Patents by Inventor Rajashree Joshi-Hangal

Rajashree Joshi-Hangal 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: 20110086112
    Abstract: The present invention relates to pharmaceutical formulations comprising the protein kinase inhibitor, MP470, and methods of using same in treating conditions involving undesirable cell proliferation, such as cancer.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 14, 2011
    Applicant: SUPERGEN, INC.
    Inventors: David J. Bearss, Rajashree Joshi-Hangal, Xiao-Hui Liu, Pasit Phiasivongsa, Sanjeev G. Redkar, Hariprasad Vankayalapati
  • Patent number: 7820684
    Abstract: The present invention relates to pharmaceutical formulations comprising the protein kinase inhibitor, MP470, and methods of using same in treating conditions involving undesirable cell proliferation, such as cancer.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: October 26, 2010
    Assignee: SuperGen, Inc.
    Inventors: David J. Bearss, Rajashree Joshi-Hangal, Xiao-Hui Liu, Pasit Phiasivongsa, Sanjeev G. Redkar, Hariprasad Vankayalapati
  • Publication number: 20080226747
    Abstract: The present invention relates to pharmaceutical formulations comprising the protein kinase inhibitor, MP470, and methods of using same in treating conditions involving undesirable cell proliferation, such as cancer.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 18, 2008
    Applicant: SUPERGEN, INC.
    Inventors: David J. Bearss, Rajashree Joshi-Hangal, Xiao-Hui Liu, Pasit Phiasivongsa, Sanjeev G. Redkar, Hariprasad Vankayalapati
  • Patent number: 7144873
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: December 5, 2006
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Patent number: 7135464
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: November 14, 2006
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Publication number: 20060128653
    Abstract: The present invention provides pharmaceutical formulations of decitabine or 5-aza-2?-deoxycytidine as well as methods of manufacturing the formulations. In particular, decitabine is formulated with a cyclodextrin compound to stabilize and/or enhance solubility of the drug. Kits and methods for using the pharmaceutical formulations are also provided, including methods of administering decitabine to treat conditions or diseases, such as cancer and hematological disorders.
    Type: Application
    Filed: December 10, 2004
    Publication date: June 15, 2006
    Inventors: Chunlin Tang, Rajashree Joshi-Hangal
  • Publication number: 20060128654
    Abstract: The present invention provides pharmaceutical formulations of cytidine analogs and derivatives, such as 5-azacytidine, 5-aza-2?-deoxy-2?,2?-difluorocytidine, 5-aza-2?-deoxy-2?-fluorocytidine, 2?-deoxy-2?,2?-difluorocytidine, and cytosine 1-?-D-arabinofuranoside, as well as methods of manufacturing the formulations. In particular, the cytidine analog or derivative is formulated with a cyclodextrin compound to stabilize and/or enhance solubility of the drug. Kits and methods for using the pharmaceutical formulations are also provided, including methods of administering the cytidine analog or derivative to treat conditions or diseases, such as cancer and hematological disorders.
    Type: Application
    Filed: December 10, 2004
    Publication date: June 15, 2006
    Inventors: Chunlin Tang, Rajashree Joshi-Hangal
  • Publication number: 20060014949
    Abstract: Pharmaceutical compositions and methods for treatment of neoplastic conditions using polymorphs of decitabine are provided. Also provided are methods for manufacturing and administering such pharmaceutical compositions.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 19, 2006
    Applicant: SuperGen Inc.
    Inventors: Sanjeev Redkar, Rajashree Joshi-Hangal
  • Patent number: 6982253
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: January 3, 2006
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Publication number: 20040259820
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 23, 2004
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Publication number: 20040259821
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 23, 2004
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Patent number: 6828346
    Abstract: Methods are provided for using paclitaxel for treating diseases associated with abnormal cell proliferation and angiogenesis. In particular, methods are provided for administration of paclitaxel formulated with vitamin E derivatives such as d-&agr;-tocopherol polyethylene glycol succinate to a cancer patient. By administering to a patient paclitaxel in a vehicle containing a solubilizer other than Cremophor, acute hypersensitivity caused by Cremophor can be avoided and therapeutic index of paclitaxel may also be increased through potentiation of anti-neoplastic effects by the vitamin E derivatives.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 7, 2004
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Howard Sands, Joseph Rubinfeld
  • Publication number: 20040167205
    Abstract: A method is provided for preparing a pharmaceutical composition comprising: taking polyoxyethylated castor oil which if diluted 1:10 in water has a pH greater than 5 and aging the polyoxyethylated castor oil by exposing the polyoxyethylated castor oil to a gas comprising oxygen for a period of time, the exposure to the gas over the period of time causing an acidity of the polyoxyethylated castor oil to increase; and forming a pharmaceutical composition comprising the aged polyoxyethylated castor oil and a pharmaceutically active agent such as paclitaxel; wherein at least 80% of the potency of the pharmaceutically active agent is retained by the pharmaceutical composition after the pharmaceutical composition is stored for at least 7 days at 40° C.
    Type: Application
    Filed: February 18, 2004
    Publication date: August 26, 2004
    Applicant: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Joseph Rubinfeld, Sanjeev Redkar, Ashok Y. Gore
  • Patent number: 6710195
    Abstract: A method is provided for preparing a pharmaceutical composition comprising: taking polyoxyethylated castor oil which if diluted 1:10 in water has a pH greater than 5 and aging the polyoxyethylated castor oil by exposing the polyoxyethylated castor oil to a gas comprising oxygen for a period of time, the exposure to the gas over the period of time causing an acidity of the polyoxyethylated castor oil to increase; and forming a pharmaceutical composition comprising the aged polyoxyethylated castor oil and a pharmaceutically active agent such as paclitaxel; wherein at least 80% of the potency of the pharmaceutically active agent is retained by the pharmaceutical composition after the pharmaceutical composition is stored for at least 7 days at 40° C.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: March 23, 2004
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Joseph Rubinfeld, Sanjeev Redkar, Ashok Y. Gore
  • Publication number: 20030229047
    Abstract: Pharmaceutical formulations, kits and vessels are provided for delivering decitabine to a patient suffering from a disease in need of treatment with decitabine. The pharmaceutical formulation comprises decitabine solvated in a non-aqueous solvent that comprises glycerin, propylene glycol, polyethylene glycol, or combinations. Such formulations are more chemically stable than conventional liquid formulations of decitabine containing more than 40% water in volume. The pharmaceutical formulations can be used for any disease that is sensitive to the treatment with decitabine, such as hematological disorders and cancer.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Inventors: Rajashree Joshi-Hangal, Xichen Zhang, Stephanie Gong, Sanjeev Redkar, Ashok Y. Gore
  • Publication number: 20030191179
    Abstract: Methods are provided for using paclitaxel for treating diseases associated with abnormal cell proliferation and angiogenesis. In particular, methods are provided for administration of paclitaxel formulated with vitamin E derivatives such as d-&agr;-tocopherol polyethylene glycol succinate to a cancer patient. By administering to a patient paclitaxel in a vehicle containing a solubilizer other than Cremophor, acute hypersensitivity caused by Cremophor can be avoided and therapeutic index of paclitaxel may also be increased through potentiation of anti-neoplastic effects by the vitamin E derivatives.
    Type: Application
    Filed: January 23, 2003
    Publication date: October 9, 2003
    Applicant: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Howard Sands, Joseph Rubinfeld
  • Publication number: 20030153614
    Abstract: A method is provided for preparing a pharmaceutical composition comprising: taking polyoxyethylated castor oil which if diluted 1:10 in water has a pH greater than 5 and aging the polyoxyethylated castor oil by exposing the polyoxyethylated castor oil to a gas comprising oxygen for a period of time, the exposure to the gas over the period of time causing an acidity of the polyoxyethylated castor oil to increase; and forming a pharmaceutical composition comprising the aged polyoxyethylated castor oil and a pharmaceutically active agent such as paclitaxel; wherein at least 80% of the potency of the pharmaceutically active agent is retained by the pharmaceutical composition after the pharmaceutical composition is stored for at least 7 days at 40° C.
    Type: Application
    Filed: November 26, 2002
    Publication date: August 14, 2003
    Inventors: Rajashree Joshi-Hangal, Joseph Rubinfeld, Sanjeev Redkar, Ashok Y. Gore
  • Patent number: 6538020
    Abstract: A pharmaceutical formulation is provided for delivering paclitaxel in vivo comprising: paclitaxel, a water-miscible amide and a pharmaceutically-acceptable, water-miscible solubilizer selected from the group consisting of solubilizers having the general structures R1COOR2, R1CONR2, and R1COR2, wherein R1 is a hydrophobic C3-C50 alkane, alkene or alkyne and R2 is a hydrophilic moiety.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: March 25, 2003
    Assignee: Super Gen, Inc.
    Inventors: Rajashree Joshi-Hangal, Ashok Y. Gore, Joseph Rubinfeld, Rajesh Shrotriya
  • Patent number: 6509370
    Abstract: A pharmaceutical formulation is provided for delivering paclitaxel in vivo comprising: water and micelles comprising paclitaxel and a pharmaceutically-acceptable, water-miscible solubilizer forming the micelles, the solubilizer selected from the group consisting of solubilizers having the general structures R1COOR2, R1CONR2, and R1COR2, wherein R1 is a hydrophobic C3-C50 alkane, alkene or alkyne and R2 is a hydrophilic moiety. The solubilizer is selected such that it does not have a pKa less than about 6.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: January 21, 2003
    Assignee: SuperGen, Inc.
    Inventors: Rajashree Joshi-Hangal, Ashok Y. Gore, Joseph Rubinfeld, Rajesh Shrotriya
  • Publication number: 20020103254
    Abstract: A pharmaceutical formulation is provided for delivering paclitaxel in vivo comprising: paclitaxel, a water-miscible amide and a pharmaceutically-acceptable, water-miscible solubilizer selected from the group consisting of solubilizers having the general structures
    Type: Application
    Filed: September 5, 2001
    Publication date: August 1, 2002
    Inventors: Rajashree Joshi-Hangal, Ashok Y. Gore, Joseph Rubinfeld, Rajesh Shrotriya