Patents by Inventor Serguei A. Tchessalov

Serguei A. Tchessalov 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: 20240041785
    Abstract: The present disclosure provides technologies relating to stabilization of lipid nanoparticle mRNA compositions (e.g., vaccines).
    Type: Application
    Filed: November 14, 2021
    Publication date: February 8, 2024
    Inventors: Steffen Panzner, Christian Reinsch, Kaushik Thanki, Sukrut Somani, Serguei A. Tchessalov, Bakul Subodh Bhatnagar, Ramin Darvari, Sumit Luthra
  • Publication number: 20230414747
    Abstract: The present disclosure relates generally to the field of lipid nanoparticle (LNP) compositions comprising RNA, methods for preparing and storing such compositions, and the use of such compositions in therapy.
    Type: Application
    Filed: November 15, 2021
    Publication date: December 28, 2023
    Inventors: Steffen Panzner, Ugur Sahin, Jorrit-Jan Krijger, Kaushik Thanki, Bakul Subodh Bhatnagar, Ramin Darvari, Sumit Luthra, Serguei A. Tchessalov
  • Publication number: 20230414516
    Abstract: This invention relates to enhanced stabilization and improved lyophilization methods of pharmaceutical substances.
    Type: Application
    Filed: November 15, 2021
    Publication date: December 28, 2023
    Inventors: Bakul Subodh Bhatnagar, Ramin Darvari, Sumit Luthra, Serguei A. Tchessalov, Steffen Panzner, Christian Reinsch, Kaushik Thanki, Sukrut Somani
  • Patent number: 11020459
    Abstract: A Factor VIII (FVIII) composition formulated such that NaCl is not present in the final formulation or is present in trace amounts, which allows for a concomitant reduction in the lyophilization cycle time and increased stability of the lyophilized FVIII.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: June 1, 2021
    Assignees: Baxalta Incorporated, Baxalta GmbH, University of Connecticut
    Inventors: Michael Pikal, Serguei Tchessalov, Erik Bjornson, Feroz Jameel, Marc Besman
  • Publication number: 20200078447
    Abstract: A Factor VIII (FVIII) composition formulated such that NaCl is not present in the final formulation or is present in trace amounts, which allows for a concomitant reduction in the lyophilization cycle time and increased stability of the lyophilized FVIII.
    Type: Application
    Filed: August 21, 2019
    Publication date: March 12, 2020
    Inventors: Michael Pikal, Serguei Tchessalov, Erik Bjornson, Feroz Jameel, Marc Besman
  • Patent number: 10512674
    Abstract: A Factor VIII (FVIII) composition formulated such that NaCl is not present in the final formulation or is present in trace amounts, which allows for a concomitant reduction in the lyophilization cycle time and increased stability of the lyophilized FVIII.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: December 24, 2019
    Inventors: Michael Pikal, Serguei Tchessalov, Erik Bjornson, Feroz Jameel, Marc Besman
  • Patent number: 9884019
    Abstract: The present invention provides methods of lyophilizing a pharmaceutical substance involving a primary drying step executed at a product temperature at or above the collapse temperature. The invention also provides pharmaceutical substances lyophilized at or above the collapse temperature.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: February 6, 2018
    Assignee: Wyeth LLC
    Inventors: Serguei Tchessalov, Dan Dixon, Nicholas Warne
  • Patent number: 9669076
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 6, 2017
    Assignees: Baxalta Incorporated, Baxalta GmbH, University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Publication number: 20170087218
    Abstract: A Factor VIII (FVIII) composition formulated such that NaCl is not present in the final formulation or is present in trace amounts, which allows for a concomitant reduction in the lyophilization cycle time and increased stability of the lyophilized FVIII.
    Type: Application
    Filed: May 3, 2016
    Publication date: March 30, 2017
    Inventors: Michael Pikal, Serguei Tchessalov, Erik Bjornson, Feroz Jameel, Marc Besman
  • Publication number: 20170000854
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Application
    Filed: May 4, 2016
    Publication date: January 5, 2017
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Patent number: 9352027
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: May 31, 2016
    Assignees: Baxalta Incorporated, Baxalta GmbH, University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Publication number: 20150025010
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Application
    Filed: May 23, 2014
    Publication date: January 22, 2015
    Applicant: University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Patent number: 8765665
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: July 1, 2014
    Assignees: Baxter International Inc., University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Patent number: 8372800
    Abstract: An albumin-free Factor VIII formulation comprising: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent. In a further embodiment, the formulation can comprise: 300 mM to 500 mM NaCl; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; and a buffering agent.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 12, 2013
    Assignees: Baxter International Inc., University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Publication number: 20120114646
    Abstract: The present invention provides, among other things, stable formulations for small modular immunopharmaceutical (SMIP™) proteins. In some embodiments, the present invention provides a formulation containing a lyophilized mixture of a small modular immunopharmaceutical protein, wherein less than 7% of the lyophilized small modular immunopharmaceutical protein exists in aggregated form. Formulations according to the invention may contain buffering agents, stabilizers, bulking agents, surfactants and/or other excipients. The present invention also provides formulations for lyophilization, reconstitution and methods of use thereof.
    Type: Application
    Filed: June 18, 2010
    Publication date: May 10, 2012
    Applicant: WYETH LLC
    Inventors: Serguei Tchessalov, Angela Kantor, Li Li, Nicholas Luksha, Nicholas Warne
  • Publication number: 20120083446
    Abstract: An albumin-free Factor VIII formulation comprising, 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent. In a further embodiment, the formulation can comprise: 300 mM to 500 mM NaCl; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; and a buffering agent.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicants: University of Connecticut, Baxter International Inc.
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Patent number: 8058226
    Abstract: A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: November 15, 2011
    Assignees: Baxter International Inc., University of Connecticut
    Inventors: Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
  • Publication number: 20100168018
    Abstract: A Factor VIII (FVIII) composition formulated such that NaCl is not present in the final formulation or is present in trace amounts, which allows for a concomitant reduction in the lyophilization cycle time and increased stability of the lyophilized FVIII.
    Type: Application
    Filed: November 6, 2009
    Publication date: July 1, 2010
    Applicants: BAXTER INTERNATIONAL INC., UNIVERSITY OF CONNECTICUT
    Inventors: Michael Pikal, Serguei Tchessalov, Erik Bjornson, Feroz Jameel, Marc Besman
  • Publication number: 20100041870
    Abstract: The present invention provides methods of lyophilizing a pharmaceutical substance involving a primary drying step executed at a product temperature at or above the collapse temperature. The invention also provides pharmaceutical substances lyophilized at or above the collapse temperature.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 18, 2010
    Applicant: Wyeth
    Inventors: Serguei Tchessalov, Dan Dixon, Nicholas Warne
  • Publication number: 20090324586
    Abstract: The present invention provides methods for assessing and optimizing lyophilization cycle robustness. In particular, the present invention provides rapid assessment of cycle robustness with respect to a variety of lyophilization process deviations by varying a relatively small number of parameters.
    Type: Application
    Filed: June 25, 2009
    Publication date: December 31, 2009
    Applicant: Wyeth
    Inventors: Serguei Tchessalov, Daniel Dixon, Anthony Barry, Nicholas Warne