Patents by Inventor David A. Spiegel

David A. Spiegel 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: 20220234989
    Abstract: The present invention includes DNP derivatives that are useful for preventing or treating a metabolic disease or disorder in a subject in need thereof. In certain embodiments, the subject is further administered at least one additional therapeutic agent.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 28, 2022
    Inventors: Gerald I. Shulman, David A. Spiegel
  • Publication number: 20220111060
    Abstract: The present invention relates to compounds which function as antibody mimetic compounds. These compounds are bifuinctional/multifuinctional compounds which contain at least one cancer cell binding moiety which selectively binds to prostate specific membrane antigen (PSMA) and a FC receptor binding moiety which modulates an FC immune receptor, preferably a Fc?RI receptor. Compounds according to the present invention bind selectively to cancer cells which upregulate PSMA and through that interaction, place the Fc receptor binding moiety of the compound in proximity to a Fc receptor, preferably a Fc?RI receptor, which can modulate (preferably, upregulate) a humoral response in a patient to cancer cells. Through this biological action of the compounds according to the present invention, cancer cells, including metastatic cancer cells, especially prostate cancer cells can be immune regulated, resulting in the favorable therapy of cancer in a patient.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 14, 2022
    Inventors: David A. Spiegel, Patrick McEnaney, Kelly Fitzgerald
  • Publication number: 20220089579
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-HI's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-HI's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 24, 2022
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20220023428
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Application
    Filed: May 17, 2021
    Publication date: January 27, 2022
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Patent number: 11136316
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-HI's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-HI's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: October 5, 2021
    Assignee: YALE UNIVERSITY
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20210284988
    Abstract: The present invention relates to chimeric (preferably, bifunctional) compounds, compositions comprising those compounds and methods of treating cancer in a patient or subject, especially including metastatic cancer where cancer cells exhibit ovrexpression (heightened expression) of cell surface urokinase-type plasminogen activator receptor (urokinase receptor) compared to normal (non-cancerous) cells. The compounds preferably covalently bind to the urokinase receptor and recruit native antibodies of the patient or subject where the antibodies can selectively degrade and/or deactivate targeted cancer cells through antibody-dependent cellular phagocytosis and/or antibody-dependent cellular cytotoxicity (ADCC) against a large number and variety of cancers, thus providing cancer cell death and/or an inhibition of growth, elaboration and/or metastasis of the cancer, including remission and cure of the patient's cancer.
    Type: Application
    Filed: February 23, 2021
    Publication date: September 16, 2021
    Inventors: David A. Spiegel, Charles E. Jakobsche
  • Patent number: 11014992
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: May 25, 2021
    Assignee: YALE UNIVERSITY
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Publication number: 20210145974
    Abstract: The present invention is directed to bifunctional small molecules which contain a circulating protein binding moiety (CPBM) linked through a linker group to a cellular receptor binding moiety (CRBM) which is a membrane receptor of degrading cell such as a hepatocyte or other degrading cell. In embodiments, the (CRBM) is a moiety which binds to asialoglycoprotein receptor (an asialoglycoprotein receptor binding moiety, or ASGPRBM) of a hepatocyte. In additional embodiments, the (CRBM) is a moiety which binds to a receptor of other cells which can degrade proteins, such as a LRP1, LDLR, Fc?RI, FcRN, Transferrin or Macrophage Scavenger receptor. Pharmaceutical compositions based upon these bifunctional small molecules represent an additional aspect of the present invention. These compounds and/or compositions may be used to treat disease states and conditions by removing circulating proteins through degradation in the hepatocytes or macrophages of a patient or subject in need of therapy.
    Type: Application
    Filed: April 8, 2019
    Publication date: May 20, 2021
    Inventors: David Spiegel, David Caianiello, Mengwen Zhang
  • Publication number: 20210139436
    Abstract: The present invention is directed to bi-functional compounds which find use as pharmaceutical agents in the treatment of disease states and/or conditions which are mediated through macrophage migration inhibitory factor (MIF) or immunoglubin G (IgG). The present invention is also directed to pharmaceutical compositions which comprise these bi-functional compounds as well as methods for treating disease states and/or conditions which are mediated through MIF/IgG or where MIF/IgG is a contributing factor to the development and perpetuation of diseases and/or conditions, especially including autoimmune diseases and cancer, among others. The purpose of the present invention is to provide a molecular strategy to lower plasma MIF/IgG level in patients with autoimmune diseases or certain types of cancers.
    Type: Application
    Filed: April 8, 2019
    Publication date: May 13, 2021
    Inventors: David Spiegel, David Caianiello
  • Patent number: 10961527
    Abstract: The present invention relates to chimeric (preferably, bifunctional) compounds, compositions comprising those compounds and methods of treating cancer in a patient or subject, especially including metastatic cancer where cancer cells exhibit overexpression (heightened expression) of cell surface urokinase-type plasminogen activator receptor (urokinase receptor) compared to normal (non-cancerous) cells. The compounds preferably covalently bind to the urokinase receptor and recruit native antibodies of the patient or subject where the antibodies can selectively degrade and/or deactivate targeted cancer cells through antibody-dependent cellular phagocytosis and/or antibody-dependent cellular cytotoxicity (ADCC) against a large number and variety of cancers, thus providing cancer cell death and/or an inhibition of growth, elaboration and/or metastasis of the cancer, including remission and cure of the patient's cancer.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 30, 2021
    Assignee: YALE UNIVERSITY
    Inventors: David A. Spiegel, Charles E. Jakobsche
  • Publication number: 20210085796
    Abstract: The present invention provides drug modifications for improving biodistribution and/or specificity of an anticancer drug. In certain embodiments, the compound of the invention comprises a drug, a linker and a core acid. The core acid can be varied to tune the properties of the compound within the body such that the compound more selectively distributes to tumors and is, or becomes active in the cytosol.
    Type: Application
    Filed: July 27, 2018
    Publication date: March 25, 2021
    Inventors: John DEACON, Kung-Pern WANG, Donald ENGELMAN, Denton HOYER, Apiwat WANGWEERAWONG, William HUNGERFORD, Venkatareddy SABBASANI, David SPIEGEL
  • Patent number: 10912836
    Abstract: The present invention relates to compounds which function as antibody mimetic compounds. These compounds are bifunctional/multifunctional compounds which contain at least one cancer cell binding moiety which selectively binds to prostate specific membrane antigen (PSMA) and a FC receptor binding moiety which modulates an FC immune receptor, preferably a Fc?RI receptor. Compounds according to the present invention bind selectively to cancer cells which upregulate PSMA and through that interaction, place the Fc receptor binding moiety of the compound in proximity to a Fc receptor, preferably a Fc?RI receptor, which can modulate (preferably, upregulate) a humoral response in a patient to cancer cells. Through this biological action of the compounds according to the present invention, cancer cells, including metastatic cancer cells, especially prostate cancer cells can be immune regulated, resulting in the favorable therapy of cancer in a patient.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 9, 2021
    Assignee: YALE UNIVERSITY
    Inventors: David A. Spiegel, Patrick McEnaney, Kelly Fitzgerald
  • Publication number: 20200392121
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-HI's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-HI's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 17, 2020
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20200354476
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 12, 2020
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Publication number: 20200354306
    Abstract: The present invention includes DNP derivatives that are useful for preventing or treating a metabolic disease or disorder in a subject in need thereof. In certain embodiments, the subject is further administered at least one additional therapeutic agent.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Inventors: Gerald I. Shulman, David A. Spiegel
  • Patent number: 10781161
    Abstract: The present invention includes DNP derivatives that are useful for preventing or treating a metabolic disease or disorder in a subject in need thereof. In certain embodiments, the subject is further administered at least one additional therapeutic agent.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: September 22, 2020
    Assignee: Yale University
    Inventors: Gerald I. Shulman, David A. Spiegel
  • Patent number: 10780084
    Abstract: The present invention relates to chimeric (including bifunctional) compounds, compositions comprising those compounds and methods of treating cancer in a patient or subject, especially including metastatic and other cancers where cancer cells exhibit overexpression (heightened expression) of cell surface urokinase-type plasminogen activator receptor (urokinase receptor) compared to normal (non-cancerous) cells.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: September 22, 2020
    Assignees: YALE UNIVERSITY, KLEO PHARMACEUTICALS, INC.
    Inventors: David Spiegel, H. Marie Loughran, Jeffrey C. Pelletier, Allen B. Reitz, Matthew Ernest Welsch
  • Publication number: 20200223860
    Abstract: Glucosepane is a structurally complex protein post-translational modification (PTM) believed to exist in all living organisms. Research in humans suggests that glucosepane plays a critical role in the pathophysiology of both diabetes and human aging; yet comprehensive biological investigations of this metabolite have been greatly hindered by a scarcity of chemically homogeneous material available for study. Glucosepane possesses a unique chemical structure that incorporates a surprising, never-before-prepared non-aromatic tautomer of imidazole (hereafter termed an “iso-imidazole”), rendering it a challenging target for chemical synthesis. In this application, the inventors report the first total synthesis of glucosepane, enabled by the development of a novel one-pot method for preparation of the iso-imidazole core. The synthesis of the present invention is concise (8-steps starting from commercial materials), convergent, high-yielding (12% overall), and enantioselective.
    Type: Application
    Filed: November 15, 2019
    Publication date: July 16, 2020
    Inventors: David Spiegel, Cristian Draghichi
  • Patent number: 10703743
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-HI's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-HI's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 7, 2020
    Assignee: YALE UNIVERSITY
    Inventors: David Spiegel, Christopher Parker
  • Patent number: 10703823
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: July 7, 2020
    Assignee: YALE UNIVERSITY
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang