ACADIA Discovers Novel Small Molecule Leads for the V2 Vasopressin Receptor
Chemical-Genomics Platform Enables Discovery Of Small Molecule Activators
Of Numerous Peptide GPCRs
SAN DIEGO, CA and COPENHAGEN, DK, September 26, 2002 - ACADIA Pharmaceuticals
announced today the discovery of small molecule lead chemistries for the V2
Vasopressin receptor. The V2 Vasopressin receptor is the major control mechanism
for the production of urine. Activation of this receptor by ACADIA's lead compounds
resulted in a sustained decrease in urine production in preclinical animal models.
"While V2 peptides that require injection or nasal application have long
been used to treat diabetes insipidus, bleeding disorders, and nocturnal uresis
(bed wetting), an orally active drug may address much broader markets, potentially
including incontinence," said Bo-Ragnar Tolf, Ph.D., ACADIA's Vice President
of Chemistry. "ACADIA's small non-peptide molecules have very attractive
drug characteristics and provide us with the potential to develop the first
oral medication that targets V2."
ACADIA's proprietary V2 chemistry is a product of its chemical-genomics efforts.
ACADIA is using functional assays to broadly screen the members of the nuclear
and G-protein coupled receptor ("GPCR") families, searching for novel
chemistries that act as agonist, antagonists, and inverse agonists. More than
100 of these targets have been screened, with novel chemistries identified for
more than 70 targets. The V2 small molecule chemistry is an example of a non-peptide
activator of a peptide hormone receptor.
"V2 is just one of the examples where we have found exciting small molecules
that activate peptide GPCRs," said Mark R. Brann, Ph.D., ACADIA's President
and CSO. "In the upcoming issue of the Journal of Medicinal Chemistry,
we report the structure of our small molecule activator of the Urotensin-II
receptor, another peptide hormone receptor. We have also discovered the first
small molecule activators of the PAR-2 receptor. Our proven ability to consistently
discover the first small molecule activators of peptide receptors runs in the
face of the pharmaceutical dogma that holds that peptide receptors require complex
chemistries that mimic the structure of the natural hormones. The latter are
often referred to as peptoids. Our unique small molecule chemistries have obvious
commercial advantages in terms of bioavailability and future synthetic opportunities
relative to the peptides and peptoids."
ACADIA is a drug discovery and development company that efficiently discovers small molecule drug candidates using its proprietary chemical-genomics platform. ACADIA's uniquely productive platform integrates genomics, chemistry and biology to rapidly identify and validate drug targets while simultaneously discovering chemistries specific to those targets. ACADIA has successfully applied its chemical-genomics platform to generate a broad discovery pipeline that includes advanced programs directed at major diseases, including psychosis, chronic pain, and glaucoma. ACADIA's corporate headquarters as well as its genomics and biological research facilities are located in San Diego, California and its chemistry research facilities are located in Copenhagen, Denmark.
Douglas E. Richards, VP of Business Development
Bo-Ragnar Tolf, Ph.D., VP of Chemistry and
Managing Director of ACADIA Pharmaceuticals A/S