Patents by Inventor Samuel Ray Denmeade

Samuel Ray Denmeade 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: 11780833
    Abstract: Compounds are provided herein which are emetine derivatives that can be used as prodrugs which selectively undergo activation to release emetine in specific cellular conditions. In one aspect, a blocking group is incorporated onto the emetine molecule by the derivization of the N2?-position with moieties that can be selectively removed by hydrolysis in the cancer/tumor microenvironment. Such compounds are less cytotoxic than emetine and are substantially inactive in non-cancerous cells. In one aspect, the compounds described herein can be used for the treatment of metastatic and non-metastatic cancers, including, for example, breast cancer, prostate cancer, lung cancer, and leukemia.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 10, 2023
    Assignee: HOWARD UNIVERSITY
    Inventors: Oladapo Bakare, Samuel Ray Denmeade, Emmanuel S. Akinboye
  • Publication number: 20190016716
    Abstract: Compounds are provided herein which are emetine derivatives that can be used as prodrugs which selectively undergo activation to release emetine in specific cellular conditions. In one aspect, a blocking group is incorporated onto the emetine molecule by the derivization of the N2?-position with moieties that can be selectively removed by hydrolysis in the cancer/tumor microenvironment. Such compounds are less cytotoxic than emetine and are substantially inactive in non-cancerous cells. In one aspect, the compounds described herein can be used for the treatment of metastatic and non-metastatic cancers, including, for example, breast cancer, prostate cancer, lung cancer, and leukemia.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 17, 2019
    Inventors: Oladapo Bakare, Samuel Ray Denmeade, Emmanuel S. Akinboye
  • Publication number: 20170190700
    Abstract: Compounds are provided herein which are emetine derivatives that can be used as prodrugs which selectively undergo activation to release emetine in specific cellular conditions. In one aspect, a blocking group is incorporated onto the emetine molecule by the derivization of the N2?-position with moieties that can be selectively removed by hydrolysis in the cancer/tumor microenvironment. Such compounds are less cytotoxic than emetine and are substantially inactive in non-cancerous cells. In one aspect, the compounds described herein can be used for the treatment of metastatic and non-metastatic cancers, including, for example, breast cancer, prostate cancer, lung cancer, and leukemia.
    Type: Application
    Filed: November 15, 2016
    Publication date: July 6, 2017
    Inventors: Oladapo Bakare, Samuel Ray Denmeade, Emmanuel S. Akinboye
  • Patent number: 9492560
    Abstract: Compounds are provided herein which are emetine derivatives that can be used as prodrugs which selectively undergo activation to release emetine in specific cellular conditions. In one aspect, a blocking group is incorporated onto the emetine molecule by the derivization of the N2?-position with moieties that can be selectively removed by hydrolysis in the cancer/tumor microenvironment. Such compounds are less cytotoxic than emetine and are substantially inactive in non-cancerous cells. In one aspect, the compounds described herein can be used for the treatment of metastatic and non-metastatic cancers, including, for example, breast cancer, prostate cancer, lung cancer, and leukemia.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 15, 2016
    Inventors: Oladapo Bakare, Samuel Ray Denmeade, Emmanuel S. Akinboye
  • Patent number: 8772226
    Abstract: Various embodiments of this invention relate generally to targeted activation and delivery of therapeutic drugs to cells that produce prostate specific antigen (PSA), prostate specific membrane antigen (PSMA) or human glandular kallikrein (hK2). Various further embodiments relate more specifically to PSMA-specific peptide prodrugs that become activated to yield therapeutic drugs. Further aspects of various embodiments of the present invention also relate to methods and compositions for treating or preventing cancers and methods and compositions for detecting and/or imaging cancers.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 8, 2014
    Assignee: The Johns Hopkins University
    Inventors: Samuel Ray Denmeade, John Tod Isaacs, Soeren Brogger Christensen
  • Publication number: 20120093724
    Abstract: Various embodiments of this invention relate generally to targeted activation and delivery of therapeutic drugs to cells that produce prostate specific antigen (PSA), prostate specific membrane antigen (PSMA) or human glandular kallikrein (hK2). Various further embodiments relate more specifically to PSMA-specific peptide prodrugs that become activated to yield therapeutic drugs. Further aspects of various embodiments of the present invention also relate to methods and compositions for treating or preventing cancers and methods and compositions for detecting and/or imaging cancers.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 19, 2012
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Samuel Ray Denmeade, John Thomas Isaacs, Soeren Brogger Christensen