Patents by Inventor Ralph Mazitschek

Ralph Mazitschek 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: 20190072562
    Abstract: A multiphoton fluorescence anisotropy microscopy live cell imaging system and method to measure and map drug-target interaction in real time at subcellular resolution. Proposed modality enables a direct measurement of drug/target binding in vivo, high-resolution spatial and temporal mapping of bound and unbound drug distribution, and presents an versatile tool to enhance understanding of drug activity. Application of the system to measurement of intracellular target engagement of the chemotherapeutic Olaparib, a poly(ADP-ribose) polymerase inhibitor, in live cells and within a tumor in vivo.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: Claudio Vinegoni, Ralph Weissieder, J. Matthew Dubach, Ralph Mazitschek
  • Publication number: 20190070295
    Abstract: This invention relates to photoswitchable inhibitors of histone deacetylases and methods of using the same.
    Type: Application
    Filed: May 1, 2018
    Publication date: March 7, 2019
    Inventors: Ralph Mazitschek, Balaram Ghosh, James Adam Hendricks, Surya Reis, Stephen John Haggarty
  • Publication number: 20190062254
    Abstract: Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Ralph Mazitschek, Umut Ozcan
  • Patent number: 10172905
    Abstract: The invention relates to methods of treating protein degradation disorders, such cellular proliferative disorders (e.g., cancer) and protein deposition disorders (e.g., neurodegenerative disorders). The invention provides methods and pharmaceutical compositions for treating these diseases using aggresome inhibitors or combinations of aggresome inhibitors and proteasome inhibitors. The invention further relates to methods and pharmaceutical compositions for treating multiple myeloma. New HDAC/TDAC inhibitors and aggresome inhibitors are also provided as well as synthetic methodologies for preparing these compounds.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: January 8, 2019
    Assignees: President and Fellows of Harvard College, Dana-Farber Cancer Institute, Inc.
    Inventors: Kenneth C. Anderson, James E. Bradner, Edward Franklin Greenberg, Teru Hideshima, Nicholas Paul Kwiatkowski, Ralph Mazitschek, Stuart L. Schreiber, Jared Shaw, Stephen J. Haggarty
  • Patent number: 10172821
    Abstract: In recognition of the need to develop novel therapeutic agents, the present invention provides novel histone deacetylase inhibitors. These compounds include an ester bond making them sensitive to deactivation by esterases. Therefore, these compounds are particularly useful in the treatment of skin disorders. When the compounds reaches the bloodstream, an esterase or an enzyme with esterase activity cleaves the compound into biologically inactive fragments or fragments with greatly reduced activity Ideally these degradation products exhibit a short serum and/or systemic half-life and are eliminated rapidly. These compounds and pharmaceutical compositions thereof are particularly useful in treating cutaneous T-cell lymphoma, neurofibromatosis, psoriasis, hair loss, skin pigmentation, and dermatitis, for example. The present invention also provides methods for preparing compounds of the invention and intermediates thereto.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 8, 2019
    Assignee: President & Fellows of Harvard College Dana-Farber Cancer Institute, Inc.
    Inventors: James Elliot Bradner, Ralph Mazitschek
  • Publication number: 20180362575
    Abstract: Described herein, inter alia, are compositions and methods for treating or preventing obesity and using the same.
    Type: Application
    Filed: October 21, 2016
    Publication date: December 20, 2018
    Inventors: Ralph Mazitschek, Yanbing Ding, Kaisheng Shen
  • Patent number: 10155742
    Abstract: The present invention provides halofuginol, and derivatives and salts thereof, including diasteromerically enriched compositions thereof. The invention also provides pharmaceutical and cosmetic compositions thereof as well as methods for using halofuginol and derivatives thereof in treating chronic inflammatory diseases, autoimmune diseases, dry eye syndrome, fibrosis, scar formation, angiogenesis, viral infections, malaria, ischemic damage, transplant rejection, neurodegenerative diseases, T-cell neoplasms, and cosmetic conditions.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 18, 2018
    Assignees: President and Fellows of Harvard College, The General Hospital Corporation
    Inventors: Malcolm Whitman, Tracy Keller, Ralph Mazitschek
  • Patent number: 10125131
    Abstract: Provided herein are HDAC3 inhibitors, as well as methods of treatment comprising administering these compounds to a subject in need thereof.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 13, 2018
    Assignee: REGENACY PHARMACEUTICALS, LLC
    Inventors: John H. van Duzer, Ralph Mazitschek
  • Patent number: 10059657
    Abstract: HDAC inhibitors of the general formula (I) and (II) and pharmaceutically acceptable salts thereof, as described herein, are useful as inhibitors of histone deacetylases or other deacetylases, and thus are useful for the treatment of various diseases and disorders associated with acetylase/deacetylase activity as described herein (e.g., cancer). In certain embodiments, the compounds of the invention selectively target either a class or isoform of the HDAC family. Another aspect of the invention provides an assay for determining the inhibitory effect of a test compound on an HDAC protein comprising: incubating the HDAC protein with a substrate of general formula (IIIc) in the presence of a test compound; and determining the activity of the HDAC protein.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 28, 2018
    Assignees: President and Fellows of Harvard College, Dana-Farber Cance Institute, Inc.
    Inventors: Ralph Mazitschek, James E. Bradner
  • Publication number: 20180194709
    Abstract: Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.
    Type: Application
    Filed: February 21, 2018
    Publication date: July 12, 2018
    Inventors: Ralph Mazitschek, Umut Ozcan
  • Publication number: 20180185314
    Abstract: Pentacyclic triterpene weight loss agents are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the weight loss agents, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The weight loss agents can also be co-administered with leptin or a leptin analog.
    Type: Application
    Filed: February 28, 2018
    Publication date: July 5, 2018
    Inventors: Umut Ozcan, Joseph Majzoub, Ralph Mazitschek, Isin Cakir, Serkan Cabi
  • Patent number: 10005793
    Abstract: This invention relates to water-soluble mono-alkoxy and mono-alkyne BODIPY derivatives, including methods for making the same. For examples, provided herein are compounds of Formula (I): (I) or a pharmaceutically acceptable salt thereof, wherein: (a) is a BODIPY ligand system; X is a halogen; L is absent or a linker; and Z is selected from the group consisting of: a group reactive with a biologically active molecule and a detectable agent.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: June 26, 2018
    Assignee: The General Hospital Corporation
    Inventors: Ralph Mazitschek, Alexandra M. Courtis, James Adam Hendricks
  • Patent number: 9988343
    Abstract: The present invention relates to compounds which inhibit histone deacetylase activity and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing these compounds. The present invention also relates to methods of treating and preventing hematological cell proliferative disorders, such as multiple myeloma, by administering these compounds and pharmaceutical compositions to subjects in need thereof.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 5, 2018
    Assignees: Dana-Farber Cancer Institute, Inc., The General Hospital Corporation
    Inventors: Ralph Mazitschek, Teru Hideshima, Kenneth C. Anderson, Stephen J. Haggarty, Balaram Ghosh
  • Patent number: 9981038
    Abstract: This invention relates to photoswitchable inhibitors of histone deacetylases and methods of using the same. Provided herein are inhibitors of HDAC having photoswitchable modulators of protein function with short thermal relaxation kinetics. The compounds are diazo compounds including a substituted or unsubstituted aryl or heteroaryl ring, wherein at least one of the rings is substituted with one or more HDAC targeting elements.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 29, 2018
    Assignee: The General Hospital Corporation
    Inventors: Ralph Mazitschek, Balaram Ghosh, James Adam Hendricks, Surya Reis, Stephen John Haggarty
  • Publication number: 20180141923
    Abstract: Provided herein are compounds, pharmaceutical compositions comprising such compounds, and methods of using such compounds to treat diseases or disorders associated with HDAC1 and/or HDAC2 activity.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventors: John H. van Duzer, Ralph Mazitschek
  • Patent number: 9969679
    Abstract: The present invention provides novel compounds of Formula (I), and pharmaceutically acceptable salts, tautomers, stereoisomers, solvates, hydrates, polymorphs, and compositions thereof. Also provided are methods and kits involving the inventive compounds for treating proliferative diseases (e.g., cancers (e.g., breast cancer, prostate cancer, lung cancer, and ovarian cancer), benign neoplasms, angiogenesis, inflammatory diseases, and autoimmune diseases) in a subject. Treatment of a subject with a proliferative disease using a compound of the invention may enhance the anti-tumor immune response by inhibiting or eliminating the immune suppression mediated by immune suppressor myeloid cells (MDSCs), inducing apoptosis, and/or inhibit or down-regulate proteins (e.g., epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 2 (HER2), estrogen receptor (ER), X-linked inhibitor of apoptosis protein (XIAP), and heat shock protein 90 (Hsp90)) in the subject.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: May 15, 2018
    Assignees: Dana-Farber Cancer Institute, Inc., The General Hospital Corporation
    Inventors: Kenneth C. Anderson, Teru Hideshima, Ralph Mazitschek, Gullu Gorgun
  • Patent number: 9968575
    Abstract: Pentacyclic triterpene weight loss agents are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the weight loss agents, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The weight loss agents can also be co-administered with leptin or a leptin analog.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: May 15, 2018
    Assignees: The Children's Medical Center Corporation, The General Hospital Corporation
    Inventors: Umut Ozcan, Joseph Majzoub, Ralph Mazitschek, Isin Cakir, Serkan Cabi
  • Publication number: 20180127356
    Abstract: The present invention relates to pyrimidine hydroxy amide compounds, the use of such compounds in the inhibition of HDAC6, and the use of such compounds in the treatment of various diseases, disorders, or conditions related to HDAC6.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 10, 2018
    Inventors: John H. van Duzer, Ralph Mazitschek
  • Patent number: 9957259
    Abstract: Provided herein are compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with HDAC activity, particularly diseases or disorders that involve activity of HDAC1 and/or HDAC2. Such diseases include cancer, sickle-cell anemia, beta-thalassemia, and HIV.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 1, 2018
    Assignee: REGENACY PHARMACEUTICALS, LLC
    Inventors: John H. van Duzer, Ralph Mazitschek
  • Patent number: 9925161
    Abstract: Pentacyclic triterpene weight loss agents are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the weight loss agents, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The weight loss agents can also be co-administered with leptin or a leptin analog.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 27, 2018
    Assignees: The Children's Medical Center Corporation, The General Hospital Corporation
    Inventors: Umut Ozcan, Joseph Majzoub, Ralph Mazitschek, Isin Cakir, Serkan Cabi