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Experimental Drug May Work Against Hepatitis C
Date:3/27/2013

By Maureen Salamon
HealthDay Reporter

WEDNESDAY, March 27 (HealthDay News) -- An experimental therapy for hepatitis C -- a "silent killer" linked to liver cancer and cirrhosis -- has shown promise in tamping down virus levels in early trials.

Experts caution, however, that it's too soon to know if the injectable drug will someday gain a standing among emerging oral medications against the disease.

New research suggests that the drug, miravirsen, could potentially be part of a drug "cocktail" that manages the hepatitis C virus in much the same way as similar combinations have transformed HIV/AIDS from a death sentence into a chronic, manageable condition.

Miravirsen suppresses molecules the hepatitis C virus needs to reproduce. The drug decreased viral loads by about 500-fold at the highest doses used in a small, phase 2 study by an international group of researchers. Drug resistance, a common problem with other hepatitis C medications, did not develop among patients taking miravirsen.

A phase 2 trial evaluates a drug's effectiveness while continuing to assess its safety.

"This is the first real clinical study of this approach and the results are encouraging," said Dr. Judy Lieberman, chairwoman of cellular and molecular medicine at Boston Children's Hospital. "What's exciting to me is that there doesn't seem to be any drug resistance developing. If there's a way to develop a drug cocktail that doesn't require a half a year of treatment ... that would be really exciting, but it's too early to tell."

Lieberman was not involved in the research but co-wrote an editorial accompanying the new study in the March 27 issue of the New England Journal of Medicine.

Hepatitis C is one form of liver disease and affects about 170 million people worldwide, according to study background information. It's transmitted by shared needles or, less frequently, through sex. Often symptomless, the in
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