Patents Assigned to QLT, Inc.
  • Patent number: 9173856
    Abstract: Disclosed herein are therapeutic regimens for treating or ameliorating a visual disorder associate with an endogenous retinoid deficiency in a subject by administering a therapeutically effective amount of a synthetic retinal derivative or a pharmaceutically acceptable composition comprising a synthetic retinal derivative according to the therapeutic regimen which leads to local recovery of visual functions such as visual fields, visual acuity and retinal sensitivity, among others.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 3, 2015
    Assignee: QLT INC.
    Inventors: H. Andrew Strong, Suzanne Cadden
  • Publication number: 20150038582
    Abstract: Therapeutic regimes for improving visual function in a subject having a deficiency in endogenously produced 11-cis retinal comprising administering the synthetic retinal derivative as a divided dose over 2-7 days then providing a resting period of 7-28 days after which the second dose of the synthetic retinal derivative is administered. Preferred synthetic retinal derivatives are 9- or 11-cis-retinyl esters. Disorders associated with deficiency in endogenously produced 11-cis retinal include retinitis pigmentosa and Leber congenital amaurosis.
    Type: Application
    Filed: March 1, 2013
    Publication date: February 5, 2015
    Applicant: QLT INC.
    Inventor: Suzanne Cadden
  • Publication number: 20140094484
    Abstract: The present invention relates to a rapamycin sustained release delivery system for treatment of diseases responsive to rapamycin. The sustained release delivery system of the invention includes a flowable composition containing rapamycin or a rapamycin derivative, which is capable of providing an implant containing the rapamycin or derivative thereof. The flowable composition may be injected into tissue whereupon it coagulates to become the solid or gel, monolithic implant. The flowable composition includes a biodegradable, thermoplastic polymer, an organic liquid and rapamycin or a rapamycin derivative.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 3, 2014
    Applicants: QLT Inc., Tolmar Therapeutics, Inc.
    Inventors: Philippe Maria Clotaire Margaron, Eric Dadey, Christopher M. Lindemann, Ruihong Li
  • Publication number: 20130101658
    Abstract: A drug insert is configured for use with an implant. The implant is configured for insertion into a lacrimal canaliculus. The drug insert includes a drug core comprising a therapeutic agent and a polymer; and a sheath body comprising material substantially impermeable to the therapeutic agent, wherein the drug core is positioned within the sheath body. The sheath body is configured to provide an exposed end of the drug core that releases therapeutic agent to an eye when the drug insert is disposed within the implant and the implant is positioned in the lacrimal canaliculus. A distal end of the drug core is sealed with a medical-grade adhesive.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 25, 2013
    Applicant: QLT INC.
    Inventor: QLT INC.
  • Publication number: 20120318281
    Abstract: Lacrimal implants for treating diseases or disorders are disclosed. More particularly, lacrimal implants, methods of making such implants, and methods of treating ocular, respiration, inner ear or other diseases or disorders using such implants are disclosed.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 20, 2012
    Applicant: QLT INC
    Inventors: Alan R. Rapacki, Valery Rubinchik, John B. Holds, Sylvie Sim, Danny Shen
  • Patent number: 8333726
    Abstract: Lacrimal implants for treating diseases or disorders are disclosed. More particularly, lacrimal implants, methods of making such implants, and methods of treating ocular, respiration, inner ear or other diseases or disorders using such implants are disclosed.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: December 18, 2012
    Assignee: QLT Inc.
    Inventors: Alan R. Rapacki, Valery Rubinchik, John B. Holds, Sylvie Sim, Danny Shen
  • Publication number: 20120277694
    Abstract: A punctal plug for insertion through a punctal aperture of an eye. The punctal plug includes a stem configured to be inserted into the punctal aperture and along a canaliculus of the eye, a stopper connected to one end of the stem, the stopper configured to seat against the punctal aperture, and a topical prostaglandin. The stem and the stopper are made from a porous or absorbent material, and wherein the material is saturated with the topical prostaglandin.
    Type: Application
    Filed: June 26, 2012
    Publication date: November 1, 2012
    Applicant: QLT INC.
    Inventors: Steven A. Odrich, Liane C. Glazer
  • Publication number: 20120245539
    Abstract: Lacrimal implants providing secure, wedgable retention within a lacrimal punctum and associated canaliculus of an eye are disclosed. The lacrimal implants can comprise an implant body, including first and second portions, extending from a proximal end of the first portion to a distal end of the second portion. The second portion includes a retention projection. The implant body can also include a cavity longitudinally extending from the proximal end of the first portion toward the second portion, wherein the cavity is shaped and sized to receive an insertable actuator, and wherein the retention projection is configured to bias outward or change orientation when the insertable actuator is seated within the cavity.
    Type: Application
    Filed: November 26, 2010
    Publication date: September 27, 2012
    Applicant: QLT INC.
    Inventors: Sascha K. Zarins, David J. Scott, David Tholfsen
  • Publication number: 20120245682
    Abstract: Surface treated implantable articles and related methods are disclosed. The surface treated implantable articles can be substantially flash-free, include one or more rounded edges, or include an enhanced optical clarity, one or all of which can be produced by polishing. The polishing can include causing the implantable articles to be repeatedly impacted with polishing media when the articles are swelled to an enlarged state. The polishing process can be particularly useful for smoothing lacrimal implants insertable in a lacrimal canaliculus.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 27, 2012
    Applicant: QLT INC.
    Inventors: Alan R. Rapacki, Wilhelm Leung
  • Publication number: 20120203162
    Abstract: The present invention describes an improved photodynamic treatment to treat subfoveal choroidal neovascularization (CNV).
    Type: Application
    Filed: April 16, 2012
    Publication date: August 9, 2012
    Applicant: QLT Inc.
    Inventor: Romulus Kimbro BRAZZELL
  • Publication number: 20120187594
    Abstract: A solid drug core insert can be manufactured by injecting a liquid mixture comprising a therapeutic agent and a matrix precursor into a sheath body. The injection can be conducted at subambient temperatures. The mixture is cured to form a solid drug-matrix core. The therapeutic agent can be a liquid at about room temperature that forms a dispersion of droplets in the matrix material. A surface of the solid drug core is exposed, for example by cutting the tube, and the exposed surface of the solid drug core releases therapeutic quantities of the therapeutic agent when implanted into the patient. In some embodiments, the insert body inhibits release of the therapeutic agent, for example with a material substantially impermeable to the therapeutic agent, such that the therapeutic quantities are released through the exposed surface, thereby avoiding release of the therapeutic agent to non-target tissues.
    Type: Application
    Filed: February 7, 2012
    Publication date: July 26, 2012
    Applicant: QLT INC.
    Inventors: Deepank Utkhede, Robert W. Shimizu, Rachna Jain, Stephen Boyd, Hanson S. Gifford, Eugene de Juan, Cary J. Reich
  • Publication number: 20120178806
    Abstract: Pharmaceutical formulations comprising 9-cis-retinyl esters in a lipid vehicle are described as retinoid replacement therapies for treating retinal degenerations in humans.
    Type: Application
    Filed: September 30, 2009
    Publication date: July 12, 2012
    Applicant: QLT INC.
    Inventor: Ronald Erwin Boch
  • Patent number: 8210902
    Abstract: Surface treated implantable articles and related methods are disclosed. The surface treated implantable articles can be substantially flash-free, include one or more rounded edges, or include an enhanced optical clarity, one or all of which can be produced by polishing. The polishing can include causing the implantable articles to be repeatedly impacted with polishing media when the articles are swelled to an enlarged state. The polishing process can be particularly useful for smoothing lacrimal implants insertable in a lacrimal canaliculus.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 3, 2012
    Assignee: QLT Inc.
    Inventors: Alan R. Rapacki, Wilhelm Leung
  • Patent number: 8158669
    Abstract: The present invention describes an improved photodynamic treatment to treat subfoveal choroidal neovascularization (CNV).
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: April 17, 2012
    Assignee: QLT, Inc.
    Inventor: Romulus K Brazzell
  • Publication number: 20120041356
    Abstract: The use of a combination of photodynamic therapy and an anti-VEGF agent in the treatment of conditions characterized by unwanted choroidal neovasculature is described. These conditions include wet age-related macular degeneration Preferred anti-VEGF agents are antibodies such as bevacizumab or ranibizumab Photosensitizers may be selected from green porphyrins such as BPD-MA (verteporfin) and the photodynamic activation of the photo sensitizer may be accomplished using a reduced fluence rate. The use may further comprises an anti-inflammatory agent such as dexamethasone.
    Type: Application
    Filed: December 16, 2009
    Publication date: February 16, 2012
    Applicant: QLT INC.
    Inventors: H. Andrew Strong, Yong Hao
  • 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
  • Publication number: 20110276131
    Abstract: An implant for insertion through a punctum and into a canalicular lumen of a patient. The implant includes a matrix of material, a therapeutic agent dispersed in the matrix of material, a sheath disposed over a portion of the matrix of material and configured to inhibit the therapeutic agent from being released from the matrix of material into the canalicular lumen and to allow the therapeutic agent to be released from a surface of the matrix of material to a tear film, and a retention structure configured to retain the implant within the canalicular lumen.
    Type: Application
    Filed: July 18, 2011
    Publication date: November 10, 2011
    Applicant: QLT INC.
    Inventors: Eugene de Juan, JR., Stephen Boyd, Cary Reich, Alan Rapacki, Hanson S. Gifford, III, Mark Deem
  • Publication number: 20110257266
    Abstract: Disclosed herein are therapeutic regimens for treating or ameliorating a visual disorder associate with an endogenous retinoid deficiency in a subject by administering a therapeutically effective amount of a synthetic retinal derivative or a pharmaceutically acceptable composition comprising a synthetic retinal derivative according to the therapeutic regimen which leads to local recovery of visual functions such as visual fields, visual acuity and retinal sensitivity, among others.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 20, 2011
    Applicant: QLT, INC.
    Inventors: H. Andrew Strong, Suzanne Cadden
  • Patent number: 8034803
    Abstract: The invention relates to the selection and treatment of subjects afflicted with occult choroidal neovascular lesions, including subjects with age-related macular degeneration, by use of photo dynamic therapy (PDT).
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: October 11, 2011
    Assignees: QLT Inc., Novartis, A.G.
    Inventors: H. Andrew Strong, Mohammad Azab, Yong Hao, John Miller Koester, Troy Albert Reaves, Jr.
  • Publication number: 20110202020
    Abstract: A device for delivering a treatment medium to an eye includes a first body portion configured to be removably inserted and secured in an opening of the eye, and a second body portion supported by the first body portion. At least the second body portion includes a treatment medium, and a coating having an opening through which the treatment medium elutes out of the device.
    Type: Application
    Filed: April 7, 2011
    Publication date: August 18, 2011
    Applicant: QLT Inc.
    Inventor: Eliot LAZAR