The influenza A virus represents one of the greatest global human health risks. While vaccines provide significant protection from seasonal flu infections they still account for an estimated 36,000 deaths and 200,000 hospitalizations per year in the US alone. Furthermore, the inherent time involved in development, production and distribution of vaccines limits their potential efficacy against rapidly emerging outbreaks. Two classes of drugs have been approved for influenza prophylaxis and treatment. Alarmingly, the past decade has witnessed the emergence of drug resistant as well as novel 2009 pandemic (H1N1) and highly pathogenic (H5N1) strains of influenza A. Amantadine- resistance has become so widespread the amantadanes have become all but ineffective and some flu strains have already exhibited significant resistance to neuraminidase inhibitors. Optimally, as adopted for the treatment of other viral diseases, combination drug therapies would be used to provide the most effective prophylaxis and treatment and to inhibit the emergence of additional drug- resistances. Thus, there is an urgent need for new and more effective antiviral mono- and combination therapies. Here we provide an innovative approach to identify inhibitors of both amantadine-sensitive and -resistant forms of the M2 proton channel to provide novel broad-spectrum therapeutics. Using this approach we provide a platform for the identification of new inhibitory compounds acting at novel sites of a clinically validated influenza A target for the development of new mono- and combination antiviral drug therapies;a designated NIAID high priority area of interest.

Public Health Relevance

Over the past decade the emergence of a number of drug-resistant and/or highly pathogenic variants of influenza have dramatically increased the potential impact of influenza infection. This proposal details an innovative approach to identify much needed novel inhibitors and potential therapeutics for the prevention and treatment of influenza A infection for mono and combination drug therapies.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Small Business Innovation Research Grants (SBIR) - Phase I (R43)
Project #
5R43AI093035-02
Application #
8265946
Study Section
Special Emphasis Panel (ZRG1-IDM-Q (10))
Program Officer
Krafft, Amy
Project Start
2011-03-01
Project End
2013-03-30
Budget Start
2011-12-01
Budget End
2013-03-30
Support Year
2
Fiscal Year
2012
Total Cost
$222,059
Indirect Cost
Name
Arisan Therapeutics, Inc.
Department
Type
DUNS #
962535782
City
San Diego
State
CA
Country
United States
Zip Code
92121