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New topical approach to treating nail fungus circumvents problems with current therapy
Date:10/28/2008

WASHINGTON, D.C. (October 27, 2008) A novel topical therapy for nail fungus, NB-002, has demonstrated a new topical approach to healing nail fungus by penetrating skin pores and diffusing through the skin that surrounds the entire nail plate, according to a study conducted by NanoBio Corporation.

The data represent a unique approach to treating nail fungus (onychomycosis), which resists topical therapies because they cannot penetrate the nail and access the site of infection. The results were reported this morning at the 48th annual Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC)/Infectious Diseases Society of America (IDSA) 46th annual meeting in Washington, D.C.

"In testing NB-002 on human cadaver skin, we have demonstrated that the lotion permeates and then laterally diffuses across tissue plains in the epidermis and the dermis to more than 1 centimeter away from the site of application," said Susan Ciotti, Ph.D., director of formulations and research and development, and presenting author of the data.

"The average great toenail measures 22 millimeters across, so we are able to deliver NB-002 across the entire span of an infected human large toenail, a huge advance in the treatment of onychomycosis," Ciotti said.

Because of its novel mode of penetration and diffusion, NB-002 is able to achieve 50 times the minimum drug concentration required to kill the fungus in the very center of the nail bed. Only 4 micrograms per gram of tissue are required for NB-002 to kill fungal infections.

Newer, more effective therapies for nail fungus are important because onychomycosis remains a large unmet medical need, according to the NanoBio scientists. Oral systemic medications are plagued by serious hepatic and cardiac toxicity concerns, while current topical medications are not effective because they are unable to penetrate to the site of infection.

"The safe and efficient delivery of NB-002 ma
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Contact: Becky Levine
blevine@medthink.com
919-786-4918
MedThink Communications
Source:Eurekalert

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