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Startup receives $4 million to develop drug delivery targeted to the back of the eye
Date:1/5/2012

eeper layer that provides nutrients to the rest of the eye. Preclinical research has demonstrated that fluid can flow between the two layers, where it can spread out to the entire eye, including structures such as the retina that are now difficult to reach.

By targeting this suprachoroidal space using microscopic needles, the researchers believe they can reduce trauma to the eye, make drugs more effective and reduce complications. The new delivery method could help advance a new series of drugs being developed to target the retina, choroid and other structures in the back of the eye.

"This is a significant advance in the field of ophthalmology," said Edelhauser. "Until now, it has been difficult to target drug delivery to specific locations within the eye. This new microneedle technology enables precise drug targeting to the suprachoroidal space and other locations within the eye."

In research reported in the January 2011 issue of the journal Pharmaceutical Research, the Georgia Tech-Emory team demonstrated for the first time that this technique can be used to deliver nanoparticles and microparticles to specific parts of the eye. In later research, they also showed that microneedle injections into the suprachoroidal space rapidly resulted in concentrations of drugs and particles that could be maintained for several months.

Between two and three million eye injections are made each year, many of them to treat age-related macular degeneration (AMD). The researchers believe that the microneedle-based technique could be useful for treating both AMD and glaucoma, as well as other ocular conditions related to diabetes.

The $4 million in funding for Clearside Biomedical will come from Hatteras Venture Partners, a venture capital firm based in Research Triangle Park, N.C. Hatteras focuses on seed and early-stage investments in companies developing products in biopharmaceutical, medical device, diagnostic and related human health areas.

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Contact: Holly Korschun
hkorsch@emory.edu
404-727-3990
Emory University
Source:Eurekalert  

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