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Reuters Health Information (2012-05-31): Bristol urges combo study with Gilead hepatitis drug

Drug & Device Development

Bristol urges combo study with Gilead hepatitis drug

Last Updated: 2012-05-31 19:45:04 -0400 (Reuters Health)

(Reuters) - Bristol-Myers Squibb Co renewed its call for biotechnology company Gilead Sciences Inc to test one of its hepatitis C drugs in late-stage trials alongside Bristol's own promising medicine, following stellar results from a mid-stage trial that combined the experimental products.

Bristol's daclatasvir is from a new class of drugs known as NS5A inhibitors. Gilead's GS-7977 is a nucleotide polymerase inhibitor. Both are designed to block enzymes essential to replication of the hepatitis C virus.

Bristol-Myers Chief Executive Lamberto Andreotti, speaking on Thursday at the Sanford Bernstein Strategic Decisions Conference in New York, said patients and both drugmakers stand to benefit if combined phase III trials of the two medicines are pursued.

"We have a different point of view about whether to enter phase III (trials) with that combination," Andreotti said. "We believe for both patients and companies, it is better to move forward" in the short term.

But Andreotti said Gilead instead seemed intent on looking "in-house" -- focusing instead on combinations of its own products. Gilead officials could not immediately be reached to comment.

Andreotti said there was a "huge unmet need" for better treatments of hepatitis C.

On April 19 Gilead released data from a mid-stage trial showing profound benefits of combining its GS-7977 with Bristol's daclatasvir, in particular, a 100% response rate in previously untreated patients with the most common form of hepatitis C.

At the time, Bristol said Gilead had balked at further collaboration on the combination under study, which began when 7977 was owned by Pharmasset.

The results were accomplished without interferon or ribavirin.

Instead of working with Bristol-Myers, Gilead is forging ahead with a study of 7977 in combination with its own experimental NS5A inhibitor. In the meantime, Bristol-Myers is testing daclatasvir with a drug similar to 7977 that it acquired with its $2.5 billion purchase of Inhibitex, as well as with other experimental drugs in its development pipeline.

 
 
 
 
                 
 
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