What does undetectable hep C mean?
Undetectable viral load. At the end of the planned course of treatment, which is generally 8 to 12 weeks , an undetectable viral load means that treatment can be stopped. A sustained virologic response is when the most sensitive tests find no trace of HCV 12 weeks after stopping treatment.
What is RVR in Hep C?
Background: Rapid virologic response (RVR), defined as an undetectable serum hepatitis C virus (HCV) RNA level at week 4 of treatment, is emerging as an important milestone in the treatment of patients who have chronic hepatitis C by use of pegylated interferon-alfa and ribavirin–the current standard of care.
What is end of treatment response?
If a person does not have an EVR, their chance of SVR is very low (1-4%). Usually, HCV treatment is discontinued in people who do not have an EVR. ETR (End-of-Treatment Response): ETR means that there is no detectable hepatitis C virus in the blood at completion of HCV treatment.
What does SVR mean in Hep C?
What is sustained virologic response (SVR)? Sustained virologic response means that the hepatitis C virus is not detected in the blood 12 weeks or more after completing treatment.
What is a normal hep C range?
Normal range for this assay is “Not Detected”. The quantitative range of this assay is 10 – 100,000,000 IU/mL (1.0 – 8.0 log IU/mL).
Can hep C antibodies but no virus?
Hepatitis C is a viral liver infection that can become chronic. Some people have antibodies associated with the virus in their blood but do not have an active hepatitis C infection. These antibodies can lead to false-positive results on blood tests for an active infection.
What is SVR in blood test?
SVR stands for sustained virologic response. It means that 12 weeks or more after you stop treatment, tests can’t find the hepatitis C virus in your blood. At that point, the virus is very unlikely to return. This is the goal of treatment for hepatitis C.
What is considered SVR?
Sustained virologic response (SVR) is defined as aviremia 24 weeks after completion of antiviral therapy for chronic hepatitis C virus (HCV) infection.
Does Hep C have a vaccine?
There is no vaccine for hepatitis C. The best way to prevent hepatitis C is by avoiding behaviors that can spread the disease, especially injecting drugs. Getting tested for hepatitis C is important, because treatments can cure most people with hepatitis C in 8 to 12 weeks.
What is a null responder in an HCV trial?
Sometimes, HCV re-treatment trials study a mixed population of relapsers, partial responders, non-responders, and null responders, which makes it difficult to interpret the results. Null Responder: A null responder is someone who achieves little or no decrease in hepatitis C viral load during HCV treatment.
What is a partial responder to HCV?
Partial Responder: A partial responder is someone who experiences at least a 2-log decrease in hepatitis C viral load during HCV treatment. Partial responders are more likely to respond to re-treatment than non-responders or null responders.
How is the response to hepatitis C treatment measured?
Treatment Response: Response to hepatitis C treatment is measured by change in HCV viral load at different time points. Since it is a common practice to release interim data from HCV treatment trials, it is important to understand what these terms mean, so that interim results can be properly interpreted.
What is the meaning of RVR and EVR in hepatitis C?
RVR is mainly used in research. EVR (Early Virological Response): EVR means that hepatitis C viral load has dropped by 99% (2 logs), or is undetectable after 12 weeks of HCV treatment. An EVR is a good predictor of the ultimate response to HCV treatment.