Patents by Inventor Julia G. Levy

Julia G. Levy 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: 8239978
    Abstract: Photodynamic therapy of conditions of the eye, especially those conditions characterized by unwanted neovasculature, such as age-related macular degeneration, results in enhanced visual acuity for treated subjects.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 14, 2012
    Assignee: Novartis Opthalmics AG
    Inventors: H. Andrew Strong, Julia G. Levy, Gustav Huber, Mario Fsadni
  • Patent number: 8106038
    Abstract: This invention relates generally to the field of pharmacotherapeutics and the use of photodynamic therapy (“PDT”). In particular, the invention provides a method for reducing or preventing the effects of inflammation arising from normal dose photodynamic therapy (PDT), which method comprises exposing a target tissue in a subject that has been treated with normal dose PDT treatment to low dose light having a wavelength absorbed by a photosensitizing agent used in said normal dose PDT treatment for a time sufficient to reduce or prevent the effects of inflammation arising from said normal dose PDT treatment. The method is particularly useful in reducing or preventing the effects of inflammation arising from normal dose PDT treatment of ocular tissues.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: January 31, 2012
    Assignee: QLT Inc.
    Inventors: Philippe Maria Clotaire Margaron, Anna M. Richter, Julia G. Levy
  • Patent number: 7850981
    Abstract: Immuno-adjuvant photodynamic therapy to treat and prevent metastatic cancer is effected using photosensitizers in combination with immuno-adjuvants to destroy metastatic tumor cells.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: December 14, 2010
    Assignees: QLT, Inc., University of British Columbia (UBC)
    Inventors: Patrick Mark Curry, Anna M. Richter, Julia G. Levy, David W. C. Hunt
  • Patent number: 7479503
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: January 20, 2009
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Simon Leong, Agnes How-Ching Chan, David William Carey Hunt, Julia G. Levy, Martin Renke, Janice North
  • Publication number: 20080096857
    Abstract: The present method involves the photodynamic treatment of hyperactive gland disorders. The method involves the topical administration of a photosensitizer composition comprising hydrophobic and/or lipophilic green porphyrins such as lemuteporfin, polyethylene glycol and skin penetration enhancers such as oleyl alcohol and TRANSCUTOL™ to affected skin and subsequent exposure of that skin to energy of a wavelength capable of activating the photosensitizer.
    Type: Application
    Filed: February 8, 2005
    Publication date: April 24, 2008
    Applicant: QLT Inc.
    Inventors: Alain H. Curaudeau, Herma C. Neyndorff, Jing-Song Tao, Julia G. Levy, David W.C. Hunt, Morgan Chun Lam, Patrick Mark Curry, Valery Rubinchik
  • Patent number: 7122569
    Abstract: New compounds useful in photodynamic therapy are of the formula and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereof wherein each R1 is independently alkyl (1–6C); each n is independently an integer of 0–6; and R2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: October 17, 2006
    Assignees: QLT, Inc. and, University of British Columbia
    Inventors: Ethan D. Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch, Andrew Norman Tovey
  • Patent number: 6849058
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: February 1, 2005
    Assignee: QLT, Inc.
    Inventors: Julia G. Levy, Janice North
  • Patent number: 6756396
    Abstract: New compounds useful in photodynamic therapy are of the formula and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereof wherein each R1 is independently alkyl (1-6C); each n is independently an integer of 0-6; and R2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 29, 2004
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch
  • Patent number: 6677366
    Abstract: A method for reducing or preventing the effects of inflammation arising from injured tissue, which method comprises the steps of: a. bringing the injured tissue, or pre-injured tissue, into contact with a photosensitizing agent capable of penetrating into the tissue, resulting in the desired degree of biodistribution in less than one hour; and b. exposing the tissue thus contacted to light having a wavelength absorbed by the photosensitizing agent for a time sufficient to reduce or prevent inflammation in the exposed tissue, but not so long as to cause necrosis or erythema of the exposed tissue, or a pharmaceutical composition or an article for reducing or preventing the effects of inflammation arising from injured tissue. The composition comprises: a. from about 1 &mgr;g/mL to about 2 mg/mL of a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution less than one hour; and b. a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: January 13, 2004
    Assignees: QLT Inc., The University of British Columbia, Novartis AG
    Inventors: Anna M. Richter, Julia G. Levy, Claude A. A. Hariton, Gustave Huber, William C. Stewart, Mario G. Fsadni, Modestus O. K. Obochi
  • Patent number: 6659107
    Abstract: Donor material from a xenogeneic source is modified to enhance its survival time in a recipient by treating the donor material using low-dose photodynamic therapy (PDT). The donor material, such as an organ or cell suspension, is treated with a photosensitizer and irradiated in a low-dose protocol before transplantation into a xenogeneic recipient.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: December 9, 2003
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Modestus O. K. Obochi, Philippe Maria Clotaire Margaron, Christopher Richard Honey, Stephen Yip, Julia G. Levy
  • Publication number: 20030083649
    Abstract: This invention relates generally to the field of pharmacotherapeutics and the use of photodynamic therapy (“PDT”). In particular, the invention provides a method for reducing or preventing the effects of inflammation arising from normal dose photodynamic therapy (PDT), which method comprises exposing a target tissue in a subject that has been treated with normal dose PDT treatment to low dose light having a wavelength absorbed by a photosensitizing agent used in said normal dose PDT treatment for a time sufficient to reduce or prevent the effects of inflammation arising from said normal dose PDT treatment. The method is particularly useful in reducing or preventing the effects of inflammation arising from normal dose PDT treatment of ocular tissues.
    Type: Application
    Filed: February 15, 2002
    Publication date: May 1, 2003
    Inventors: Philippe Maria Clotaire Margaron, Anna M. Richter, Julia G. Levy
  • Publication number: 20020139938
    Abstract: Donor material from a xenogeneic source is modified to enhance its survival time in a recipient by treating the donor material using low-dose photodynamic therapy (PDT). The donor material, such as an organ or cell suspension, is treated with a photosensitizer and irradiated in a low-dose protocol before transplantation into a xenogeneic recipient.
    Type: Application
    Filed: March 14, 2002
    Publication date: October 3, 2002
    Inventors: Modestus O.K. Obochi, Philippe Maria Clotaire Margaron, Christopher Richard Honey, Stephen Yip, Julia G. Levy
  • Publication number: 20020137676
    Abstract: The invention provides for the use of somatostatin receptor selective ligands (selective for SSTR1 or SSTR4) to treat human endothelial cells and to formulate medicaments for human use. The medicaments may for example be used to treat an angiogenic disease. In various embodiments, the angiogenic disease may for example be macular degeneration or a solid tumor. The SSTR1 or SSTR4 selective agonists may include the SSTR1 agonist (des-AA1,2,5 [DTrp8,IAamp9]SS).
    Type: Application
    Filed: March 1, 2001
    Publication date: September 26, 2002
    Inventors: York Hsiang, Alison Buchan, Julia G. Levy, Philippe Maria Clotaire Margaron
  • Publication number: 20020103180
    Abstract: A method for reducing or preventing the effects of inflammation arising from injured tissue, which method comprises the steps of:
    Type: Application
    Filed: August 13, 2001
    Publication date: August 1, 2002
    Inventors: Anna M. Richter, Julia G. Levy, Claude A. A. Hariton, Gustave Huber, William C. Stewart, Mario G. Fsadni
  • Patent number: 6364907
    Abstract: Donor material from a xenogeneic source is modified to enhance its survival time in a recipient by treating the donor material using low-dose photodynamic therapy (PDT). The donor material, such as an organ or cell suspension, is treated with a photosensitizer and irradiated in a low-dose protocol before transplantation into a xenogeneic recipient.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: April 2, 2002
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Modestus O. K. Obochi, Philippe Maria Clotaire Margaron, Christopher Richard Honey, Stephen Yip, Julia G. Levy
  • Publication number: 20020022032
    Abstract: Immuno-adjuvant photodynamic therapy to treat and prevent metastatic cancer is effected using photosensitizers in combination with immuno-adjuvants to destroy metastatic tumor cells.
    Type: Application
    Filed: January 9, 2001
    Publication date: February 21, 2002
    Inventors: Patrick Mark Curry, Anna M. Richter, Julia G. Levy, David W.C. Hunt
  • Patent number: 6274614
    Abstract: A method for reducing or preventing the effects of inflammation arising from injured tissue, which method comprises the steps of: a. bringing the injured tissue, or pre-injured tissue, into contact with a photosensitizing agent capable of penetrating into the tissue, resulting in the desired degree of biodistribution in less than one hour; and b. exposing the tissue thus contacted to light having a wavelength absorbed by the photosensitizing agent for a time sufficient to reduce or prevent inflammation in the exposed tissue, but not so long as to cause necrosis or erythema of the exposed tissue, or a pharmaceutical composition or an article for reducing or preventing the effects of inflammation arising from injured tissue. The composition comprises: a. from about 1 &mgr;/mL to about 2 mg/mL of a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution less than one hour; and b. a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: August 14, 2001
    Assignees: QLT Inc., The University of British Columbia, CIBA Vision AG
    Inventors: Anna M. Richter, Julia G. Levy, Claude A. A. Hariton, Gustave Huber, William C. Stewart, Mario G. Fsadni
  • Patent number: 6248734
    Abstract: Photodynamic therapy to prevent secondary cataracts is effected using photosensitizers such as green porphyrins as photoactive agents to destroy remnant lens epithelial cells.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: June 19, 2001
    Assignees: QLT, Inc., The University of British Columbia, Ciba Vision Opthalmics
    Inventors: Howard E. Meadows, Danielle Wenkstern, David R. Mallek, Marcello Nick Bussanich, Anna M. Richter, Julia G. Levy, Claude A. A. Hariton, Gustav Huber, Jack Rootman
  • Patent number: 6180402
    Abstract: A composition and method for inhibiting apoptosis, or decreasing the rate or extent of apoptosis, in target cells. The method comprises the step of the step of contacting the target cells with an apoptosis-regulating amount of at least one cysteine or serine protease inhibitor that: a. inhibits the conversion of the pro-enzyme form of CPP32 to its enzymatically-active form; b. blocks the proteolytic action of activated CPP32 against its cellular substrates; or c. both. The method is particularly applicable to ameliorating the side effects of, or enhancing the selectivity, of photodynamic therapy.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 30, 2001
    Assignees: QLT Inc., University of British Columbia
    Inventors: David J. Granville, Julia G. Levy, David W. C. Hunt
  • Patent number: 6153639
    Abstract: New compounds useful in photodynamic therapy are of the formula ##STR1## and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereofwherein each R.sup.1 is independently alkyl (1-6C);each n is independently an integer of 0-6; andR.sup.2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: November 28, 2000
    Assignees: QLT PhotoTherapeutices Inc., The University of British Columbia
    Inventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch