Patents by Inventor Sanjeev Redkar

Sanjeev Redkar 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: 20230338294
    Abstract: The present disclosure provides a pharmaceutical oral dosage form. In one embodiment, the dosage form comprises a formulation comprising an active pharmaceutical ingredient (API) and a polymer, wherein said API is a compound inhibiting c-Met tyrosine kinase.
    Type: Application
    Filed: April 24, 2021
    Publication date: October 26, 2023
    Inventors: Sanjeev REDKAR, Thomas STUMPFIG, Anne MUSKE-DUKES-DRIGGS, Thomas REYNOLDS, Thurman Russell FALK, Mike Tso-Ping LI, Prema VIJAYAKUMAR
  • Publication number: 20220252603
    Abstract: Provided herein is related generally to the field of molecular biology and growth factor regulation. More specifically, provided herein are methods useful for treating cancer patient using c-Met inhibitor based on the identification of an increased c-Met expression and at least one c-Met gene alteration, e.g. c-Met mutation, c-Met fusion gene and c-Met gene amplification.
    Type: Application
    Filed: June 8, 2020
    Publication date: August 11, 2022
    Inventors: Lan YANG, Qian SHI, Sanjeev REDKAR, Guoliang YU, Fabio Maurizio BENEDETTI, Xiaoling ZHANG, Biao MA
  • Publication number: 20220016033
    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: March 2, 2021
    Publication date: January 20, 2022
    Inventors: Rajashree JOSHI-HANGAL, Sanjeev REDKAR
  • Publication number: 20220000900
    Abstract: Oligonucleotide analogues are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogues rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogues can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogues and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogues, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Application
    Filed: January 26, 2021
    Publication date: January 6, 2022
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar
  • Patent number: 11058705
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 13, 2021
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Patent number: 10933079
    Abstract: Oligonucleotide analogues are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogues rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogues can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogues and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogues, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: March 2, 2021
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar
  • Publication number: 20200215092
    Abstract: Oligonucleotide analogues are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogues rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogues can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogues and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogues, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 9, 2020
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar
  • Publication number: 20200155588
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 21, 2020
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Publication number: 20200093748
    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: September 27, 2019
    Publication date: March 26, 2020
    Inventors: Rajashree JOSHI-HANGAL, Sanjeev REDKAR
  • Patent number: 10517886
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 31, 2019
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Patent number: 10485764
    Abstract: The invention provides a method of preparing a lyophilized pharmaceutical composition containing a dinucleotide compound or a pharmaceutically-acceptable salt thereof. The process comprises dissolving the dinucleotide 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: July 1, 2016
    Date of Patent: November 26, 2019
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Rajashree Joshi-Hangal, Sanjeev Redkar
  • Patent number: 10456415
    Abstract: Oligonucleotide analogues are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogues rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogues can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogues and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogues, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 29, 2019
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar
  • Publication number: 20180369267
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 27, 2018
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Publication number: 20180169117
    Abstract: Provided herein are formulations of (2,4-dihydroxy-5-isopropyl-phenyl)-[5-(4-methyl-piperazin-1-ylmethyl)-1,3-dihydro-isoindol-2-yl]-methanone of formula (I): or a L-lactate salt thereof, in a phosphate or succinate buffer.
    Type: Application
    Filed: March 19, 2015
    Publication date: June 21, 2018
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: David Alexander RAWLINS, Sanjeev REDKAR, Rajashree JOSHI-HANGAL
  • Patent number: 9913856
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: March 13, 2018
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Publication number: 20170360791
    Abstract: Pharmaceutical compositions comprising poorly soluble compounds, such as BCS class II or class IV drugs (e.g. amuvatinib), are provided. The pharmaceutical compositions are effective for increasing the bioavailability of the compounds. Related kits and methods are also provided.
    Type: Application
    Filed: December 4, 2015
    Publication date: December 21, 2017
    Inventors: Rajashree Joshi-Hangal, Sanjeev Redkar, Chunlin Tang
  • Publication number: 20170035794
    Abstract: Oligonucleotide analogues are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogues rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogues can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogues and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogues, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Application
    Filed: September 28, 2016
    Publication date: February 9, 2017
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar
  • Publication number: 20170000738
    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: July 1, 2016
    Publication date: January 5, 2017
    Inventors: Rajashree JOSHI-HANGAL, Sanjeev REDKAR
  • Publication number: 20160346310
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: June 6, 2016
    Publication date: December 1, 2016
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Patent number: 9480698
    Abstract: Oligonucleotide analogs are provided that incorporate 5-aza-cytosine in the oligonucleotide sequence, e.g., in the form of 5-aza-2?-deoxycytidine (decitabine) or 5-aza-cytidine. In particular, oligonucleotide analogs rich in decitabine-deoxyguanosine islets (DpG and GpD) are provided to target the CpG islets in the human genome, especially in the promoter regions of genes susceptible to aberrant hypermethylation. Such analogs can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position. Methods for synthesizing these oligonucleotide analogs and for modulating nucleic acid methylation are provided. Also provided are phosphoramidite building blocks for synthesizing the oligonucleotide analogs, methods for synthesizing, formulating and administering these compounds or compositions to treat conditions, such as cancer and hematological disorders.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 1, 2016
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Pasit Phiasivongsa, Sanjeev Redkar