Abstract: Amide derivatives of Formula (Ia) and pharmaceutical compositions thereof that modulate the activity of the histamine H3 receptor. Compounds of the present invention and pharmaceutical compositions thereof are directed to methods useful in the treatment of histamine H3-associated disorders, such as cognitive disorders, epilepsy, brain trauma, depression, obesity, disorders of sleep and wakefulness such as excessive daytime sleepiness, narcolepsy, shift-work sleep disorder, drowsiness as a side effect from a medication, maintenance of vigilance to aid in the completion of tasks and the like, cataplexy, hypersomnia, somnolence syndrome, jet lag, sleep apnea and the like, attention deficit hyperactivity disorder (ADHD), schizophrenia, allergies, allergic responses in the upper airway, allergic rhinitis, nasal congestion, dementia, Alzheimer's disease, pain and the like.

Abstract: The present invention relates to certain biphenyl sulfonamide derivatives of Formula (Ia) and pharmaceutical compositions thereof that modulate the activity of the histamine H3-receptor. Compounds of the present invention and pharmaceutical compositions thereof are directed to methods useful in the treatment of histamine H3-associated disorders, such as, cognitive disorders, epilepsy, brain trauma, depression, obesity, disorders of sleep and wakefulness such as narcolepsy, shift-work syndrome, drowsiness as a side effect from a medication, maintenance of vigilance to aid in completion of tasks and the like, cataplexy, hypersomnia, somnolence syndrome, jet lag, sleep apnea and the like, attention deficit hyperactivity disorder (ADHD), schizophrenia, allergies, allergic responses in the upper airway, allergic rhinitis, nasal congestion, dementia, Alzheimer's disease and the like.

Abstract: The present invention relates to certain N-biaryl and N-arylheteroaryl 2-substituted piperazine derivatives of Formula (Ia) that are modulators of the 5HT2C receptor. Accordingly, compounds of the present invention are useful for the treatment of 5HT2C receptor associated diseases or disorders, such as, obesity, Alzheimer Disease, erectile dysfunction and related disorders.

Abstract: The present invention relates to certain biarylz and arylheteroaryl piperazine derivatives of Formula (Ia) that are modulators of the 5HT2c receptor. Accordingly, compounds of the present invention are useful for the treatment of 5HT2c receptor associated diseases or disorders, such as, obesity, Alzheimer Disease, erectile dysfunction and related disorders.