New Hepatitis B Oral Treatment Blocks Viral Integration and Progression with Lawrence Blatt Aligos Therapeutics

Lawrence Blatt, Chairman, President, and CEO of Aligos Therapeutics,  describes the current gaps in treating the hepatitis B virus and how the disease can potentially lead to end-stage liver disease and liver cancer. Current therapies were initially developed for HIV and can suppress the virus but not eliminate or prevent the disease. The lead Aligos drug candidate blocks all steps of viral replication and prevents the virus from integrating into infected liver cells, where it can activate cancer-causing genes.

Lawrence explains, "Hepatitis B virus is actually the most prevalent chronic viral infection in the world that makes patients very ill, and they can actually die from this disease. There's almost 250 million, a little bit more than 250 million people infected with Hepatitis B. And it really affects people in all walks of life across many different demographic groups. So there's not a typical HPV patient out there."  

"So HBV needs to be treated for life, currently very similar to HIV, and actually HBV and HIV share common features. And early on in the HIV epidemic, patients who were treated with a class of drug called nucleoside analogs, who were also coinfected with HBV, we saw responses to those drugs. So the drugs that worked in HIV, called nucleoside or nucleotide analogs that were purposely built for HIV, worked against HBV, and they worked to a certain degree. They can suppress the virus, but they can't eliminate the virus, and they can't completely suppress all the components of the viral lifecycle that end up causing disease."  

"So we're not going to affect the damage that's there initially, but we're blocking that damage from occurring. Now, one thing that's really interesting is that our livers are regenerative organs. So the liver is constantly replacing itself with new healthy hepatocytes or cells that make up the liver. And so if you could block the ongoing disease processes, the liver will have time to heal itself and eventually reverse the scarring. And that's really the only organ in our body that can regenerate. If you get scarring on your lungs or any other part of your body, that is for life. But in the liver, if you block the disease processes, you can reverse that scarring. So it's a very important and unique finding." 

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