Patents by Inventor Chrisantha H. Senanayake

Chrisantha H. Senanayake 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: 20030096019
    Abstract: The invention encompasses methods of using racemic and enantiomerically pure norfluoxetine, as well as pharmaceutical compositions, pharmaceutical unit dosage forms, and kits comprising racemic and enantiomerically pure norfluoxetine. In particular, the invention encompasses a method of inhibiting or reducing the production of PGE2. The invention further encompasses a method of treating or preventing inflammation in a patient, as well as a method of treating or preventing a disease or disorder such as, but not limited to, autoimmune diseases, arthritis, neurologic diseases, inflammatory diseases, fibromyalgia, pain resulting from inflammation, neuropathic pain, and cancer.
    Type: Application
    Filed: June 28, 2002
    Publication date: May 22, 2003
    Inventors: Mark G. Currie, Steven W. Jones, Chrisantha H. Senanayake, Zhi-Hiu Lu
  • Patent number: 6538034
    Abstract: Methods are disclosed for the treatment and prevention of obesity, weight gain, and eating disorders. The methods comprise the administration of racemic or optically pure sibutramine metabolites and pharmaceutically acceptable salts, solvates, and clathrates thereof.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: March 25, 2003
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Publication number: 20030018083
    Abstract: Methods of preparing, and compositions comprising, derivatives of (−)-venlafaxine are disclosed. Also disclosed are methods of treating and preventing diseases and disorders including, but not limited to, affective disorders such as depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease, epilepsy, cerebral function disorders, obesity and weight gain, incontinence, dementia and related disorders.
    Type: Application
    Filed: August 19, 2002
    Publication date: January 23, 2003
    Applicant: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Nandkumar N. Bhongle
  • Patent number: 6506753
    Abstract: The invention is directed to compositions comprising, and methods of using, racemic N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone in the treatment and prevention of diseases and conditions in mammals. The invention is further directed to novel methods of preparing N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: January 14, 2003
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Paul D. Rubin, Yaping Hong, Roger A. Bakale, Tingjian Xiang, Fran A. McConville
  • Publication number: 20020188029
    Abstract: Methods are disclosed for the treatment and prevention of disorders and conditions including, but are not limited to, erectile dysfunction, affective disorders, weight gain, cerebral functional disorders, pain, obsessive-compulsive disorder, substance abuse, chronic disorders, anxiety, eating disorders, migraines, and incontinence. The methods comprise the administration of a dopamine reuptake inhibitor and optionally an additional pharmacologically active compound. Pharmaceutical compositions and dosage forms are also disclosed that comprise a dopamine reuptake inhibitor and optionally an additional pharmacologically active compound. Preferred dopamine reuptake inhibitors are racemic or optically pure sibutramine metabolites and pharmaceutically acceptable salts, solvates, and clathrates thereof. Preferred additional pharmacologically active compounds include drugs that affect the central nervous system, such as 5-HT3 antagonists.
    Type: Application
    Filed: December 4, 2001
    Publication date: December 12, 2002
    Applicant: Sepracor Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Patent number: 6476078
    Abstract: Methods are disclosed for the treatment and prevention of male and female sexual function disorders which comprise a racemic or optically pure sibutramine metabolite and a phosphodiesterase inhibitor.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: November 5, 2002
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Publication number: 20020143016
    Abstract: The invention is directed to compositions comprising, and methods of using, racemic N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone in the treatment and prevention of diseases and conditions in mammals. The invention is further directed to novel methods of preparing N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone.
    Type: Application
    Filed: January 9, 2002
    Publication date: October 3, 2002
    Applicant: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Paul D. Rubin, Yaping Hong, Roger A. Bakale, Tingjian Xiang, Fran A. McConville
  • Patent number: 6458791
    Abstract: The invention is directed to compositions comprising, and methods of using, racemic N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone in the treatment and prevention of diseases and conditions in mammals. The invention is further directed to novel methods of preparing N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: October 1, 2002
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Paul D. Rubin, Yaping Hong, Roger A. Bakale, Tingjian Xiang, Fran A. McConville
  • Patent number: 6441048
    Abstract: Methods of preparing, and compositions comprising, derivatives of (−)-venlafaxine are disclosed. Also disclosed are methods of treating and preventing diseases and disorders including, but not limited to, affective disorders such as depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease, epilepsy, cerebral function disorders, obesity and weight gain, incontinence, dementia and related disorders.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: August 27, 2002
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Nandkumar N. Bhongle
  • Publication number: 20020086904
    Abstract: Methods of preparing, and compositions comprising, derivatives of (−)-venlafaxine are disclosed. Also disclosed are methods of treating and preventing diseases and disorders including, but not limited to, affective disorders such as depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease, epilepsy, cerebral function disorders, obesity and weight gain, incontinence, dementia and related disorders.
    Type: Application
    Filed: December 14, 2001
    Publication date: July 4, 2002
    Applicant: Sepracor Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Nandkumar N. Bhongle
  • Publication number: 20020052340
    Abstract: Methods and compositions are disclosed which utilize metabolites of bupropion for treating disorders ameliorated by inhibition of neuronal monoamine reuptake. Such disorders include, but are not limited to, erectile dysfunction, affective disorders, cerebral function disorders, cigarette smoking, and incontinence. The invention further discloses methods of making optically pure bupropion metabolites.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 2, 2002
    Inventors: Thomas P. Jerussi, John R. McCullough, Chrisantha H. Senanayake, Qun K. Fang
  • Publication number: 20020019398
    Abstract: The invention is directed to compositions comprising, and methods of using, racemic N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone in the treatment and prevention of diseases and conditions in mammals. The invention is further directed to novel methods of preparing N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone.
    Type: Application
    Filed: June 11, 2001
    Publication date: February 14, 2002
    Applicant: SEPRACOR, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Paul D. Rubin, Yaping Hong, Roger A. Bakale, Tingjian Xiang, Fran A. McConville
  • Patent number: 6342533
    Abstract: Methods of preparing, and compositions comprising, derivatives of (−)-venlafaxine are disclosed. Also disclosed are methods of treating and preventing diseases and disorders including, but not limited to, affective disorders such as depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease, epilepsy, cerebral function disorders, obesity and weight gain, incontinence, dementia and related disorders.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: January 29, 2002
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake
  • Patent number: 6342496
    Abstract: Methods are disclosed which utilize metabolites of bupropion for treating disorders ameliorated by inhibition of neuronal monoamine reuptake. Such disorders include, cerebral function disorders, cigarette smoking, and incontinence.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: January 29, 2002
    Assignee: Sepracor Inc.
    Inventors: Thomas P. Jerussi, John R. McCullough, Chrisantha H. Senanayake, Qun K. Fang
  • Publication number: 20020010198
    Abstract: Methods are disclosed for the treatment and prevention of disorders and conditions such as, but are not limited to: eating disorders; weight gain; obesity; irritable bowel syndrome; obsessive-compulsive disorders; platelet adhesion; apnea; affective disorders such as attention deficit disorders, depression, and anxiety; male and female sexual function disorders; restless leg syndrome; osteoarthritis; substance abuse including nicotine and cocaine addiction; narcolepsy; pain such as neuropathic pain, diabetic neuropathy, and chronic pain; migraines; cerebral function disorders; chronic disorders such as premenstrual syndrome; and incontinence.
    Type: Application
    Filed: January 29, 2001
    Publication date: January 24, 2002
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Patent number: 6339106
    Abstract: Methods are disclosed for the treatment and prevention of sexual. The methods comprise the administration of a dopamine reuptake inhibitor and optionally an additional pharmacologically active compound. Pharmaceutical compositions and dosage forms are also disclosed that comprise a dopamine reuptake inhibitor and optionally an additional pharmacologically active compound. Preferred dopamine reuptake inhibitors are racemic or optically pure sibutramine metabolites and pharmaceutically acceptable salts, solvates, and clathrates thereof. Preferred additional pharmacologically active compounds include drugs that affect the central nervous system, such as 5-HT3 antagonists.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: January 15, 2002
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Patent number: 6339086
    Abstract: The invention is directed to compositions comprising, and methods of using, racemic N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone in the treatment and prevention of diseases and conditions in mammals. The invention is further directed to novel methods of preparing N-desmethylzopiclone, optically pure (+)-N-desmethylzopiclone, and optically pure (−)-N-desmethylzopiclone.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: January 15, 2002
    Assignee: Swpracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Paul D. Rubin, Fran A. McConville
  • Patent number: 6331571
    Abstract: Methods are disclosed for the treatment and prevention of affective disorders with racemic or optically pure sibutramine metabolites and pharmaceutically acceptable salts, solvates, and clathrates thereof.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: December 18, 2001
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake, Qun K. Fang
  • Patent number: 6197828
    Abstract: Methods of preparing, and compositions comprising, derivatives of (+)-venlafaxine are disclosed. Also disclosed are methods of treating and preventing diseases and disorders including, but not limited to, affective disorders such as depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease, epilepsy, cerebral function disorders, obesity and weight gain, incontinence, dementia and related disorders.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Sepracor, Inc.
    Inventors: Thomas P. Jerussi, Chrisantha H. Senanayake
  • Patent number: 5817823
    Abstract: The present invention is a method of preparing 2-substituted imidazoles from readily available imidazoles having a leaving group in the 2-position, by alkylating the imidazole under mild conditions to afford a 3-N-alkylated imidazolium salt; and coupling the imidazolium salt with a nucleophile also under mild conditions to afford a 2-substituted 3-N-alkylated imidazolium salt. The reaction product can optionally be isolated and purified. The 2-substituted 3-N-alkylated imidazolium salt is hydrolyzed to afford a 2-substituted imidazole. Alternatively, the imidazole is coupled with a nucleophile in the presence of fluoride ion to provide a 2-substituted imidazole.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: October 6, 1998
    Assignee: Sepracor Inc.
    Inventors: Yaping Hong, Roger P. Bakale, Chrisantha H. Senanayake