Patents by Inventor Ivars Kalvinsh

Ivars Kalvinsh 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: 20050143385
    Abstract: This invention pertains to certain carbamic acid compounds which inhibit HDAC (histone deacetylase) activity of the following formula: wherein: Cy is independently a cyclyl group; Q1 is independently a covalent bond or cyclyl leader group; the piperazin-1,4-diyl group is optionally substituted; J1 is independently a covalent bond or —C(?;O)—; J2 is independently —C(?O)— or —S(?O)2—; Q2 is independently an acid leader group; wherein: Cy is independently: C3-20carbocyclyl, C3-20heterocyclyl, or C5-20aryl; and is optionally substituted; Q1 is independently: a covalent bond; C1-7alkylene; or C1-7alkylene-X—C1-7alkylene, —X—C1-7alkylene, or C1-7alkylene-X—, wherein X is —O— or —S—; and is optionally substituted; Q2 is independently: C4-8alkylene; and is optionally substituted; and has a backbone length of at least 4 atoms; or: Q2 is independently: C5-20arylene; C5-20arylene-C1-7alkylene; C1-7alkylene-C5-20arylene; or, C1-7alkylene-C5-20arylene-C1-7alkylene; and is optionally substituted; and has a backbone le
    Type: Application
    Filed: April 3, 2003
    Publication date: June 30, 2005
    Inventors: Clare Watkins, Maria-Rosario Romero-Martin, James Ritchie, Paul Finn, Ivars Kalvinsh, Einars Loza, Klar Dikovska, Igor Starchenkov, Daina Lolya, Vija Gailite
  • Publication number: 20050107445
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: March 29, 2004
    Publication date: May 19, 2005
    Applicant: PROLIFIX LIMITED
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn Moore, James Ritchie, Paul Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. Harris, James Duffy
  • Patent number: 6888027
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: May 3, 2005
    Assignee: Topotarget UK Limited
    Inventors: Clare J Watkins, Maria Rosario Romero-Martin, Kathryn G Moore, James Ritchie, Paul W Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E. S. Duffy
  • Publication number: 20050085515
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(?O)2NR1— and —NR1S(?O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(?O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 21, 2005
    Applicant: Topo Target UK Limited,
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn Moore, James Ritchie, Paul Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James Duffy
  • Patent number: 6828462
    Abstract: Unsaturated 1-Amino-alkylcyclohexane compounds which are systemically-active as NMDA, 5HT3, and nicotinic receptor antagonists, pharmaceutical compositions comprising the same, method of preparation thereof, and method of treating CNS disorders which involve disturbances of glutamatergic, serotoninergic, and nicotinic transmission, treating immunomodulatory disorders, and antimalaria, antitrypanosomal, anti-Borna virus, anti-HSV and anti-Hepatitis C virus activity.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: December 7, 2004
    Assignee: Merz Pharma GmbH & Co. KGAA
    Inventors: Markus Henrich, Wojciech Danysz, Christopher Graham Raphael Parsons, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons, Markus Gold
  • Publication number: 20040242590
    Abstract: New medical use for gamma-butyrobetaine is disclosed. Also disclosed are pharmaceutical compositions, containing gamma-butyrobetaine or combination thereof with 3-(2,2,2-trimethylhydrazinium)propionate or sildenafil for oral, parenteral, subcutaneous, transdermal, topical, sublingual, intrauretral, intranasal or rectal application, useful for stimulation of sexual activity and potency in mammals. The disclosed compositions, when applied orally for 6 weeks to non-narcotized male rats substantially increase their sexual activity, decreasing the arousal time, increasing the number of copulations and resultativeness of mounting attempts. When applied by intracavernous or intravenous mute said pharmaceutical compositions increase intracorporeal pressure and duration of erection, as well as restore stimulation-induced reflectory erection in narcotized animals.
    Type: Application
    Filed: March 4, 2004
    Publication date: December 2, 2004
    Inventors: Ivars Kalvinsh, Maris Veveris, Anatolijs Birmans
  • Publication number: 20040198830
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula(l) wherein: A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is an amide linkage selected from: —NR1C(═O)— and —C(═O)NR1—; R1 is an amido substituent; X is an ether heteroatom, and is —O— or —S—; and, R2 and R3 are each independently an ether group; and pharmaceutically acceptable salts, solvates, amides, esters, ether chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: July 28, 2003
    Publication date: October 7, 2004
    Inventors: Clare J. Watkins, Maria Rosario Romero-Martin, Paul W Finn, Ivars Kalvinsh, Einars Loza, Daina Lolya, Igor Starchenkov, Rasma M Bokaldere, Valentina Semenikhina, C. John Harris, James E.S. Duffy
  • Publication number: 20040092598
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the formula (1) wherein: A is an aryl group; Q1 is an aryl leader group having a backbone of at least 2 carbon atoms; J is an amide linkage selected from: —NR1C(═O)—and —C(═O)NR1—; R1 is an amido substituent; and, Q2 is an acid leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: August 27, 2003
    Publication date: May 13, 2004
    Inventors: Clare J. Watkins, Maria Rosario Romero-Martin, Kathryn G. Moore, James Ritchie, Paul W. Finn, Ivars Kalvinsh, Einars Loza, Igor Starchenkov, Klara Dikovska, Rasma Bokaldere, Vija Gailite, Maxim Vorona, Victor Andrianov, Daina Lolya, Valentina Seminkhina, Andris Amolins, C.John Harris, James E. S. Duffy
  • Publication number: 20040077726
    Abstract: This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S (═O)2NR1— and —NR1S(═O)2—; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is —S(═O)2NR1—, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
    Type: Application
    Filed: August 20, 2003
    Publication date: April 22, 2004
    Inventors: Clare Watkins, Maria Rosario Romero-Martin, Kathryn G Moore, James Ritchie, Paul W Finn, Ivars Kalvinsh, Einars Loza, Klara Dikovska, Vija Gailite, Maxim Vorona, Irina Piskunova, Igor Starchenkov, Victor Andrianov, C. John Harris, James E.S. Duffy
  • Publication number: 20040034055
    Abstract: Azabicyclic, azatricyclic and azaspirocyclic derivatives of aminocyclohexanes which are systemically-active as NMDA, 5HT3, and nicotinic receptor antagonists, pharmaceutical compositions comprising the same, method of preparation thereof, and method of treating CNS disorders which involve disturbances of glutamatergic, serotoninergic, and nicotinic transmission, treating immunomodulatory disorders, and antimalaria, antitrypanosomal, anti-Borna virus, anti-HSV and anti-Hepatitis C virus activity.
    Type: Application
    Filed: March 21, 2003
    Publication date: February 19, 2004
    Applicant: MERZ PHARMA GMBH & CO. KGAA
    Inventors: Christopher Graham Raphael Parsons, Markus Henrich, Wojciech Danysz, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons, Markus Gold, Maksims Vanejevs
  • Publication number: 20030166634
    Abstract: Unsaturated 1-Amino-alkylcyclohexane compounds which are systemically-active as NMDA, 5HT3, and nicotinic receptor antagonists, pharmaceutical compositions comprising the same, method of preparation thereof, and method of treating CNS disorders which involve disturbances of glutamatergic, serotoninergic, and nicotinic transmission, treating immunomodulatory disorders, and antimalaria, antitrypanosomal, anti-Borna virus, anti-HSV and anti-Hepatitis C virus activity.
    Type: Application
    Filed: November 6, 2002
    Publication date: September 4, 2003
    Inventors: Markus Henrich, Wojciech Danysz, Christopher Graham Raphael Parsons, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons, Markus Gold
  • Patent number: 6602862
    Abstract: Certain 1-aminoalkylcyclohexanes are anti-trypanosomiasis agents and trypanocides. Pharmaceutical compositions thereof for such purpose and method of making same, as well as a method-of-treating trypanosomiasis therewith.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: August 5, 2003
    Assignee: Merz Pharma GmbH & Co., KGAA
    Inventors: John M. Kelly, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons, Markus Gold
  • Patent number: 6071966
    Abstract: Certain 1-aminoalkylcyclohexanes are systemically-active uncompetitive NMDA receptor antagonists having rapid blocking/unblocking kinetics and strong voltage-dependency and are therefore useful in the alleviation of conditions resulting from disturbances of glutamatergic transmission giving them a wide range of utility in the treatment of CNS disorders involving the same, as well as in non-NMDA indications, due to their immunomodulatory, antimalarial, anti-Borna virus, and anti-Hepatitis C activities and utilities. Pharmaceutical compositions thereof and a method-of-treating conditions which are alleviated by the employment of an NMDA receptor antagonist, as well as the aforementioned non-NMDA indications, and a method for the preparation of the active 1-aminoalkylcyclohexane compounds involved.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: June 6, 2000
    Assignee: Merz + Co. GmbH & Co.
    Inventors: Markus Gold, Wojciech Danysz, Christopher Graham Raphael Parsons, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons
  • Patent number: 6034134
    Abstract: Certain 1-aminoalkylcyclohexanes are systemically-active uncompetitive NMDA receptor antagonists having rapid blocking/unblocking kinetics and strong voltage-dependency and are therefore useful in the alleviation of conditions resulting from disturbances of glutamatergic transmission giving them a wide range of utility in the treatment of CNS disorders involving the same, as well as in non-NMDA indications, due to their immunomodulatory, antimalarial, anti-Borna virus, and anti-Hepatitis C activities and utilities. Pharmaceutical compositions thereof and a method-of-treating conditions which are alleviated by the employment of an NMDA receptor antagonist, as well as the aforementioned non-NMDA indications, and a method for the preparation of the active 1-aminoalkylcyclohexane compounds involved.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: March 7, 2000
    Assignee: Merz + Co. GmbH & Co.
    Inventors: Markus Gold, Wojciech Danysz, Christopher Graham Raphael Parsons, Ivars Kalvinsh, Valerjans Kauss, Aigars Jirgensons
  • Patent number: 5965615
    Abstract: The invention relates to a hydroxyl radical scavenger and a remedy composition for a disease caused by a hydroxyl radical, which each comprise, as an active ingredient, a betaine represented by the formula (1):(CH.sub.3).sub.3 N.sup.+ (CH.sub.2).sub.n COO.sup.- (1)wherein n is an integer of 1-5, or an acid-addition salt or ester salt thereof. The betaine is useful in treating a disease caused by a hydroxyl radical, in particular, cardiopathy.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: October 12, 1999
    Assignees: Taiho Pharmaceutical Co., Ltd., Valsts zinatniska iestade - bezpelnas organizacija Latvijas organiskas sintezes instituts
    Inventors: Ivars Kalvinsh, Maris Veveris, Yasushi Abiko, Kiyotaka Tajima
  • Patent number: 5859056
    Abstract: A pharmaceutical composition containing 3-(2,2,2-trimethylhydrazinium)propionate and .gamma.-butyrobetaine with a pharmaceutically acceptable carrier for the treatment of cardiovascular diseases is disclosed. The composition may be for oral, parenteral, subcutaneous or rectal administration and exhibits low toxicity and a wide interval of therapeutic action safety.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: January 12, 1999
    Inventors: Ivars Kalvinsh, Maris Veveris
  • Patent number: 5776935
    Abstract: Pyridyl-phtalazin diones having the following formula: ##STR1## wherein R1 and R2 are selected from the group consisting of hydrogen, halogen, and methoxy or wherein R1 and R2 together form methylenedioxy, and pharmaceutically-acceptable salts thereof, and pharmaceutical compositions containing an effective glycine.sub.B antagonistic amount thereof, are useful in combatting neurological disorders associated with excitotoxicity and malfunctioning of glutamatergic neurotransmission in a living animal, including a human, in need thereof.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 7, 1998
    Assignee: Merz & Co. GmbH & Co.
    Inventors: Wojciech Danysz, Markus Gold, Ivars Kalvinsh, Christopher Graham Raphael Parsons, Irene Piskunova, Eugene Rozhkov