Patents Assigned to Durect Corporation
  • Patent number: 12226423
    Abstract: Compositions comprising 5-cholesten-3, 25-diol, 3-sulfate (25HC3S) or pharmaceutically acceptable salt thereof and at least one cyclic oligosaccharide, e.g., a cyclodextrin (CD), are provided. The compositions may be used to prevent and/or treat a variety of diseases and conditions, including organ failure (e.g. acute liver failure), high cholesterol/high lipids, and various inflammatory diseases and conditions.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: February 18, 2025
    Assignees: Virginia Commonwealth University, Durect Corporation, The United States Government as Represented by The Department of Veterans Affairs
    Inventors: Shunlin Ren, Leyuan Xu, Yanxia Ning, Jin Koung Kim, WeiQi Lin, Andrew R. Miksztal, Hongwei Wu, Min L. Lee
  • Publication number: 20240293307
    Abstract: A composition includes a salt; a polymer; and an antioxidant. A dispenser includes a flexible container having a closed end and an opposed open end; an osmotically-effective solute composition encapsulating at least a portion of the container, the solute composition including antioxidant in an amount of at least 0.5 wt %, based on weight of the solute composition; a semipermeable membrane encapsulating the osmotically-effective solute composition; a cap having a sealing surface adapted for sealing engagement with the open end of the container; and a port extending from an interior of the container and through the cap. Also disclosed are methods of making and using the composition and osmotic pumps.
    Type: Application
    Filed: February 9, 2024
    Publication date: September 5, 2024
    Applicant: Durect Corporation
    Inventors: Xiaoping Song, Clarisa Peer, Su Il Yum
  • Patent number: 11771624
    Abstract: The present disclosure relates to sustained release drug delivery systems. In some cases, a composition comprises an active pharmaceutical agent; at least one of sucrose acetate isobutyrate and a polyorthoester; an organic solvent; and 2,6-dimethylaniline, wherein the 2,6-dimethylaniline is present at a level less than 500 ppm. In some cases, a composition comprises N-oxide of active pharmaceutical agent at a level less than 1 wt %, based on weight of the composition. In some case, a composition comprises metal present at a level less than 5 ppm. Dosage forms and methods are also provided.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: October 3, 2023
    Assignee: DURECT CORPORATION
    Inventors: Andrew R. Miksztal, Judy Joice, Susan Autio, Mark P. Davis
  • Publication number: 20230146925
    Abstract: Disclosed are formulations and related methods that comprise a non-polymeric, non-water soluble high viscosity liquid carrier material having a viscosity of at least 5,000 cP at 37° C. that does not crystallize neat under ambient or physiological conditions; a specified linear polymer comprising lactide repeat units; and one or more solvents that have a solvent capacity.
    Type: Application
    Filed: January 4, 2023
    Publication date: May 11, 2023
    Applicant: DURECT CORPORATION
    Inventors: Jeremy C. WRIGHT, Felix THEEUWES, John W. GIBSON, Keith E. BRANHAM, Stefania SJOBECK
  • Patent number: 11612609
    Abstract: Methods of preventing and/or treating ischemia, organ dysfunction and/or organ failure, including multiple organ dysfunction syndrome (MODS), and necrosis and apoptosis associated with organ dysfunction/failure, are provided. For instance, the methods involve contacting organ(s) with an oxygenated cholesterol sulfate (OCS), e.g. 5-cholesten-3,25-diol, 3-sulfate (25H-C3S). The organ(s) may be in vivo (e.g. in a patient that is treated with the OCS) or ex vivo (e.g. an organ that has been harvested from a donor and is to be transplanted).
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: March 28, 2023
    Assignees: Durect Corporation, Virginia Commonwealth University
    Inventors: Shunlin Ren, Felix Theeuwes, James E. Brown, WeiQi Lin
  • Patent number: 11529420
    Abstract: The present disclosure generally provides complexes including a pharmaceutically active agent and a functionalized polymer, wherein the functionalized polymer includes repeat units, the repeat units including ionizable repeat units having at least one ionizable side group and/or ionizable end group, a plurality of the at least one ionizable groups forming non-covalent bonds with the pharmaceutically active agent. Polymers which may be used to form such complexes as well as methods of making and using the complexes and related compositions are also provided.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: December 20, 2022
    Assignee: DURECT CORPORATION
    Inventors: Michael Sekar, Felix Theeuwes, Keith Edward Branham, John W Gibson, James Matriano, Whitney Moro, John Tipton, William Van Osdol, Su Il Yum
  • Publication number: 20220280646
    Abstract: Compositions may include a pharmaceutical active agent, a high viscosity liquid carrier material (HVLCM), a lactic acid-based polymer, and an organic solvent. Related compositions and methods are also disclosed. For instance, a carrier formulation for controlled release of injectable drugs is disclosed. The formulation may include a non-water soluble high viscosity liquid which may be sucrose acetate isobutyrate, a lactic-acid based polymer which may be a poly(lactic acid)(glycolic acid), and an organic solvent which maintains the composition in a monophasic form at 25° C. in one atmosphere. Drug in the formulation may be released upon administration such that less than 10% (e.g. 2-8%) of drug is released in the first 5 hours; 10% to 80% of the drug is released during a period of 5 hours to 7 days after administration; and 10% to 40% of the drug is released gradually over a period of 7 days to 28 days from initial administration. The drug may be an anti-schizophrenia agent delivered by injection.
    Type: Application
    Filed: February 14, 2022
    Publication date: September 8, 2022
    Applicant: DURECT CORPORATION
    Inventors: Jeremy C. WRIGHT, Wilma TAMRAZ, John J. LEONARD, John W. GIBSON, Keith E. BRANHAM, Stefania SJOBECK, Brooks Boyd, Christopher M. RUBINO
  • Publication number: 20220265830
    Abstract: The present disclosure provides long-acting formulations and vehicles, methods of making the same and methods of using the same.
    Type: Application
    Filed: July 17, 2020
    Publication date: August 25, 2022
    Applicant: DURECT CORPORATION
    Inventors: Susan AUTIO, Keith Edward BRANHAM, James A. FILICE, John W. GIBSON, John J. LEONARD, James MATRIANO, Whitney MORO, Michael SEKAR, Chelsea Alexandra SNYDER, Robert G. STRICKLEY, Raju SUBRAMANIAN, Felix THEEUWES, Monica TIJERINA, Jeremy C. WRIGHT, Su II YUM, Faye XU
  • Patent number: 11406646
    Abstract: Compositions comprising 5-cholesten-3,25-diol, 3-sulfate (25HC3S) or pharmaceutically acceptable salt thereof and at least one cyclic oligosaccharide, e.g., a cyclodextrin (CD), are provided. The compositions may be used to prevent and/or treat a variety of diseases and conditions, including organ failure (e.g. acute liver failure), high cholesterol/high lipids, and various inflammatory diseases and conditions.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: August 9, 2022
    Assignees: Virginia Commonwealth University, Durect Corporation, The United States Government as Represented by The Department of Veterans Affairs
    Inventors: Shunlin Ren, Leyuan Xu, Yanxia Ning, Jin Koung Kim, WeiQi Lin, Andrew R. Miksztal, Hongwei Wu, Min L. Lee
  • Patent number: 11400019
    Abstract: The present disclosure relates to sustained release drug delivery systems. In some cases, a composition comprises an active pharmaceutical agent; at least one of sucrose acetate isobutyrate and a polyorthoester; an organic solvent; and 2,6-dimethylaniline, wherein the 2,6-dimethylaniline is present at a level less than 500 ppm. In some cases, a composition comprises N-oxide of active pharmaceutical agent at a level less than 1 wt %, based on weight of the composition. In some case, a composition comprises metal present at a level less than 5 ppm. Dosage forms and methods are also provided.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: August 2, 2022
    Assignee: DURECT CORPORATION
    Inventors: Andrew R. Miksztal, Judy Joice, Susan Autio, Mark P. Davis
  • Patent number: 11285217
    Abstract: Compositions may include a pharmaceutical active agent, a high viscosity liquid carrier material (HVLCM), a lactic acid-based polymer, and an organic solvent. Related compositions and methods are also disclosed. For instance, a carrier formulation for controlled release of injectable drugs is disclosed. The formulation may include a non-water soluble high viscosity liquid which may be sucrose acetate isobutyrate, a lactic-acid based polymer which may be a poly(lactic acid)(glycolic acid), and an organic solvent which maintains the composition in a monophasic form at 25° C. in one atmosphere. Drug in the formulation may be released upon administration such that less than 10% (e.g. 2-8%) of drug is released in the first 5 hours; 10% to 80% of the drug is released during a period of 5 hours to 7 days after administration; and 10% to 40% of the drug is released gradually over a period of 7 days to 28 days from initial administration. The drug may be an anti-schizophrenia agent delivered by injection.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: March 29, 2022
    Assignee: Durect Corporation
    Inventors: Jeremy C. Wright, Wilma Tamraz, John J. Leonard, John W. Gibson, Keith E. Branham, Stefania Sjobeck, Brooks Boyd, Christopher M. Rubino
  • Patent number: 11179326
    Abstract: Methods and compositions for systemically or locally administering by implantation a beneficial agent to a subject are described, and include, for example, depot gel compositions that can be injected into a desired location and which can provide controlled release of a beneficial agent over a short duration of time. The compositions include a low molecular weight biocompatible polymer, a biocompatible solvent having low water miscibility that forms a viscous gel with the polymer and limits water uptake by the implant, and a beneficial agent.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 23, 2021
    Assignee: Durect Corporation
    Inventors: Guohua Chen, David T. Priebe
  • Publication number: 20210330582
    Abstract: A composition includes a salt; a polymer; and an antioxidant. A dispenser includes a flexible container having a closed end and an opposed open end; an osmotically-effective solute composition encapsulating at least a portion of the container, the solute composition including antioxidant in an amount of at least 0.5 wt %, based on weight of the solute composition; a semipermeable membrane encapsulating the osmotically-effective solute composition; a cap having a sealing surface adapted for sealing engagement with the open end of the container; and a port extending from an interior of the container and through the cap. Also disclosed are methods of making and using the composition and osmotic pumps.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 28, 2021
    Applicant: Durect Corporation
    Inventors: Xiaoping Song, Clarisa Peer, Su Il Yum
  • Publication number: 20210322517
    Abstract: The present disclosure provides a biodegradable drug delivery composition including a vehicle and an insoluble component comprising beneficial agent dispersed in the vehicle. In some cases, the composition includes sucrose acetate isobutyrate, biodegradable polymer, hydrophobic solvent, and a complex comprising a counterion and beneficial agent, such as protein, peptide, nucleic acid, or small molecular weight compound. Also provided, are kits including the biodegradable drug delivery composition or components thereof, as well as methods of making and using the biodegradable drug delivery composition.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 21, 2021
    Applicant: DURECT CORPORATION
    Inventors: William Van Osdol, Su Il Yum, Felix Theeuwes, Michael Sekar, John W Gibson, Keith Edward Branham, Huey-Ching L. Su
  • Patent number: 11083796
    Abstract: The present invention is related to methods for lowering peroxide levels in sucrose acetate isobutyrate formulations and to composition used in and formed by such methods.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: August 10, 2021
    Assignee: Durect Corporation
    Inventors: Gunjan Junnarkar, Michael A. Desjardin, John P. Carr
  • Publication number: 20210128598
    Abstract: The present disclosure is directed to a method of making a composition by combining a vehicle, e.g., a single phase vehicle, and an insoluble component comprising a beneficial agent, and sterilizing the composition using ionizing radiation prior to use, wherein the beneficial agent is stable following exposure to a sterilizing dose of ionizing radiation. Related compositions and methods are provided.
    Type: Application
    Filed: October 19, 2020
    Publication date: May 6, 2021
    Applicant: Durect Corporation
    Inventors: Michael Sekar, SuIl Yum, Felix Theeuwes, William Van Osdol
  • Publication number: 20210121467
    Abstract: Disclosed are formulations and related methods that comprise a non-polymeric, non-water soluble high viscosity liquid carrier material having a viscosity of at least 5,000 cP at 37° C. that does not crystallize neat under ambient or physiological conditions; a specified linear polymer comprising lactide repeat units; and one or more solvents that have a solvent capacity.
    Type: Application
    Filed: October 5, 2020
    Publication date: April 29, 2021
    Applicant: DURECT CORPORATION
    Inventors: Jeremy C. WRIGHT, Felix THEEUWES, John W. GIBSON, Keith E. BRANHAM, Stefania SJOBECK
  • Publication number: 20210038731
    Abstract: The present disclosure generally provides complexes including a pharmaceutically active agent and a functionalized polymer, wherein the functionalized polymer includes repeat units, the repeat units including ionizable repeat units having at least one ionizable side group and/or ionizable end group, a plurality of the at least one ionizable groups forming non-covalent bonds with the pharmaceutically active agent. Polymers which may be used to form such complexes as well as methods of making and using the complexes and related compositions are also provided.
    Type: Application
    Filed: July 21, 2020
    Publication date: February 11, 2021
    Applicant: Durect Corporation
    Inventors: Michael Sekar, Felix Theeuwes, Keith Edward Branham, John W. Gibson, James Matriano, Whitney Moro, John Tipton, William Van Osdol, Su Il Yum
  • Publication number: 20210015924
    Abstract: Compositions may include a pharmaceutical active agent, a high viscosity liquid carrier material (HVLCM), a lactic acid-based polymer, and an organic solvent. Related compositions and methods are also disclosed. For instance, a carrier formulation for controlled release of injectable drugs is disclosed. The formulation may include a non-water soluble high viscosity liquid which may be sucrose acetate isobutyrate, a lactic- acid based polymer which may be a poly(lactic acid)(glycolic acid), and an organic solvent which maintains the composition in a monophasic form at 25° C. in one atmosphere. Drug in the formulation may be released upon administration such that less than 10% (e.g. 2-8%) of drug is released in the first 5 hours; 10% to 80% of the drug is released during a period of 5 hours to 7 days after administration; and 10% to 40% of the drug is released gradually over a period of 7 days to 28 days from initial administration. The drug may be an anti-schizophrenia agent delivered by injection.
    Type: Application
    Filed: June 1, 2020
    Publication date: January 21, 2021
    Applicant: DURECT CORPORATION
    Inventors: Jeremy C. WRIGHT, Wilma TAMRAZ, John J. LEONARD, John W. GIBSON, Keith E. BRANHAM, Stefania SJOBECK, Brooks Boyd, Christopher M. RUBINO
  • Publication number: 20200383957
    Abstract: Pharmaceutical compositions comprising an active pharmaceutical ingredient, a high viscosity liquid carrier material, a hydrophobic solvent, and a hydrophilic solvent are disclosed. Also disclosed are methods of manufacturing and using the compositions. The compositions are suitable for use, e.g., as depot formulations.
    Type: Application
    Filed: May 19, 2020
    Publication date: December 10, 2020
    Applicants: DURECT CORPORATION, SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Wilma TAMRAZ, Huey-Ching SU, WeiQi LIN, Kazuhito YAMADA, Naoki MATSUMOTO, Sreenivasu MUDUMBA, Komei OKABE