Hepatitis B is a viral infection that attacks the liver, and managing it effectively requires a thoughtful approach that considers the stage of infection, the patient’s overall health, and the specific goals of care. While vaccination remains the cornerstone of prevention, those living with chronic hepatitis B have access to treatments that can help control the virus and reduce the risk of serious complications like cirrhosis and liver cancer.

Navigating Treatment Options for Hepatitis B

When someone is diagnosed with hepatitis B, the path forward depends largely on whether the infection is acute or chronic. Acute hepatitis B refers to a short-term illness that occurs within the first six months after exposure to the virus. Many adults with acute hepatitis B are able to clear the infection on their own without any medical intervention. For these individuals, the body’s immune system successfully fights off the virus, and the infection resolves naturally. During this period, treatment is primarily supportive, focusing on rest, proper nutrition, and staying hydrated. Some people experience no symptoms at all, while others may feel as though they have a flu-like illness with fatigue, nausea, and abdominal discomfort.^[1][10]

Chronic hepatitis B, on the other hand, represents a long-term infection that persists beyond six months and can last a lifetime. This form of the disease poses greater challenges because it can lead to progressive liver damage, including scarring of the liver known as cirrhosis, liver failure, and hepatocellular carcinoma, which is a type of liver cancer. Not everyone with chronic hepatitis B will require immediate treatment with medications. The decision to start therapy depends on several factors, including the level of virus in the blood, liver enzyme levels, the degree of liver damage, and the patient’s age and overall health status.^[2][11]

Healthcare providers typically recommend regular monitoring for all patients with chronic hepatitis B, even those who do not require medication. This involves blood tests to measure liver function, viral load, and other markers of disease activity, as well as imaging studies like ultrasounds to assess the liver’s condition. These check-ups are usually scheduled every six months to ensure that any changes in the disease are detected early and managed appropriately.^[20][22]

Standard Treatment Approaches

For patients with chronic hepatitis B who do need treatment, there are two main categories of medications available: antiviral drugs and immune modulator drugs. Each works differently and is suited to different patient profiles and disease stages.

Antiviral drugs are the most commonly used medications for chronic hepatitis B. These medications work by stopping or significantly slowing down the replication of the hepatitis B virus inside the liver cells. When the virus cannot reproduce effectively, the inflammation and damage to the liver are reduced. The most widely used antiviral drugs include tenofovir (available as tenofovir disoproxil fumarate or tenofovir alafenamide) and entecavir. These are taken orally, usually once a day, and are known for their strong antiviral effect and favorable safety profile.^[11][16]

One of the key characteristics of antiviral therapy is that it is typically long-term. Many patients need to take these medications for years, and in some cases, for the rest of their lives. While these drugs do not cure hepatitis B—meaning they do not eliminate the virus completely from the body—they are highly effective at keeping the virus inactive. An inactive virus cannot cause further liver damage or spread to others. Clinical guidelines from major medical societies, including the American Association for the Study of Liver Diseases and the European Association for the Study of the Liver, recommend antiviral therapy for patients with elevated levels of hepatitis B virus DNA in their blood, abnormal liver enzyme levels, or evidence of liver damage on imaging or biopsy.^[14][16]

The second category of treatment is immune modulator drugs, which include interferons and specifically pegylated interferon. Interferons are proteins naturally produced by the immune system in response to infections. When given as a medication, they help boost the body’s immune response against the hepatitis B virus. Unlike oral antivirals, pegylated interferon is administered as an injection, typically once a week, and the treatment course usually lasts between six months and one year. This approach may be more suitable for certain patients, particularly younger individuals without advanced liver disease who are looking for a finite treatment duration rather than indefinite therapy.^[11][14]

However, interferons are associated with more side effects compared to oral antivirals. Patients receiving interferon therapy may experience flu-like symptoms, fatigue, mood changes, and low blood cell counts. Because of these side effects and the need for regular injections, many patients and healthcare providers prefer oral antiviral drugs when both options are clinically appropriate.^[16]

The goal of treatment with either antivirals or interferons is to suppress viral replication, reduce liver inflammation, prevent the progression to cirrhosis and liver cancer, and ultimately improve survival and quality of life. Studies have shown that long-term antiviral therapy can significantly reduce the risk of developing complications such as cirrhosis and hepatocellular carcinoma. However, it is important to note that even with successful viral suppression, the risk of liver cancer is not completely eliminated, which is why ongoing surveillance remains critical.^[16]

Treatment in Clinical Trials

While current therapies for hepatitis B are effective at controlling the virus and preventing liver damage, they do not provide a complete cure. This means that the virus remains in the body, often hidden in the liver cells in a form called covalently closed circular DNA, which existing drugs cannot eliminate. Because of this limitation, researchers around the world are actively working on developing new therapies that could achieve what is often referred to as a “functional cure”—a state where the virus is permanently suppressed without the need for ongoing medication.^[16]

One of the most promising areas of research involves drugs that target the hepatitis B surface antigen, known as HBsAg. High levels of HBsAg in the blood are associated with immune system exhaustion, making it harder for the body to control the virus. New investigational drugs, including RNA interference therapies and antisense oligonucleotides, are designed to reduce or eliminate HBsAg production. By lowering HBsAg levels, these therapies aim to “wake up” the immune system so it can better recognize and attack infected liver cells. Early clinical trials of these agents have shown that they can significantly reduce HBsAg levels in some patients, and researchers are now studying whether this reduction can lead to long-term viral control after treatment is stopped.^[16]

Another innovative approach involves therapeutic vaccines. Unlike preventive vaccines that are given to uninfected individuals, therapeutic vaccines are designed to strengthen the immune response in people who already have chronic hepatitis B. These vaccines work by training the immune system to recognize and attack cells infected with the virus. Several therapeutic vaccines are currently being tested in Phase I and Phase II clinical trials. Phase I trials focus on evaluating the safety of the new treatment and determining the appropriate dose, while Phase II trials assess whether the treatment is effective in reducing viral load or improving liver health. Some of these vaccines are being tested alone, while others are being combined with antiviral drugs or other immune-boosting therapies to enhance their effectiveness.^[16]

Immunomodulatory therapies represent another exciting frontier. These treatments aim to restore or enhance the immune system’s ability to fight the hepatitis B virus. One example is checkpoint inhibitors, which are already used successfully in cancer treatment. These drugs block proteins that prevent immune cells from attacking infected or abnormal cells. Researchers are investigating whether checkpoint inhibitors can help the immune system clear hepatitis B-infected liver cells. However, because these therapies can sometimes cause the immune system to become overactive, leading to inflammation and potential liver damage, they must be studied carefully in controlled clinical trials.^[16]

Capsid assembly modulators are another class of drugs being tested. The virus uses a protein shell called a capsid to protect its genetic material and replicate. Capsid assembly modulators interfere with the formation or function of this capsid, preventing the virus from completing its life cycle. These drugs have shown promise in early-phase clinical trials by reducing viral DNA levels in the blood. Some are now moving into Phase II and Phase III trials, where they are being tested in larger groups of patients to determine their efficacy and safety compared to standard treatments.^[16]

Clinical trials for hepatitis B are being conducted in many countries, including the United States, Europe, and parts of Asia where hepatitis B is more common. Patients who are interested in participating in a clinical trial typically need to meet specific eligibility criteria, which may include factors like age, viral load, liver health, and whether they have received previous treatment. Clinical trial participation offers patients access to cutting-edge therapies that are not yet available to the general public, as well as close monitoring by a team of specialists. However, it is important for patients to understand that experimental treatments come with uncertainties, including unknown side effects and the possibility that the treatment may not work as hoped.^[11]

Most common treatment methods

• Antiviral medications
  • Oral drugs taken daily to suppress hepatitis B virus replication
  • Commonly used agents include tenofovir (tenofovir disoproxil fumarate or tenofovir alafenamide) and entecavir
  • Typically required for long-term or lifelong use
  • Effective at reducing liver inflammation and preventing progression to cirrhosis and liver cancer
• Immune modulator therapy
  • Pegylated interferon administered as a weekly injection
  • Treatment duration usually six months to one year
  • Boosts the immune system’s response against the virus
  • Associated with more side effects including flu-like symptoms, fatigue, and mood changes
• Supportive care for acute hepatitis B
  • Rest, balanced diet, and adequate fluid intake
  • Monitoring for complications
  • Hospitalization if symptoms are severe
• Regular monitoring and surveillance
  • Blood tests every six months to monitor liver function and viral load
  • Imaging studies such as ultrasound to screen for liver damage and liver cancer
  • Essential for both treated and untreated patients
• Experimental therapies in clinical trials
  • RNA interference therapies and antisense oligonucleotides to reduce hepatitis B surface antigen levels
  • Therapeutic vaccines to strengthen immune response
  • Checkpoint inhibitors and other immunomodulatory drugs
  • Capsid assembly modulators to interfere with viral replication
  • Tested in Phase I, II, and III clinical trials in various countries

Living a Healthy Life with Hepatitis B

Whether or not a person with chronic hepatitis B is taking medication, there are many lifestyle choices that can support liver health and overall well-being. The liver is a resilient organ, but it can be damaged by additional stressors, so protecting it is a priority.

One of the most important steps is to avoid alcohol completely. Alcohol is processed by the liver, and even small amounts can accelerate liver damage in people with hepatitis B. Similarly, smoking should be avoided, as it can worsen liver health and increase the risk of liver cancer.^[17]

Patients should also be cautious with over-the-counter medications and supplements. Some common drugs, such as acetaminophen (also known as paracetamol), can be harmful to the liver if taken in large amounts or over extended periods. Before taking any new medication, including herbal remedies or vitamin supplements, patients should consult their healthcare provider or pharmacist to ensure it is safe for their liver.^[17][18]

A balanced diet rich in fruits, vegetables, whole grains, and lean proteins supports liver function and overall health. Regular physical activity and maintaining a healthy body weight are also beneficial, as obesity can contribute to fatty liver disease, which can worsen outcomes in people with hepatitis B.^[17]

Vaccination against hepatitis A is strongly recommended for people with hepatitis B, as a co-infection with hepatitis A can lead to more severe liver complications. Patients should also be tested for other infections such as hepatitis C, hepatitis D, and HIV, as co-infections require specialized care.^[17][20]

Protecting loved ones is another important consideration. Hepatitis B is spread through contact with infected blood and body fluids, so patients should ensure that their close contacts, sexual partners, and household members are vaccinated. Newborns born to mothers with hepatitis B should receive both the hepatitis B vaccine and hepatitis B immune globulin within the first 24 hours of life to prevent transmission.^[3][20]