In the U.S., chronic sinusits is associated with over 40 million visits to physicians and health care providers each year. Sinusitis is diagnosed based on clinical history which is difficult to correctly ascertain, and hence misdiagnosis leads to both over-treatment (i.e. antibiotics) and under-treatment (i.e. misdiagnosis as allergies or migraine). Praxis Biosciences, LLC aims to develop and deliver a very low-cost optical imaging tool for quick and simple assessment of sinusitis suitable for use by both primary care doctors and physician extenders. In this proposal, we will first improve on the design of a novel validated prototype developed at the Beckman Laser Institute at UC Irvine by optimizing device form factor, robustness, and optical design. Our device is based upon the principles of near-infrared (NIR) trans-illumination but exploits the unique near infrared optical properties of living tissue to generate substantially greater signal yield. In the second phase of the fast-track, we will validate its efficacy of this market-ready optimized device via a clinical study with Ear, Nose &Throat (ENT) specialists and primary care physicians. The proposed low-cost optical imaging tool will be able to provide means to better identify patients with acute sinusitis and then monitor the response to therapy in primary care settings. Ultimately, our device will help reduce the health-care costs related by optimizing and streamlining diagnosis and treatment.

Public Health Relevance

In the US, chronic sinusitis affects approximately 32 million persons each year and accounts for 11.6 million visits to physicians'offices. Current diagnostic methods in primary care settings suffer from relatively low sensitivity and leads to over 40% of false negative findings. The proposed product based on NIRS imaging method will enable primary physicians to make simple and quick diagnosis of sinusitis.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Small Business Innovation Research Grants (SBIR) - Phase II (R44)
Project #
5R44DC012018-03
Application #
8510620
Study Section
Special Emphasis Panel (ZRG1-SBIB-T (10))
Program Officer
Miller, Roger
Project Start
2011-09-07
Project End
2014-06-30
Budget Start
2013-07-01
Budget End
2014-06-30
Support Year
3
Fiscal Year
2013
Total Cost
$385,183
Indirect Cost
Name
Praxis Biosciences, LLC
Department
Type
DUNS #
965542124
City
Irvine
State
CA
Country
United States
Zip Code
92617