What should be done if liver cancer develops drug resistance?
Over a year ago, I started self-paying for Hepatitis B treatment with antiviral medication because I was experiencing severe dizziness every day.
I didn't wait the full three months and have been on the medication for over a year now.
Initially, my e-antigen positive viral load dropped from over a thousand to 1.96 after three months.
However, during subsequent checks every three months, the levels have been 2.32, 2.02, and then 3.03, indicating an increasing trend.
My doctor advised me to continue the treatment, but I am only 27 years old.
I'm concerned about developing drug resistance.
Should I switch to another medication like Tenofovir? It's quite expensive.
What should I do? I'm still self-paying for my treatment.
Should I stop taking the medication and wait until my viral load exceeds five times the normal level before using insurance for treatment? Is it possible for me to not take medication at all? Am I destined to be on medication for life? I feel that I may never convert to e-antigen negative since my levels keep rising.
What should I do? Thank you for your response.
A-Hao, 20~29 year old female. Ask Date: 2005/12/19
Dr. Lin Minghui reply Gastroenterology and Hepatology
Reply: Hello, I recommend the following: 1.
Confirm the presence of drug resistance.
2.
If drug resistance is present, taking Hepatitis B antiviral medication (such as Entecavir) may be less effective.
After discontinuing the medication, liver enzyme levels may rise again within 3 to 6 months.
Therefore, if drug resistance is confirmed, it is advisable to switch to Tenofovir treatment for 1 to 2 years, as Tenofovir has a lower rate of drug resistance.
If drug resistance develops, you can switch back to Entecavir.
Currently, the National Health Insurance does not cover Tenofovir.
3.
Antiviral medications (Entecavir, Tenofovir) generally have fewer side effects, but the treatment duration is not fixed and varies by individual.
The treatment goal is to achieve a negative eAntigen (eAg) result.
If eAg remains positive and liver enzyme levels (GPT) increase by 2 to 10 times, consideration can be given to interferon therapy, which has a fixed treatment duration of 6 months.
Currently, the National Health Insurance covers long-acting interferon under certain conditions.
Sincerely, Dr.
Lin Ming-Hui, Internal Medicine.
Reply Date: 2005/12/19
More Info
When dealing with hepatitis B treatment, particularly when resistance to medication develops, it is crucial to approach the situation with a comprehensive understanding of the disease and available treatment options. Hepatitis B virus (HBV) can indeed develop resistance to antiviral medications, especially if the treatment is not effective in suppressing the virus adequately.
In your case, it appears that you have been on a treatment regimen that initially showed some effectiveness, but over time, the viral load has increased, indicating that the virus may have developed resistance to the medication you were taking. This is a common issue with antiviral treatments, particularly with drugs like lamivudine and adefovir, which are known to have resistance patterns.
Here are some steps you can consider taking:
1. Consult Your Healthcare Provider: It is essential to have an open dialogue with your healthcare provider about your concerns. Discuss the possibility of resistance testing, which can help determine if the virus has developed mutations that confer resistance to the current treatment. This can guide the decision on whether to switch medications or adjust the treatment plan.
2. Consider Switching Medications: If resistance is confirmed, your doctor may recommend switching to a different antiviral medication. Tenofovir is a newer antiviral that has shown effectiveness against HBV and has a lower rate of resistance compared to older drugs. While it may be more expensive, it could be a worthwhile investment for better long-term management of your condition.
3. Monitor Your Liver Function: Regular monitoring of liver enzymes (ALT and AST) and HBV DNA levels is crucial. This will help assess the effectiveness of any new treatment and ensure that your liver function remains stable. If your liver enzymes are significantly elevated, it may indicate ongoing liver inflammation, which needs to be addressed promptly.
4. Lifestyle Modifications: In addition to medication, adopting a healthy lifestyle can support liver health. This includes maintaining a balanced diet, avoiding alcohol, and managing weight, especially if you have fatty liver disease. Regular exercise can also be beneficial.
5. Consider the Long-Term Perspective: Chronic hepatitis B is a lifelong condition for many individuals. While it can be daunting to think about long-term treatment, advancements in antiviral therapies have made it possible for many patients to manage their condition effectively. Discuss with your doctor the potential for achieving an e-antigen negative status, which can indicate a lower level of viral activity and a better prognosis.
6. Support and Education: Joining support groups or seeking educational resources about hepatitis B can provide emotional support and valuable information about living with the condition. Understanding your disease can empower you to make informed decisions about your health.
7. Evaluate the Need for Treatment: If your liver function tests are stable and your viral load is low, your doctor may discuss the option of "watchful waiting," where treatment is deferred until there is a significant change in your condition. However, this should only be done under the guidance of a healthcare professional.
In conclusion, if you suspect that your hepatitis treatment has developed resistance, it is vital to consult with your healthcare provider to explore your options. Switching medications, regular monitoring, and lifestyle changes can all play a role in managing your hepatitis B effectively. Remember, you are not alone in this journey, and there are resources and support available to help you navigate your treatment options.
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