Patents Assigned to Endocyte, Inc.
  • Patent number: 11850262
    Abstract: The present disclosure relates to methods of treating a patient with a cancer by administering to the patient a composition comprising CAR T cells and a small molecule linked to a targeting moiety by a linker. The disclosure also relates to compositions for use in such methods.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: December 26, 2023
    Assignees: Purdue Research Foundation, Endocyte, Inc.
    Inventors: Philip Stewart Low, Haiyan Chu, Yong Gu Lee, Yingjuan J. Lu, Christopher Paul Leamon, Leroy W. Wheeler, II
  • Patent number: 11779602
    Abstract: The present disclosure relates to methods of treating a patient with a cancer by administering to the patient a composition comprising CAR T cells wherein the CAR T cells comprise a CAR and the CAR comprises an E2 anti-fluorescein antibody fragment, and administering to the patient a small molecule linked to a targeting moiety by a linker. The disclosure also relates to compositions for use in such methods.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: October 10, 2023
    Assignees: Endocyte, Inc., Purdue Research Foundation, Seattle Children's Hospital
    Inventors: Philip Stewart Low, Haiyan Chu, Yingjuan June Lu, Christopher Paul Leamon, Leroy W. Wheeler, II, Michael C. Jensen, James Matthaei
  • Patent number: 11759480
    Abstract: The present disclosure relates to methods of treating a patient with a cancer by administering to the patient a composition comprising CAR T cells and a small molecule linked to a targeting moiety by a linker. The disclosure also relates to compositions for use in such methods.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: September 19, 2023
    Assignees: ENDOCYTE, INC., PURDUE RESEARCH FOUNDATION
    Inventors: Philip Stewart Low, Haiyan Chu, Yong Gu Lee, Yingjuan J. Lu, Christopher Paul Leamon, Leroy W Wheeler, II
  • Patent number: 11219622
    Abstract: Conjugates of antifolates, releasable linkers, and drugs, and pharmaceutical compositions containing them are described. The conjugates are useful for treating diseases arising from pathogenic cell populations. Methods for treating such diseases are also described.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: January 11, 2022
    Assignees: Endocyte, Inc., Purdue Research Foundation
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Philip Stewart Low
  • Patent number: 10912840
    Abstract: The invention described herein pertains to the diagnosis, imaging, and/or treatment of pathogenic cell populations. In particular, the invention described herein pertains to the diagnosis, imaging, and/or treatment of diseases caused by PSMA expressing cells, such as prostate cancer cells, using compounds capable of targeting PSMA expressing cells.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 9, 2021
    Assignee: ENDOCYTE, INC.
    Inventors: Iontcho Radoslavov Vlahov, Joseph Anand Reddy, Alicia Bloomfield, Ryan Dorton, Melissa Nelson, Marilynn Vetzel, Christopher Paul Leamon
  • Patent number: 10898596
    Abstract: The invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using radionuclide-based imaging. In particular, the invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using positron emission tomography.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 26, 2021
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Hari Krishna R. Santhapuram
  • Patent number: 10857234
    Abstract: The present disclosure relates to compositions and methods of carbonic anhydrase IX inhibitors. The present disclosure also relates to targeting conjugates of carbonic anhydrase IX inhibitors as therapeutics and imaging agents. The present disclosure also relates to the use of targeting conjugates of carbonic anhydrase IX inhibitors in imaging methods and cancer therapy.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: December 8, 2020
    Assignee: Endocyte Inc.
    Inventors: Christopher P. Leamon, Iontcho R. Vlahov, Jonathan M. Shillingford, Paul J. Kleindl
  • Patent number: 10738086
    Abstract: Described herein are compositions and methods for use in targeted drug delivery using cell-surface receptor binding drug delivery conjugates containing hydrophilic spacer linkers for use in treating disease states caused by pathogenic cell populations.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: August 11, 2020
    Assignee: Endocyte Inc.
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Hari Krishna R. Santhapuram, Paul Joseph Kleindl, Kevin Yu Wang, Fei You
  • Publication number: 20200147072
    Abstract: Conjugates of antifolates, releasable linkers, and drugs, and pharmaceutical compositions containing them are described. The conjugates are useful for treating diseases arising from pathogenic cell populations. Methods for treating such diseases are also described.
    Type: Application
    Filed: June 13, 2019
    Publication date: May 14, 2020
    Applicants: Purdue Research Foundation, Endocyte, Inc.
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Philip Stewart Low
  • Patent number: 10647676
    Abstract: This invention pertains to bivalent linkers, and the synthesis and use thereof. In particular, this invention pertains to the synthesis and use of bivalent linkers in preparing vitamin, drug, diagnostic agent, and/or imaging agent conjugates. The present invention includes divalent linkers, which are alternatively referred to as bivalent linkers, that may be used to couple, link, bond, attach, or otherwise associate two or more chemical entities. This coupling, linking, attachment, or association may be used in the formation of conjugates of such chemical entities. Those chemical entities include targeting ligands and receptor-binding ligands, such as vitamins. Those chemical entities also include drugs for treating various diseases or disease states, and imaging and diagnostic agents for diagnosing, detecting, or otherwise monitoring various diseases or disease states.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 12, 2020
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Apparao Satyam, Stephen J. Howard
  • Patent number: 10624972
    Abstract: The present disclosure relates to pyrrolobenzodiazepine (PBD) prodrugs and conjugates thereof. The present disclosure also relates to pharmaceutical compositions of the conjugates described herein, methods of making and methods of using the same.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 21, 2020
    Assignee: Endocyte, Inc.
    Inventors: Iontcho Radoslavov Vlahov, Christopher Paul Leamon, Longwu Qi, Yingcai Wang, Kevin Yu Wang, Ning Zou, Albert E. Felten
  • Patent number: 10500204
    Abstract: Described herein are compositions, methods, compounds, conjugates, and kits for use in targeted drug delivery using drug delivery conjugates containing hydrophilic spacer linkers for use in treating disease states caused by pathogenic cell populations, such as inflammatory cells.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 10, 2019
    Assignee: Endocyte, Inc.
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Yingjuan June Lu, Kevin Yu Wang, Fei You, Paul Joseph Kleindl, Hari Krishna R. Santhapuram
  • Patent number: 10500286
    Abstract: The disclosure provided herein pertains to CCK2R-drug conjugates. In particular, the disclosure pertains to CCK2R-drug conjugates that target the delivery of drugs to a mammalian recipient. Also described are methods of making and using CCK2R-drug conjugates.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 10, 2019
    Assignee: Endocyte, Inc.
    Inventors: Garth L. Parham, Melissa Nelson, Marilynn Vetzel, Christina M. Dircksen, Joseph Anand Reddy, Christopher Paul Leamon, Iontcho Radoslavov Vlahov
  • Patent number: 10420850
    Abstract: The present disclosure relates to a method for imaging cancer by administering to a patient a labeled chelating compound and an unlabeled chelating compound.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: September 24, 2019
    Assignee: Endocyte, Inc.
    Inventor: Christopher Paul Leamon
  • Patent number: 10363250
    Abstract: Conjugates of antifolates, releasable linkers, and drugs, and pharmaceutical compositions containing them are described. The conjugates are useful for treating diseases arising from pathogenic cell populations. Methods for treating stroll diseases are also described.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 30, 2019
    Assignees: Endocyte, Inc., Purdue Research Foundation
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Philip Stewart Low
  • Publication number: 20190083631
    Abstract: The present disclosure relates to compositions and methods of carbonic anhydrase IX inhibitors. The present disclosure also relates to targeting conjugates of carbonic anhydrase IX inhibitors as therapeutics and imaging agents. The present disclosure also relates to the use of targeting conjugates of carbonic anhydrase IX inhibitors in imaging methods and cancer therapy.
    Type: Application
    Filed: March 16, 2017
    Publication date: March 21, 2019
    Applicant: Endocyte, Inc.
    Inventors: Christopher P. LEAMON, Iontcho R. VLAHOV, Jonathan M. SHILLINGFORD, Paul J. KLEINDL
  • Patent number: 10188759
    Abstract: The invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using radionuclide-based imaging. In particular, the invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using positron emission tomography.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: January 29, 2019
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Hari Krishna R. Santhapuram
  • Patent number: 10010618
    Abstract: Described are methods, uses, and kits for utilizing a targeted ligand conjugate in combination with a thiol inhibitor or a system xc? inhibitor for the treatment of cancer or inflammation. Also described are in vitro assays utilizing a targeted ligand conjugate in combination with a thiol inhibitor or a system xc? inhibitor.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 3, 2018
    Assignee: Endocyte, Inc.
    Inventors: Nikki L. Parker, Christopher P. Leamon, Iontcho R. Vlahov
  • Patent number: 9877965
    Abstract: Described herein are compositions, methods, compounds, conjugates, and kits for use in targeted drug delivery using drug delivery conjugates containing hydrophilic spacer linkers for use in treating disease states caused by pathogenic cell populations, such as inflammatory cells.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 30, 2018
    Assignee: Endocyte, Inc.
    Inventors: Christopher Paul Leamon, Iontcho Radoslavov Vlahov, Yingjuan June Lu, Kevin Yu Wang, Fei Yu, Paul Joseph Kleindl, Hari Krishna R. Santhapuram
  • Patent number: 9782493
    Abstract: The invention described herein pertains to the diagnosis, imaging, and/or treatment of pathogenic cell populations. In particular, the invention described herein pertains to the diagnosis, imaging, and/or treatment of diseases caused by PSMA expressing cells, such as prostate cancer cells, using compounds capable of targeting PSMA expressing cells.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: October 10, 2017
    Assignee: ENDOCYTE, INC.
    Inventors: Iontcho Radoslavov Vlahov, Joseph Anand Reddy, Alicia Bloomfield, Ryan Dorton, Melissa Nelson, Marilynn Vetzel, Christopher Paul Leamon