Patents Assigned to Ardenia Investments Ltd.
  • Patent number: 10322996
    Abstract: A method for producing derivatives of N-retinoylaminoalkane sulfonic acid, the method comprising providing retinoic acid, chloroformate, aminoalkanesulfonic acid selected from the group consisting of cysteic acid and alkyl ester thereof, cysteinesulfinic acid and alkyl ester thereof, homocysteic acid and alkyl ester thereof, homocysteinesulfinic acid and alkyl esters thereof, taurine and derivatives thereof, and an organic solvent, and a base, mixing said components under substantial absence of oxidizing compounds thereby forming a reaction mixture comprising a liquid phase, wherein the liquid phase is one phase and the derivatives of N-retinoylaminoalkane sulfonic acid are formed in said liquid phase.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 18, 2019
    Assignee: ARDENIA INVESTMENTS, LTD
    Inventors: Dzianis Babrou, Maryna Budnikava, Mikael Björklund, Julian Aleksov
  • Patent number: 10138204
    Abstract: A method for producing derivatives of N-retinoylaminoalkane sulfonic acid, the method comprising providing retinoic acid, chloroformate, aminoalkanesulfonic acid selected from the group consisting of cysteic acid and alkyl ester thereof, cysteinesulfinic acid and alkyl ester thereof, homocysteic acid and alkyl ester thereof, homocysteinesulfinic acid and alkyl esters thereof, taurine and derivatives thereof, and an organic solvent, and a base, mixing said components under substantial absence of oxidizing compounds thereby forming a reaction mixture comprising a liquid phase, wherein the liquid phase is one phase and the derivatives of N-retinoylaminoalkane sulfonic acid are formed in said liquid phase.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 27, 2018
    Assignee: ARDENIA INVESTMENTS, LTD
    Inventors: Dzianis Babrou, Maryna Budnikava, Mikael Björklund, Julian Aleksov
  • Patent number: 9993438
    Abstract: This invention relates to a drug delivery system for administration of poorly water soluble pharmaceutically active substance, a pharmaceutical composition comprising such a drug delivery system, and a method for the preparation of such a drug delivery system. The invention also relates to a method for controlling the particle size and/or particle shape and/or particle size distribution in such a drug delivery system, and to a method for increasing the drug loading capacity of the particles. Furthermore the invention also relates to the use of such a drug delivery system for the preparation of a medicament for the treatment of cancer.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: June 12, 2018
    Assignee: Ardenia Investments, Ltd.
    Inventors: Julian Aleksov, Igor Lokot
  • Patent number: 8999382
    Abstract: This invention relates to a drug delivery system for administration of poorly water soluble pharmaceutically active substance, a pharmaceutical composition comprising such a drug delivery system, and a method for the preparation of such a drug delivery system. The invention also relates to a method for controlling the particle size and/or particle shape and/or particle size distribution in such a drug delivery system, and to a method for increasing the drug loading capacity of the particles. Furthermore the invention also relates to the use of such a drug delivery system for the preparation of a medicament for the treatment of cancer.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 7, 2015
    Assignee: Ardenia Investments, Ltd.
    Inventors: Julian Aleksov, Igor Lokot
  • Patent number: 8765173
    Abstract: A drug delivery system (DDS) for administration of a water soluble, cationic, and amphiphilic pharmaceutically active substance (API) which DDS comprises poorly water soluble nanoparticles formed by the API together with a Na-salt of N-all-trans-retinoyl cysteic acid methyl ester and/or a Na-salt of N-13-cis-retinoyl cysteic acid methyl ester. A pharmaceutical composition comprising such a DDS. Methods for preparation of such a DDS and such a pharmaceutical composition. Use of such a DDS and pharmaceutical composition for treatment of cancer.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: July 1, 2014
    Assignee: Ardenia Investments, Ltd.
    Inventors: Julian Aleksov, Igor Lokot
  • Patent number: 7030158
    Abstract: A group of new compounds, N-(all-trans-Retinoyl)-L-cysteic acid, N-(13-cis-Retinoyl)-L-cysteic acid, N-(all-trans-Retinoyl)-L-cysteinesulfinic acid, N-(13-cis-Retinoyl)-L-cysteinesulfinic acid, N-(all-trans-Retinoyl)-L-homocysteic acid, N-(13-cis-Retinoyl)-L-homocysteic acid, and sodium salts of these compounds, including sodium salts of their esters and amides, is shown to exhibit therapeutic effects per se, and which compounds in combination with cytotoxic compounds, such as docetaxel, paclitaxel, doxorubicin and mitoxantrone, exhibit a synergistic effect. These compounds make it possible to manufacture new formulations of poorly soluble pharmaceutical compounds, and the present invention discloses a process of manufacturing water-soluble formulations of such compounds, exemplified by docetaxel, and paclitaxel, exhibiting enhanced pharmacological activity, and formulations of water-soluble pharmaceuticals exemplified by doxorubicin and mitoxantrone, exhibiting improved therapeutic efficacy.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: April 18, 2006
    Assignee: Ardenia Investments Ltd.
    Inventors: Oleg Strelchenok, Julian Aleksov
  • Patent number: 6699851
    Abstract: Novel amides of polyunsaturated fatty acids with cysteamine-S-phosphate have been synthesized. Combinations of the all-trans-retinoic acid and/or amides of the 13-cis-retinoic acid with O-phospho-L-tyrosine, and N-docosahexaenoyl-cysteamine-S-phosphate, N-eicosapentaenoyl-cysteamine-S-phosphatee, N-arachidonoyl-cysteamine-S-phosphate, N-&agr;-linolenoyl-cysteamine-S-phosphate, and N-&ggr;-linolenoyl-cysteamine-S-phosphate and their analogues N-docosahexaenoyl-O-phospho-2-aminoethanol, N-eicosapentaenoyl-O-phospho-2-aminoethanol, N-arachidonoyl-O-phospho-2-aminoethanol, N-&agr;-linolenoyl-O-phospho-2-aminoethanol, N-&ggr;-linolenoyl-O-phospho-2-aminoethanol in different compositions exhibit a marked cell-growth inhibiting effect and display anti-tumor activity.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: March 2, 2004
    Assignee: Ardenia Investments, Ltd.
    Inventor: Oleg Strelchenok
  • Patent number: 6642271
    Abstract: This invention relates to novel compounds, capable of potentiating the efficacy of therapeutically active compounds, for example cytotoxic compounds used in the treatment of cancer. The novel compounds have been shown to increase the pharmacological activity of a conventional paclitaxel formulation and to make it possible to manufacture a new formulation of paclitaxel, exhibiting improved solubility, improved storage properties, and increased therapeutic efficacy as shown in the enclosed examples.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 4, 2003
    Assignee: Ardenia Investments, Ltd.
    Inventors: Oleg Strelchenok, Julian Aleksov
  • Patent number: 6599507
    Abstract: A complex of alpha-fetoprotein (AFP) and N-arachidonoyl aminoethyl phosphate (N-AAP) is shown to have significant immunostimulating properties and can therefore be used as a therapeutic agent in various indications, such as immune deficiencies and in particular immune deficiencies related to cancer therapy.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 29, 2003
    Assignee: Ardenia Investments, Ltd.
    Inventor: Oleg Strelchenok
  • Patent number: 6403554
    Abstract: Novel amides are disclosed, in particular amides of the all-trans-retinoic acid or 13-cis-retinoic acid and arachidonic acid and docosahexaenoic acid and eicosapentaenoic acid or linoleic acid with 2-aminoethanol, alpha-L-serine, alpha-L-threonine, alpha-L-tyrosine containing phosphate groups. Further, the present invention discloses the synthesis and use of these compounds, in particular their pharmaceutical application.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: June 11, 2002
    Assignee: Ardenia Investments Ltd.
    Inventor: Oleg Strelchenok
  • Patent number: 6358936
    Abstract: It is shown that the potency of anti-cancer drugs, here exemplified by doxorubicin, can be increased by the use of polyunsaturated fatty acid amides and in particular specific combinations of such compounds, forming complexes with doxorubicin. Further, a modified form of doxorubicin is presented.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: March 19, 2002
    Assignee: Ardenia Investments, Ltd.
    Inventor: Oleg Strelchenok
  • Publication number: 20010018425
    Abstract: It is shown that the potency of anti-cancer drugs, here exemplified by doxorubicin, can be increased by the use of polyunsaturated fatty acid amides and in particular specific combinations of such compounds, forming complexes with doxorubicin. Further, a modified form of doxorubicin is presented.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 30, 2001
    Applicant: ARDENIA INVESTMENTS, LTD.
    Inventor: Oleg Strelchenok
  • Patent number: 6274747
    Abstract: Novel amides are disclosed, in particular amides of the all-trans-retinoic acid or 13-cis-retinoic acid and arachidonic acid and docosahexaenoic acid and eicosapentaenoic acid or linoleic acid with 2-aminoethanol, alpha-L-serine, alpha-L-threonine, alpha-L-tyrosine containing phosphate groups. Further, the present invention discloses the synthesis and use of these compounds, in particular their pharmaceutical application.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 14, 2001
    Assignee: Ardenia Investments Ltd.
    Inventor: Oleg Strelchenok
  • Patent number: 6197809
    Abstract: It is shown that the potency of anti-cancer drugs, here exemplified by doxorubicin, can be increased by the use of polyunsaturated fatty acid amides and in particular specific combinations of such compounds, forming complexes with doxorubicin. Further, a modified form of doxorubicin is presented.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: March 6, 2001
    Assignee: Ardenia Investments Ltd.
    Inventor: Oleg Strelchenok