Patents by Inventor Walter Elger

Walter Elger 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: 20200383906
    Abstract: The invention relates to an intravaginal drug delivery device for hormonal contraception with prevention/reduction of intermenstrual bleeding and menopausal cycle disorders. The intravaginal drug delivery device includes estriol or a precursor of this compound and a progestogen or a precursor thereof.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 10, 2020
    Inventors: Walter Elger, Klaus Nickisch
  • Publication number: 20190328657
    Abstract: A variety of different intravaginal drug delivery devices are described for the delivery of estrogens and progestins. The release rate of estrogens and progestins can be controlled by varying the matrix material or by the application of a thin coating. The intravaginal drug delivery devices may be composed of one or more individual compartments. By controlling various physical and chemical parameters, non-zero release rates of the estrogen or progestins may be achieved.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 31, 2019
    Inventors: Walter Elger, Klaus Nickisch, Ze'ev Shaked, Karin Eggenreich, Simone Eder, Andreas Witschnigg
  • Publication number: 20190328656
    Abstract: A variety of different intravaginal drug delivery devices are described for the delivery of estrogens and progestins. The release rate of estrogens and progestins can be controlled by varying the matrix material or by the application of a thin coating. The intravaginal drug delivery devices may be composed of one or more individual compartments. By controlling various physical and chemical parameters, non-zero release rates of the estrogen or progestins may be achieved.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 31, 2019
    Inventors: Walter Elger, Klaus Nickisch, Ze'ev Shaked, Karin Eggenreich, Simone Eder, Andreas Witschnigg
  • Patent number: 10273263
    Abstract: Various prodrug compounds having the general structure: Active agent—(acid)-(linker)—SO2NR1R2 are described herein. Compounds having this general structure were shown to be more orally active than the unmodified parent molecule.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: April 30, 2019
    Assignee: Evestra, Inc.
    Inventors: Klaus Nickisch, Bindu Santhamma, Gulzar Ahmed, Frederick Meece, Walter Elger, Ralf Wyrwa, Hareesh Nair
  • Patent number: 9850273
    Abstract: Described herein are compositions and methods for hormone replacement therapy that address the shortcomings of the existing methods. Described herein are pharmaceutically effective partial agonistic antiprogestins. The combined application of estrogens (such as estradiol, estriol and conjugated estrogens) and the disclosed partial agonistic antiprogestins can be used in hormone replacement therapy.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 26, 2017
    Assignee: Evestra, Inc.
    Inventors: Klaus Nickisch, Bindu Santhamma, Hareesh Nair, Walter Elger
  • Publication number: 20170349624
    Abstract: Various prodrug compounds having the general structure: Active agent-(acid)-(linker)-SO2NR1R2 are described herein. Compounds having this general structure were shown to be more orally active than the unmodified parent molecule.
    Type: Application
    Filed: August 24, 2017
    Publication date: December 7, 2017
    Inventors: Klaus Nickisch, Bindu Santhamma, Gulzar Ahmed, Frederick Meece, Walter Elger, Ralf Wyrwa, Hareesh Nair
  • Patent number: 9745338
    Abstract: Various prodrug compounds having the general structure: Active agent-(acid)-(linker)-SO2NR1R2 are described herein. Compounds having this general structure were shown to be more orally active than the unmodified parent molecule.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 29, 2017
    Assignee: Evestra, Inc.
    Inventors: Klaus Nickisch, Bindu Santhamma, Gulzar Ahmed, Frederick Meece, Walter Elger, Ralf Wyrwa, Hareesh Nair
  • Publication number: 20160159852
    Abstract: Described herein are compositions and methods for hormone replacement therapy that address the shortcomings of the existing methods. Described herein are pharmaceutically effective partial agonistic antiprogestins. The combined application of estrogens (such as estradiol, estriol and conjugated estrogens) and the disclosed partial agonistic antiprogestins can be used in hormone replacement therapy.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Klaus Nickisch, Bindu Santhamma, Hareesh Nair, Walter Elger
  • Patent number: 9096641
    Abstract: Described herein are imidazolyl compounds which either act as pure antiprogestins and methods of using such pure antagonists for gynecological indications and breast cancer.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: August 4, 2015
    Assignee: Evestra, Inc.
    Inventors: Klaus Nickisch, Walter Elger, Bindu Santhamma
  • Publication number: 20150018322
    Abstract: Various prodrug compounds having the general structure: Active agent-(acid)-(linker)-SO2NR1R2 are described herein. Compounds having this general structure were shown to be more orally active than the unmodified parent molecule.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventors: Klaus Nickisch, Bindu Santhamma, Gulzar Ahmed, Frederick Meece, Walter Elger, Ralf Wyrwa, Hareesh Nair
  • Publication number: 20140364600
    Abstract: Described herein are imidazolyl compounds which either act as pure antiprogestins and methods of using such pure antagonists for gynecological indications and breast cancer.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Klaus Nickisch, Walter Elger, Bindu Santhamma
  • Patent number: 8193252
    Abstract: This present invention disclosed the use of mesoprogestins, a new class of progesterone receptor modulators (PRMs), for the treatment and prevention of benign hormone dependent gynecological disorders: a) for the treatment of gynecological disorder such as endometriosis, uterine fibroids, postoperative peritoneal adhesions, dysfunctional bleeding (metrorrhagia, menorrhagia) and dysmenorrhea; b) for the prevention of gynecological disorders such as postoperative, peritoneal adhesions, dysfunctional uterine bleeding (metrorrhagia, menorrhagia) and dysmenorrhea; and c) a method of treatment and prevention of the above mentioned disorders in a female, preferably in a human female, in need of treatment or prevention of one or more of these disorders, with an effective amount of a mesoprogestin. Mesoprogestins are defined as compounds possessing both agonistic and antagonistic activities at the progesterone receptor (PR) in vivo.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: June 5, 2012
    Assignee: Bayer Pharma AG
    Inventors: Kristof Chwalisz, Walter Elger, Gerd Shubert
  • Publication number: 20110250274
    Abstract: Disclosed herein are oral dosage forms and methods of their use, in particular oral dosage systems for the delivery of estriol compounds. Embodiments described herein relate to rapidly disintegrating oral dosage formulations that disintegrate in the saliva of the buccal and/or sublingual and/or esophageal cavity. Oral dosage forms described herein relate to stabilized amorphous and nanocrystalline forms of the active ingredients of the formulations.
    Type: Application
    Filed: September 18, 2009
    Publication date: October 13, 2011
    Inventors: Ze'ev Shaked, Walter Elger, Klaus Nickisch
  • Patent number: 7732493
    Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: June 8, 2010
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Alexander Hillisch, Olaf Peters, Christian Gege, Wilko Regenhardt, Gabriele Moeller, Dominga Deluca, Jerzy Adamski, Walter Elger, Birgitt Schneider
  • Patent number: 7629334
    Abstract: The use of mesoprogestins as pharmaceutical components for the manufacture of a medicament for hormone replacement therapy (HRT) and as components for the combined use together with an estrogen for the manufacture of a medicament for HRT as well as in respective HRT-methods and methods of treating hormone deficiency and hormone irregularity symptoms. Mesoprogestins are defined as compounds possessing both agonistic and antagonistic activities at the progesterone receptor (PR) in vivo. They stabilize the function of PR at an intermediate level of agonistic and antagonistic. Corresponding functional states cannot be achieved with progestins or antiprogestins. J867, J912, J956 and J1042 are the mesoprogestins preferred herein.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: December 8, 2009
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Kristof Chwalisz, Walter Elger, Gerd Schubert
  • Patent number: 7550451
    Abstract: The invention relates to new compounds of general formula I, their production and pharmaceutical preparations that contain these compounds. The compounds according to the invention are preferably used for female birth control and for HRT.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: June 23, 2009
    Assignee: Bayer Schering Pharma AG
    Inventors: Alexander Hillisch, Walter Elger, Gerd Schubert, Birgitt Schneider, Gudrun Reddersen
  • Patent number: 7534780
    Abstract: The invention relates to estradiol prodrugs of general formula (I), in which group Z is bonded to the steroid, process for their production, pharmaceutical compositions that contain these compounds, as well as their use for the production of pharmaceutical agents with estrogenic action.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: May 19, 2009
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Ralf Wyrwa, Sven Ring, Peter Droescher, Alexander Hillisch, Walter Elger, Birgitt Schneider, Gudrun Reddersen
  • Patent number: 7507725
    Abstract: The invention relates to compounds which, acting as a prodrug and/or support, enable an active agent to be taken up by the erythrocytes and/or an active agent to bind to the erythrocytes. The uptake of these compounds by and/or the binding thereof to the erythrocytes is made possible by a group of formula —SO2NR1R2, wherein R1 and R2, independently of each other, mean a hydrogen atom, an acyl group, an alkyl group, a cycloalkyl group, an aryl group, a cyano group or a hydroxy group. The inventive prodrugs enable active agents such as endogenic substances, natural substances and synthetic substances with therapeutically useful properties which have a high “first path” effect, to be administered orally effectively or significantly improve the oral activity thereof.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: March 24, 2009
    Assignee: Schering AG
    Inventors: Walter Elger, Alexander Hillisch, Annemarie Hedden, Sigfrid Schwarz, Klaus Schollkopf
  • Publication number: 20090023896
    Abstract: This invention relates to compounds that as prodrugs and/or vehicles make it possible for an active ingredient to be taken up into erythrocytes and/or an active ingredient to bind to erythrocytes, whereby the uptake of the compounds into erythrocytes and/or the binding of the compounds to erythrocytes is made possible by a group —SO2NR1R2, whereby R1 and R2, independently of one another, mean a hydrogen atom, an acyl group, an alkyl group, a cycloalkyl group, an aryl group, a cyano group or a hydroxy group. By the prodrugs according to the invention, active ingredients, such as endogenous substances, natural substances and synthetic substances with therapeutically valuable properties with a high “first pass” effect are made available orally to a reasonable extent or are decisively improved relative to oral activity.
    Type: Application
    Filed: June 19, 2008
    Publication date: January 22, 2009
    Inventors: Walter Elger, Alexander Hillisch, Annemarie Hedden, Sigfrid Schwarz, Klaus Schollkopf
  • Publication number: 20080306164
    Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.
    Type: Application
    Filed: August 15, 2008
    Publication date: December 11, 2008
    Inventors: Alexander Hillisch, Olaf Peters, Christian Gege, Wilko Regenhardt, Gabriele Moeller, Dominga Deluca, Jerzy Adamski, Walter Elger, Birgitt Schneider