Three Or More Amide Groups Are Attached Directly To The Same Benzene Ring By Nonionic Bonding Patents (Class 424/9.454)
  • Patent number: 9834504
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 5, 2017
    Assignee: GE Healthcare AS
    Inventors: Torfinn Haaland, Arne Askildsen, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum
  • Patent number: 9695113
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: July 4, 2017
    Assignee: GE Healthcare AS
    Inventors: Torfinn Haaland, Arne Askildsen, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum
  • Patent number: 9474808
    Abstract: The invention relates to industrial preparation of contrast agents, and further to an improved process for the purification of contrast agents. In particular, it relates to a process for reducing the salt content of compositions comprising an MR contrast agent or an X-ray contrast agent, such as a non-ionic iodinated monomeric compound or a non-ionic iodinated dimeric compound.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 25, 2016
    Assignee: GE HEALTHCARE AS
    Inventor: Aslaug Birkeland
  • Publication number: 20150093337
    Abstract: The invention relates to a coated medical device for rapid delivery of a therapeutic agent to a tissue in seconds to minutes. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent, a contrast agent, and an additive.
    Type: Application
    Filed: December 4, 2014
    Publication date: April 2, 2015
    Inventor: Lixiao Wang
  • Patent number: 8932561
    Abstract: The invention relates to a coated medical device for rapid delivery of a therapeutic agent to a tissue in seconds to minutes. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent, a contrast agent, and an additive.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 13, 2015
    Assignee: Lutonix, Inc.
    Inventor: Lixiao Wang
  • Publication number: 20140377187
    Abstract: A sclerosing embolizing hydrogel comprising from about 0.1% by weight to about 4.0% by weight of chitosan; from about 0.01 M to about 1 M of hydrochloric acid; from 0% by volume to about 40% by volume of iopamidol; from 0.5% by weight to about 25% by weight of ?-glycerophosphate disodium salt; and from about 0.05% by weight to about 4% by weight of sodium tetradecyl sulphate. Also a kit for synthesizing the hydrogel and a method using the hydrogel to treat a vascular defect in a subject.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Inventors: Sophie Lerouge, Giles Soulez, Ahmed Fatimi, Jean-Michel Coutu, Jean Raymond
  • Publication number: 20140363382
    Abstract: Implantable materials may be used in an iatrogenic site. Applications include radioopaque materials for fiducial marking.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventors: Patrick Campbell, Amarpreet S. Sawhney
  • Publication number: 20140322139
    Abstract: The invention relates to a composition comprising a non-ionic X-ray contrast agent in a pharmaceutically acceptable carrier, and particularly to a supersaturated X-ray composition comprising X-ray contrast agents with a high dissolution temperature in water. Particularly, the invention provides such composition which is stable, and wherein crystallisation during storage is avoided. In a preferred aspect the X-ray contrast agent is Ioforminol and the composition includes a nucleation- and growth inhibitor. The invention further relates to a process for the preparation of such stable diagnostic X-ray composition.
    Type: Application
    Filed: December 20, 2012
    Publication date: October 30, 2014
    Applicant: GE HEALTHCARE AS
    Inventors: Christian Glogard, Mikkel Thaning, Jan Cervenka
  • Publication number: 20140227192
    Abstract: The invention relates to a preparation for restenosis prevention. The preparations for restenosis prevention known as yet do not reach sufficient active agent concentrations in the affected sections of the vascular walls as higher doses cause undesirable side effects. The present invention is a preparation to which at least one antihyperplastic agent is added that has a distribution ratio between butanol and water .gtoreq.0.5. The lipophilic active agent is absorbed by the vascular wall fast and in sufficient quantity. The preparation may be a liquid that can pass through capillaries and may contain a contrast agent so that the active agent is transferred into the vascular wall without any additional effort while the usually required contrast radiograms are taken. The preparation may also be applied to a catheter.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: Bayer Intellectual Property Gmbh
    Inventors: Ulrich SPECK, Bruno SCHELLER
  • Publication number: 20140227194
    Abstract: The invention relates to a preparation for restenosis prevention. The preparations for restenosis prevention known as yet do not reach sufficient active agent concentrations in the affected sections of the vascular walls as higher doses cause undesirable side effects. The present invention is a preparation to which at least one antihyperplastic agent is added that has a distribution ratio between butanol and water .gtoreq.0.5. The lipophilic active agent is absorbed by the vascular wall fast and in sufficient quantity. The preparation may be a liquid that can pass through capillaries and may contain a contrast agent so that the active agent is transferred into the vascular wall without any additional effort while the usually required contrast radiograms are taken. The preparation may also be applied to a catheter.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: Bayer Intellectual Property Gmbh
    Inventors: Ulrich SPECK, Bruno SCHELLER
  • Publication number: 20140227193
    Abstract: The invention relates to a preparation for restenosis prevention. The preparations for restenosis prevention known as yet do not reach sufficient active agent concentrations in the affected sections of the vascular walls as higher doses cause undesirable side effects. The present invention is a preparation to which at least one antihyperplastic agent is added that has a distribution ratio between butanol and water .gtoreq.0.5. The lipophilic active agent is absorbed by the vascular wall fast and in sufficient quantity. The preparation may be a liquid that can pass through capillaries and may contain a contrast agent so that the active agent is transferred into the vascular wall without any additional effort while the usually required contrast radiograms are taken. The preparation may also be applied to a catheter.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: Bayer Intellectual Property Gmbh
    Inventors: Ulrich SPECK, Bruno SCHELLER
  • Patent number: 8709384
    Abstract: The present invention relates to compositions and methods for treating diseases and disorders including cancer and various other angiogenic-dependent diseases, vascular malfunctions, arteriovenous malformations (AVM), hemorrhagic processes and treatment of pain, in particular tumor-related pain by drug delivery and/or therapeutic embolization using microspheres. More particularly the invention relates to microspheres containing non-ionic contrast agents, to compositions comprising these microspheres, as well as methods for preparing and using such compositions for embolization therapy. The invention further relates to compositions and methods using detectable microspheres for targeted drug delivery, irrespective of whether embolization is also needed.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 29, 2014
    Assignee: Biosphere Medical, S.A.
    Inventor: Philippe Reb
  • Patent number: 8679460
    Abstract: The present invention generally relates to nonionic x-ray contrast media formulations, radiological compositions containing such agents and methods for x-ray visualization utilizing such compositions. The invention especially relates to injectable radiological compositions for x-ray visualization comprising a pharmaceutically acceptable vehicle and a mixture of a monomer, being a triiodo-substituted benzene nucleus, and a dimer, being two linked triiodo-substituted benzene nuclei, such that the mixture demonstrates favorable properties.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: March 25, 2014
    Assignee: Mallinckrodt LLC
    Inventors: Muthunadar P. Periasamy, Brian D. Doty
  • Publication number: 20140072518
    Abstract: The present disclosure is directed to a class of fluorinated copolymers, such as a PTFE copolymers, that can be dissolved in low toxicity solvents, such as Class III Solvents, and that enable the creation of stable water-in-solvent emulsions comprising the fluorinated copolymers dissolved in a low toxicity solvents and a hydrophilic agent (e.g., a therapeutic agent) dissolved in an aqueous solvent, such as water or saline.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Paul D. Drumheller, Theresa A. Holland
  • Publication number: 20140065076
    Abstract: Apparatus and methods are described herein for a container with a unit dose of a concentrated substance that can be diluted and orally consumed using the container. In some embodiments, an apparatus includes a container body that defines an opening in fluid communication with an interior of the container body. A cap is coupled to the container body and encloses the opening. A unit dose of a concentrated medicament or a concentrated contrast agent is disposed within the interior of the container body. The unit dose of concentrated medicament or contrast agent can be diluted to a select dilution strength with a volume of a liquid receivable through the opening and within the interior of the container body. In some embodiments, the apparatus can include a barrier member in which the container body and cap can be disposed to protect the medicament or contrast agent from light and/or moisture.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: OTSUKA PHARMACEUTICAL CO. LTD.
    Inventors: Scott Wayne Hollander, Joel Robert Timberlake, Marjory Kadash
  • Publication number: 20140065077
    Abstract: Apparatus and methods are described herein for a container with a unit dose of a concentrated substance that can be diluted and orally consumed using the container. In some embodiments, an apparatus includes a container body that defines an opening in fluid communication with an interior of the container body. A cap is coupled to the container body and encloses the opening. A unit dose of a concentrated medicament or a concentrated contrast agent is disposed within the interior of the container body. The unit dose of concentrated medicament or contrast agent can be diluted to a select dilution strength with a volume of a liquid receivable through the opening and within the interior of the container body. In some embodiments, the apparatus can include a barrier member in which the container body and cap can be disposed to protect the medicament or contrast agent from light and/or moisture.
    Type: Application
    Filed: July 3, 2013
    Publication date: March 6, 2014
    Inventors: Scott Wayne Hollander, Joel Robert Timberlake, Marjory Kadash
  • Publication number: 20130209370
    Abstract: The present invention teaches a micro-porous injectable, soft elastic, fully resorbable fibrin-based composition for use as a soft tissue lumen and void filler. The composition of the present application exhibits physical characteristics, such as mechanical properties, typically seen in elastomers and mechanical stability, which is superior to fibrin alone. A variety of properties of the composition of the present invention can be effectively fine-tuned and altered by adjusting type and content of the particles as well as of the plasticizer contained in the void filler composition.
    Type: Application
    Filed: January 10, 2013
    Publication date: August 15, 2013
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Baxter Healthcare S.A., Baxter International Inc.
  • Publication number: 20130189190
    Abstract: The invention relates to a coated medical device for rapid delivery of a therapeutic agent to a tissue in seconds to minutes. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent, a contrast agent, and an additive.
    Type: Application
    Filed: March 18, 2013
    Publication date: July 25, 2013
    Applicant: LUTONIX, INC.
    Inventor: Lutonix, Inc.
  • Publication number: 20130164224
    Abstract: The present invention relates to a contrast medium composition (formulation) comprising a highly concentrated contrast agent for use in an imaging method. The contrast medium composition according to the present invention, which comprises iodine working as a contrast agent in a higher concentration than the concentration used before, shows higher contrast enhancement effect in both of arterial phase and portal phase when used for liver CT than a composition comprising the contrast medium in a concentration used before. Accordingly, images having excellent resolution and discrimination can be obtained.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 27, 2013
    Applicants: Central Medical Service Co., Ltd
    Inventors: Central Medical Service Co., Ltd, Boo-Geun Kim
  • Publication number: 20130071321
    Abstract: The invention described herein pertains to folate-receptor targeted agents comprising therapeutic agents useful for the treatment of inflammatory disease, including folate-receptor targeted liposomes (folate-targeted liposomes) containing entrapped therapeutic agents and folate-receptor targeted dendrimers conjugated to therapeutic agents (folate-targeted dendrimer conjugates), useful for the treatment of inflammatory disease, including auto-immune disease, as well as to folate-targeted liposomes containing entrapped imaging agents and dendrimer conjugates conjugated to imaging agents, for use in the diagnosis and monitoring of treatment in such disease.
    Type: Application
    Filed: May 27, 2011
    Publication date: March 21, 2013
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Philip Stewart Low, Scott Poh
  • Publication number: 20120321564
    Abstract: The present invention provides compositions and methods to reduce renal damage caused by nephrotoxic drugs. The invention provides compositions comprising an anionically substituted cyclodextrin, a nephrotoxic drug and a pharmaceutically acceptable carrier, where the cyclodextrin is present in an amount effective for substantially inhibiting the nephrotoxic effect of the drug.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 20, 2012
    Applicant: Verrow Pharmaceuticals, Inc.
    Inventor: Vernon D. Rowe
  • Publication number: 20120189552
    Abstract: The present invention relates to compositions and methods for treating diseases and disorders including cancer and various other angiogenic-dependent diseases, vascular malfunctions, arteriovenous malformations (AVM), hemorrhagic processes and treatment of pain, in particular tumor-related pain by drug delivery and/or therapeutic embolization using microspheres. More particularly the invention relates to microspheres containing non-ionic contrast agents, to compositions comprising these microspheres, as well as methods for preparing and using such compositions for embolization therapy. The invention further relates to compositions and methods using detectable microspheres for targeted drug delivery, irrespective of whether embolization is also needed.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: BIOSPHERE MEDICAL, S.A.
    Inventor: Philippe Reb
  • Patent number: 8202511
    Abstract: The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: June 19, 2012
    Assignee: GE Healthcare AS
    Inventors: Ian Martin Newington, Duncan George Wynn, Veronique Morisson-Iveson, Joanna Marie Passmore
  • Publication number: 20120134933
    Abstract: The invention relates to a diagnostic or therapeutic composition comprising a monomeric X-ray contrast medium containing iodine, in particular iopromide, for use in an X-ray assisted diagnosis or therapy and for the use of high doses of an X-ray contrast medium given to a patient, in particular patients with restricted kidney function.
    Type: Application
    Filed: May 6, 2010
    Publication date: May 31, 2012
    Applicant: BAYER PHARMA AKTIENGESELLSCHAFT
    Inventors: Gregor Jost, Hubertus Pietsch, Martin Sieber, Matthias Bräutigam, Sven Golfier
  • Patent number: 8147805
    Abstract: Compositions and methods for dual imaging and for dual chemotherapy and radiotherapy are disclosed. More particularly, the invention concerns compounds comprising the structure X1—Y—X2, wherein Y comprises two or more carbohydrate residues covalently attached to one another, X1 and X2 are diagnostic or therapeutic moieties covalently attached to Y, provided that when Y does not comprise a glucosamine residue, X1 and X2 are diagnostic moieties. The present invention also concerns methods of synthesis of these compounds, application of such compounds for dual imaging and treatment of hyperproliferative disease, and kits for preparing a radiolabeled therapeutic or diagnostic compound.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: April 3, 2012
    Assignee: The Board of Regents of The University of T exas System
    Inventors: David Yang, Dongfang Yu, Mithu Chanda, Ali Azhdarinia, Changsok Oh, E. Edmund Kim
  • Patent number: 8066974
    Abstract: The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing an aliphatic central moiety containing urea or urethane functions allowing for the arrangement of three iodinated phenyl groups bound thereto. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging and to contrast media containing such compounds.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: November 29, 2011
    Assignee: GE Healthcare AS
    Inventors: Duncan Wynn, Harry John Wadsworth, Ian Martin Newington
  • Publication number: 20110117027
    Abstract: The present invention teaches a micro-porous injectable, soft elastic, fully resorbable fibrin-based composition for use as a soft tissue lumen and void filler. The composition of the present application exhibits physical characteristics, such as mechanical properties, typically seen in elastomers and mechanical stability, which is superior to fibrin alone. A variety of properties of the composition of the present invention can be effectively fine-tuned and altered by adjusting type and content of the particles as well as of the plasticizer contained in the void filler composition.
    Type: Application
    Filed: January 11, 2011
    Publication date: May 19, 2011
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: John J. Barry, Andreas Goessl, Heinz Gulle, Monika Mangold, Melitta Bilban
  • Publication number: 20080317675
    Abstract: The present invention generally relates to nonionic x-ray contrast media formulations, radiological compositions containing such agents and methods for x-ray visualization utilizing such compositions. The invention especially relates to injectable radiological compositions for x-ray visualization comprising a pharmaceutically acceptable vehicle and a mixture of a monomer, being a triiodo-substituted benzene nucleus, and a dimer, being two linked triiodo-substituted benzene nuclei, such that the mixture demonstrates favorable properties.
    Type: Application
    Filed: March 11, 2005
    Publication date: December 25, 2008
    Inventors: Muthunadar P. Periasamy, Brian D. Doty
  • Patent number: 7368101
    Abstract: A process for the preparation of (S)-N,N?-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxo-propyl)amino]-2,4,6-triiodo-1,3-benzendicarboxamide (iopamidol) starting from 5-amino-N,N?-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodo-1,3-benzenedicarboxamide (II) which process comprises a) reacting the compound of formula (II) with a suitable protecting agent, to give a compound of formula (III) wherein R is a group of formula A or B wherein R1 is a hydrogen atom, a C1÷C4 straight or branched alkoxy group, R2 is hydrogen, a C1÷C4 straight or branched alkoy group and R3 ?is a C1÷C4 straight or branched alkyl group, a trifuoromethyl or a trichloromethyl group; b) acylating the amino group in position 5 of the intermediate compound of formula (III), by reaction with a (S)-2-(acetyloxy)propanoyl chloride to give a compound of formula (IV) wherein R is as defined above; and c) removing all the acyl groups present in the compound of formula (IV) under basic conditions, with prior cleavage of the cyclic pro
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: May 6, 2008
    Assignee: Bracco Imaging S.p.A.
    Inventors: Pier Lucio Anelli, Marino Brocchetta, Giovanna Lux, Enrico Cappelletti
  • Patent number: 6596904
    Abstract: The present invention discloses a new process for producing ioversol (marketed as OPTIRAY®) comprising: (a) reacting 5-amino-N,N′-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisopthalamide with chloroacetyl chloride in a polar aprotic solvent or combinations thereof to produce N,N′-bis[2,3-di(2-chloroacetoxy)propyl]-5-(2-chloroacetamido)-2,4,6-triiodoisophthalamide; (b) reacting the product of (a) with a base to produce N,N′-bis(2,3-dihydroxypropyl)-5-(2-chloroacetamido)-2,4,6-triiodoisopthalamide; (c) reacting the product of (b) with an alkylating agent capable of producing a hydroxyethylated product in the presence of a base and water to produce N,N′-bis(2,3-dihydroxypropyl)-5-[N-(2-hydroxyethyl) (2-chloroacetamido)]-2,4,6-triiodoisopthalamide; and (d) reacting the product of (c) in water and acetate ions to produce ioversol.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: July 22, 2003
    Assignee: Mallinc Krodt Inc
    Inventors: Thomas Jeffrey Dunn, David H. White, Mills Thomas Kneller, Michelle M. Jones, Narciso Ocampo Doran, III, Allan R. Bailey
  • Patent number: 6506938
    Abstract: A process for purifying Iopamidol which uses a butanol as solvent is described. Iopamidol is obtained with high yields, also starting from aqueous solutions of the same and has characteristics in accordance with those required by pharmacopoeia.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 14, 2003
    Assignee: Bracco International B.V.
    Inventors: Marco Villa, Maurizio Paiocchi
  • Patent number: 6500341
    Abstract: A process for the purification of water-soluble non-ionic contrast agents from water-soluble non-ionic impurities involves the steps of (a) injecting a raw water-soluble non-ionic contrast agent solution on a chromatographic column containing non-ionic resins; (b) eluting water-soluble impurities contained in the raw water-soluble non-ionic contrast agent solution with deionized water as a first eluent, and (c) eluting a water-soluble non-ionic contrast agent with alcohol as a second eluent.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: December 31, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Shin-Shin Wang, Hui-Ping Tsai, Chii-Chang Lai
  • Patent number: 6469208
    Abstract: The object of the present invention is an industrial process for the purification and removal of residual solvents from iohexol, based on the suspension of crystalline iohexol, eventually containing residual solvents above 100 ppm, in a fluid wherein it has a low solubility, followed by heating, filtration and drying. The process allows the formation of crystalline iohexol with no residual organic residual solvent above 100 ppm and with an increased purity level.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: October 22, 2002
    Assignee: Hovione Inter Ltd.
    Inventors: Guido Du Boulay Villax, Alexandre Jose Ganchas De Carvalho, Carlos Manuel Alvarez Perez
  • Patent number: 6232499
    Abstract: The present invention provides a process for the production of an organic iodinated X-ray contract agent, characterized in that process control comprises vibrational (e.g., infrared, Raman or preferably near-infrared) spectroscopic monitoring of the reaction mixture in at least one of the process steps, preferably one of the final reaction steps.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: May 15, 2001
    Assignee: Nycomed Imaging AS
    Inventors: Dick Malthe-Sørenssen, Anne Cathrine Schelver Hyni, Arne Aabye, Hans René Bjørsvik, Geir Brekke, Carl Einar Sjøgren