Patents by Inventor John T. Isaacs

John T. Isaacs 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: 11911027
    Abstract: A surgical stapler, or fastening instrument, may generally comprise a layer, such as a tissue thickness compensator, for example, releasably attached to a fastener cartridge and/or anvil by a flowable attachment portion. The flowable attachment portion may be indefinitely flowable. The flowable attachment portion may be flowable from the time that layer is installed to the fastener cartridge to the time in which the layer is implanted to patient tissue. The flowable attachment portion may comprise a pressure sensitive adhesive. The flowable attachment portion may comprise an adhesive laminate comprising a base layer comprising the tissue thickness compensator and an adhesive layer on at least a portion of a surface of the base layer comprising the pressure sensitive adhesive. Articles of manufacture comprising flowable attachment portion and methods of making and using the flowable attachment portion are also described.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: February 27, 2024
    Assignee: Cilag GmbH International
    Inventors: Taylor W. Aronhalt, Michael J. Vendely, Lauren S. Weaner, Brandon J. Lloyd, Frederick E. Shelton, IV, Michael J. Miller, Michael T. Isaacs, Emily Ann Schellin, John V. Hunt, John E. Feds
  • Publication number: 20230331694
    Abstract: The present disclosure relates to FAP-activated prodrugs that can be used in the treatment of cancer, such as prostate cancer. The disclosure also relates to pharmaceutical compositions comprising the prodrugs, and related methods of treatment.
    Type: Application
    Filed: July 29, 2021
    Publication date: October 19, 2023
    Inventors: W. Nathaniel Brennen, John T. Isaacs, Samuel R. Denmeade, Emmanuel S. Akinboye
  • Publication number: 20210205408
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for treating cancer using albumin-proaerolysin prodrugs. Accordingly, in one aspect, the present invention provides prodrug compositions. In certain embodiments, a prodrug composition comprises a prostate-specific antigen (PSA)-activated pro-aerolysin (PA), wherein a PSA cleavable linker replaces the native furin cleavage site within PA; and human serum albumin (HSA) or a fragment thereof fused to the N-terminus of the PSA-activated PA.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 8, 2021
    Inventors: John T. Isaacs, Samuel R. Denmeade, W. Nathaniel Brennen
  • Patent number: 10967046
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for treating cancer using albumin-proaerolysin prodrugs. Accordingly, in one aspect, the present invention provides prodrug compositions. In certain embodiments, a prodrug composition comprises a prostate-specific antigen (PSA)-activated pro-aerolysin (PA), wherein a PSA cleavable linker replaces the native furin cleavage site within PA; and human serum albumin (HSA) or a fragment thereof fused to the N-terminus of the PSA-activated PA.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: April 6, 2021
    Assignee: The Johns Hopkins University
    Inventors: John T. Isaacs, Samuel R. Denmeade, W. Nathaniel Brennen
  • Publication number: 20200268836
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for treating cancer using albumin-proaerolysin prodrugs. Accordingly, in one aspect, the present invention provides prodrug compositions. In certain embodiments, a prodrug composition comprises a prostate-specific antigen (PSA)-activated pro-aerolysin (PA), wherein a PSA cleavable linker replaces the native furin cleavage site within PA; and human serum albumin (HSA) or a fragment thereof fused to the N-terminus of the PSA-activated PA.
    Type: Application
    Filed: March 11, 2020
    Publication date: August 27, 2020
    Inventors: John T. Isaacs, Samuel R. Denmeade, W. Nathaniel Brennen
  • Patent number: 10596226
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for treating cancer using albumin-proaerolysin prodrugs. Accordingly, in one aspect, the present invention provides prodrug compositions. In certain embodiments, a prodrug composition comprises a prostate-specific antigen (PSA)-activated pro-aerolysin (PA), wherein a PSA cleavable linker replaces the native furin cleavage site within PA; and human serum albumin (HSA) or a fragment thereof fused to the N-terminus of the PSA-activated PA.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: March 24, 2020
    Assignee: The Johns Hopkins University
    Inventors: John T. Isaacs, Samuel R. Denmeade, W. Nathaniel Brennen
  • Publication number: 20180148480
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for using synthetically enhanced T-cells to treat cancer. The present invention also provides a T-cell engineered (a) to express at least one CAR that binds tumor antigens; and (b) to inducibly express a prostate-specific antigen (PSA)-activated pro-aerolysin (PA) upon tumor antigen recognition by CAR.
    Type: Application
    Filed: January 15, 2016
    Publication date: May 31, 2018
    Inventors: John T. Isaacs, Samuel R. Denmeade, Nathaniel E. Brennen
  • Publication number: 20180008668
    Abstract: The present invention relates to the field of cancer. More specifically, the present invention provides compositions and methods for treating cancer using albumin-proaerolysin prodrugs. Accordingly, in one aspect, the present invention provides prodrug compositions. In certain embodiments, a prodrug composition comprises a prostate-specific antigen (PSA)-activated pro-aerolysin (PA), wherein a PSA cleavable linker replaces the native furin cleavage site within PA; and human serum albumin (HSA) or a fragment thereof fused to the N-terminus of the PSA-activated PA.
    Type: Application
    Filed: January 15, 2016
    Publication date: January 11, 2018
    Inventors: John T. Isaacs, Samuel R. Denmeade, Nathaniel E. Brennen
  • Patent number: 8957016
    Abstract: The instant invention provides compositions comprising a prodrug, the prodrug comprising a therapeutically active drug; and a peptide selected from the group consisting of the sequences: Ser-Ser-Lys-Tyr-Gln (SEQ ID NO:1); Gly-Lys-Ser-Gln-Tyr-Gln (SEQ ID NO:2); and Gly-Ser-Ala-Lys-Tyr-Gln (SEQ ID NO:3) wherein the peptide is linked to the therapeutically active drug to inhibit the therapeutic activity of the drug, and wherein the therapeutically active drug is cleaved from the peptide upon proteolysis by an enzyme having a proteolytic activity of prostate specific antigen (PSA). The invention further provides methods of making and using the claimed compositions.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: February 17, 2015
    Inventors: Samuel R. Denmeade, John T. Isaacs
  • Patent number: 8822406
    Abstract: The instant invention provides compositions comprising a prodrug, the prodrug comprising a therapeutically active drug; and a peptide selected from the group consisting of the sequences: Ser-Ser-Lys-Tyr-Gln (SEQ ID NO:1); Gly-Lys-Ser-Gln-Tyr-Gln (SEQ ID NO:2); and Gly-Ser-Ala-Lys-Tyr-Gln (SEQ ID NO:3) wherein the peptide is linked to the therapeutically active drug to inhibit the therapeutic activity of the drug, and wherein the therapeutically active drug is cleaved from the peptide upon proteolysis by an enzyme having a proteolytic activity of prostate specific antigen (PSA). The invention further provides methods of making and using the claimed compositions.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 2, 2014
    Assignee: GenSpera, Inc.
    Inventors: Samuel R. Denmeade, John T. Isaacs
  • Patent number: 8450280
    Abstract: The invention provides novel peptide prodrugs that contain cleavage sites specifically cleaved by human kallikrein 2 (hK2). These prodrugs are useful for substantially inhibiting the non-specific toxicity of a variety of therapeutic drugs. Upon cleavage of the prodrug by hK2, the therapeutic drugs are activated and exert their toxicity. Methods for treating cell proliferative disorders are also featured in the invention.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 28, 2013
    Assignee: GenbSpera, Inc.
    Inventors: Samuel R. Denmeade, John T. Isaacs, Hans Lilja
  • Publication number: 20120309692
    Abstract: The invention provides novel peptide prodrugs that contain cleavage sites specifically cleaved by human kallikrein 2 (hK2). These prodrugs are useful for substantially inhibiting the non-specific toxicity of a variety of therapeutic drugs. Upon cleavage of the prodrug by hK2, the therapeutic drugs are activated and exert their toxicity. Methods for treating cell proliferative disorders are also featured in the invention.
    Type: Application
    Filed: May 16, 2012
    Publication date: December 6, 2012
    Inventors: Samuel R. Denmeade, John T. Isaacs, Hans Lilja
  • Publication number: 20120270767
    Abstract: The instant invention provides compositions comprising a prodrug, the prodrug comprising a therapeutically active drug; and a peptide selected from the group consisting of the sequences: Ser-Ser-Lys-Tyr-Gln (SEQ ID NO:1); Gly-Lys-Ser-Gln-Tyr-Gln (SEQ ID NO:2); and Gly-Ser-Ala-Lys-Tyr-Gln (SEQ ID NO:3) wherein the peptide is linked to the therapeutically active drug to inhibit the therapeutic activity of the drug, and wherein the therapeutically active drug is cleaved from the peptide upon proteolysis by an enzyme having a proteolytic activity of prostate specific antigen (PSA). The invention further provides methods of making and using the claimed compositions.
    Type: Application
    Filed: May 31, 2012
    Publication date: October 25, 2012
    Inventors: Samuel R. Denmeade, John T. Isaacs
  • Publication number: 20120270768
    Abstract: The instant invention provides compositions comprising a prodrug, the prodrug comprising a therapeutically active drug; and a peptide selected from the group consisting of the sequences: Ser-Ser-Lys-Tyr-Gln (SEQ ID NO:1); Gly-Lys-Ser-Gln-Tyr-Gln (SEQ ID NO:2); and Gly-Ser-Ala-Lys-Tyr-Gln (SEQ ID NO:3) wherein the peptide is linked to the therapeutically active drug to inhibit the therapeutic activity of the thug, and wherein the therapeutically active drug is cleaved from the peptide upon proteolysis by an enzyme having a proteolytic activity of prostate specific antigen (PSA). The invention further provides methods of making and using the claimed compositions.
    Type: Application
    Filed: May 31, 2012
    Publication date: October 25, 2012
    Inventors: Samuel R. Denmeade, John T. Isaacs
  • Publication number: 20110245147
    Abstract: The invention provides novel peptide prodrugs that contain cleavage sites specifically cleaved by human kallikrein 2 (hK2). These prodrugs are useful for substantially inhibiting the non-specific toxicity of a variety of therapeutic drugs. Upon cleavage of the prodrug by hK2, the therapeutic drugs are activated and exert their toxicity. Methods for treating cell proliferative disorders are also featured in the invention.
    Type: Application
    Filed: January 10, 2011
    Publication date: October 6, 2011
    Inventors: Samuel R. Denmeade, John T. Isaacs, Hans Lilja
  • Patent number: 7906477
    Abstract: The invention provides novel peptide prodrugs that contain cleavage sites specifically cleaved by human kallikrein 2 (hK2). These prodrugs are useful for substantially inhibiting the non-specific toxicity of a variety of therapeutic drugs. Upon cleavage of the prodrug by hK2, the therapeutic drugs are activated and exert their toxicity. Methods for treating cell proliferative disorders are also featured in the invention.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: March 15, 2011
    Assignee: Genspera, Inc.
    Inventors: Samuel R. Denmeade, John T. Isaacs, Hans Lilja
  • Patent number: 7838266
    Abstract: Disclosed herein are modified proaerolysin (PA) peptide. In some examples, the proteins include a prostate-specific protease cleavage site and can further include a prostate-tissue-specific binding domain which functionally replaces the native PA binding domain. In other examples, the proteins include a furin cleavage site and a prostate tissue-specific binding domain which functionally replaces the native PA binding domain. Methods of using such peptides to treat prostate cancer are also disclosed.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: November 23, 2010
    Assignees: University of Victoria Innovation and Development Corporation, The Johns Hopkins University
    Inventors: Samuel R. Denmeade, John T. Isaacs, J. Thomas Buckley
  • Publication number: 20100234300
    Abstract: Disclosed herein are modified proaerolysin (PA) peptide. In some examples, the proteins include a prostate-specific protease cleavage site and can further include a prostate-tissue-specific binding domain which functionally replaces the native PA binding domain. In other examples, the proteins include a furin cleavage site and a prostate tissue-specific binding domain which functionally replaces the native PA binding domain. Methods of using such peptides to treat prostate cancer are also disclosed.
    Type: Application
    Filed: May 27, 2010
    Publication date: September 16, 2010
    Inventors: Samuel R. Denmeade, John T. Isaacs, J. Thomas Buckley
  • Patent number: 7745395
    Abstract: Disclosed herein are modified proaerolysin (PA) peptide. In some examples, the proteins include a prostate-specific protease cleavage site and can further include a prostate-tissue-specific binding domain which functionally replaces the native PA binding domain. In other examples, the proteins include a furin cleavage site and a prostate tissue-specific binding domain which functionally replaces the native PA binding domain. Methods of using such peptides to treat prostate cancer are also disclosed.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: June 29, 2010
    Assignees: University of Victoria Innovatiion and Development Corporation, The Johns Hopkins University
    Inventors: Samuel R. Denmeade, John T. Isaacs, J. Thomas Buckley
  • Publication number: 20100120697
    Abstract: The instant invention provides compositions comprising a prodrug, the prodrug comprising a therapeutically active drug; and a peptide selected from the group consisting of the sequences: Ser-Ser-Lys-Tyr-Gln (SEQ ID NO:1); Gly-Lys-Ser-Gln-Tyr-Gln (SEQ ID NO:2); and Gly-Ser-Ala-Lys-Tyr-Gln (SEQ ID NO:3) wherein the peptide is linked to the therapeutically active drug to inhibit the therapeutic activity of the drug, and wherein the therapeutically active drug is cleaved from the peptide upon proteolysis by an enzyme having a proteolytic activity of prostate specific antigen (PSA). The invention further provides methods of making and using the claimed compositions.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Inventors: Samuel R. Denmeade, John T. Isaacs