Patents by Inventor Barbara S. Slusher

Barbara S. Slusher 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: 20230075584
    Abstract: The presently disclosed subject matter provides methods for treating and diagnosing neurological diseases or disorders using intranasal administration of glutamate carboxypeptidase II (GCP-II) inhibitors in a subject. Methods for imaging GCP-II in a subject, including imaging of the brain and/or peripheral nervous system, also are provided.
    Type: Application
    Filed: May 5, 2022
    Publication date: March 9, 2023
    Inventors: BARBARA S. SLUSHER, RANA RAIS
  • Publication number: 20220370371
    Abstract: Currently available glutaminase inhibitors are generally poorly soluble, metabolically unstable, and/or require high doses, which together reduce their efficacy and therapeutic index. These can be formulated into nanoparticles and delivered safely and effectively for treatment of pancreatic cancer and other glutamine addicted cancers. Studies demonstrate that nanoparticle delivery of BPTES, relative to use of BPTES alone, can be safely administered and provides dramatically improved tumor drug exposure, resulting in greater efficacy. GLS inhibitors can be administered in higher concentrations with sub-100 nm nanoparticles, since the nanoparticles package the drug into “soluble” colloidal nanoparticles, and the nanoparticles deliver higher drug exposure selectively to the tumors due to the enhanced permeability and retention (EPR) effect. These factors result in sustained drug levels above the IC50 within the tumors for days, providing significantly enhanced efficacy compared to unencapsulated drug.
    Type: Application
    Filed: December 6, 2021
    Publication date: November 24, 2022
    Inventors: Justin Hanes, Barbara S. Slusher, Anne Le, Jie Fu, Qingguo Xu, Takashi Tsukamoto
  • Patent number: 11191732
    Abstract: Currently available glutaminase inhibitors are generally poorly soluble, metabolically unstable, and/or require high doses, which together reduce their efficacy and therapeutic index. These can be formulated into nanoparticles and delivered safely and effectively for treatment of pancreatic cancer and other glutamine addicted cancers. Studies demonstrate that nanoparticle delivery of BPTES, relative to use of BPTES alone, can be safely administered and provides dramatically improved tumor drug exposure, resulting in greater efficacy. GLS inhibitors can be administered in higher concentrations with sub-100 nm nanoparticles, since the nanoparticles package the drug into “soluble” colloidal nanoparticles, and the nanoparticles deliver higher drug exposure selectively to the tumors due to the enhanced permeability and retention (EPR) effect. These factors result in sustained drug levels above the IC50 within the tumors for days, providing significantly enhanced efficacy compared to unencapsulated drug.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 7, 2021
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Barbara S. Slusher, Anne Le, Takashi Tsukamoto
  • Publication number: 20200246274
    Abstract: Currently available glutaminase inhibitors are generally poorly soluble, metabolically unstable, and/or require high doses, which together reduce their efficacy and therapeutic index. These can be formulated into nanoparticles and delivered safely and effectively for treatment of pancreatic cancer and other glutamine addicted cancers. Studies demonstrate that nanoparticle delivery of BPTES, relative to use of BPTES alone, can be safely administered and provides dramatically improved tumor drug exposure, resulting in greater efficacy. GLS inhibitors can be administered in higher concentrations with sub-100 nm nanoparticles, since the nanoparticles package the drug into “soluble” colloidal nanoparticles, and the nanoparticles deliver higher drug exposure selectively to the tumors due to the enhanced permeability and retention (EPR) effect. These factors result in sustained drug levels above the IC50 within the tumors for days, providing significantly enhanced efficacy compared to unencapsulated drug.
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Inventors: Justin Hanes, Barbara S. Slusher, Anne Le, Jie Fu, Qingguo Xu
  • Patent number: 10660861
    Abstract: Currently available glutaminase inhibitors are generally poorly soluble, metabolically unstable, and/or require high doses, which together reduce their efficacy and therapeutic index. These can be formulated into nanoparticles and delivered safely and effectively for treatment of pancreatic cancer and other glutamine addicted cancers. Studies demonstrate that nanoparticle delivery of BPTES, relative to use of BPTES alone, can be safely administered and provides dramatically improved tumor drug exposure, resulting in greater efficacy. GLS inhibitors can be administered in higher concentrations with sub-100 nm nanoparticles, since the nanoparticles package the drug into “soluble” colloidal nanoparticles, and the nanoparticles deliver higher drug exposure selectively to the tumors due to the enhanced permeability and retention (EPR) effect. These factors result in sustained drug levels above the IC50 within the tumors for days, providing significantly enhanced efficacy compared to unencapsulated drug.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 26, 2020
    Assignee: The Johns Hopkins University
    Inventors: Justin Hanes, Barbara S. Slusher, Anne Le, Jie Fu, Qingguo Xu
  • Publication number: 20180338910
    Abstract: The presently disclosed subject matter provides methods for treating and diagnosing neurological diseases or disorders using intranasal administration of glutamate carboxypeptidase II (GCP-II) inhibitors in a subject. Methods for imaging GCP-II in a subject, including imaging of the brain and/or peripheral nervous system, also are provided.
    Type: Application
    Filed: January 11, 2016
    Publication date: November 29, 2018
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: BARBARA S. SLUSHER, RANA RAIS
  • Publication number: 20180267067
    Abstract: The presently disclosed subject matter provides methods for quantifying levels of glutamine antagonists, such as 6-diazo-5-oxo-L-norleucine (DON), including such glutamine antagonists resulting from in vivo conversion of ester prodrugs of such glutamine antagonists, in a biological sample.
    Type: Application
    Filed: January 11, 2016
    Publication date: September 20, 2018
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: BARBARA S. SLUSHER, JESSE ALT, CAMILO ROJAS
  • Patent number: 9737552
    Abstract: Described herein are methods for the treatment of cognitive impairment in a subject with a neurological autoimmune disease and methods for determining whether a subject who has a central nervous system autoimmune disease is likely to acquire a cognitive impairment.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: August 22, 2017
    Assignee: The Johns Hopkins University
    Inventors: Adam Kaplin, Barbara S. Slusher, Kristen A. Rahn
  • Publication number: 20170209387
    Abstract: Currently available glutaminase inhibitors are generally poorly soluble, metabolically unstable, and/or require high doses, which together reduce their efficacy and therapeutic index. These can be formulated into nanoparticles and delivered safely and effectively for treatment of pancreatic cancer and other glutamine addicted cancers. Studies demonstrate that nanoparticle delivery of BPTES, relative to use of BPTES alone, can be safely administered and provides dramatically improved tumor drug exposure, resulting in greater efficacy. GLS inhibitors can be administered in higher concentrations with sub-100 nm nanoparticles, since the nanoparticles package the drug into “soluble” colloidal nanoparticles, and the nanoparticles deliver higher drug exposure selectively to the tumors due to the enhanced permeability and retention (EPR) effect. These factors result in sustained drug levels above the IC50 within the tumors for days, providing significantly enhanced efficacy compared to unencapsulated drug.
    Type: Application
    Filed: July 8, 2015
    Publication date: July 27, 2017
    Inventors: Justin Hanes, Barbara S. Slusher, Anne Le, Jie Fu, Qingguo Xu
  • Patent number: 9382229
    Abstract: Compounds, compositions, kits and methods for treating conditions related to neurodegeneration or ocular disease, are disclosed.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 5, 2016
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Donald J. Zack, Cynthia Berlinicke, Laszlo Hackler, Zhiyong Yang, Joseph P. Steiner, Tomas Vojkovsky, Dana Ferraris, Barbara S. Slusher, James Inglese
  • Patent number: 8778688
    Abstract: Described herein are high-throughput methods of monitoring D-serine levels in plasma. The assay involves the use of strong cation solid phase extraction (SPE) to isolate D-serine from plasma, followed by quantitation of D-serine using the D-amino acid oxidase- (DAAO-) catalyzed reaction. Also described are methods of screening for compounds that act as DAAO inhibitors.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 15, 2014
    Assignee: The Johns Hopkins University
    Inventors: Barbara S. Slusher, Jesse Alt, Camilo Rojas, Takashi Tsukamoto
  • Patent number: 8771975
    Abstract: Provided herein are methods for quantitating glutamate carboxypeptidase II activity in a biological sample, such as a skin biopsy sample, and for determining whether an agent is inhibiting GCP in a subject.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: July 8, 2014
    Assignee: The Johns Hopkins University
    Inventors: Barbara S. Slusher, Michael Polydefkis, Camilo Rojas, Marigo Stathis
  • Publication number: 20140187540
    Abstract: Compounds, compositions, kits and methods for treating conditions related to neurodegeneration or ocular disease, are disclosed.
    Type: Application
    Filed: February 15, 2012
    Publication date: July 3, 2014
    Applicant: The Johns Hopkins University
    Inventors: Donald J. Zack, Cynthia Berlinicke, Laszlo Hackler, Zhiyong Yang, Joseph P. Steiner, Tomas Vojkovsky, Dana Ferraris, Barbara S. Slusher, James Inglese
  • Publication number: 20130344000
    Abstract: Described herein are methods for the treatment of cognitive impairment in a subject with a neurological autoimmune disease and methods for determining whether a subject who has a central nervous system autoimmune disease is likely to acquire a cognitive impairment.
    Type: Application
    Filed: December 14, 2011
    Publication date: December 26, 2013
    Applicant: The Johns Hopkins University
    Inventors: Adam Kaplin, Barbara S. Slusher, Kristen A. Rahn
  • Publication number: 20130344525
    Abstract: Provided herein are methods for quantitating glutamate carboxypeptidase II activity in a biological sample, such as a skin biopsy sample, and for determining whether an agent is inhibiting GCP in a subject.
    Type: Application
    Filed: January 5, 2012
    Publication date: December 26, 2013
    Applicant: 6The Hohns Hopkins University
    Inventors: Barbara S. Slusher, Michael Polydefkis, Camilo Rojas, Marigo Stathis
  • Patent number: 7968593
    Abstract: This invention provides new compounds, pharmaceutical compositions and diagnostic kits comprising such compounds, and methods of using such compounds for inhibiting NAALADase enzyme activity, detecting diseases where NAALADase levels are altered, inhibiting angiogenesis, effecting a TGF-? activity or a neuronal activity, and treating a glutamate abnormality, a compulsive disorder, neuropathy, pain, a prostate disease, cancer, Huntington's disease, diabetes, a retinal disorder or glaucoma.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 28, 2011
    Assignee: Eisai Inc.
    Inventors: Barbara S. Slusher, Takashi Tsukamoto
  • Publication number: 20100048667
    Abstract: This invention provides new compounds, pharmaceutical compositions and diagnostic kits comprising such compounds, and methods of using such compounds for inhibiting NAALADase enzyme activity, detecting diseases where NAALADase levels are altered, inhibiting angiogenesis, effecting a TGF-? activity or a neuronal activity, and treating a glutamate abnormality, a compulsive disorder, neuropathy, pain, a prostate disease, cancer, Huntington's disease, diabetes, a retinal disorder or glaucoma.
    Type: Application
    Filed: May 26, 2009
    Publication date: February 25, 2010
    Inventors: Barbara S. SLUSHER, Takashi TSUKAMOTO
  • Patent number: 7553866
    Abstract: This invention provides new compounds, pharmaceutical compositions and diagnostic kits comprising such compounds, and methods of using such compounds for inhibiting NAALADase enzyme activity, detecting diseases where NAALADase levels are altered, inhibiting angiogenesis, effecting a TGF-? activity or a neuronal activity, and treating a glutamate abnormality, a compulsive disorder, neuropathy, pain, a prostate disease, cancer, Huntington's disease, diabetes, a retinal disorder or glaucoma.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: June 30, 2009
    Assignee: Eisai Corporation of North America
    Inventors: Barbara S. Slusher, Takashi Tsukamoto
  • Publication number: 20080214508
    Abstract: A method of administering a prodrug of propofol, preferably O-phosphonooxymethyl propofol disodium salt, comprises the subcutaneous or rectal administration of the prodrug in amounts sufficient to induce or maintain a generalized anesthetized state, a conscious sedated state, or to treat insomnia, anxiety, nausea, vomiting, pruritus, epilepsy, and a range of pain syndromes, including migraine pain, and other medical conditions.
    Type: Application
    Filed: September 14, 2005
    Publication date: September 4, 2008
    Applicant: MGI GP, INC.
    Inventors: Barbara S. Slusher, Krystyna Wozniak
  • Patent number: 7220780
    Abstract: The present invention relates to pharmaceutical compositions and methods for treating a retinal disorder or glaucoma using NAALADase inhibitors.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 22, 2007
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Barbara S. Slusher, Krystyna Wozniak