Two BC based Clinical Trials Examined at the Liver Meeting

Two BC based Clinical Trials Examined at the Liver MeetingThis post examines two BC based clinical trials BC for hep C treatments that were presented at the Liver Meeting 2016 earlier this month.

Clinical Trial Abstract #60 – Impact of drug use and opioid substitution therapy on hepatitis C reinfection: The BC Hepatitis Testers Cohort by Nazrul Islam, et al.

Summary: This clinical trial identified the risk factors that may lead to hep C reinfection by looking at those tested for the virus in BC between 1990-2013. It looked at data about their medical visits, hospitalizations, and prescription drugs.  Those who were able to clear the virus on their own were included in this study. The study’s results showed that 11.8% of those who cleared the virus on their own were reinfected within the study’s 19 year time period. This rate was higher in this group than in those who had cleared the virus through treatment. However, this group also had a higher proportion of people who recently injected drugs. Using injected drugs made the risk of reinfection higher, where as, using opioid substitution therapy (OST) reduced the hep C reinfection risk. Also, being younger was seen to increase one’s of reinfection risk, as well as, being co-infected with HIV.  Whereas, being female and being infected with hep B lowered one’s chances of reinfection. From these findings, the study concluded that treatment should be combined with harm reduction programs.

Clinical Trial Abstract #175 – The impact of sustained virological response to HCV infection on long term risk of hepatocellular carcinoma: The BC Hepatitis Testers Cohort by Naveed Z. Janjua, et al.

Summary: The risk of hepatocellular carcinoma (HCC), the most common type of liver cancer, after being cured of hep C in North America hasn’t been looked at in depth. This study assessed the effect of sustained virologic response (hep C cure) on the risk of HCC among a large Canadian population base, by examining the same patient database as the above clinical trial. RESULTS: It found that the risk of HCC was higher in those who weren’t cured than those who were (1.1/1000 person-yr(PY) in the SVR group and 7.2/1000 PY in the no-SVR group). It found that the risk of developing HCC was higher in those with liver cirrhosis, who were older, male, had hep C genotype 3 vs 1, and drank alcohol. The HCC incidence post treatment increase was steeper in the no-SVR vs the SVR group, but that SVR (cure) doesn’t eliminate the risk of HCC.

 The Liver Meeting 2016

The Liver Meeting 2016, the American Association for the Study of Liver Diseases (AASLD)‘s 67th annual meeting, was held November 11th – 15th. Last year’s meeting drew more than 9,500 international hepatologists and hepatology health professionals to San Francisco to discuss the latest treatments and research for liver diseases. This year, Boston, Massachusetts, hosted the meeting and, as always, it was exciting.

More information about The Liver Meeting 2016 or these and other studies can be found in our blog post The Liver Meeting 2016 Hep C Abstract Highlights (Part2) or on the American Association for the Study of Liver Diseases (AASLD)’s website.