Patents Assigned to Marinus Pharmaceuticals, Inc.
  • Patent number: 12246026
    Abstract: This invention relates to methods for treating status epilepticus by administering to the subject in need thereof an intravenous bolus of ganaxolone and a continuous intravenous infusion of a neurosteroid. The method provides SE suppression and continued suppression of SE.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: March 11, 2025
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: David Czekai, Maciej Gasior, Lorianne Masuoka, Julia Tsai, Joseph Hulihan, Alex Aimetti
  • Patent number: 12115169
    Abstract: The disclosure to methods for treating tuberous sclerosis complex and epilepsy disorders comprising administering to a subject in need thereof a therapeutically effective amount of ganaxolone or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 5, 2024
    Date of Patent: October 15, 2024
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Joseph Hulihan, Alex Aimetti, Scott Braunstein
  • Patent number: 11980625
    Abstract: The disclosure to methods for treating tuberous sclerosis complex or tuberous sclerosis complex-related epilepsy, comprising administering to a subject in need thereof a therapeutically effective amount of a pharmaceutically acceptable pregnenolone neurosteroid, such as ganaxolone, to reduce one or more symptoms of tuberous sclerosis complex or tuberous sclerosis complex-related epilepsy.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: May 14, 2024
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Alex Aimetti, Joseph Hulihan, Scott Braunstein
  • Patent number: 11701367
    Abstract: The disclosure to methods for treating tuberous sclerosis complex or tuberous sclerosis complex-related epilepsy, comprising administering to a subject in need thereof a therapeutically effective amount of a pharmaceutically acceptable pregnenolone neurosteroid, such as ganaxolone, to reduce one or more symptoms of tuberous sclerosis complex or tuberous sclerosis complex-related epilepsy.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: July 18, 2023
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Alex Aimetti, Joseph Hulihan, Scott Braunstein
  • Patent number: 11679117
    Abstract: This invention relates to methods for treating status epilepticus by administering to the subject in need thereof an intravenous bolus of ganaxolone and a continuous intravenous infusion of a neurosteroid. The method provides SE suppression and continued suppression of SE.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: June 20, 2023
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: David Czekai, Maciej Gasior, Lorianne Masuoka, Julia Tsai, Joseph Hulihan, Alex Aimetti
  • Patent number: 11266662
    Abstract: Uses of ganaxolone in prophylaxis and treatment of postpartum depression are described. A dose of ganaxolone is administered to a female suffering from postpartum depression or at risk of developing postpartum depression in an amount and at a rate sufficient to alleviate at least one symptom of postpartum depression in the female.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 8, 2022
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Alex Aimetti, Christopher Cashman, Lorianne Masuoka, Jaakko Lappalainen
  • Patent number: 11110100
    Abstract: This invention relates to methods for treating status epilepticus by administering to the subject in need thereof an intravenous bolus of ganaxolone and a continuous intravenous infusion of a neurosteroid. The method provides SE suppression and continued suppression of SE.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: September 7, 2021
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: David Czekai, Maciej Gasior, Lorianne Masuoka, Julia Tsai, Joseph Hulihan, Alex Aimetti
  • Patent number: 11071740
    Abstract: In certain embodiments, the invention is directed to composition comprising stable particles comprising ganaxolone, wherein the volume weighted median diameter (D50) of the particles is from about 50 nm to about 500 nm.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 27, 2021
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Kenneth Shaw, Mingbao Zhang
  • Patent number: 11000531
    Abstract: The disclosure provides a method of treating a patient having postpartum depression, premenstrual dysphoric disorder, menopausal depression, or delirium tremens comprising administering an effective amount of an injectable neurosteroid formulation to the patient. In certain embodiments the injectable neurosteroid formulation is an injectable ganaxolone formulation. Two types of injectable neurosteroid formulations may be used in the disclosed methods. The first such formulation is an injectable formulation containing ganaxolone and sulfobutyl ether ?-cyclodextrin in a 1:1 inclusion complex. The second such formulation is an injectable neurosteroid formulation comprising a neurosteroid, preferably ganaxolone, but which may be a neurosteroid selected from allopregnanolone, ganaxolone, alphaxalone, alphadolone, hydroxydione, minaxolone, pregnanolone, tetrahydrocorticosterone, and combinations of the foregoing; a surface stabilizer selected from hydroxyl ethyl starch, dextran, and povidone; and a surfactant.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 11, 2021
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Christopher Cashman, Jaakko Lappalainen, David A. Czekai
  • Patent number: 10780099
    Abstract: The disclosure provides an injectable neurosteroid nanoparticle formulation comprising nanoparticles having a D50 of less than 2000 nm the nanoparticles comprising a neurosteroid of Formula I, where the variables R1-R9 and X are defined herein and at least one surface stabilizer. The surface stabilizer can be a polymeric surface stabilizer such as hydroxyethyl starch, dextran, or povidone. The injectable neurosteroid nanoparticle formulation can be an intravenous formulation. The disclosure also provides a lyophilized powder of the injectable neurosteroid nanoparticle formulation that can be reconstituted in an aqueous solution prior to administration. The disclosure provides injectable neurosteroid nanoparticle formulations and dry powders of such formulations that have been sterilized by ebeam irradiation.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 22, 2020
    Assignee: MARINUS PHARMACEUTICALS, INC.
    Inventors: Mingbao Zhang, Raymond C. Glowaky, David Czekai
  • Publication number: 20200179403
    Abstract: Uses of ganaxolone in prophylaxis and treatment of postpartum depression are described. A dose of ganaxolone is administered to a female suffering from postpartum depression or at risk of developing postpartum depression in an amount and at a rate sufficient to alleviate at least one symptom of postpartum depression in the female.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 11, 2020
    Applicant: Marinus Pharmaceuticals, Inc.
    Inventors: Alex Aimetti, Christopher Cashman, Lorianne Masuoka, Jaakko Lappalainen
  • Patent number: 10639317
    Abstract: The disclosure provides a method of treating a patient having postpartum depression, premenstrual dysphoric disorder, menopausal depression, or delirium tremens comprising administering an effective amount of an injectable neurosteroid formulation to the patient. In certain embodiments the injectable neurosteroid formulation is an injectable ganaxolone formulation. Two types of injectable neurosteroid formulations may be used in the disclosed methods. The first such formulation is an injectable formulation containing ganaxolone and sulfobutyl ether ?-cyclodextrin in a 1:1 inclusion complex. The second such formulation is an injectable neurosteroid formulation comprising a neurosteroid, preferably ganaxolone, but which may be a neurosteroid selected from allopregnanolone, ganaxolone, alphaxalone, alphadolone, hydroxydione, minaxolone, pregnanolone, tetrahydrocorticosterone, and combinations of the foregoing; a surface stabilizer selected from hydroxyl ethyl starch, dextran, and povidone; and a surfactant.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: May 5, 2020
    Assignee: MARINUS PHARMACEUTICALS INC.
    Inventors: Christopher Cashman, Jaakko Lappalainen, David A Czekai
  • Patent number: 10391105
    Abstract: The disclosure provides a method of treating a patient having postpartum depression, premenstrual dysphoric disorder, menopausal depression, or delirium tremens comprising administering an effective amount of an injectable neurosteroid formulation to the patient. In certain embodiments the injectable neurosteroid formulation is an injectable ganaxolone formulation. Two types of injectable neurosteroid formulations may be used in the disclosed methods. The first such formulation is an injectable formulation containing ganaxolone and sulfobutyl ether ?-cyclodextrin in a 1:1 inclusion complex. The second such formulation is an injectable neurossteroid formulation comprising a neurosteroid, preferably ganaxolone, but which may be a neurosteroid selected from allopregnanolone, ganaxolone, alphaxalone, alphadolone, hydroxydione, minaxolone, pregnanolone, tetrahydrocorticosterone, and combinations of the foregoing; a surface stabilizer selected from hydroxyl ethyl starch, dextran, and povidone; and a surfactant.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: August 27, 2019
    Assignee: MARINUS PHARMACEUTICALS INC.
    Inventors: Christopher Cashman, Jaakko Lappalainen, David A Czekai
  • Publication number: 20190160078
    Abstract: The disclosure provides a method of treating a mammal having a genetic epileptic disorder, comprising chronically administering a pharmaceutically acceptable pregnenolone neurosteroid to a mammal having a genetic epileptic disorder in an amount effective to reduce the seizure frequency in the mammal. In certain preferred embodiments, the mammal is a human patient who has a CDKL5 genetic mutation. In certain preferred embodiments, the patient has a low endogenous level of a neurosteroid(s). In certain preferred embodiments, the pregnenolone neurosteroid is ganaxolone.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 30, 2019
    Applicant: Marinus Pharmaceuticals, Inc.
    Inventors: Lorianne K. Masuoka, Jaakko Lappalainen
  • Publication number: 20190117674
    Abstract: In certain embodiments, the invention is directed to composition comprising stable particles comprising ganaxolone, wherein the volume weighted median diameter (D50) of the particles is from about 50 nm to about 500 nm.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 25, 2019
    Applicant: Marinus Pharmaceuticals, Inc.
    Inventors: Kenneth Shaw, Mingbao Zhang
  • Publication number: 20190111059
    Abstract: A method of treating suffering from a CNS disorder, comprising administering a reduced folate, or a derivative, prodrug, active metabolite, stereoisomer, polymorph, analogue, or pharmaceutically acceptable salt thereof, to a human suffering from a neurobehavioral CNS disorder in which the patient exhibits a folate deficiency, wherein the amount of reduced folate is therapeutically effective to improve at least one core symptom of the CNS disorder, is disclosed.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Applicant: Marinus Pharmaceuticals, Inc.
    Inventors: Richard Frye, John Slattery
  • Patent number: 8362286
    Abstract: Applicants have discovered a method for the stereoselective and regioselective synthesis of 3?-hydroxy, 3?-methyl-5?-pregnan-20-one (ganaxolone) comprising reacting 5?-pregnane-3,20-dione; with an organometallic methylating agent in an inert solvent to provide a compound of the formula
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: January 29, 2013
    Assignee: Marinus Pharmaceuticals, Inc.
    Inventors: Kenneth Shaw, Alan Hutchison
  • Publication number: 20120264766
    Abstract: Pseudobase benzo[c]phenanthridines and the pharmaceutically acceptable salts thereof of Formula I are provided herein. The variables R, R1, R2, R3, and R4 are defined herein. Certain pseudobase benzo[c]phenanthridines provided herein act as prodrugs, targeting the parent benzo[c]phenanthridinium alkaloid to hydrophilic or hydrophobic regions in the body. Pharmaceutical compositions comprising a pseudobase benzo[c]phenanthridine and a carrier, excipient, or diluent are provided herein. Methods of treating or preventing microbial, fungal and or viral infections and methods of treating diseases and disorders responsive to protein kinase C modulation, topoisomerase I, and/or topoisomerase II modulation are also provided.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 18, 2012
    Applicant: Marinus Pharmaceuticals Inc.,
    Inventors: Kenneth Shaw, Mingbao Zhang, Amy F.T. Arnsten
  • Publication number: 20110040112
    Abstract: Applicants have discovered a method for the stereoselective and regioselective synthesis of 3?-hydroxy, 3?-methyl-5?-pregnan-20-one (ganaxolone) comprising reacting 5?-pregnane-3,20-dione; with an organometallic methylating agent in an inert solvent to provide a compound of the formula
    Type: Application
    Filed: August 11, 2010
    Publication date: February 17, 2011
    Applicant: MARINUS PHARMACEUTICALS, INC.
    Inventors: Kenneth Shaw, Alan Hutchison
  • Publication number: 20100256164
    Abstract: Pseudobase benzo[c]phenanthridines and the pharmaceutically acceptable salts thereof of Formula I are provided herein. The variables R, R1, R2, R3, and R4 are defined herein. Certain pseudobase benzo[c]phenanthridines provided herein act as prodrugs, targeting the parent benzo[c]phenanthridinium alkaloid to hydrophilic or hydrophobic regions in the body. Pharmaceutical compositions comprising a pseudobase benzo[c]phenanthridine and a carrier, excipient, or diluent are provided herein. Methods of treating or preventing microbial, fungal and or viral infections and methods of treating diseases and disorders responsive to protein kinase C modulation, topoisomerase I, and/or topoisomerase II modulation are also provided.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Applicant: Marinus Pharmaceuticals Inc.,
    Inventors: Kenneth Shaw, Mingbao Zhang, Amy F.T. Arnsten