiyoko Kawazu, Yuichi Mizukami, Yasushi Sekiyama
  • Patent number: 5876750
    Abstract: A dosage form is disclosed for delivering an antiepileptic drug, which dosage form comprises a laminated wall for maintaining the integrity of the dosage form and of the antiepileptic drug.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 2, 1999
    Assignee: ALZA Corporation
    Inventors: Frank Jao, Patrick S.-L. Wong, Evangeline Cruz, Eduardo C. Sy, Anthony L. Kuczynski
  • Patent number: 5876756
    Abstract: A microcapsule contains a pharmaceutically effective amorphous water-soluble 2-piperazinone-1-acetic acid compound or salt thereof and a polymer binder and a method of preparing said microcapsule. The microcapsule is produced by dispersing in an aqueous phase a dispersion of the amorphous water-soluble 2-piperazinone-1-acetic acid compound or salt thereof in a solution of a polymer in an organic solvent to give an s/o/w type emulsion and subjecting the emulsion to in-water drying. The sustained-release microcapsule entraps 2-piperazinone-1-acetic acid compound or the salt thereof, as a drug, in high concentration, and in reducing the initial release of the drug, thereby reducing undesirable side effects of the drug.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 2, 1999
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shigeyuki Takada, Tomofumi Kurokawa, Susumu Iwasa
  • Patent number: 5874418
    Abstract: Sulfoalkyl ether-cyclodextrin (SAE-CD) based pharmaceutical formulations are provided by the present invention. These formulations comprise SAE-CD derivatives and a therapeutic agent, a major portion of which is not complexed to the SAE-CD. The present formulations are advantageously easier to prepare than other SAE-CD based formulations in the art yet provide similar or improved effectiveness. The SAE-CD derivative can be used to modify the bioavailability and/or rate of bioabsorption of therapeutic agents.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: February 23, 1999
    Assignee: Cydex, Inc.
    Inventors: Valentino Stella, Roger A. Rajewski, James W. McGinity
  • Patent number: 5874417
    Abstract: A composition of matter comprising a hyaluronate functionalized with a hydrazide at glucuronic acid sites of said hyaluronate, wherein the hydrazide is chosen from a group consisting of: monohydrazide and hydrazides comprising three or more amine groups.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: February 23, 1999
    Assignee: The Research Foundation of State University of New York
    Inventors: Glenn D. Prestwich, Dale M. Marecak
  • Patent number: 5871776
    Abstract: A nifedipine formulation for oral administration is described that provides controlled, constant release of the pharmaceutical for about twenty four hours after a short delay following oral administration. There is also provided a method for preparing a controlled release formulation of nifedipine, which method includes coating pellets with multiple nifedipine-containing layers, along with an outer controlled release coating comprised of a water permeable polymer and lubricant/glidant. The pellets are then cured at an elevated temperature over several days. A method of using the formulations of the present invention for the treatment of patients is also described.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: February 16, 1999
    Inventor: Atul M. Mehta
  • Patent number: 5869081
    Abstract: The present invention relates to a method of administering progesterone to a normogonadal or a functionally agonadal human female undergoing an assisted reproduction technique. The invention further provides a method of hormone replacement for a human female. In a preferred embodiment of the present invention, progesterone is provided by intravaginal administration of a progesterone-containing polysiloxane ring.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 9, 1999
    Assignee: The Population Council
    Inventors: Theodore Jackanicz, Horacio B. Croxatto Avoni, Leopoldo Glasser Drexler, Fernando Zegers-Hochschild
  • Patent number: 5869094
    Abstract: A solid form of oral administration of isosorbide 5-mononitrate with a controlled, pH-independent release of the active substance in the gastro-intestinal tract is constituted by a pellet coated with a depot layer and a release prolonging lacquer layer. The lacquer layer contains ethyl cellulose and polymethacrylate in a weight ratio from 3:1 to 3:2. The new form of administration is characterized in that it is less costly to produce.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: February 9, 1999
    Assignee: BYK Gulden Lomberg Chemische Fabrik GmbH
    Inventors: Cornelia Alida Maria Van Egmond, Andre Pullen, Sibo Wytse De Jong, Adrianus Petrus De Jong, Jan Bron
  • Patent number: 5861387
    Abstract: Methods of treatment and prevention of estrogen-related diseases, and of fertility control, include low dose (e.g. less than 50 nanomolar serum concentration) administration of certain anabolic steroids, progestins and other substantially non-masculinizing androgenic compounds. Sustained release formulations substantially free of organic solvent, and sustained release formulations for maintaining low serum levels of androgen are disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 19, 1999
    Assignee: Endorecherche Inc.
    Inventors: Fernand Labrie, Martin Lepage
  • Patent number: 5856271
    Abstract: The invention is a method of making a controlled release device that is free of defects. According to one aspect of the present invention, a method has the steps of first combining an active chemical with a dried carrier into a bound friable mixture followed by combining the bound friable mixture with a polymer preform prior to forming a device. According to another aspect of the present invention, a method has the steps of heating and mixing a casting urethane with an active chemical into a first solution, heating and mixing a trialkanolamine with a soft segment cross-linker into a second solution, and mixing the two solutions. A further aspect of the present invention is a composition of a casting urethane.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: January 5, 1999
    Assignee: Battelle Memorial Institute
    Inventors: Dominic C. Cataldo, Peter Van Voris
  • Patent number: 5853760
    Abstract: A device for the controlled release of active substances in liquid media from an active substance-containing matrix exhibiting active substance releasing-surfaces has, the active substance releasing surfaces of the matrix covered, at least partially, by an erodible mass of solids; the thickness of the erodible mass across its extent on the active substance releasing-areas is determined by gradients.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: December 29, 1998
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Karsten Cremer
  • Patent number: 5851579
    Abstract: The present invention sets forth an enteric coating composition comprising a blend ofa) an alkali-soluble acrylic latex polymer andb) an aqueous solution of ammonium or alkaline salts of cellulose polymers.The invention also sets forth a method for preparing an enterically-coated dosage form and a method for preparing the present compositions.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: December 22, 1998
    Assignee: Eastman Chemical Company
    Inventors: Stephen Hong-Wei Wu, Warren Kent Hopkins
  • Patent number: 5847010
    Abstract: The present invention is a method of preventing or ameliorating the episodic recurrence of MS, comprising administering an effective amount of selective phosphodiesterase inhibitors of Type IV, e.g., Rolipram, e.g., wherein the severity of the episodic recurrences is ameliorated or the time period between episodes is lengthened.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: December 8, 1998
    Assignee: Berlex Laboratories, Inc.
    Inventors: Joel Hedgpeth, Helmut Wachtel
  • Patent number: 5846563
    Abstract: A sustained release pharmaceutical formulation includes a sustained release excipient including a gelling agent, an inert pharmaceutical diluent, an optional cationic cross-linking agent, and a medicament having moderate to poor solubility is disclosed. In certain embodiments, the sustained release excipient is granulated with a solution or suspension of a hydrophobic polymer in an amount effective to slow the hydration of the gelling agent when the formulation is exposed to an environmental fluid. In another embodiment, the tablet is coated with a hydrophobic polymer.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: December 8, 1998
    Assignee: Edward Mendell Co., Inc.
    Inventor: Anand R. Baichwal
  • Patent number: 5820880
    Abstract: Depending on the antigen encapsulated, liposomal formulations are subject to instability in the presence of alum. Formulations containing a nonionic detergent as a stabilizing agent avoid this instability.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 13, 1998
    Assignees: The United States of America as represented by the Secretary of the Army, Jenner Technologies
    Inventors: Carl R. Alving, Jean M. Muderhwa
  • Patent number: 5814340
    Abstract: Methods of treatment and prevention of estrogen-related diseases, and of fertility control, include low dose (e.g. less than 50 nanomolar serum concentration) administration of certain anabolic steroids, progestins and other substantially non-masculinizing androgenic compounds. Sustained release formulations substantially free of organic solvent, and sustained release formulations for maintaining low serum levels of androgen are disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 29, 1998
    Assignee: Endorecherche Inc.
    Inventors: Fernand Labrie, Martin Lepage
  • Patent number: 5770231
    Abstract: The instant invention is related to a sustained-release microparticle produced by dissolving in a solvent an active agent and a biodegradable and biocompatible polymer to form an organic phase.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 23, 1998
    Assignees: Alkermes Controlled Therapeutics, Inc. II, Janssen Pharmaceutica
    Inventors: Jean Mesens, Michael E. Rickey, Thomas J. Atkins
  • Patent number: 5753639
    Abstract: A method of treatment or prevention of breast and endometrial cancer, osteoporosis and endometriosis in susceptible warm-blooded animals comprising administering a low dose of a progestin or other steroid derivative having androgenic activity and low masculinizing activity. Pharmaceutical compositions useful for such treatment and pharmaceutical kits containing such compositions are disclosed. An in vitro assay permitting specific measurements of androgenic activity of potentially useful compounds is also disclosed.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: May 19, 1998
    Assignee: Endorecherche Inc.
    Inventor: Fernand Labrie