Patents by Inventor Shanta Chawla

Shanta Chawla 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: 20230330184
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: May 16, 2023
    Publication date: October 19, 2023
    Applicants: Spectrum Pharmaceuticals Inc., Hanmi Pharm Co., Ltd.
    Inventors: Gajanan Bhat, Shanta Chawla, Jae Hyuk Choi, Eun jung Kim, Yu Yon Kim, Gyu Hyan Lee, Hyesun Han
  • Publication number: 20230270822
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: March 10, 2023
    Publication date: August 31, 2023
    Applicant: Spectrum Pharmaceuticals Inc.
    Inventors: Gajanan Bhat, Shanta Chawla, Jae Hyuk Choi, Eun jung Kim, Yu Yon Kim, Gyu Hyan Lee, Hyesun Han
  • Patent number: 11684655
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: June 27, 2023
    Assignees: Spectrum Pharmaceuticals, Inc., Hanmi Pharm Co., Ltd.
    Inventors: Gajanan Bhat, Shanta Chawla, Jae Hyuk Choi, Eun Jung Kim, Yu Yon Kim, Gyu Hyan Lee, Hyesun Han
  • Publication number: 20230027238
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 26, 2023
    Applicant: Spectrum Pharmaceuticals, Inc.
    Inventors: Shanta Chawla, Gajanan Bhat
  • Publication number: 20220153799
    Abstract: This disclosure provides a method of preventing, alleviating, or treating a condition (i.e., neutropenia) in a patient in need thereof, the condition characterized by compromised white blood cell production in the patient. The method includes administering to the patient a therapeutically effective amount of a protein complex comprising a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 19, 2022
    Applicant: Spectrum Pharmaceuticals, Inc.
    Inventors: Gajanan Bhat, Shanta Chawla
  • Patent number: 11267858
    Abstract: This disclosure provides a method of preventing, alleviating, or treating a condition (i.e., neutropenia) in a patient in need thereof, the condition characterized by compromised white blood cell production in the patient. The method includes administering to the patient a therapeutically effective amount of a protein complex comprising a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 8, 2022
    Assignee: Spectrum Pharmaceuticals, Inc.
    Inventors: Gajanan Bhat, Shanta Chawla
  • Publication number: 20140288143
    Abstract: Therapeutic compositions comprising an indoloquinone compound and various bladder cancer treatments and methods are disclosed. More specifically, bladder cancer treatments include the intravesical administration of apaziquone immediately following transurethral resection. Also disclosed are therapeutic compositions comprising an indoloquinone compound and a formulation vehicle. The formulation vehicle improves the solubility and stability of the indoloquinone compound. Additionally, the coating compositions can include coating agents that provide better adhesion of the coating composition to the bladder wall during intravesical delivery of the coating composition.
    Type: Application
    Filed: February 5, 2014
    Publication date: September 25, 2014
    Applicant: Spectrum Pharmaceuticals, Inc.
    Inventors: Bastiaan Nuijen, Ernie Pfadenhauer, Jos H. Beijnen, Luigi Lenaz, Shanta Chawla, Mario Beer
  • Publication number: 20110288472
    Abstract: Therapeutic compositions comprising an indoloquinone compound and various bladder cancer treatments and methods are disclosed. More specifically, bladder cancer treatments include the intravesical administration of apaziquone immediately following transurethral resection. Also disclosed are therapeutic compositions comprising an indoloquinone compound and a formulation vehicle. The formulation vehicle improves the solubility and stability of the indoloquinone compound. Additionally, the coating compositions can include coating agents that provide better adhesion of the coating composition to the bladder wall during intravesical delivery of the coating composition.
    Type: Application
    Filed: April 8, 2011
    Publication date: November 24, 2011
    Inventors: Bastiaan Nuijen, Ernie Pfadenhauer, Jos H. Beijnen, Luigi Lenaz, Shanta Chawla, Mario Beer
  • Publication number: 20080227841
    Abstract: Bladder cancer treatments include the intravesical administration of apaziquone immediately (e.g. within about 6 hours) following transurethral resection.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Inventors: Luigi Lenaz, Shanta Chawla, Mario Beer
  • Publication number: 20060223876
    Abstract: This invention generally relates to Indoloquinone caused tumor radiation therapy sensitization. More specifically, this invention relates to the discovery of indoloquinones as a radiation sensitizer (radiation therapy adjuvant) due to its ability to selectively target hypoxic cells and to damage the DNA of these hypoxic cells. Indoloquinones do so with minimal normal cell and tissue toxicity.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 5, 2006
    Inventors: Randy Burd, Luigi Lenaz, Shanta Chawla, Guru Reddy, Adam Dicker