Patents by Inventor Dasharatha Gauravaram Reddy

Dasharatha Gauravaram Reddy 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: 5958937
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: September 28, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5955467
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: September 21, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5935967
    Abstract: Pharmaceutical formulations of highly lipophilic, poorly water soluble derivatives of Camptothecin are disclosed. The formulations include an effective amount of the HLCD dissolved or suspended in an appropriate amount of N-methyl-2-pyrrolidinone (NMP), and one or more pharmaceutically acceptable excipients.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 10, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5902610
    Abstract: This invention describes novel formulations containing a water soluble disulfide, 2,2'-dithio-bis-ethane sulfonate, with or without cis-diammine dichloro platinum present in the same formulation, wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate is used to reduce the risk or prevent or retard the development of cisplatin induced nephrotoxicity, myelosuppression, and neurotoxicity, and wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate potentiates the antitumor activity of cisplatin when treating human patients with cancer. This invention also teaches novel formulations containing 2,2'-dithio-bis-ethane sulfonate alone or in combination with cisplatin in lyophilized or dissolved in an aqueous formulations which can be administered to patients with cancer who are being treated with cisplatin.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: May 11, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick Herman Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy, Seetharamulu Peddaiahgari
  • Patent number: 5900419
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: May 4, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5880133
    Abstract: Pharmaceutical formulations of Highly Lipophilic Camptothecin Derivatives (HLCD) include HLCD dissolved in N-methyl Pyrrolidinene (NMP). The formulations also include quantities of pharmaceutically acceptable excipients and diluents incorporated thereinto.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: March 9, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5866169
    Abstract: This invention describes novel formulations containing a water soluble disulfide, 2,2'-dithio-bis-ethane sulfonate, with or without cis-diammine dichloro platinum present in the same formulation, wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate is used to reduce the risk or prevent or retard the development of cisplatin induced nephrotoxicity, myelosuppression, and neurotoxicity, and wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate potentiates the antitumor activity of cisplatin when treating human patients with cancer. This invention also teaches novel formulations containing 2,2'-dithio-bis-ethane sulfonate alone or in combination with cisplatin in lyophilized or dissolved in an aqueous formulations which can be administered to patients with cancer who are being treated with cisplatin.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: February 2, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick Herman Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy, Seetharamulu Peddaiahgari
  • Patent number: 5866615
    Abstract: This invention describes novel formulations containing a water soluble disulfide, 2,2'-dithio-bis-ethane sulfonate, with or without cis-diammine dichloro platinum present in the same formulation, wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate is used to reduce the risk or prevent or retard the development of cisplatin induced nephrotoxicity, myelosuppression, and neurotoxicity, and wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate potentiates the antitumor activity of cisplatin when treating human patients with cancer. This invention also teaches novel formulations containing 2,2'-dithio-bis-ethane sulfonate alone or in combination with cisplatin in lyophilized or dissolved in an aqueous formulations which can be administered to patients with cancer who are being treated with cisplatin.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: February 2, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick Herman Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy, Seetharamulu Peddaiahgari
  • Patent number: 5866617
    Abstract: This invention describes novel formulations containing a water soluble disulfide, 2,2'-dithio-bis-ethane sulfonate, with or without cis-diammine dichloro platinum present in the same formulation, wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate is used to reduce the risk or prevent or retard the development of cisplatin induced nephrotoxicity, myelosuppression, and neurotoxicity, and wherein the parenteral or oral administration of 2,2'-dithio-bis-ethane sulfonate potentiates the antitumor activity of cisplatin when treating human patients with cancer. This invention also teaches novel formulations containing 2,2'-dithio-bis-ethane sulfonate alone or in combination with cisplatin in lyophilized or dissolved in an aqueous formulations which can be administered to patients with cancer who are being treated with cisplatin.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: February 2, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick Herman Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy, Seetharamulu Peddaiahgari
  • Patent number: 5859022
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: January 12, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5859023
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: January 12, 1999
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy
  • Patent number: 5789000
    Abstract: This invention describes a novel formulation containing both cis-diammine dichloro platinum and a water soluble disulfide, 2,2'-dithio-bis-ethane sulfonate in the same solution, wherein the presence of the disulfide and the parenteral administration of the formulation reduces the risk of cisplatin induced nephrotoxicity when treating human patients with cancer.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: August 4, 1998
    Assignee: Bionumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy, Peddaiahgari Seetharamulu
  • Patent number: 5726181
    Abstract: A- and/or B-ring substituted camptothecin derivatives, which are poorly water soluble (less than 5 micrograms per milliliter of water), are highly lipophilic camptothecin derivatives (HLCD) and are very active against a variety of human cancers. Because of their very poor water solubility, HLCD have not been used to treat human patients with cancer due to the inability to administer sufficient quantities of the HLCD dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable HLCD formulations for the direct administration of HLCD to human patients with cancer. The claimed invention also describes the methods to create solutions of HLCD and antitumor compositions of HLCD to allow the administration of HLCD in sufficient amounts to treat human patients with various types of cancer.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 10, 1998
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Frederick H. Hausheer, Kochat Haridas, Dhanabalan Murali, Dasharatha Gauravaram Reddy