Patents by Inventor R. Loch Macdonald

R. Loch Macdonald 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).

  • Publication number: 20190255076
    Abstract: The described invention relates to small molecule therapeutic compounds capable of reducing the incidence of intracerebral hemorrhage and brain microhemorrhages identified using zebrafish and mouse models of intracerebral hemorrhage and brain microhemorrhages.
    Type: Application
    Filed: March 11, 2019
    Publication date: August 22, 2019
    Inventors: Xiao-Yan Wen, R. Loch MacDonald, Andrew Baker, Tom A. Schweizer
  • Patent number: 10292991
    Abstract: The described invention relates to small molecule therapeutic compounds capable of reducing the incidence of intracerebral hemorrhage and brain microhemorrhages identified using zebrafish and mouse models of intracerebral hemorrhage and brain microhemorrhages.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 21, 2019
    Assignee: Unity Health Toronto
    Inventors: Xiao-Yan Wen, R. Loch Macdonald, Andrew Baker, Tom A. Schweizer
  • Publication number: 20190054022
    Abstract: The described invention provides site-specific sustained release microparticulate formulations containing a therapeutic amount of an L-type voltage gated calcium channel inhibitor, a PLGA polymer comprising from 25% to 50% glycolide, and a hyaluronic acid. A therapeutic amount of the formulation is effective to reduce signs or symptoms of delayed cerebral ischemia comprising one or more of a cortical spreading ischemia, a cortical spreading depolarization, a plurality of microthromboemboli, or an angiographic vasospasm after brain injury in a mammal, while reducing the risk of systemic hypotension, cardiac dysfunction, anoxia, and intracranial hypertension.
    Type: Application
    Filed: April 5, 2017
    Publication date: February 21, 2019
    Inventor: R. Loch Macdonald
  • Patent number: 10092524
    Abstract: The described invention provides a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury using a flowable sustained release particulate composition.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 9, 2018
    Assignee: EDGE THERAPEUTICS, INC.
    Inventor: R. Loch Macdonald
  • Publication number: 20180064731
    Abstract: The described invention relates to small molecule therapeutic compounds capable of reducing the incidence of intracerebral hemorrhage and brain microhemorrhages identified using zebrafish and mouse models of intracerebral hemorrhage and brain microhemorrhages.
    Type: Application
    Filed: August 2, 2017
    Publication date: March 8, 2018
    Inventors: R. Loch Macdonald, Xiao-Yan Wen, Tom A. Schweizer, Andrew Baker
  • Publication number: 20180055813
    Abstract: The described invention provides delivery systems, compositions and methods for reducing incidence or severity of atrial fibrillation in a subject at risk thereof, the method comprising providing a delivery system in a form that is malleable comprising a particulate formulation containing a plurality of particles comprising a therapeutic amount of an anti-arrhythmic agent; and a pharmaceutically acceptable carrier, wherein the therapeutic amount of the therapeutic agent is effective to reduce the incidence or severity of atrial fibrillation.
    Type: Application
    Filed: May 2, 2017
    Publication date: March 1, 2018
    Inventors: Michael Kurz, R. Loch Macdonald
  • Publication number: 20160346224
    Abstract: The described invention provides a method for reducing visual loss and for treating one or more of adverse consequence of an eye disease, including abnormal intraocular pressure, retinal vascular disease, retinal ganglion cell death, or a combination thereof in order to reduce visual loss. The method entails providing a flowable particulate composition that contains a particulate formulation comprising a plurality of particles of uniform size distribution, a therapeutic amount of a therapeutic agent selected from a voltage-gated calcium channel antagonist, an endothelin receptor antagonist, or a combination thereof, and optionally an additional therapeutic agent, wherein the particles are of uniform size distribution, and wherein each particle comprises a matrix; and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: April 19, 2016
    Publication date: December 1, 2016
    Inventor: R. Loch Macdonald
  • Publication number: 20160324796
    Abstract: The described invention provides a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury using a flowable sustained release particulate composition.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 10, 2016
    Inventor: R. Loch Macdonald
  • Patent number: 9399019
    Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 26, 2016
    Assignees: Evonik Corporation, Edge Therapeutics, Inc.
    Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella, Parissa Heshmati
  • Publication number: 20160193198
    Abstract: The described invention provides a flowable sustained release microparticulate composition effective to improve cerebral perfusion and to treat a delayed complication of a brain injury mediated by decreased cerebral perfusion that deposits blood in a subarachnoid space of the brain. The described invention also provides a method for preparing a flowable sustained release microparticulate composition.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Inventors: R. Loch Macdonald, Brian A. Leuthner
  • Patent number: 9364432
    Abstract: The described invention provides a flowable sustained release microparticulate composition, a kit for treating at least one cerebral artery in a subarachnoid space at risk of interruption due to a brain injury, a method of preparing the composition, and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: June 14, 2016
    Assignee: Edge Therapeutics, Inc.
    Inventors: R. Loch Macdonald, Brian A. Leuthner
  • Publication number: 20140271895
    Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Application
    Filed: July 16, 2013
    Publication date: September 18, 2014
    Applicants: EDGE THERAPEUTICS, INC., Evonik Corporation
    Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella
  • Patent number: 8821944
    Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: September 2, 2014
    Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella
  • Publication number: 20130302431
    Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 14, 2013
    Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella
  • Publication number: 20130243864
    Abstract: The described invention provides a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury using a flowable sustained release particulate composition.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Inventor: R. Loch Macdonald
  • Publication number: 20130022660
    Abstract: The present invention relates to the treatment and prevention of vasospasm. The present invention provides a system for treating a cerebral vasospasm in a human utilizing a pharmaceutical composition and administrating a therapeutically effective amount of the pharmaceutical composition to a predetermined location in close proximity to a cerebral artery within a subarachnoid space wherein the pharmaceutical composition produces a localized pharmacologic effect thereby treating the cerebral vasospasm.
    Type: Application
    Filed: July 22, 2012
    Publication date: January 24, 2013
    Applicant: EDGE THERAPEUTICS, INC.
    Inventors: R. Loch Macdonald, Brian A. Leuthner
  • Publication number: 20120308658
    Abstract: The described invention provides a nonhuman animal model system for hemorrhagic brain conditions, methods for evaluating a substance for treating the hemorrhagic brain condition in a mammal, methods for treating hematoma expansion or recurrent rebleeding resulting from hemorrhagic brain conditions in a mammal, and pharmaceutical compositions for administration into or at a distance proximal to the hemorrhagic brain condition.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 6, 2012
    Inventor: R. Loch Macdonald
  • Patent number: 8303974
    Abstract: The present invention relates to the treatment and prevention of vasospasm. The present invention provides a system for treating a cerebral vasospasm in a human utilizing a pharmaceutical composition and administrating a therapeutically effective amount of the pharmaceutical composition to a predetermined location in close proximity to a cerebral artery within a subarachnoid space wherein the pharmaceutical composition produces a localized pharmacologic effect thereby treating the cerebral vasospasm.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 6, 2012
    Assignee: Edge Therapeutics, Inc.
    Inventors: R. Loch Macdonald, Brian Leuthner
  • Publication number: 20120245561
    Abstract: The described invention provides a flowable sustained release microparticulate composition, a kit for treating at least one cerebral artery in a subarachnoid space at risk of interruption due to a brain injury, a method of preparing the composition, and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.
    Type: Application
    Filed: April 5, 2012
    Publication date: September 27, 2012
    Inventors: R. Loch Macdonald, Brian A. Leuthner
  • Patent number: 8252302
    Abstract: The described invention provides a nonhuman animal model system for hemorrhagic brain conditions, methods for evaluating a substance for treating the hemorrhagic brain condition in a mammal, methods for treating hematoma expansion or recurrent rebleeding resulting from hemorrhagic brain conditions in a mammal, and pharmaceutical compositions for administration into or at a distance proximal to the hemorrhagic brain condition.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 28, 2012
    Assignee: Edge Therapeutics, Inc.
    Inventor: R. Loch Macdonald