Patents Assigned to Alexza Pharmaceutical, Inc.
  • Patent number: 12214118
    Abstract: The present invention provides a method for producing condensation aerosols for the treatment of disease and/or chronic, intermittent or acute conditions. These condensation aerosols are produced from drugs including temperature sensitive drugs and small molecule drugs that are coated onto a foil substrate which is heated via electrical resistance heating at precisely controlled temperature profiles with controllable ramp-up and heating rates to vaporize the coated drug which subsequently condenses to form aerosol particles. These condensation aerosols have little or no degradation products. Kits comprising a drug and a device for producing a condensation aerosol are also provided. Also disclosed, are methods for using these aerosols and kits and methods of making the aerosols.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: February 4, 2025
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: David Koji Hasegawa, Mingzu Lei, Gilbert T. Tong
  • Patent number: 12214119
    Abstract: The present invention provides a method for producing condensation aerosols for the treatment of disease and/or chronic, intermittent or acute conditions. These condensation aerosols are produced from drugs including temperature sensitive drugs and small molecule drugs that are coated onto a foil substrate which is heated via electrical resistance heating at precisely controlled temperature profiles with controllable ramp-up and heating rates to vaporize the coated drug which subsequently condenses to form aerosol particles. These condensation aerosols have little or no degradation products. Kits comprising a drug and a device for producing a condensation aerosol are also provided. Also disclosed, are methods for using these aerosols and kits and methods of making the aerosols.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: February 4, 2025
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: David Koji Hasegawa, Mingzu Lei, Gilbert T. Tong
  • Publication number: 20240408325
    Abstract: A handheld medical device with internal structures to improve the delivery of aerosol particles and its uses. The structures include airflow diverting structures, airflow straightening structures and/or internal walls defining an angle.
    Type: Application
    Filed: June 14, 2024
    Publication date: December 12, 2024
    Applicant: ALEXZA PHARMACEUTICALS, INC.
    Inventors: David Koji HASEGAWA, Peter HOLST, Dmitriy PETROVYKH
  • Patent number: 12138383
    Abstract: Drug supply units are disclosed which comprise substrates having a plurality of holes formed therein.
    Type: Grant
    Filed: May 8, 2023
    Date of Patent: November 12, 2024
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Martin J. Wensley, Marc Glazer, James Bresson, Ryan Timmons, Daniel J. Myers
  • Patent number: 12133915
    Abstract: Alprazolam formulated as an inhaled condensation aerosol and method for treating epilepsy and/or seizures.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: November 5, 2024
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: James Cassella, Lily Gong, Edwin S. Kamemoto
  • Publication number: 20240324679
    Abstract: A method of controlling the temperature of a drug foil substrate characterized by stopping the heating while measuring its temperature deciding the amount of time that the drug foil substrate is heated in the following period is disclosed.
    Type: Application
    Filed: June 13, 2024
    Publication date: October 3, 2024
    Applicant: ALEXZA PHARMACEUTICALS, INC.
    Inventors: David Koji HASEGAWA, Andreas KNAPIC, Mingzhu LEI, Ken MOCHEL
  • Patent number: 11839714
    Abstract: A heating unit comprising an electrically conductive substrate. A solid fuel layer comprising a metal reducing agent, a metal containing oxidizing agent and a binder is coated on a surface of the substrate, the solid fuel layer having a solid fuel surface spaced from the substrate. A first electrode coupled to the substrate. A second electrode coupled to the solid fuel surface. A power supply is configured to be selectively coupled to the first and second electrodes to provide a voltage between the metallic substrate and the solid fuel surface. The voltage acts to propagate an exothermic metal oxidation-reduction reaction without the use of an igniter.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: December 12, 2023
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Krishnamohan Sharma, Mingzu Lei
  • Patent number: 11717479
    Abstract: Alprazolam formulated as an inhaled condensation aerosol and method for treating epilepsy and/or seizures.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 8, 2023
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: James Cassella, Lily Gong, Edwin S. Kamemoto
  • Patent number: 11642473
    Abstract: Drug supply units are disclosed which comprise substrates having a plurality of holes formed therein.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 9, 2023
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Martin J. Wensley, Marc Glazer, James Bresson, Ryan Timmons, Daniel J. Myers
  • Patent number: 11511054
    Abstract: The disclosure teaches the use of antistatic materials in the airway for thermal aerosol generation devices. The present disclosure teaches the use of antistatic materials for drug delivery in any drug that may be susceptible to charging during aerosol generation.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 29, 2022
    Assignee: Alexza Pharmaceuticals, Inc.
    Inventors: Daniel J. Myers, Khe Kubel, James Cassella
  • Patent number: 11458130
    Abstract: The present disclosure relates generally to the field of nicotine delivery. The disclosure teaches a nicotine meta-salicylate. More specifically, the disclosure teaches a condensation nicotine aerosol where nicotine meta-salicylate is vaporized. This disclosure relates to aerosol nicotine delivery devices. The delivery devices can be activated by actuation mechanisms to vaporize thin films comprising a nicotine meta-salicylate. More particularly, this disclosure relates to thin films of nicotine salt with meta salicylic acid for the treatment of nicotine craving and for effecting smoking cessation.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 4, 2022
    Assignee: Alexza Pharmaceuticals, Inc.
    Inventors: Daniel J. Myers, James Cassella
  • Patent number: 11241383
    Abstract: Alprazolam formulated as an inhaled condensation aerosol and method for treating epilepsy and/or seizures.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 8, 2022
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: James Cassella, Lily Gong, Edwin S. Kamemoto
  • Patent number: 11065400
    Abstract: Inhalation delivery of aerosols containing small particles is described. Specifically, it relates to a device that forms drug containing aerosols for use in inhalation therapy. In a device aspect of the present disclosure, a device for delivering drug containing aerosols for inhalation therapy is provided. The device includes a housing and an airway that has a gas/vapor mixing airway. The airway further includes a subassembly, which has a metallic substrate coated on its surface with a composition comprising a drug.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: July 20, 2021
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Craig C. Hodges, Peter M. Lloyd, Daniel Mufson, Daniel D. Rogers, Martin J. Wensley
  • Patent number: 10786635
    Abstract: A heating unit comprising an electrically conductive substrate. A solid fuel layer comprising a metal reducing agent, a metal containing oxidizing agent and a binder is coated on a surface of the substrate, the solid fuel layer having a solid fuel surface spaced from the substrate. A first electrode coupled to the substrate. A second electrode coupled to the solid fuel surface. A power supply is configured to be selectively coupled to the first and second electrodes to provide a voltage between the metallic substrate and the solid fuel surface. The voltage acts to propagate an exothermic metal oxidation-reduction reaction without the use of an igniter.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: September 29, 2020
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Krishnamohan Sharma, Mingzu Lei
  • Patent number: 10625033
    Abstract: Drug supply units are disclosed which comprise substrates having a plurality of holes formed therein.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 21, 2020
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Martin J. Wensley, Marc Glazer, James Bresson, Ryan Timmons, Daniel J. Myers
  • Patent number: 10350157
    Abstract: The present invention provides novel condensation aerosols for the treatment of disease and/or intermittent or acute conditions. These condensation aerosols have little or no pyrolysis degradation products and are characterized by having an MMAD of between 1-3 microns. These aerosols are made by rapidly heating a substrate coated with a thin film of drug having a thickness of between 0.05 and 20 ?m, while passing a gas over the film, to form particles of a desirable particle size for inhalation. Kits comprising a drug and a device for producing a condensation aerosol are also provided. The device contained in the kit typically, has an element for heating the drug which is coated as a film on the substrate and contains a therapeutically effective dose of a drug when the drug is administered in aerosol form, and an element allowing the vapor to cool to form an aerosol. Also disclosed, are methods for using these aerosols and kits.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 16, 2019
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Ron L. Hale, Craig C. Hodges, Peter M. Lloyd, Amy T. Lu, Daniel J. Myers, Joshua D. Rabinowitz, Martin J. Wensley, Jeffrey A. McKinney, Alejandro C. Zaffaroni
  • Patent number: 10166224
    Abstract: The present disclosure relates generally to the field of nicotine delivery. The disclosure teaches a nicotine meta-salicylate. More specifically, the disclosure teaches a condensation nicotine aerosol where nicotine meta-salicylate is vaporized. This disclosure relates to aerosol nicotine delivery devices. The delivery devices can be activated by actuation mechanisms to vaporize thin films comprising a nicotine meta-salicylate. More particularly, this disclosure relates to thin films of nicotine salt with meta salicylic acid for the treatment of nicotine craving and for effecting smoking cessation.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: January 1, 2019
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Daniel J. Myers, James Cassella
  • Patent number: 9724341
    Abstract: The present disclosure relates generally to the field of nicotine delivery. The disclosure teaches a nicotine meta-salicylate. More specifically, the disclosure teaches a condensation nicotine aerosol where nicotine meta-salicylate is vaporized. This disclosure relates to aerosol nicotine delivery devices. The delivery devices can be activated by actuation mechanisms to vaporize thin films comprising a nicotine meta-salicylate. More particularly, this disclosure relates to thin films of nicotine salt with meta salicylic acid for the treatment of nicotine craving and for effecting smoking cessation.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 8, 2017
    Assignee: ALEXZA PHARMACEUTICALS, INC.
    Inventors: Daniel J. Myers, James Cassella
  • Patent number: 9687487
    Abstract: Inhalation delivery of aerosols containing small particles from a device that forms drug containing aerosols for use in inhalation therapy. A device for delivering drug containing aerosols for inhalation therapy is provided. The device includes a housing and an airway that has a gas/vapor mixing airway. The airway further includes a subassembly, which has a metallic substrate coated on its surface with a composition comprising a drug.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: June 27, 2017
    Assignee: Alexza Pharmaceuticals, Inc.
    Inventors: Craig C. Hodges, Peter M. Lloyd, Daniel Mufson, Daniel D. Rogers, Martin J. Wensley
  • Patent number: 9439907
    Abstract: The present application relates to the inhalation delivery of aerosols containing small particles. Specifically, it relates to a method of forming an aerosol for use in inhalation therapy. The method involves: (a) heating a substrate coated with a composition of a drug to form a vapor, wherein the coated composition is in the form of a film less than 10? thick; and, (b) allowing the vapor to cool, thereby forming an aerosol, which is used in inhalation therapy. In another aspect, a method of forming an aerosol for use in inhalation therapy is provided, wherein the method involves: (a) heating a substrate coated with a composition of a drug to form a vapor in less than 100 milliseconds, wherein the vapor has a mass greater than 0.1 mg; and, (b) allowing the vapor to cool, thereby forming an aerosol, which is used in inhalation therapy.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: September 13, 2016
    Assignee: ALEXZA PHARMACEUTICAL, INC.
    Inventors: Ron L. Hale, Craig C. Hodges, Peter M. Lloyd, Daniel Mufson, Daniel D. Rogers, Soonho Song, Martin J. Wensley, Daniel J. Myers, Jeffrey A. McKinney, Reynaldo J. Quintana, Joshua D. Rabinowitz