'The Australian anti-infective firm Avexa has shifted the focus of its drug discovery alliance with China’s Targetdrug away from HIV and towards hepatitis C, where it sees significant unmet medical need. The two companies will work together to develop inhibitors of hepatitis C viral replication, although Avexa would not divulge the structure or precise target of the drug candidates. “We don’t want to reveal too much at the moment, but can say that these are novel,” CEO Dr Julian Chick commented to Scrip. Melbourne-based Avexa has already been working with Targetdrug, a private drug discovery firm based in Shanghai, on CCR5 inhibitors for HIV, under a 2006 deal that gave Avexa an exclusive option to global rights (outside China) to the lead compound, nifeviroc. Dr Chick stressed that the decision to put this on the back burner for the time being was not prompted by any problems with the programme, “which itself is going very well”, but rather a desire to see how the competitive field pans out in terms of regulatory approach and clinical adoption. The class has seen some problems, with GlaxoSmithKline’s aplaviroc (licensed from Ono) being dropped at the Phase II stage due to liver toxicity concerns in 2005, for example. Pfizer was the first to market with the launch of maraviroc (as Selzentry) in the US last September, while Schering-Plough is among the other contenders in clinical development with vicriviroc. Nifeviroc is structurally unrelated to failed CCR5 blockers and Dr Chick said his understanding was that Targetdrug intends to keep taking the compound forward. The new hepatitis C alliance will see Avexa gain similar worldwide rights outside China to all Targetdrug’s programmes in the field, although Dr Chick said it was too early to disclose likely timings for the selection of a lead candidate and clinical trials. He pointed to the World Health Organization’s estimate of 180 million infections worldwide, and to the fact that only half of patients benefit from current therapy. Datamonitor estimates that the hepatitis C market will grow to $8.8 billion in 2015. Avexa also has in-house research programmes on antibiotics and HIV integrase inhibitors, for which it has now identified lead compounds, and is also enrolling patients in an international Phase III trial with apricitabine, the nucleoside reverse transcriptase inhibitor for HIV/AIDS it acquired from Shire. Recruitment for the first phase of this programme is expected to complete in the third quarter at around 65 sites, including in North America and Europe.'
Hope this info helps. It is difficult trying to work out what AVX is all about. There seems to be two main areas of focus: HIV and HCV (Hepatitis C Virus). Under the HIV focus there are the suite of drugs being developed - ATC, VRI & HIV Integrase.
AVX Price at posting:
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