Patents by Inventor Hema Gursahani

Hema Gursahani 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: 20210401998
    Abstract: The invention provides various methods comprising the administration of a CYP2D6 bioactive drug covalently bound to a water-soluble oligomer. Metabolism of CYP2D6 bioactive drug conjugates is diverted from CYP2D6 to alternative pathways, and the conjugates may therefore be utilized to alleviate the problems associated with interpopulation variation resulting from the genetic polymorphism in the CYP2D6 gene.
    Type: Application
    Filed: May 13, 2021
    Publication date: December 30, 2021
    Inventors: Michael A. Eldon, C. Simone Jude-Fishburn, Hema Gursahani, Myong Gyong Lee
  • Publication number: 20210393513
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchoalveolar lavage followed by assaying residual lung material.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 23, 2021
    Inventors: C. Simone Jude-Fishburn, David Lechuga-Ballesteros, Tacey X. Viegas, Mei-Chang Kuo, Hema Gursahani, Chester Leach, Yuan Song
  • Patent number: 11129794
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchioalveolar lavage followed by assaying residual lung material.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 28, 2021
    Assignee: Nektar Therapeutics
    Inventors: C. Simone Jude-Fishburn, David Lechuga-Ballesteros, Tacey X. Viegas, Mei-Chang Kuo, Hema Gursahani, Chester Leach, Yuan Song
  • Patent number: 11033631
    Abstract: The invention provides various methods comprising the administration of a CYP2D6 bioactive drug covalently bound to a water-soluble oligomer. Metabolism of CYP2D6 bioactive drug conjugates is diverted from CYP2D6 to alternative pathways, and the conjugates may therefore be utilized to alleviate the problems associated with interpopulation variation resulting from the genetic polymorphism in the CYP2D6 gene.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: June 15, 2021
    Assignee: Nektar Therapeutics
    Inventors: Michael A. Eldon, C. Simone Jude-Fishburn, Hema Gursahani, Myong Gyong Lee
  • Patent number: 10525054
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: January 7, 2020
    Assignee: Inheris Biopharma, Inc.
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Publication number: 20190099363
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchioalveolar lavage followed by assaying residual lung material.
    Type: Application
    Filed: June 27, 2018
    Publication date: April 4, 2019
    Inventors: C. Simone Fishburn, David Lechuga-Ballesteros, Tacey X. Viegas, Mei-Chang Kuo, Hema Gursahani, Chester Leach, Yuan Song
  • Publication number: 20180296550
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Application
    Filed: February 9, 2018
    Publication date: October 18, 2018
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Patent number: 9925182
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 27, 2018
    Assignee: Nektar Therapeutics
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Publication number: 20170079975
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 23, 2017
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Patent number: 9457024
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: October 4, 2016
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Publication number: 20160243111
    Abstract: The invention provides opioid agonists covalently bound to a water-soluble oligomer having reduced potential for substance abuse and uses thereof. The compounds of the invention possess altered pharmacokinetic profiles relative to the opioid agonists alone, but are not subject to the risk of physical tampering that allows for the recovery and abuse of the opioid agonist associated with certain alternative delivery formulations.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 25, 2016
    Inventors: C. Simone Jude-Fishburn, Timothy A. Riley, Alberto N. Zacarias, Hema Gursahani
  • Patent number: 9090535
    Abstract: The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits characteristics that are different from the characteristics of the small molecule drug not attached to the water-soluble oligomer.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: July 28, 2015
    Assignee: Nektar Therapeutics
    Inventors: Jennifer Riggs-Sauthier, Bo-Liang Deng, Hema Gursahani
  • Publication number: 20140336214
    Abstract: The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.
    Type: Application
    Filed: November 6, 2012
    Publication date: November 13, 2014
    Inventors: Timothy A. Riley, Juergen W. Pfeiffer, Hema Gursahani
  • Publication number: 20130317114
    Abstract: The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits characteristics that are different from the characteristics of the small molecule drug not attached to the water-soluble oligomer.
    Type: Application
    Filed: December 9, 2011
    Publication date: November 28, 2013
    Applicant: Nektar Therapeutics
    Inventors: Jennifer Riggs-Sauthier, Bo-Liang Deng, Hema Gursahani
  • Publication number: 20130023553
    Abstract: Provided are methods for reducing the addiction potential and/or reducing one or more CNS-side effects related to the administration of an opioid analgesic drug by administering the opioid analgesic drug in the form of an oligomeric polyethylene glycol conjugate compound. The compounds provided demonstrate notably reduced potential for substance abuse, and possess altered pharmacokinetic profiles relative to the opioid agonists alone, but are not subject to the risk of physical tampering that allows for the recovery and abuse of the opioid agonist associated with certain alternative delivery formulations.
    Type: Application
    Filed: January 12, 2011
    Publication date: January 24, 2013
    Applicant: Nektar Therapeutics
    Inventors: C. Simone Jude-Fishburn, Timothy A. Riley, Alberto N. Zacarias, Hema Gursahani
  • Publication number: 20120088745
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchoalveolar lavage followed by assaying residual lung material.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 12, 2012
    Inventors: C. Simone Fishburn, David Lechuga-Ballesteros, Tacey Viegas, Mei-Chang Kuo, Yuan Song, Hema Gursahani, Chester Leach
  • Patent number: 8067431
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchoalveolar lavage followed by assaying residual lung material.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: November 29, 2011
    Assignee: Nektar Therapeutics
    Inventors: C. Simone Fishburn, David Lechuga-Ballesteros, Tacey Viegas, Mei-Chang Kuo, Yuan Song, Hema Gursahani, Chester Leach
  • Publication number: 20110237614
    Abstract: The invention provides opioid agonists covalently bound to a water-soluble oligomer having reduced potential for substance abuse and uses thereof. The compounds of the invention possess altered pharmacokinetic profiles relative to the opioid agonists alone, but are not subject to the risk of physical tampering that allows for the recovery and abuse of the opioid agonist associated with certain alternative delivery formulations.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 29, 2011
    Applicant: Nektar Therapeutics
    Inventors: C. Simone Jude-Fishburn, Timothy A. Riley, Alberto N. Zacarias, Hema Gursahani
  • Publication number: 20110160186
    Abstract: The invention provides various methods comprising the administration of a CYP2D6 bioactive drug covalently bound to a water-soluble oligomer. Metabolism of CYP2D6 bioactive drug conjugates is diverted from CYP2D6 to alternative pathways, and the conjugates may therefore be utilized to alleviate the problems associated with interpopulation variation resulting from the genetic polymorphism in the CYP2D6 gene.
    Type: Application
    Filed: June 9, 2009
    Publication date: June 30, 2011
    Applicant: Nektar Therapeutics
    Inventors: Michael A. Eldon, C. Simone Jude-Fishburn, Hema Gursahani, Myong Gyong Lee
  • Publication number: 20100210676
    Abstract: Methods of modifying the rate of systemic absorption of a drug administered to a subject by a pulmonary route, the method comprising covalently conjugating a hydrophilic polymer to a drug, wherein the drug has a half-life of elimination from the lung of less than about 180 minutes, to form a drug-polymer conjugate, wherein the drug-polymer conjugate has a net hydrophilic character and a weight average molecular weight of from about 50 to about 20,000 Daltons, and wherein the half-life of elimination from the lung of the drug-polymer conjugate is at least about 1.5-fold greater than the half-life of elimination from the lung of the drug, wherein the half-life of elimination from the lung is measured by bronchoalveolar lavage followed by assaying residual lung material.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 19, 2010
    Inventors: C. Simone Fishburn, David Lechuga-Ballesteros, Tacey Viegas, Mei-Chang Kuo, Yuan Song, Hema Gursahani, Chester Leach