Patents by Inventor James N. Chang

James N. Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8147865
    Abstract: Biocompatible intraocular implants include a steroid and an auxiliary agent, where the auxiliary agent is present in an amount sufficient to lessen the severity of at least one side effect compared to the use of an otherwise identical implant lacking said auxiliary agent. The steroid and the auxiliary agent may be present on the same intraocular implant or on different implants. The steroid and auxiliary agent may be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. Or, the steroid may be associated with a polymeric coating having one or more openings effective to permit the steroid to be released into an external environment. The implants containing the steroid and an auxiliary agent may be placed in an eye to treat one or more ocular conditions while reducing the side effects otherwise accompanying steroid use.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: April 3, 2012
    Assignee: Allergan, Inc.
    Inventors: Glenn T. Huang, Thierry Nivaggioli, Lon T. Spada, Hiroshi Sugimoto, Wendy M. Blanda, James N. Chang, Orest Olejnik
  • Publication number: 20110244035
    Abstract: Dosage forms comprising therapeutically active compounds are disclosed herein.
    Type: Application
    Filed: November 4, 2010
    Publication date: October 6, 2011
    Inventors: Chin-Ming Chang, James N. Chang, E. Quinn Farnes
  • Publication number: 20110124737
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Application
    Filed: December 10, 2010
    Publication date: May 26, 2011
    Applicant: ALLERGAN, INC.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Publication number: 20110034448
    Abstract: Biocompatible intraocular drug delivery systems include a carbonic anhydrase inhibitor therapeutic agent and a polymeric component in the form of an implant, a microparticle, a plurality of implants or microparticles, and combinations thereof. The therapeutic agent is released in a biologically active form, for example, the therapeutic agent may retain its three dimensional structure when released into an eye of a patient, or the therapeutic agent may have an altered three. The implants may be placed in an eye to treat or reduce the occurrence of one or more ocular conditions, such as retinal damage, including glaucoma and proliferative vitreoretinopathy among others.
    Type: Application
    Filed: October 31, 2007
    Publication date: February 10, 2011
    Applicant: ALLERGAN, INC.
    Inventors: James N. Chang, Patrick M. Hughes, Gerald W. Devries
  • Patent number: 7851504
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: December 14, 2010
    Assignee: Allergan, Inc.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Publication number: 20090264813
    Abstract: Apparatus and methods for implanting ocular implants in eyes are provided which include a bent cannula having a lumen extending therethrough, the lumen having a length and a diameter and being configured to receive an ocular implant. The ocular implant is made up of a plurality of substantially uniformly sized particles, preferably a plurality of uniformly sized microspheres, arranged in a one-by-one array along the length of the lumen. The apparatus further comprises a mechanism for delivering the implant through the distal end of the lumen and into the eye, preferably without the use of a liquid or gel carrier medium located in the lumen along with the implant.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 22, 2009
    Applicant: ALLERGAN, INC.
    Inventor: James N. CHANG
  • Publication number: 20090252802
    Abstract: Compositions including therapeutic components and surfactant components which enhance the utility of the therapeutic components and methods of using such compositions are provided.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 8, 2009
    Inventors: James N. Chang, Jane-Guo Shiah
  • Publication number: 20090203660
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 24, 2008
    Publication date: August 13, 2009
    Inventors: Patrick M. Hughes, Laurent Delahaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Publication number: 20090197846
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 23, 2008
    Publication date: August 6, 2009
    Inventors: Patrick M. Hughes, Laurent Delahaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Publication number: 20090197847
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 24, 2008
    Publication date: August 6, 2009
    Inventors: Patrick M. Hughes, Laurent Delahaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Publication number: 20090155314
    Abstract: Improved dermal filler formulation comprising a hyaluronic acid and a botulinum toxin.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventors: Ahmet Tezel, Wendy M. Blanda, Patrick M. Hughes, Scott M. Whitcup, James N. Chang, Michael R. Robinson
  • Publication number: 20090156568
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 24, 2008
    Publication date: June 18, 2009
    Inventors: Partick M. Hughes, Laurent Delhaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Publication number: 20090149546
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Application
    Filed: January 9, 2009
    Publication date: June 11, 2009
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R Scott Jordan, Joan-En Chang-Lin
  • Publication number: 20090149435
    Abstract: Process for making a sterile, injectable pharmaceutical composition by combining triamcinolone, a buffer and a high viscosity hyaluronate.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Inventors: Zhengjun Wang, Thomas M. McGrath, Toan N. Ha, Sam W. Lam, Bruce A. Firestone, Robert T. Lyons, James N. Chang, John T. Trogden
  • Publication number: 20090131307
    Abstract: A composition is described herein comprising cyclosporin A, polysorbate 80, a polyoxyethylene stearate, and an oil; wherein the composition is an emulsion which is ophthalmically acceptable. Methods of treating diseases or conditions using said compositions, and medicaments related thereto, are also disclosed herein.
    Type: Application
    Filed: January 28, 2009
    Publication date: May 21, 2009
    Inventors: Walter L. Tien, Richard Graham, James N. Chang
  • Publication number: 20090118247
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 7, 2009
    Inventors: Patrick M. Hughes, Laurent Delahaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Publication number: 20090118246
    Abstract: Pharmaceutical compositions suitable for administration into the interior of an eye of a person or animal are described. The present compositions include one or more components which are effective in providing a reduced toxicity relative to existing intraocular ophthalmic compositions. The present compositions include one or more therapeutic agents in amounts effective in providing a desired therapeutic effect when placed in an eye, and one or more retinal friendly excipients that have a reduced toxicity relative to benzyl alcohol or polysorbate 80. In certain compositions, the excipient component of the compositions comprises one or more cyclodextrins or cyclodextrin derivatives. Methods of using the compositions to treat ocular conditions are also described.
    Type: Application
    Filed: October 23, 2008
    Publication date: May 7, 2009
    Inventors: Patrick M. Hughes, Laurent Delahaye, Michele Boix, James N. Chang, Robert T. Lyons
  • Patent number: 7501393
    Abstract: A composition is described herein comprising cyclosporin A, polysorbate 80, a polyoxyethylene stearate, and an oil; wherein the composition is an emulsion which is ophthalmically acceptable. Methods of treating diseases or conditions using said compositions, and medicaments related thereto, are also disclosed herein.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: March 10, 2009
    Assignee: Allergan, Inc.
    Inventors: Walter L. Tien, Richard Graham, James N. Chang
  • Publication number: 20080269181
    Abstract: Compositions, and methods of using such compositions, useful for injection into the posterior segments of human or animal eyes are provided. Such compositions include corticosteroid component-containing particles present in a therapeutically effective amount, a viscosity inducing component, and an aqueous carrier component. The compositions have viscosities of at least about 10 cps or about 100 cps at a shear rate of 0.1/second. In a preferred embodiment, the viscosity is in the range of from about 140,000 cps to about 300,000 cps. The compositions advantageously suspend the particles for prolonged periods of time.
    Type: Application
    Filed: July 11, 2008
    Publication date: October 30, 2008
    Applicant: ALLERGAN, INC.
    Inventors: Robert T. LYONS, James N. Chang, John T. Trogden, Scott M. Whitcup
  • Publication number: 20080241252
    Abstract: Anti-angiogenesis compositions, and methods of using such compositions, useful for injection into the vitreous of human eyes are provided. Such compositions can include TKI component solutions or particles present in a therapeutically effective amount, a viscosity inducing component, and an aqueous carrier component. The compositions have viscosities at about 25° C. of at least about 10 cps or about 100 cps at a shear rate of 0.1/second. In a preferred embodiment, the viscosity at 25° C. is in the range of from about 80,000 cps to about 300,000 cps.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Applicant: ALLERGAN, INC.
    Inventors: Robert T. Lyons, James N. Chang, John T. Trogden, Scott M. Whitcup