Fiscal Year:
2001
Title:
ANTAGONIST OF A2B ADENOSINE RECEPTORS FOR ASTHMA
Agency:
HHS
Contract:
N/A
Award Amount:
$100,000.00
Abstract:
DESCRIPTION: (Adapted from the Investigator's Abstract): Adenosine administered
as an aerosol to asthmatics causes bronchoconstriction, while in non-asthmatics
adenosine causes bronchodilation. This occurs because the activation of A2B
adenosine receptors on sensitized mast cells triggers degranulation, releasing
histamine, leukotrienes, and other allergic mediators. A2B adenosine receptors
are blocked by theophylline, a xanthine that is effective in treating asthma.
However, theophylline is a non-selective antagonist of all four adenosine
receptor subtypes and produces side effects due primarily to A1 receptor
blockade, including insomnia and diuresis. The incidence of asthma is
increasing and current treatment options are limited. New drugs that are potent
and selective antagonists of A2B adenosine receptors have great potential for
the treatment of asthma and other allergic diseases. Adenosine Therapeutics,
LLC owns the first potent and selective A2B antagonists. The purpose of this
phase I proposal is to attempt to identify related structures that have
improved aqueous solubility. A candidate compound will be evaluated in
pharmacokinetic studies in dogs. Adenosine Therapeutics will also prepare mast
cells from canine and human lung and determine if candidate compounds can
prevent their degranulation. These studies are preliminary to a phase II SBIR
study in which candidate compounds will be evaluated in dog models of asthma.
PROPOSED COMMERCIAL APPLICATION:
Potent and selective antagoists of A2B adenosine receptors have great
commercial potential for the treatment of asthma and other allergic or autoimmune
diseases.
Principal Investigator:
Robert A. Figler
Small Business Information at Submission:
ADENOSINE THERAPEUTICS, LLC
300 PRESTON AVE, 5TH FLOOR CHARLOTTESVILLE, VA 22902
EIN/Tax ID:
541932209
DUNS:
N/A
Number of Employees:
N/A
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No