Patents Assigned to ASTA Pharma Aktiengesellschaft
  • Patent number: 6271254
    Abstract: Pharmaceutical compositions and processes for their preparation containing R-&agr;-lipoic acid or S-&agr;-lipoic acid or pharmaceutically acceptable salts thereof. The pharmaceutical compositions have a cytoprotective activity and are suitable for combatting pain and inflammation.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: August 7, 2001
    Assignee: ASTA Pharma Aktiengesellschaft
    Inventors: Heinz Ulrich, Carl-Heinrich Weischer, Jürgen Engel, Helmut Hettche
  • Patent number: 5998403
    Abstract: The present invention relates to salts of azelastine having improved solubility in water. The salts of the present invention are prepared by reacting azelastine with acetic acid, gluconic acid, lactic acid, or malic acid. The azelastine salts are effective in providing a cytoprotective effect.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: December 7, 1999
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Helmut Hettche, Reinhard Muckenschnabel, Gerhard Scheffler, Ilona Fleischhauer, Wolfgang Morick
  • Patent number: 5859003
    Abstract: The present invention relates to salts of azelastine having improved solubility in water. The salts of the present invention are prepared by reacting azelastine with acetic acid, gluconic acid, lactic acid or malic acid. A pharmaceutical composition may be prepared containing an azelastine salt and a pharmaceutically-acceptable carrier or diluent therefor. The pharmaceutical composition is useful in the treatment of allergies, asthma, inflammatory and psoriasis disorders and provides a cytoprotective effect.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: January 12, 1999
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Helmut Hettche, Reinhard Muckenschnabel, Gerhard Scheffler, Ilona Fleischhauer, Wolfgang Morick
  • Patent number: 5728735
    Abstract: Pharmaceutical compositions and processes for their preparation containing R-.alpha.-lipoic acid or S-.alpha.-lipoic acid or pharmaceutically acceptable salts thereof. The pharmaceutical compositions have a cytoprotective activity and are suitable for combatting pain and inflammation.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: March 17, 1998
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Heinz Ulrich, Carl-Heinrich Weischer, Jurgen Engel, Helmut Hettche
  • Patent number: 5334612
    Abstract: Pharmaceutical compositions containing at least one compound of Formula I, ##STR1## where X is a hydrogen atom or both X's represent a direct link between the two sulphur atoms; Y is hydrogen or C.sub.1 -C.sub.6 alkyl and n represents a number from 1 to 10, or their pharmaceutically acceptable salts including .alpha.-lipoic acid and dihydrolipoic acid. The pharmaceutical compositions are useful for the treatment of diseases caused by retroviruses.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: August 2, 1994
    Assignee: ASTA Pharma Aktiengesellschaft
    Inventors: Joachim Kalden, Bernhard Fleckenstein, Andreas Baur, Thomas Harrer
  • Patent number: 5290769
    Abstract: The use of alkylphosphoric acid compounds of Formula IR--Y--PO.sub.2.sup..crclbar. --X--R.sub.1 Iwhere in Formula IR represents a saturated or unsaturated hydrocarbon radical with 12 to 24 carbon atoms or where R represents the group--CH.sub.2 --CHR.sub.3 --CH.sub.2 --Z--R.sub.4 and R.sub.3 is a C.sub.1 -C.sub.6 -alkoxy group or a C.sub.1 -C.sub.6 -alkoxymethyl group,Z represents oxygen or sulphur and R.sub.4 represents a C.sub.1 -C.sub.24 -alkyl radical,X is an oxygen atom, NH or NR.sub.2 and Y is an oxygen atom or NH, R.sub.1 is a C.sub.1 -C.sub.8 -alkyl group, or where R.sub.1 represents a C.sub.2 -C.sub.8 -alkyl group which is unsaturated and/or substituted by halogen, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, tri-C.sub.1 -C.sub.6 -alkylamino, hydroxy, carboxy, C.sub.3 -C.sub.8 -cycloalkyl or phenyl for the preparation of a pharmaceutical composition for combating psoriasis disorders.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Hansjorg Eibl, Clemens Unger, Jurgen Engel
  • Patent number: 5271946
    Abstract: Azelastine-containing pharmaceutical compositions which provide controlled release of the active substance using a sustained release component. The compositions contain azelastine or a physiologically acceptable salt of azelastine, together with 0.001 to 800 parts of sustained release component for each part by weight of azelastine (calculated as base) and the release rate of azelastine is between 0.05 and 5 mg per hour.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: December 21, 1993
    Assignee: Asta Pharma Aktiengesellschaft
    Inventor: Helmut Hettche
  • Patent number: 5232919
    Abstract: An embonic acid salt of azelastine is disclosed which does not possess the bitter taste of azelastine, and which therefore is suitable for orally administered formulations.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: August 3, 1993
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Gerhard Scheffler, Dieter Sauerbier, Jurgen Engel
  • Patent number: 5204335
    Abstract: Ifosfamide lyophilizate consisting substantially of ifosfamide and 0.1 to 17 parts by weight of a hexitol.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: April 20, 1993
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Dieter Sauerbier, Uwe-Peter Dammann, Otto Isaac
  • Patent number: 5084481
    Abstract: Pharmaceutical compositions and their preparation which contain dihydrolipoic acid or its pharmaceutically acceptable salts as active substance. The pharmaceutical compositions have a cytoprotective effect and are suitable for combatting pain and inflammatory disorders.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: January 28, 1992
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Heinz Ulrich, Carl-Heinrich Weischer, Jurgen Engel, Helmut Hettche
  • Patent number: 5068233
    Abstract: A medicine having a synergistic activity containing a combination of azelastine and theophylline or azelastine and at least one .beta.-mimetic.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: November 26, 1991
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Ute Achterrath-Tuckerman, Rudolf Aurich, Jurgen Engel, Helmut Hettche, Axel Kleeman
  • Patent number: 5023335
    Abstract: 1,2-Bis(aminomethyl)-cyclobutane-platinum complexes having an anti-tumor activity.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: June 11, 1991
    Assignee: ASTA Pharma Aktiengesellschaft
    Inventors: Wolfgang Schumacher, Johannes Respondek, Jurgen Engel, Jorg Pohl, Rainer Voegeli, Peter Hilgard
  • Patent number: 4997822
    Abstract: There are disclosed compounds of the formula ##STR1## The compounds have antitumour and AIDS treatment activity.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: March 5, 1991
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Hans-Jurgen Hohorst, Ludmilla Bielicki, Georg Voelcker, Ulf Niemeyer
  • Patent number: 4992553
    Abstract: A compound of the general formula: ##STR1## wherein R.sub.1 is hydrogen, a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.2 is hydrogen or a halogen atom, R.sub.3 is hydrogen or a C.sub.1 -C.sub.6 alkyl group, R.sub.4 is a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.5 is hydrogen or a halogen atom and R.sub.6 is hydrogen or a halogen atom, Alk is a C.sub.2 -C.sub.10 alkylene chain where 4 neighboring CH.sub.2 groups may also be replaced by a 1,4-phenylene ring, A-B is the group HN--CH.sub.2 --CH.sub.2 --NH.sub.2, H.sub.2 N--CH.sub.2 --CH--CH.sub.2 --NH.sub.2 or ##STR2## and R.sub.7 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or a phenyl radical and X stands for the equivalent of a physiologically acceptable anion. The compound is useful for the treatment of hormone dependent tumors.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: February 12, 1991
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Erwin von Angerer, Norbert Knebel, Helmut Schonenberger, Jurgen Engel
  • Patent number: 4952575
    Abstract: Solutions comprising oxazaphosphorins having the general formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are radicals and at least two of said radicals are 2-chloroethyl and/or 2-mathanesulfonyloxyethyl and the remaining radical is selected from hydrogen, methyl and ethyl; and about 80% to about 100% (v/v) ethanol; wherein the oxazaphosphorin concentration is about 10% to about 70% (w/v); and a process for the preparation thereof.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: August 28, 1990
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Dieter Sauerbier, Klaus Molge, Werner Weigert, Otto Issac
  • Patent number: 4923858
    Abstract: Compounds of the general formula: ##STR1## wherein the radicals R.sub.1 and R.sub.2 are the same or different and represent hydrogen or C.sub.1 -C.sub.6 -alkyl, the radicals R.sub.3 and R.sub.4 are the same or different and represent hydrogen, C.sub.1 -C.sub.6 -alkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, halogen or C.sub.2 -C.sub.6 -alkanoyl, X is oxygen, sulphur or the group --NR.sub.5 and R.sub.5 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkanoyl or benzoyl, m and n in each case may represent the integers 1, 2 or 3 and the phenyl radical A is unsubsituted or is substituted by halogen, nitro, C.sub.1 -C.sub.6 -alkyl, trifluoromethyl, C.sub.3 -C.sub.7 -cycloalkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, C.sub.2 -C.sub.6 -alkanoylamino, CN, carboxy, C.sub.1 -C.sub.6 -alkoxycarbonyl, phenyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: May 8, 1990
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Jurgen Engel, Peter Emig, Bernd Nickel, Istvan Szelenyi
  • Patent number: 4868175
    Abstract: Anti-asthmatically acting compounds of formula ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen, fluorine, chlorine, bromine, trifluoromethyl, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy and the radical A is the group ##STR2## wherein R.sub.3 is hydrogen, a phenyl radical, an indolyl-(3)-methyl radical, imidazolyl-(4)-methyl radical, a C.sub.1 -C.sub.10 -alkyl group or wherein R.sub.3 represents a C.sub.1 -C.sub.10 -alkyl group which is substituted by a carboxy group, a C.sub.1 -C.sub.6 -alkoxycarbonyl group, an aminocarbonyl group, a hydroxy group, a C.sub.1 -C.sub.6 -alkoxy group, a C.sub.2 -C.sub.6 -alkanoyl-oxy group, a mercapto group, a C.sub.1 -C.sub.6 -alkylthio group, a C.sub.2 -C.sub.6 -alkanoylmercapto group, a phenyl group, a hydroxyphenyl group, a dihydroxyphenyl group, an amino-C.sub.1 -C.sub.6 -alkylthio group, an amino-C.sub.1 -C.sub.6 -alkyloxy group, an amino group, a ureido group (H.sub.2 NCONH--) or a guanidino group or wherein R.sub.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Asta Pharma Aktiengesellschaft
    Inventor: Jurgen Engle
  • Patent number: 4851420
    Abstract: 2,6-diamino-3-halobenzylpyridines of the formula I: ##STR1## wherein R.sub.1 is fluorine and R.sub.2 is hydrogen or chlorine as well as their physiologically acceptable acid addition salts, processes for their manufacture and their use in pharmaceuticals.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: July 25, 1989
    Assignee: ASTA Pharma Aktiengesellschaft
    Inventors: Peter Emig, Juergen Engel, Gerhard Scheffler, Carl H. Weischer, Bernd Nickel
  • Patent number: 4770870
    Abstract: Through the combined use of a 4-sulfido-oxazaphosphorine of the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are hydrogen, methyl, ethyl, 2-chloroethyl or 2-methanesulfonyloxyethyl and at least two of them are taken from the group consisting of 2-chloroethyl and 2-methanesulfonyloxyethyl, R.sub.4 is hydrogen or methyl, R.sub.5 is a C.sub.2 -C.sub.6 -hydroxyalkyl group or a C.sub.2 -C.sub.6 -mercaptoalkyl group of each of these groups with an additional mercapto group, or R.sub.5 is a carboxy-C.sub.1 -C.sub.10 alkyl group, a carb-C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.10 -alkyl group, a 2-amino-2-carboxyethyl group, a 2-amine-2-carb-C.sub.1 -C.sub.6 -alkoxy-ethyl group, a 2-C.sub.2 -C.sub.6 -alkanoylamino-2-carboxyethyl group, the glutathionyl group, a C.sub.2 -C.sub.6 -sulfoalkyl group or a C.sub.2 -C.sub.6 -sulfoalkyl group which contains a mercapto group or a physiologically compatible salt thereof in combination with a thion compound of the formula:R.sub.6 SR.sub.7 IIwhere R.sub.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: September 13, 1988
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Hans-Jurgen Hohorst, Gernot Peter, Georg Voelcker, Erhardt Wrabetz