Patents by Inventor Nipun Davar

Nipun Davar 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: 11963971
    Abstract: Embodiments of the present invention provide solid oral dosage forms that upon daily administration to a subject provide plasma levels of decitabine with a 5-day AUC for decitabine that is equivalent to the 5-day AUC for a daily IV dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided according to embodiments of the present invention are solid oral dosage forms wherein upon daily administration to a subject provides a pharmacodynamic effect that is equivalent to the pharmacodynamic effect for a daily intravenous dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided are methods of treatment using a solid oral dosage form according to an embodiment of the invention.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 23, 2024
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Aram Oganesian, Nipun Davar, Jim Hwaicher Kou
  • Publication number: 20230348352
    Abstract: A method of synthesizing anhydrous lactic acid is provided by reacting a compound of formula (Ia): with an acid compound of formula HnX in a first solvent to produce a reaction mixture comprising a compound of formula (Ib) and a lactic acid compound of formula (I) in solution with the first solvent and/or water. n is an integer other than 0, x is 0, or an integer other than 0, M is an alkali metal or alkaline earth metal and X is the conjugate base of the acid compound of formula HnX. The resulting reaction mixture is filtered to produce a filtrate containing lactic acid in solution. The filtrate is crystalized from a second solvent to produce anhydrous lactic acid.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 2, 2023
    Inventors: Prabhudas BODHURI, Hem Raj KHATRI, Nipun DAVAR
  • Publication number: 20230303609
    Abstract: The invention relates to methods of synthesizing 2?-deoxy-2?,2?-difluorotetrahydrouridine with increased purity and uniform particle size distribution. In particular, methods of the invention include crystallization and isolation procedures rendering synthetic reaction intermediates. The invention further includes compositions comprising the final compound in highly pure form, including lower number of impurities and lower levels of individual and total impurities.
    Type: Application
    Filed: April 28, 2023
    Publication date: September 28, 2023
    Inventors: Gemma Zuend, Ian Scott, Nipun Davar, Kimiyoshi Anaka, Masahiro Miyake, Motoshi Matsui
  • Publication number: 20230263818
    Abstract: Embodiments of the present invention provide solid oral dosage forms that upon daily administration to a subject provide plasma levels of decitabine with a 5-day AUC for decitabine that is equivalent to the 5-day AUC for a daily IV dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided according to embodiments of the present invention are solid oral dosage forms wherein upon daily administration to a subject provides a pharmacodynamic effect that is equivalent to the pharmacodynamic effect for a daily intravenous dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided are methods of treatment using a solid oral dosage form according to an embodiment of the invention.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Inventors: Aram Oganesian, Nipun Davar, Jim Hwaicher Kou
  • Publication number: 20230183234
    Abstract: A compound of formula (XXIII) and methods for preparation thereof are provided (XXIII).
    Type: Application
    Filed: May 3, 2021
    Publication date: June 15, 2023
    Inventors: Prabhudas BODHURI, Hem Raj KHATRI, Nipun DAVAR, Ian SCOTT
  • Publication number: 20230089147
    Abstract: Embodiments of the present invention provide solid oral dosage forms that upon daily administration to a subject provide plasma levels of decitabine with a 5-day AUC for decitabine that is equivalent to the 5-day AUC for a daily IV dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided according to embodiments of the present invention are solid oral dosage forms wherein upon daily administration to a subject provides a pharmacodynamic effect that is equivalent to the pharmacodynamic effect for a daily intravenous dose of decitabine of 20 mg/m2 administered as a one hour (1 h) infusion. Also provided are methods of treatment using a solid oral dosage form according to an embodiment of the invention.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 23, 2023
    Inventors: Aram Oganesian, Nipun Davar, Jim Hwaicher Kou
  • Publication number: 20220411457
    Abstract: The invention relates to methods of synthesizing 2?-deoxy-2?,2?-difluorotetrahydrouridine with increased purity and uniform particle size distribution. In particular, methods of the invention include crystallization and isolation procedures rendering synthetic reaction intermediates. The invention further includes compositions comprising the final compound in highly pure form, including lower number of impurities and lower levels of individual and total impurities.
    Type: Application
    Filed: October 7, 2020
    Publication date: December 29, 2022
    Inventors: Gemma Zuend, Ian Scott, Nipun Davar, Kimiyoshi Anaka, Masahiro Miyake, Motoshi Matsui
  • Publication number: 20220144881
    Abstract: The present disclosure provides compounds and processes for the preparation of hypomethylating agents, including guadecitabine and salts thereof. The present disclosure also provides solid forms of guadecitabine sodium, including polymorphs that can exhibit decreased hygroscopicity and increased stability relative to other solid forms.
    Type: Application
    Filed: May 13, 2021
    Publication date: May 12, 2022
    Inventors: Masahiro MIYAKE, Masahiro SOTA, Shin OGASAWARA, Nao KOSEKI, Neil G. ANDERSEN, Ramakrishnan CHIDAMBARAM, Nipun DAVAR
  • Publication number: 20220024965
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a compound described herein or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the compound in a solvent comprising dimethylsulfoxide and optionally one or more co-solvents to form a solution, and then removing the solvent and any co-solvents by a freeze-drying process. Also provided by the invention are lyophilized pharmaceutical compositions and their use in medicine and in particular in the treatment of cancer.
    Type: Application
    Filed: February 26, 2021
    Publication date: January 27, 2022
    Inventors: Rajashree JOSHI-HANGAL, Nipun DAVAR, Stephen R. PRIEBE
  • Patent number: 10858386
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a compound described herein or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the compound in a solvent comprising dimethylsulfoxide and optionally one or more co-solvents to form a solution, and then removing the solvent and any co-solvents by a freeze-drying process. Also provided by the invention are lyophilized pharmaceutical compositions and their use in medicine and in particular in the treatment of cancer.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 8, 2020
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Rajashree Joshi-Hangal, Nipun Davar, Stephen R. Priebe
  • Publication number: 20200172565
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a compound described herein or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the compound in a solvent comprising dimethylsulfoxide and optionally one or more co-solvents to form a solution, and then removing the solvent and any co-solvents by a freeze-drying process. Also provided by the invention are lyophilized pharmaceutical compositions and their use in medicine and in particular in the treatment of cancer.
    Type: Application
    Filed: November 5, 2019
    Publication date: June 4, 2020
    Inventors: Rajashree JOSHI-HANGAL, Nipun DAVAR, Stephen R. PRIEBE
  • Patent number: 10654876
    Abstract: The present invention provides a new method for making TH-302 and solid forms thereof. The compound in its solid form is an effective anti-cancer agent and may be used in various pharmaceutical compositions, and are particularly effective for the treatment of cancer. The invention also provides a method for preparing such compounds and forms and for treating cancer in a mammal comprising the step of administering a therapeutically effective amount of a solid form of TH-302 thereof.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 19, 2020
    Assignee: Molecular Templates, Inc.
    Inventors: Jian-Xin Duan, Mark Matteucci, Nipun Davar, Denise Andersen
  • Patent number: 10519190
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a compound described herein or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the compound in a solvent comprising dimethylsulfoxide and optionally one or more co-solvents to form a solution, and then removing the solvent and any co-solvents by a freeze-drying process. Also provided by the invention are lyophilized pharmaceutical compositions and their use in medicine and in particular in the treatment of cancer.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: December 31, 2019
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Rajashree Joshi-Hangal, Nipun Davar, Stephen R. Priebe
  • Patent number: 10507210
    Abstract: Compositions containing and methods of administering TH-4000 are useful in treatment of cancer alone or in combination with other anti-cancer agents.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 17, 2019
    Assignee: Auckland UniServices Limited
    Inventors: Adam Vorn Patterson, Jeffrey Bruce Smaill, Shevan Silva, Christopher Paul Guise, Matthew Roy Bull, Victoria Jackson, Tillman Pearce, Nipun Davar
  • Publication number: 20190127404
    Abstract: The present invention provides a new method for making TH-302 and solid forms thereof. The compound in its solid form is an effective anti-cancer agent and may be used in various pharmaceutical compositions, and are particularly effective for the treatment of cancer. The invention also provides a method for preparing such compounds and forms and for treating cancer in a mammal comprising the step of administering a therapeutically effective amount of a solid form of TH-302 thereof.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 2, 2019
    Applicant: Molecular Templates, Inc.
    Inventors: Jian-Xin Duan, Mark Matteucci, Nipun Davar, Denise Andersen
  • Publication number: 20190085018
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a compound described herein or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the compound in a solvent comprising dimethylsulfoxide and optionally one or more co-solvents to form a solution, and then removing the solvent and any co-solvents by a freeze-drying process. Also provided by the invention are lyophilized pharmaceutical compositions and their use in medicine and in particular in the treatment of cancer.
    Type: Application
    Filed: August 2, 2018
    Publication date: March 21, 2019
    Inventors: Rajashree JOSHI-HANGAL, Nipun DAVAR, Stephen R. PRIEBE
  • Patent number: 10131683
    Abstract: The present invention provides a new method for making TH-302 and solid forms thereof. The compound in its solid form is an effective anti-cancer agent and may be used in various pharmaceutical compositions, and are particularly effective for the treatment of cancer. The invention also provides a method for preparing such compounds and forms and for treating cancer in a mammal comprising the step of administering a therapeutically effective amount of a solid form of TH-302 thereof.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 20, 2018
    Assignee: Molecular Templates, Inc.
    Inventors: Jian-Xin Duan, Mark Matteucci, Nipun Davar, Denise Andersen
  • Publication number: 20170360790
    Abstract: Compositions containing and methods of administering TH-4000 are useful in treatment of cancer alone or in combination with other anti-cancer agents.
    Type: Application
    Filed: December 3, 2015
    Publication date: December 21, 2017
    Applicants: Auckland UniServices Limited, Threshold Pharmaceuticals, Inc.
    Inventors: Adam Vorn Patterson, Jeffrey Bruce Smaill, Shevan Silva, Christopher Paul Guise, Matthew Roy Bull, Victoria Jackson, Tillman Pearce, Nipun Davar
  • Publication number: 20170210769
    Abstract: The present invention provides a new method for making TH-302 and solid forms thereof. The compound in its solid form is an effective anti-cancer agent and may be used in various pharmaceutical compositions, and are particularly effective for the treatment of cancer. The invention also provides a method for preparing such compounds and forms and for treating cancer in a mammal comprising the step of administering a therapeutically effective amount of a solid form of TH-302 thereof.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 27, 2017
    Applicant: THRESHOLD PHARMACEUTICALS, INC.
    Inventors: Jian-Xin Duan, Mark Matteucci, Nipun Davar, Denise Andersen
  • Patent number: 9393192
    Abstract: Dosage forms and methods for providing a substantially ascending rate of release of paliperidone or risperidone are provided. The sustained release dosage forms provide therapeutically effective average steady-state plasma paliperidone or risperidone concentrations when administered once per day. This once-a-day dosing regimen results in only one peak plasma paliperidone or risperidone concentration occurrence in each 24 hour period. In addition, the peak plasma paliperidone or risperidone concentration occurs at a later time following dose administration and exhibits a lesser magnitude than the peak plasma paliperidone or risperidone concentration that occurs following administration of paliperidone or risperidone in an immediate-release dosage form.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: July 19, 2016
    Inventors: Nyomi V. Yam, Iran Reyes, Nipun Davar, Atul D. Ayer, Julie Lee, Sonya Seroff, Suneel K. Gupta, Gayatri Sathyan