Patents by Inventor Christopher Helal

Christopher Helal 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: 20070155779
    Abstract: The invention pertains to bicyclic heteroaryl compounds that serve as effective phosphodiesterase (PDE) inhibitors The invention also relates to compounds which are selective inhibitors of PDE-10. The invention further relates to intermediates for preparation of such compounds; pharmaceutical compositions comprising such compounds; and the use of such compounds in methods for treating certain central nervous system (CNS) or other disorders. The invention relates also to methods for treating neurodegenerative and psychiatric disorders, for example psychosis and disorders comprising deficient cognition as a symptom.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 5, 2007
    Inventors: Patrick Verhoest, Christopher Helal
  • Publication number: 20060154931
    Abstract: The invention pertains to heteroaromatic compounds that serve as effective phosphodiesterase (PDE) inhibitors. In particular, the invention relates to said compounds which are selective inhibitors of PDE10. The invention also relates to intermediates for preparation of said compounds; pharmaceutical compositions comprising said compounds; and the use of said compounds in a method for treating certain central nervous system (CNS) or other disorders.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 13, 2006
    Inventors: Patrick Verhoest, Christopher Helal, Dennis Hoover, John Humphrey
  • Publication number: 20050282816
    Abstract: The present invention relates to novel pyrazinylmethyl-lactam derivatives, that are compounds of the formula I wherein R1 is a group of the formula G1 or G2 depicted below, wherein R1, R3, R6, R13 X, a, n and m are as defined herein, their pharmaceutically acceptable salts, and pharmaceutical compositions which include selective agonists, antagonists, inverse agonists and partial agonists of serotonin 1 (5-HT1) receptors, specifically, of one or both of the 5-HT1A and 5-HT1B receptors. The compounds of the invention are useful in treating or preventing depression, anxiety, obsessive compulsive disorder (OCD) and other disorders for which a 5-HT1 agonist or antagonist is indicated.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 22, 2005
    Inventor: Christopher Helal
  • Publication number: 20050256112
    Abstract: The present invention relates to a pharmaceutical composition for treating, for example, a disorder or condition selected from the group consisting of hypertension, depression, generalized anxiety disorder, phobias, posttraumatic stress disorder, avoidant personality disorder, sexual dysfunction, eating disorders, obesity, chemical dependencies, cluster headache, migraine, pain, Alzheimer's disease, obsessive-compulsive disorder, panic disorder, memory disorders, Parkinson's diseases, endocrine disorders, cerebellar ataxia, gastrointestinal tract disorders, negative symptoms of schizophrenia, premenstrual syndrome, Fibromyalgia Syndrome, stress incontinence, Tourette syndrome, trichotillomania, kleptomania, male impotence, cancer, chronic paroxysmal hemicrania and headache in a mammal, preferably a human, comprising (i) an atypical antipsychotic or a pharmaceutically acceptable salt thereof, (ii) a 5-HT1B receptor antagonist or a pharmaceutically acceptable salt thereof, wherein the 5-HT1B receptor antagon
    Type: Application
    Filed: May 11, 2005
    Publication date: November 17, 2005
    Inventors: Michael Brodney, Christopher Helal, Brian Bronk, Spiros Liras
  • Publication number: 20050245521
    Abstract: The present invention relates to novel benzyl(idene)-lactam derivatives, compounds of the formula I wherein R1 is a group of the formula G1 or G2 depicted below, wherein R1, R3, R6, R13 X, a, n and m are as defined herein, their pharmaceutically acceptable salts, and pharmaceutical compositions which include selective antagonists, inverse agonists and partial agonists of serotonin 1 (5-HT1) receptors, specifically, of one or both of the 5-HT1A and 5-HT1B receptors. The compounds of the invention are useful in treating or preventing depression, anxiety, obsessive compulsive disorder (OCD) and other disorders for which a 5-HT1 agonist or antagonist is indicated and have reduced potential for cardiac side effects, in particular QTc prolongation.
    Type: Application
    Filed: March 17, 2005
    Publication date: November 3, 2005
    Inventors: Michael Brodney, Stephane Caron, Christopher Helal, Jeffrey Raggon, Yong Tao, Nga Do
  • Publication number: 20050209297
    Abstract: The invention provides compounds of formula 1 wherein R1, R2, R3, and R4 are as defined, and their pharmaceutically acceptable salts. Compounds of formula 1 are indicated to have activity inhibiting cdk5, cdk2, and GSK-3. Pharmaceutical compositions and methods comprising compounds of formula 1 for treating and preventing diseases and conditions comprising abnormal cell growth, such as cancer, and neurodegenerative diseases and conditions and those affected by dopamine neurotransmission.
    Type: Application
    Filed: May 18, 2005
    Publication date: September 22, 2005
    Inventors: Mark Sanner, Christopher Helal, Daniel Kung