Patents by Inventor Daryl C. Drummond

Daryl C. Drummond 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: 20230416236
    Abstract: Novel compounds inhibiting ATR protein kinase include compounds of formula (I) disclosed herein, as well as liposome formulations comprising ATR protein kinase inhibitor compounds. The compositions are useful for the treatment of cancer.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 28, 2023
    Inventors: Daryl C. DRUMMOND, Bolin GENG, Dmitri B. KIRPOTIN, Suresh K. TIPPARAJU, Alexander KOSHKARYEV, Ozan ALKAN
  • Patent number: 11844795
    Abstract: Combination therapies for treating cancer comprising administration of a topoisomerase-1 inhibitor and a PARP inhibitor are provided. The topoisomerase-1 inhibitor can be delivered as a liposomal formulation that provides for prolonged accumulation of the topoisomerase-1 inhibitor within a tumor relative to outside of the tumor. Therapeutic benefit can thereby be obtained by delaying the administration of the PARP inhibitor after each administration of a liposomal irinotecan formulation until the accumulation of the topoisomerase inhibitor in the tumor is sufficiently greater than outside the tumor to result in increased efficacy of the PARP inhibitor and topoisomerase inhibitor within the tumor, while reducing the peripheral toxicity of the combination therapy. The therapies disclosed herein are useful in the treatment of human cancers with solid tumors, including cervical cancer.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: December 19, 2023
    Inventors: Sarah F. Blanchette, Daryl C. Drummond, Jonathan Basil Fitzgerald, Victor Moyo
  • Publication number: 20230381303
    Abstract: The present disclosure provides for improved compositions of ionizable lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Anionic phospholipids, including phosphatidylserine and phosphatidylglycerol are included in the lipid nanoparticles to increase the transfection efficiency in human dendritic cells. The further incorporation of mono-unsaturated alkyl chain analogs in dimethylaminopropyl-dioxolane or heterocyclic ketal ionizable lipids in the formulation demonstrated high levels of transfection in human dendritic cells, compared to other ionizable lipids in the same family, and demonstrated good stability to oxidative damage. Finally, the use of an ammonium salt of phosphatidylserine allows for the efficient production of PS-targeted LNPs.
    Type: Application
    Filed: May 25, 2023
    Publication date: November 30, 2023
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark E. Hayes, Alexander Koshkaryev, Ross B. Fulton
  • Publication number: 20230348447
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Application
    Filed: December 13, 2022
    Publication date: November 2, 2023
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Patent number: 11787781
    Abstract: Novel compounds inhibiting ATR protein kinase include compounds of formula (I) disclosed herein, as well as liposome formulations comprising ATR protein kinase inhibitor compounds. The compositions are useful for the treatment of cancer.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: October 17, 2023
    Assignee: CELATOR PHARMACEUTICALS, INC.
    Inventors: Daryl C. Drummond, Bolin Geng, Dmitri B. Kirpotin, Suresh K. Tipparaju, Alexander Koshkaryev, Ozan Alkan
  • Publication number: 20230219941
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Application
    Filed: June 18, 2021
    Publication date: July 13, 2023
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Publication number: 20230181567
    Abstract: The present invention provides liposome compositions containing substituted ammonium and/or polyanion, and optionally with a desired therapeutic or imaging entity. The present invention also provide methods of making the liposome compositions provided by the present invention.
    Type: Application
    Filed: November 17, 2022
    Publication date: June 15, 2023
    Applicant: Ipsen Biopharm Ltd.
    Inventors: Keelung Hong, Daryl C. Drummond, Dmitri B. Kirpotin
  • Publication number: 20230126953
    Abstract: The present disclosure provides compounds useful as ionizable cationic lipids. The ionizable cationic lipids are useful for preparing lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids were engineered with improved stability to oxidative degradation while in storage.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 27, 2023
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark E. Hayes
  • Publication number: 20230126415
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Application
    Filed: December 1, 2022
    Publication date: April 27, 2023
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Publication number: 20230108934
    Abstract: Irinotecan phospholipid liposomes with improved storage stability are provided, with related methods of treatment and manufacture. The irinotecan liposomes can have reduced formation of lyso-phosphatidylcholine (lyso-PC) during storage, and prior to administration to a patient.
    Type: Application
    Filed: August 31, 2022
    Publication date: April 6, 2023
    Applicant: Ipsen Biopharm Ltd.
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark Eamon Hayes, Charles Noble, Kevin Kesper, Antoine M. Awad, Douglas J. Moore, Andrew J. O'Brien
  • Publication number: 20230074866
    Abstract: Combination therapies for treating cancer comprising administration of a topoisomerase-1 inhibitor and a PARP inhibitor are provided. The topoisomerase-1 inhibitor can be delivered as a liposomal formulation that provides for prolonged accumulation of the topoisomerase-1 inhibitor within a tumor relative to outside of the tumor. Therapeutic benefit can thereby be obtained by delaying the administration of the PARP inhibitor after each administration of a liposomal irinotecan formulation until the accumulation of the topoisomerase inhibitor in the tumor is sufficiently greater than outside the tumor to result in increased efficacy of the PARP inhibitor and topoisomerase inhibitor within the tumor, while reducing the peripheral toxicity of the combination therapy. The therapies disclosed herein are useful in the treatment of human cancers with solid tumors, including cervical cancer.
    Type: Application
    Filed: March 24, 2022
    Publication date: March 9, 2023
    Applicant: Ipsen Biopharm Ltd.
    Inventors: Sarah F. Blanchette, Daryl C. Drummond, Jonathan Basil Fitzgerald, Victor Moyo
  • Patent number: 11591544
    Abstract: The present disclosure provides compounds useful as ionizable cationic lipids. The ionizable cationic lipids are useful for preparing lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids were engineered with improved stability to oxidative degradation while in storage.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: February 28, 2023
    Assignee: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark E. Hayes
  • Patent number: 11566023
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: January 31, 2023
    Assignee: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Patent number: 11555033
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: January 17, 2023
    Assignee: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Publication number: 20220411394
    Abstract: The present disclosure provides for improved compositions of ionizable lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids are engineered with improved stability to oxidative degradation while in storage, while retaining high transfection activity or potency in cells. These lipids are designed to be biodegradable, thus improving the tolerability of nanoparticles formed with them in vivo. In addition, targeting of these nanoparticles in a highly specific manner to dendritic cells is provided for through inclusion of antibody conjugates directed against cell surface receptors.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 29, 2022
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark E. Hayes, Alexander Koshkaryev, Ross B. Fulton
  • Publication number: 20220274975
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Application
    Filed: May 6, 2022
    Publication date: September 1, 2022
    Applicant: Akagera Medicines, Inc.
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Publication number: 20220162521
    Abstract: The present disclosure provides compounds useful as ionizable cationic lipids. The ionizable cationic lipids are useful for preparing lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids were engineered with improved stability to oxidative degradation while in storage.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark E. Hayes
  • Publication number: 20210403463
    Abstract: Compositions and methods for the treatment of tuberculosis, as well as other mycobacterial and gram positive bacterial infections are disclosed. These compositions contain a highly potent and selective oxazolidinone encapsulated with high efficiency to maximize dosing potential of low toxicity drugs, and are stable in the presence of plasma. The compositions are long circulating and retain their encapsulated drug while in the circulation following intravenous dosing to allow for efficient accumulation at the site of the bacterial or mycobacterial infection. The high doses that can be achieved when combined with the long circulating properties and highly stable retention of the drug allow for a reduced frequency of administration when compared to daily or twice daily administrations of other drugs typically utilized to treat these infections.
    Type: Application
    Filed: June 18, 2021
    Publication date: December 30, 2021
    Inventors: Daryl C. Drummond, Suresh K. Tipparaju, Charles O. Noble, Alexander Koshkaryev, Dmitri B. Kirpotin
  • Publication number: 20210300905
    Abstract: Novel compounds inhibiting ATR protein kinase include compounds of formula (I) disclosed herein, as well as liposome formulations comprising ATR protein kinase inhibitor compounds. The compositions are useful for the treatment of cancer.
    Type: Application
    Filed: May 7, 2021
    Publication date: September 30, 2021
    Inventors: Daryl C. DRUMMOND, Bolin GENG, Dmitri B. KIRPOTIN, Suresh K. TIPPARAJU, Alexander KOSHKARYEV, Ozan ALKAN
  • Publication number: 20210228567
    Abstract: Irinotecan phospholipid liposomes with improved storage stability are provided, with related methods of treatment and manufacture. The irinotecan liposomes can have reduced formation of lyso-phosphatidylcholine (lyso-PC) during storage, and prior to administration to a patient.
    Type: Application
    Filed: September 3, 2020
    Publication date: July 29, 2021
    Inventors: Daryl C. Drummond, Dmitri B. Kirpotin, Mark Eamon Hayes, Charles Noble, Kevin Kesper, Antoine M. Awad, Douglas J. Moore, Andrew J. O'Brien