Contains Solid Synthetic Resin Patents (Class 424/501)
  • Patent number: 8852640
    Abstract: Embodiments include a vehicle for delivery of nitric oxide comprising: a collection of micelles having an internal micelle core that comprises a polymer with N-diazeniumdiolate comprising NO complexed with secondary amines of the polymer. Embodiments include a method of making a nitric oxide vehicle comprising dissolving a polymer that comprises secondary amines in an aqueous solution and combining the polymer with nitric oxide in the solution to form a N-diazeniumdiolate comprising the nitric oxide complexed with the secondary amines, with the formation of the N-diazeniumdiolate causing the polymer to be at least partially insoluble in the solution and to form a collection of micelles that have an internal core that comprises N-diazeniumdiolate.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 7, 2014
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Jeffrey A. Hubbell, Yun Suk Jo, André van der Vlies
  • Publication number: 20140294986
    Abstract: Disclosed are biodegradable microspheres between 40 ?m and 200 ?m in diameter that are effectively retained in the anterior chamber of the eye without producing hyperemia. The microspheres generally contain a drug effective for the treatment of an ocular condition and include a biodegradable polymer matrix that can provide for the sustained (>7 day) release of the drug following administration to the anterior chamber of the eye. Methods for making and using the microspheres to treat an ocular condition are also disclosed.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 2, 2014
    Applicant: Allergan, Inc.
    Inventors: Hui Liu, Jinping Wan, Patrick M. Hughes
  • Patent number: 8846035
    Abstract: The present invention describes methods and tools for preparing a population of monodisperse polymer microparticles, which are of particular interest in the field of drug delivery.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 30, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Marcel Rene Bohmer, Johannes Antonius Maria Steenbakkers, Suzanna Helena Petronella Maria De Winter, Anne Bechet, Rudolf Verrijk
  • Patent number: 8846106
    Abstract: Compositions and methods for transport or release of therapeutic and diagnostic agents or metabolites or other analytes from cells, compartments within cells, or through cell layers or barriers are described. The compositions include a membrane barrier transport enhancing agent and are usually administered in combination with an enhancer and/or exposure to stimuli to effect disruption or altered permeability, transport or release. In a preferred embodiment, the compositions include compounds which disrupt endosomal membranes in response to the low pH in the endosomes but which are relatively inactive toward cell membranes, coupled directly or indirectly to a therapeutic or diagnostic agent. Other disruptive agents can also be used, responsive to stimuli and/or enhancers other than pH, such as light, electrical stimuli, electromagnetic stimuli, ultrasound, temperature, or combinations thereof.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 30, 2014
    Assignees: University of Washington, University of Massachusetts
    Inventors: Allan S. Hoffman, Patrick Stayton, Oliver W. Press, Niren Murthy, Chantal Lackey Reed, Lawrence A. Crum, Pierre D. Mourad, Tyrone M. Porter, David Tirrell
  • Publication number: 20140271903
    Abstract: The present invention relates to a methods for extending the period of filtering bleb survival and/or providing for long term bleb survival following Glaucoma Filtration Surgery by delivering an ALK-5 inhibitor to a wound area (the surgical site) of a patient's eye. More particularly, the present invention relates to a method for the controlled delivery of an ALK-5 inhibitor to patient's eye using a thermo-sensitive polymer formulation, wherein the ALK-5 inhibitor is first contained in the polymer formulation at a temperature sufficient to maintain the formulation as a liquid and then applied to the eye wound opening, wherein the formulation turns to a gel. The use of the thermo-sensitive gel with ALK-5 inhibitor contained therein, provides for longer term bleb survival following Glaucoma Filtration Surgery (GFS) on a patient's eye. Thus, the present invention is particularly effective in inhibiting ocular fibrotic wound response following GFS.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Vijaykumar Sutariya, Hiroshi Nakamura, Werner Geldenhuys
  • Patent number: 8834845
    Abstract: A bioactive PMMA (polymethylmethacrylate) bone cement contains a powder component and a reactive monomer liquid, wherein the powder component and the reactive monomer liquid when mixed with one another react with one another and form a polymer-based solid material. The powder component contains particulate polymer powder of polymethylmethacrylates; a radical starter; and anionic copolymer nanoparticles. The anionic copolymer nanoparticles are distributed in nano-particulate form within the particulate powder component or coated as a film on particles of the particulate polymer powder.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: September 16, 2014
    Assignee: InnoTERE GmbH
    Inventors: Berthold Nies, Werner Siol
  • Patent number: 8828445
    Abstract: The present invention relates to a method for preparing nano-particles, and more particularly, to a method for preparing nano-particles containing active materials in a simple and highly efficient manner through a grinding process.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 9, 2014
    Assignee: Bio-Synectics Inc.
    Inventors: Kab Sig Kim, Joo Won Park
  • Publication number: 20140248368
    Abstract: A powdery composition C1 contains for 100% of the mass: 5 to 70 mass % and more particularly 10 to 50 mass % of at least one compound of formula (I): R—O-(G)x-H, wherein R is a linear saturated aliphatic radical including 12 to 22 carbon atoms, G is the remainder of a reducing sugar selected from the group including glucose, xylose and arabinose, and x is a decimal number greater than or equal to 1 and lower than or equal to 10; 95 to 30 mass % and more particularly 90 to 50 mass % of one or more alcohols of formula (II): R?—OH, wherein R? is a linear saturated aliphatic radical including 12 to 22 carbon atoms identical to or different from R as defined in formula (I), wherein at least 90 vol % of the particles have a diameter lower than or equal to 250 micrometers, more particularly a diameter lower than or equal to 150 micrometers.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: SOCIETE D'EXPLOITATION DE PRODUITS POUR LES INDUSTRIES CHIMIQUES SEPPIC
    Inventors: Chantal AMALRIC, Alicia ROSO, Agnès GORCE
  • Patent number: 8821944
    Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: September 2, 2014
    Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella
  • Patent number: 8821870
    Abstract: Compositions and methods for treating dry age related macular degeneration (dry AMD) by administration to an intraocular location of an anti-neovascular agent (such as bevacizumab) in either a liquid or solid polymeric vehicle (or both), such as a biodegradable hyaluronic acid or PLGA (or PLA).
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 2, 2014
    Assignee: Allergan, Inc.
    Inventors: Michael R. Robinson, Wendy M. Blanda, Patrick M. Hughes, James A. Burke, Scott M. Whitcup
  • Publication number: 20140242158
    Abstract: The present invention relates to a granular pharmaceutical composition obtained by coating a nucleus with: (1) a layer containing a material having a damp-proofing function, and (2) a drug layer containing linaclotide, a pharmaceutically acceptable salt, or a hydrate thereof, and (3) a layer containing a material having a damp-proofing function. Also, the present invention relates to a method for manufacturing the granular pharmaceutical composition obtained by coating the nucleus with (1) the layer containing the material having a damp-proofing function, (2) the drug layer containing the linaclotide, the pharmaceutically acceptable salt, or the hydrate thereof, and (3) the layer containing the material having a damp-proofing function.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 28, 2014
    Applicant: Astellas Pharma, Inc.
    Inventors: Mare Nishiura, Kenichi Ashihara, Kanehira Imai, Atsushi Muro, Tsukasa Nishikawahara
  • Publication number: 20140234427
    Abstract: The invention provides a method of preventing or reducing the growth of crystals in a substance which is susceptible to crystal growth in which colloidal particles having an amphiphilic structure, e.g. Janus particles, are contacted with the substance. Colloidal particles suitable for use in the invention include cross-linked, colloidal materials formed from hydrophobic monomers such as acrylates or methacrylates and hydrophilic monomers such as those derived from acrylic and/or methacrylic acid. The colloidal particles find particular use in methods of cryopreservation of biological samples (e.g. cells, tissues or organs), as a texture modifier in frozen food products, in the inhibition of gas hydrate formation, and as scale inhibitors.
    Type: Application
    Filed: October 5, 2012
    Publication date: August 21, 2014
    Applicant: UNIVERSITY OF WARWICK
    Inventors: Matthew Ian Gibson, Stefan Antonius Franciscus Bon
  • Patent number: 8808743
    Abstract: Benzonatate resinates of weak acid ion exchange resins having the same distribution of butyl 4-aminobenzoate homologs as exist in the benzonatate listed in the F.D.A. Orange Book as Application No. N011210. These resinates, in simulated gastrointestinal dissolution, release essentially the same distribution of butyl-4 aminobenzoate homologs as exist in the benzonatate listed in the F.D.A. Orange Book as Application No. N011210.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: August 19, 2014
    Inventors: William Wayne Howard, Russell Francis Somma
  • Patent number: 8808752
    Abstract: Controlled release particles are obtained by dissolving a hydrophobic antibiotic compound in a hydrophobic polymerizable vinyl monomer without the presence of a solvent, thereby preparing a hydrophobic solution, the hydrophobic antibiotic compound having a melting point of 100° C. or less, a polar term ?p,compound of 2 to 8 [(J/cm3)1/2] of a solubility parameter (?) and a hydrogen bonding term ?h,compound of 5.5 to 9.5 [(J/cm3)1/2] of the solubility parameter (?), the solubility parameter (?) defined by Hansen and calculated by van Klevelen and Hoftyzer method; dispersing the hydrophobic solution in water; and polymerizing the polymerizable vinyl monomer in the presence of an oil-soluble initiator by radical polymerization, thereby producing a polymer having a polar term ?p,polymer of 5 to 7 [(J/cm3)1/2] and a hydrogen bonding term ?h,polymer of 8 to 10 [(J/cm3)1/2] of the solubility parameter (?).
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 19, 2014
    Assignee: Japan Envirochemicals, Ltd.
    Inventor: Junji Oshima
  • Patent number: 8802141
    Abstract: A delivery vehicle including a mixture of: a) an effective amount of an expander activatable by a wetting agent and, b) a treatment agent. The expander and treatment agent intermingled and compressed so as to form a substantially solid delivery vehicle. The solid delivery vehicle, on exposure to a volume of wetting agent forms a predetermined volume of a paste containing the treatment agent; and the volume of paste is adapted for delivery of the treatment agent.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: August 12, 2014
    Inventor: John Kohnke
  • Patent number: 8795694
    Abstract: The invention relates to a process for preparing PCL-comprising microparticles, to microparticles obtainable by said process, to gel hence obtained and to several uses of the gel such as for the preparation of a medicament for treating a skin abnormality or disfigurement, and/or for controlling bladder function and/or controlling gastric reflux and/or for treating erectile dysfunction and/or for treating vocal cords. The gel may also be used for cosmetic applications.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: August 5, 2014
    Assignee: Aqtis I.P. B.V.
    Inventors: Henderikus Supèr, Paul Willem Mijnen, Pieter Gerard Zijlstra, Dirk Wybe Grijpma
  • Publication number: 20140199352
    Abstract: The process for manufacturing porous nanoparticles disclosed herein includes feeding a dry-blended mixture of at least one resin and a neutralizing agent into a feed section of a screw extruder, injecting a surfactant solution downstream of the hopper, and adding an aqueous composition both directly after the surfactant solution as well as further downstream. Porous nanoparticles having a particle size of from about 50 nm to about 2 ?m and a pore diameter of from about 20 nm to about 400 nm may be continuously recovered from the extruder following this process.
    Type: Application
    Filed: January 14, 2013
    Publication date: July 17, 2014
    Applicant: XEROX CORPORATION
    Inventors: David John William LAWTON, Santiago FAUCHER
  • Patent number: 8778333
    Abstract: The present invention relates to injectable compositions comprising biocompatible, hydrophilic, non-toxic and substantially spherical microspheres associated with stem cells useful for tissue construction and generation. The invention also relates to methods of tissue construction and generation, for the treatment of various tissue damage and defects, using the injectable compositions.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: July 15, 2014
    Assignee: Biosphere Medical, Inc.
    Inventors: Jean-Marie Vogel, Egisto Boschetti
  • Publication number: 20140193508
    Abstract: Microparticles and nanoparticles and compositions thereof are provided. The microparticles and nanoparticles and compositions may be used for the treatment of musculoskeletal disease, such as osteoarthritis and injury.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Ambika Goel Bajpayee, Alan Grodzinsky, Cliff Richard Wong, Moungi G. Bawendi
  • Publication number: 20140193510
    Abstract: Described herein are polymer-agent conjugates and particles, which can be used, for example, in the treatment of cancer. Also described herein are mixtures, compositions and dosage forms containing the particles, methods of using the particles (e.g., to treat a disorder), kits including the polymer-agent conjugates and particles, methods of making the polymer-agent conjugates and particles, methods of storing the particles and methods of analyzing the particles.
    Type: Application
    Filed: February 13, 2014
    Publication date: July 10, 2014
    Applicant: CERULEAN PHARMA INC.
    Inventors: Scott Eliasof, Thomas C Crawford, Geeti Gangal, Lawrence Alan Reiter, Pei-Sze Ng
  • Patent number: 8771746
    Abstract: Colloidal suspensions comprising a therapeutic agent and squalene. Squalene binds to certain compounds, such as gacyclidine, much more tightly than other drug carriers, such as polylactic glycolic acid. Including squalene in the particulate phase sequesters the therapeutic agent and provides superior stability at room or body temperature.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: July 8, 2014
    Assignee: Otonomy, Inc.
    Inventors: John Vinton Schloss, Thomas Jay Lobl
  • Publication number: 20140186452
    Abstract: The present disclosure generally relates to a process for preparing therapeutic nanoparticles, where the process includes combining a therapeutic agent with an organic acid. The therapeutic nanoparticles may have, for example, improved drug loading and/or drug release properties.
    Type: Application
    Filed: September 16, 2013
    Publication date: July 3, 2014
    Applicant: BIND THERAPEUTICS, INC.
    Inventors: Maria Figueiredo, Erick Peeke, David Dewitt, Christina Van Geen Hoven, Greg Troiano, James Wright, Young-Ho Song, Hong Wang
  • Publication number: 20140186453
    Abstract: The present disclosure generally relates to therapeutic nanoparticles. Exemplary nanoparticles disclosed herein may include about 1 to about 20 weight percent of a mTOR inhibitor; and about 70 to about 99 weight percent biocompatible polymer.
    Type: Application
    Filed: November 27, 2013
    Publication date: July 3, 2014
    Applicant: BIND Therapeutics, Inc.
    Inventors: Stephen E. Zale, Greg Troiano, Mir Mukkaram Ali, Jeff Hrkach, James Wright
  • Patent number: 8758828
    Abstract: Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 24, 2014
    Assignee: Evonik Corporation
    Inventors: Peter Markland, Xi Zhang
  • Patent number: 8758827
    Abstract: A local system for the release of active principle is described which consists of approximately spherical or rotation symmetrical bodies which are composed essentially of polymethyl methacrylate or polymethyl methacrylate co-methyl acrylate, zirconium dioxide or barium sulphate and one or more pharmaceutical active principles, in particular antibiotics, and which are produced by radical polymerization, radical polymerization activators effective in the temperature range of 10-80° C. or residues of these polymerization activators from the groups of aromatic amines, heavy metal salts and barbiturates not being contained therein.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: June 24, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Klaus-Dieter Kuhn, Sebastian Vogt
  • Publication number: 20140170229
    Abstract: Biodegradable polymeric nanoparticles comprising an inner core formed of a photodynamic agent capable of being activated to generate cytotoxic singlet oxygen are prepared. These nanoparticles have anti-cell proliferation activity and are useful in treating both cancerous and non-cancerous conditions including actinic keratosis, psoriasis and acne vulgaris. Preferably, the photodynamic agent is a hypocrellin B derivative while the polymeric nanoparticle comprises polyglycolic acid, polylactic acid or poly(lactide-co-glycolide). Hypocrellin-comprising nanoparticles are demonstrated to be activated by light or hydrogen peroxide.
    Type: Application
    Filed: August 11, 2011
    Publication date: June 19, 2014
    Applicant: Quest Pharmatech Inc.
    Inventors: Azita Haddadi, Ragupathy Madiyalakan, Thomas Woo
  • Patent number: 8741351
    Abstract: The present invention relates to injectable compositions comprising biocompatible, swellable, substantially hydrophilic, non-toxic and substantially spherical polymeric material carriers which are capable of efficiently delivering bioactive therapeutic factor(s) for use in embolization drug therapy. The present invention further relates to methods of embolization gene therapy, particularly for the treatment of angiogenic and non-angiogenic-dependent diseases, using the injectable compositions.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: June 3, 2014
    Assignee: Biosphere Medical, Inc.
    Inventors: Jean-Marie Vogel, Egisto Boschetti
  • Publication number: 20140147510
    Abstract: Provided herein are methods of making and controlling multiphasic polymeric micro-components capable of shape-shifting. Such a multiphasic micro-component comprises a first phase (that can include a first polymer) and at least one additional phase distinct from said first phase (that can include a second polymer). One or more of the first phase and additional phase comprises a component that is responsive to an external stimulus. Thus, the micro-component exhibits a substantial physical deformation in response to: (i) the presence of the external stimulus or (ii) a change in the external stimulus. Exemplary external stimuli include temperature, pressure, light, pH, ionic strength, hydrophobicity/hydrophilicity, solvent, concentration, a stimulator chemical, sonic energy, electric energy, pressure, magnetic fields, and combinations thereof.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 29, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Joerg Lahann, Jaewon Yoon, Srijanani Bhaskar, Kyungjin Lee
  • Patent number: 8734849
    Abstract: The invention relates to an oral, multiparticle pharmaceutical dosage form containing pellets, the size of which ranges from 50 to 2500 ?m and which essentially consist of: a) an inner matrix layer containing an active substance which is a peptide or a protein, including the derivatives or conjugates thereof, and which is embedded in a matrix consisting of a polymer with mucoadhesive effect, and b) an outer film coating essentially consisting of an anionic polymer or copolymer, which can be optionally formulated with pharmaceutically conventional adjuvants, more particularly softening agents.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: May 27, 2014
    Assignee: Evonik Roehm GmbH
    Inventors: Rosario Lízio, Hans-Ulrich Petereit, Erna Roth, Inès Andres, Michael Damm
  • Patent number: 8728528
    Abstract: The disclosed processes for forming microparticles utilize low volumes of processing water while still providing microparticles having low residual solvent levels. The processes are adaptable to both continuous and batch processes using oil/water or water/oil or water/oil/water or oil/water/oil emulsions.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 20, 2014
    Assignee: Evonik Corporation
    Inventors: Danielle Biggs, Heather Nettles
  • Publication number: 20140134244
    Abstract: The present invention is concerned with novel pharmaceutical compositions of itraconazole which can be administered to a mammal suffering from a fungal infection, whereby a single such dosage form can be administered once daily, and in addition at any time of the day independently of the food taken in by said mammal. These novel compositions comprise particles obtainable by melt-extruding a mixture comprising itraconazole and an appropriate water-soluble polymer and subsequently milling said melt-extruded mixture.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 15, 2014
    Applicant: Janssen Pharmaceutica N.V.
    Inventors: Lieven E.C. Baert, Geert Verreck, Dany Thone
  • Patent number: 8722086
    Abstract: A multiparticulate dosage form formulated to make misuse more difficult containing least one active substance with potential for misuse (A), at least one synthetic or natural polymer (C), optionally at least one natural, semi-synthetic or synthetic wax (D), at least one disintegrant (E) and optionally one or more additional physiologically compatible excipients (B), wherein the individual particles of the dosage form display a breaking strength of at least 500 N and a release of active substance of at least 75% after 45 minutes measured according to Ph.Eur. in the paddle mixer with sinker in 600 ml of aqueous buffer solution with a pH value of 1.2 at 37° C. and 75 rpm.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: May 13, 2014
    Assignee: Gruenenthal GmbH
    Inventors: Elisabeth Arkenau-Marić, Johannes Bartholomaeus, Iris Ziegler, Marcel Haupts
  • Patent number: 8722097
    Abstract: Biocompatible microparticles include an ophthalmically active cyclic lipid component and a biodegradable polymer that is effective, when placed into the subconjunctival space, in facilitating release of the cyclic lipid component into the anterior and posterior segments of an eye for an extended period of time. The cyclic lipid component can be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. Or, the cyclic lipid component can be encapsulated by the polymeric component. The present microparticles include oil-in-water emulsified microparticles. The subconjunctivally administered microparticles can be used to treat or to reduce at least one symptom of an ocular condition, such as glaucoma or age related macular degeneration.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: May 13, 2014
    Assignee: Allergan, Inc.
    Inventors: James Chang, Patrick Hughes, Chin-Ming Chang
  • Publication number: 20140127311
    Abstract: The present invention provides biocompatible nano-polymer particles which are composed of a biocompatible polymer, a stabilizer and an active agent for the treatment of pulmonary hypertension or erectile dysfunction and which can be used to produce a pharmaceutical preparation for the treatment of pulmonary hypertension or erectile dysfunction. Biocompatible nano-polymer particles of this invention have a diameter ranging from 10 nm to 10 ?m auf, a stabilizing layer thickness between 0 and 50 nm, contain between 0 and 50% of an active agent for the treatment of pulmonary hypertension or erectile dysfunction, are nebulizable and continuously release the active agent over a period of up to 48 hours. Biocompatible nano-polymer particles of this invention can be synthesized for example using the emulsion technique known to the expert with subsequent solvent evaporation or via spray drying.
    Type: Application
    Filed: May 23, 2012
    Publication date: May 8, 2014
    Applicant: JUSTUS-LIEBIG-UNIVERSITAET GIESSEN
    Inventors: Moritz Beck-Broichsitter, Thomas Schmehl, Tobias Gessler, Thomas Kissel
  • Patent number: 8715741
    Abstract: Polymeric nanoparticles with a hydrophobic core and a hydrophilic shell are formed from: 1) N-isopropylacrylamide (NIPAAM), at a molar ratio of about 50% to about 90%, and preferably 60% for specific delivery routes such as oral or parenteral; either water-soluble vinyl derivatives like vinylpryolidone (VP) or vinyl acetate (VA), or water insoluble vinyl derivatives like methyl methacrylate (MMA) or styrene (ST), at a molar ratio of about 10% to about 30%; and acrylic acid (AA), at a molar ration of about 10% to about 30%.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 6, 2014
    Assignee: The Johns Hopkins University
    Inventors: Anirban Maitra, Georg Feldmann, Savita Bisht
  • Patent number: 8715739
    Abstract: Methods for preparing uniformly sized micropanicles, with an optional polymeric coating generally include: 1) providing nanoparticles, preferably having a size of between 1 nm and 100 nm; 2) adding a hydrophobic surface layer to the nanoparticles; 3) making a suspension of the hydrophobic nanoparticles and a polymerization initiator in an hydrophobic solvent; 4) dissolving a monomer in the hydrophobic solvent; 5) making an emulsion by dispersing droplets of the hydrophobic solvent in a continuous aqueous phase with an emulsifier; 6) sizing the first emulsion to provide a second emulsion of the same components in which the droplets are substantially uniform and between 2 and 20 um in size; 7) evaporating at least a substantial portion of the dispersed hydrophobic droplets to assemble nanoparticles to form micropanicles suspended now in the aqueous phase; 8) replacing the first surfactant with a second surfactant, which is preferably a polymerizable surfactant; 9) adding a polymerizable monomer to the aqueous p
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: May 6, 2014
    Assignee: Purdue Research Foundation
    Inventors: Gil U. Lee, Hao Shang, Won-Suk Chang
  • Publication number: 20140120169
    Abstract: A process for preparing polymeric composite particles includes the steps of preparing an oil phase containing a biodegradable polymer and a water phase containing a hydrophilic compound or nanoparticle and emulsifying the oil phase in the water phase to form emulsions. Then solvent is removed from the emulsions to prepare the particles in the form of capsules and spheres in sizes from 0.01 ?m (10 nm) to 50 ?m.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: Board of Trustees of Michigan State University
    Inventors: Ilsoon Lee, Shaowen Ji
  • Publication number: 20140120170
    Abstract: The present invention relates to micro- or nanoparticles comprising a polyesteramide (PEA) having a chemical formula described by structural formula (IV), Formula (IV) wherein —m+p varies from 0.9-0.1 and q varies from 0.1 to 0.9 —m+p+q=1 whereby m or p could be 0-n is about 5 to about 300; (pref 50-200) —R1 is independently selected from the group consisting of (C2-C20) alkylene, (C2-C20) alkenylene, —(R9—CO—O—R10—O—CO—R9)—, —CHR11—O—CO—R12—COOCR11— and combinations thereof; —R3 and R4 in a single backbone unit m or p, respectively, are independently selected from the group consisting of hydrogen, (C1C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, (C1-C6)alkyl, —(CH2)SH, —(CH2)2S(CH3), —CH2OH, —CH(OH)CH3, —(CH2)4NH3+, —(CH2)3NHC(?NH2+)NH2, —CH2COOH, —(CH2)COOH, —CH2—CO—NH2, —CH2CH2—CO—NH2, —CH2CH2COOH, CH3—CH2—CH(CH3)—, (CH3)2—CH—CH2—, H2N—(CH2)4—, Ph-CH2—, CH?C—CH2—, HO-p-Ph-CH2—, (CH3)2—CH—, Ph-NH—, NH—(CH2)3—C—, NH—CH?N—CH?C—CH2—.
    Type: Application
    Filed: June 25, 2012
    Publication date: May 1, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: George Mihov, John Andrew Zupancich
  • Patent number: 8709491
    Abstract: The invention relates to dosage forms that provide prolonged therapy. In particular, the invention relates to dosage forms including various pluralities of drug-containing resin particles. In a particular embodiment, the drug dosage form comprises a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles. The invention also relates to methods of making these dosage forms and methods of treating using these dosage forms.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: April 29, 2014
    Assignee: NEOS Terapeutics, LP
    Inventors: Mark Tengler, Russell McMahen
  • Patent number: 8703289
    Abstract: The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: April 22, 2014
    Assignee: JSR Corporation
    Inventors: Kouji Tamori, Tetsuo Fukuta, Mitsuhiro Murata, Masaru Ueno, Satoshi Katayose, Eiji Takamoto, Kiyoshi Kasai
  • Patent number: 8703204
    Abstract: A pharmaceutical composition comprises nanoparticles comprising a cholesteryl ester transfer protein inhibitor and a poorly aqueous soluble non-ionizable polymer.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: April 22, 2014
    Assignee: Bend Research, Inc.
    Inventors: Corey Jay Bloom, Marshall David Crew, Daniel Tod Smithey, Warren Kenyon Miller, Michael Mark Morgen
  • Patent number: 8697112
    Abstract: A method for treating a surface with a therapeutic agent is disclosed. The method comprises precipitating a therapeutic agent from a hydrophilic polymeric base layer with which the therapeutic agent has been complexed, to form a layer comprising microparticles of the therapeutic agent on the hydrophilic polymeric base layer, the hydrophilic polymeric base layer being grafted to the surface. Devices comprising a surface having a hydrophilic polymeric base layer comprising a hydrophilic polymer grafted to the surface and a layer comprising microparticles of a therapeutic agent disposed on and complexed with the hydrophilic polymeric base layer are also disclosed.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: April 15, 2014
    Assignee: Covalon Technologies
    Inventors: Vyacheslav Dudnyk, Valerio DiTizio
  • Patent number: 8697137
    Abstract: The present invention relates to injectable compositions comprising biocompatible, swellable, substantially hydrophilic, non-toxic and substantially spherical polymeric material carriers which are capable of efficiently delivering bioactive therapeutic factor(s) for use in embolization drug therapy. The present invention further relates to methods of embolization gene therapy, particularly for the treatment of angiogenic and non-angiogenic-dependent diseases, using the injectable compositions.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 15, 2014
    Assignee: Biosphere Medical, Inc.
    Inventors: Jean-Marie Vogel, Egisto Boschetti
  • Patent number: 8697120
    Abstract: A method for protection of tissues subject to ischemic and/or reperfusion damage is provided. The method includes administering to the tissue a composition comprising nanodevices. The nanodevices can take the form of, for example, polymeric nanoparticles or lipidic nanoparticles. The nanodevices also find use in methods for reducing ischemic injury in tissue at risk of such injury, such as heart and brain tissue.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: April 15, 2014
    Assignees: Johns Hopkins University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Corinne Bright, Rachel Bright, Eric Churchill, Kam W. Leong, Daria Mochly-Rosen
  • Publication number: 20140099263
    Abstract: Described herein are polymer-agent conjugates and particles, which can be used, for example, in the treatment of cancer. Also described herein are mixtures, compositions and dosage forms containing the particles, methods of using the particles (e.g., to treat a disorder), kits including the polymer-agent conjugates and particles, methods of making the polymer-agent conjugates and particles, methods of storing the particles and methods of analyzing the particles.
    Type: Application
    Filed: March 19, 2013
    Publication date: April 10, 2014
    Applicant: CERULEAN PHARMA INC.
    Inventors: Scott Eliasof, Thomas C. Crawford, Geeti Gangal, Lawrence Alan Reiter, Pei-Sze Ng
  • Publication number: 20140099382
    Abstract: Provided are low-volume, safe for injection formulations of dantrolene yielding significant advantages over the currently approved and marketed dantrolene for malignant hyperthermia (MH) threatening anesthetic crisis. Once dantrolene can be made immediately available to patients triggered of MH, the anesthesiologist will be able to focus exclusively on the management of the patient's physiologic status in this complex and evolving crisis, not on the laborious and time consuming reconstitution process of the rescue agent. The low volume, safe for injection formulations of dantrolene have significant advantages over currently used approaches to the prevention and treatment of pumphead, and other neurological, cognitive and motor dysfunction incident to iatrogenically or trauma induced situations of altered blood flow, including those incurred during surgical procedures involving CPB or related procedures, as well as those incurred during non-normothermic episodes caused iatrogenically or by disease.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Lyotropic Therapeutics, Inc.
    Inventors: David Anderson, Benjamin G. Cameransi, JR., Vincent M. Conklin
  • Patent number: 8679539
    Abstract: A process for preparing the drug-loaded cyanoacrylate nanoparticles is described. The cyanoacrylate nanoparticles which effectively deliver biological and therapeutic agents are synthesized by miniemulsion polymerization with surfactant, pluronic F127 or F68. Before initiation of polymerization, active agents with particularly highly hydrophobicity are dissolved in cyanoacrylate monomer. Compared with the drug-loaded polyalkylcyanoacrylate nanoparticles produced by emulsion polymerization, those produced by miniemulsion polymerization possess higher loading and encapsulation efficiencies. While the content of dissolved agents increases, furthermore, the loading and encapsulation efficiencies increase concurrently.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 25, 2014
    Assignee: Tong Shen Enterprise Co., Ltd.
    Inventors: Yu-Der Lee, Chi-Yu Huang, Chih-Ming Chen
  • Publication number: 20140065234
    Abstract: The present invention relates generally to vesicles such as liposomes, colloidosomes, and polymersomes, as well as techniques for making and using such vesicles. In some cases, the vesicles may be at least partially biocompatible and/or biodegradable. The vesicles may be formed, according to one aspect, by forming a multiple emulsion comprising a first droplet surrounded by a second droplet, which in turn is surrounded by a third fluid, where the second droplet comprises lipids and/or polymers, and removing fluid from the second droplet, e.g., through evaporation or diffusion, until a vesicle is formed. In certain aspects, the size of the vesicle may be controlled, e.g., through osmolarity, and in certain embodiments, the vesicle may be ruptured through a change in osmolarity. In some cases, the vesicle may contain other species, such as fluorescent molecules, microparticles, pharmaceutical agents, etc., which may be released upon rupture.
    Type: Application
    Filed: August 14, 2013
    Publication date: March 6, 2014
    Applicant: President and Fellows of Harvard College
    Inventors: Ho Cheung Shum, Daeyeon Lee, Insun Yoon, David A. Weitz, Jin-Woong Kim
  • Publication number: 20140065233
    Abstract: The present invention relates to elastic, hydrophilic and substantially spherical microspheres useful for dermal augmentation and tissue bulking. The invention provides injectable compositions comprising the microspheres and a biocompatible carrier for use in dermal augmentation. The present invention further provides methods of dermal augmentation and tissue bulking, particularly for the treatment of skin contour deficiencies, Gastro-esophageal reflux disease, urinary incontinence, and urinary reflux disease, using the injectable compositions.
    Type: Application
    Filed: November 8, 2013
    Publication date: March 6, 2014
    Applicant: Biosphere Medical, Inc.
    Inventors: Jean-Marie Vogel, Richard Thomas, Egisto Boschetti
  • Patent number: 8658215
    Abstract: The present invention relates to elastic, hydrophilic and substantially spherical microspheres useful for dermal augmentation and tissue bulking. The invention provides injectable compositions comprising the microspheres and a biocompatible carrier for use in dermal augmentation. The present invention further provides methods of dermal augmentation and tissue bulking, particularly for the treatment of skin contour deficiencies, Gastro-esophageal reflux disease, urinary incontinence, and urinary reflux disease, using the injectable compositions.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 25, 2014
    Assignee: Biospehere Medical, Inc.
    Inventors: Jean-Marie Vogel, Richard Thomas, Egisto Boschetti