Abstract: A pharmaceutical composition for controlled release of an active substance is provided. The active substance is released into an aqueous medium by erosion of at least one surface of the composition. The composition comprises i) a matrix comprising a) polymer or a mixture of polymers, b) an active substance and, optionally, c) one or more pharmaceutically acceptable excipients, and ii) a coating.
Type:
Grant
Filed:
July 15, 2014
Date of Patent:
July 18, 2017
Assignee:
EGALET LTD.
Inventors:
Gina Fischer, Daniel Bar-Shalom, Lillian Slot, Christine Andersen
Abstract: The present invention provides an improved method for the purification of monoclonal antibody from cell culture. Process of purification of the desired monoclonal antibody comprises affinity, hydrophobic interaction and optionally ion exchange column chromatography. It provides more than 99% purity of the desired monoclonal antibody.
Abstract: The present invention relates to compounds that are useful as metal ligands and which either contain a molecular recognition moiety or can be bound to a molecular recognition moiety and methods of making these compounds. Once the compounds that contain a molecular recognition moiety are coordinated with a suitable metallic radionuclide, the coordinated compounds are useful as radiopharmaceuticals in the areas of radiotherapy and diagnostic imaging. The invention therefore also relates to methods of diagnosis and therapy utilising the radiolabelled compounds of the invention.
Type:
Grant
Filed:
December 2, 2009
Date of Patent:
July 11, 2017
Assignee:
THE UNIVERSITY OF MELBOURNE
Inventors:
Paul Stephen Donnelly, Michelle Therese Ma, Denis Bernard Scanlon
Abstract: A pharmaceutical composition for controlled release of an active substance, the composition being a matrix composition of: (a) a substantially water soluble or crystalline polymer, (b) an active substance, and optionally, (c) one or more pharmaceutically acceptable excipients having a water solubility of at least 1 mg/ml at ambient temperature. The matrix composition does not contain a water dispersible or water soluble surface active agent that has at least one domain, which is compatible with the polymer in the matrix composition, and which substantially eliminates water diffusion between the interface between the polymer crystals.
Abstract: Polyphosphazene polymers having immunomodulating activity, and the biomedical use of such polyphosphazene polymers, in conjunction with an antigen or an immunogen are disclosed.
Abstract: The present invention relates to a method of separating one or more immunoglobulin containing proteins from a liquid. The method includes first contacting the liquid with a separation matrix comprising ligands immobilized to a support; allowing the immunoglobulin containing proteins to adsorb to the matrix by interaction with the ligands; followed by an optional step of washing the matrix containing the immunoglobulin containing proteins adsorbed thereon; and recovering said immunoglobulin containing proteins by contacting the matrix with an eluent which releases the proteins. The method improves upon previous separation methods in that each of the ligands comprises one or more of a protein A domain (E, D, A, B, C), or protein Z, or a functional variant thereof, with at least one of the monomers having a substitution of the Asparagine at the position corresponding to N28 of B domain of Protein A or Protein Z, and wherein the ligand provides an increase in elution pH compared to non-substituted ligand.
Type:
Grant
Filed:
December 19, 2011
Date of Patent:
June 20, 2017
Assignee:
GE HEALTHCARE BIOPROCESS R&D AB
Inventors:
Tomas Bjorkman, Elin Monie, Gustav Rodrigo
Abstract: The present invention relates to a method for preparing a population of antibodies to have high purity and high quality by removing antibody isoforms and impurities through the use of a cation exchange column, a hydrophobic interaction column, and an anion exchange column successively, without using a protein A column; and to a population of antibodies prepared by the above method.
Type:
Grant
Filed:
December 14, 2012
Date of Patent:
June 20, 2017
Assignee:
PRESTIGE BIOPHARMA PTE. LTD.
Inventors:
Ji Yong Yoon, Dong Eun Lee, Won Kyum Kim, Jeong Won Youn, Jung Eun Baek
Abstract: A method and kits thereof for increasing the efficiency of anti-adhesive compositions by parenterally administering a composition comprising an effective amount of at least one pharmaceutically-acceptable anti-adhesive non-ionic polymer to a site of injury, controlling inflammation at the site of injury, and reducing pain.
Abstract: A method of inhibiting alternative complement pathway activation in a mammal includes administering an amount of an antibody and/or fragment thereof that specifically binds to an epitope of the N terminus end of properdin effective to the inhibit alternative complement pathway in the subject.
Abstract: Disclosed are petrolatum-like compositions that include metathesized unsaturated polyol esters. Also disclosed are emulsions that include metathesized unsaturated polyol esters. The petrolatum-like compositions may be used as substitutes for petroleum-based petrolatum. The emulsions may be water-in-oil or oil-in-water emulsions and may be suitable for a variety of end uses.
Type:
Grant
Filed:
July 14, 2014
Date of Patent:
June 6, 2017
Assignee:
Elevance Renewable Sciences, Inc.
Inventors:
Diza Pearl Braksmayer, Timothy A. Murphy, Stephen E. Russell, Michael John Tupy, Scott A. Walters
Abstract: The invention provides a washing method for affinity chromatography in which a wash solution comprising arginine, or an arginine derivative, at pH greater than 8.0, is effective in removing impurities without the presence of a nonbuffering salt, while simultaneously increasing product concentration in the eluate and maintaining a high percent yield of recovered product.
Abstract: The invention discloses a polypeptide capable of binding immunoglobulins or immunoglobulin-containing proteins, which polypeptide comprises six or more domains of protein Z or the C domain of protein A or a functional variant thereof. It also discloses separation matrices comprising the polypeptide and methods of using the separation matrices for separation of immunoglobulins or immunoglobulin-containing proteins.
Abstract: For the removal of high molecular weight compounds from recombinantly produced polypeptides generally chromatographic methods are employed. It has been found that underivatized controlled pore glass (uCPG) selectively binds high molecular weight compounds present in a solution. The purified polypeptide can be recovered e.g. from the flow through of a chromatography column containing uCPG as chromatography material. It has been found that this effect is pronounced at a pH value of about 4 to 6 in buffered solutions. With approximately 100 m2 to 150 m2 uCPG surface per g of polypeptide almost 80% to 95% of the high molecular weight compounds are removed with a yield of 80% to 90% of polypeptide.
Type:
Grant
Filed:
October 12, 2012
Date of Patent:
May 23, 2017
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Stefan Hepbildikler, Wolfgang Kuhne, Eva Rosenberg, Gerhard Winter
Abstract: The present invention provides a composition comprising a polymer of a ?-hydroxy short-medium chain fatty acid, which is used for delivering the ?-hydroxy short-medium chain fatty acid or an oligomer thereof to the large intestine. In case the composition is administrated orally, the composition will be delivered to the large intestine, without being degraded in the stomach or short intestine, and degraded by the large intestinal bacterial flora and release the short-medium chain fatty acid or an oligomer thereof. The released short-medium chain fatty acid or an oligomer thereof has useful physiological activities and is effective for treating or preventing inflammatory diseases or cancer in the large intestine.
Abstract: The present invention relates to a method for purifying a protein by separating the protein from impurities in a non-adsorption mode using an activated carbon. In particular, the present invention relates to a method for purifying an antibody using the activated carbon instead of protein A affinity chromatography.
Abstract: The present invention provides a fluorescent molecular probe for efficient fluorescent detection (visualization) of tumors or for implementing fluorescent detection and photodynamic treatment, more specifically, the present invention provides a macromolecular fluorescent molecular probe for fluorescent detection of tumor, comprising a complex comprising a fluorescent molecule and a biocompatibie macromolecule.
Abstract: Antimicrobial cationic polymers having one or two cationic polycarbonate chains were prepared by organocatalyzed ring opening polymerization. One antimicrobial cationic polymer has a polymer chain consisting essentially of cationic carbonate repeat units linked to one or two end groups. The end groups can comprise a covalently bound form of biologically active compound such as cholesterol. Other antimicrobial cationic polymers have a random copolycarbonate chain comprising a minor mole fraction of hydrophobic repeat units bearing a covalently bound form of a vitamin E and/or vitamin D2. The cationic polymers exhibit high activity and selectivity against Gram-negative and Gram-positive microbes and fungi.
Type:
Grant
Filed:
May 14, 2016
Date of Patent:
April 25, 2017
Assignees:
International Business Machines Corporation, Agency For Science, Technology And Research
Inventors:
Daniel J. Coady, Richard A. Dipietro, Amanda C. Engler, James L. Hedrick, Victor W. L. Ng, Zhan-Yuin Ong, Jeremy P. K. Tan, Yi Yan Yang
Abstract: The present invention provides a method for preparing a composition comprising highly concentrated antibodies by ultrafiltration in batch concentration mode having a first constant feed rate step and a second controlled feed rate step.
Type:
Grant
Filed:
August 31, 2012
Date of Patent:
April 25, 2017
Assignees:
Chugai Seiyaku Kabushiki Kaisha, Genentech, Inc.
Abstract: The current invention reports a method for purifying an immunoglobulin, wherein the method comprises applying an aqueous, buffered solution comprising an immunoglobulin in monomeric, in aggregated, and in fragmented form to an anion exchange chromatography material under conditions whereby the immunoglobulin in monomeric form does not bind to the anion exchange material, and recovering the immunoglobulin in monomeric form in the flow-through from the anion exchange chromatography material, whereby the buffered aqueous solution has a pH value of from 8.0 to 8.5. In one embodiment the anion exchange chromatography material is a membrane anion exchange chromatography material.