Gilead hepatitis C drug proves itself in key study

Thu Apr 19, 2012 4:03pm IST

Related Topics

Stocks

   

(Reuters) - An experimental hepatitis C drug acquired by Gilead Sciences Inc when it paid nearly $11 billion to buy Pharmasset has produced encouraging results in a closely-watched clinical trial, results of which were released in Barcelona.

The U.S. company said that of 25 patients with genotype 1 hepatitis who completed 12 weeks of treatment with a combination of GS-7977 and the older antiviral ribavirin (RBV), 88 percent still had undetectable levels of virus four weeks after completion of treatment.

Three patients in the study, known as ELECTRON, experienced viral relapse.

A second study, QUANTUM, which contained more difficult to treat patients, produced less impressive results, with 59 percent of patients having undetectable virus levels.

Mark Schoenebaum, an analyst at ISI Group, said the ELECTRON data was better than expected, since most analysts had expected a result around 50 percent, while the QUANTUM result was about in-line with expectations.

The market for treating hepatitis C has burgeoned in the last year with two new breakthrough treatments approved for sale in the United States and the promise of even better medicines in the pipeline, like the Gilead drug GS-7977.

GS-7977 works by blocking an enzyme essential to the replication of the hepatitis C virus. It is one of a new class of treatments designed to be given without interferon, which helps boost the body's immune system but can also cause debilitating, flu-like symptoms.

Vertex Pharmaceuticals Inc's new hepatitis C drug Incivek and Merck & Co's Victrelis both won U.S. approval last year.

(Reporting by Ben Hirschler; Editing by Mark Potter)

FILED UNDER:
Comments (0)
This discussion is now closed. We welcome comments on our articles for a limited period after their publication.

  • Most Popular
  • Most Shared

Bullying Impact

Reuters Showcase

A Little Help

A Little Help

Researchers "buzz" the brain to speed up learning.  Video 

Disease Outbreak

Disease Outbreak

WHO says West African Ebola outbreak to last 2-4 months.  Full Article 

Healthy Food

Healthy Food

For teen girls, fruits and veggies linked to lower risk of breast condition.  Full Article 

Milk Effect

Milk Effect

Drinking milk may slow women's knee arthritis.  Full Article 

Rising Obesity

Rising Obesity

U.S. childhood obesity rates have increased since 1999: study.  Full Article 

Quality Check

Quality Check

Just because it's sweet and sticky doesn't mean it's 'honey': FDA.  Full Article 

Reuters India Mobile

Reuters India Mobile

Get the latest news on the go. Visit Reuters India on your mobile device.   Full Coverage