Treating liver cancer requires a carefully planned approach that depends on the stage of disease, how well the liver is functioning, and the overall health of the patient. Medical teams today use a combination of proven therapies and explore new options through clinical trials to help control tumor growth, ease symptoms, and improve quality of life for those diagnosed with this challenging condition.

Understanding Treatment Goals for Liver Cancer

When someone receives a diagnosis of liver cancer, also known as hepatic cancer, the treatment plan becomes highly personalized. The main goals are to remove or destroy cancer cells, slow down disease progression, manage symptoms, and support the patient’s quality of life for as long as possible. Treatment decisions are never made lightly because the liver plays critical roles in the body, including filtering toxins, producing bile for digestion, and storing energy.^[1]

The type of treatment offered depends on many factors. These include whether the cancer started in the liver or spread from another part of the body, the size and location of tumors, how many tumors are present, and whether the cancer has spread beyond the liver. Another crucial factor is the condition of the liver itself. Many people with liver cancer also have underlying liver disease such as cirrhosis, which is severe scarring that affects how the organ functions. If cirrhosis is advanced, some treatments may not be safe or effective.^[3]

The patient’s overall health also matters greatly. Age, other medical conditions, and physical strength all influence which treatments can be used. Because liver cancer is often detected at a later stage when symptoms first appear, treatment options may be limited. This makes early detection through regular screening especially important for people at high risk, such as those with chronic hepatitis B or C infections.^[4]

Medical guidelines from professional societies help doctors decide on the best treatment approaches. These recommendations are based on years of research and clinical experience. At the same time, researchers worldwide are testing new therapies in clinical trials, offering hope for better outcomes in the future.^[2]

Standard Treatments Currently Used

Standard treatments for liver cancer have been developed and refined over many years. They represent the current best practices approved by medical authorities and are widely available in hospitals and cancer centers.

Surgery

Surgery is one of the most effective treatments when liver cancer is detected early and the tumors can be completely removed. There are two main types of surgical options. The first is called partial hepatectomy, where surgeons remove the part of the liver containing cancer along with some surrounding healthy tissue. The liver has a remarkable ability to regenerate, so the remaining tissue can grow back and take over the organ’s functions.^[14]

The second surgical option is liver transplantation, where the entire diseased liver is removed and replaced with a healthy liver from a donor. This approach may be considered when the cancer is confined to the liver but cannot be removed by partial surgery, or when liver disease is so severe that the organ cannot function properly even after tumor removal. However, finding a suitable donor liver can take time, and not all patients are eligible for transplant due to their overall health or the extent of cancer spread.^[11]

Recovery from liver surgery can be lengthy and requires careful monitoring. Patients need to follow specific dietary guidelines and attend regular check-ups to ensure the liver is healing properly and the cancer has not returned.

Ablation Therapy

For patients who cannot undergo surgery due to poor health or liver function, ablation therapy offers another way to destroy cancer cells directly. These treatments use different forms of energy to kill tumors without removing them surgically.^[14]

Radiofrequency ablation uses high-energy radio waves delivered through special needles inserted directly into the tumor, either through the skin or during surgery. The radio waves heat the needles and surrounding tissue, killing cancer cells. Microwave therapy works similarly but uses microwave energy to create the heat. Another option is percutaneous ethanol injection, where pure alcohol is injected directly into the tumor to destroy cancer cells. This procedure may need to be repeated several times and is usually done with local anesthesia, though general anesthesia may be used if multiple tumors need treatment.^[14]

Cryoablation takes the opposite approach, using extreme cold to freeze and destroy cancer cells. Doctors use imaging such as ultrasound to guide these instruments precisely to the tumor location.^[14]

Embolization Therapy

Embolization treatments work by blocking the blood supply to liver tumors. Unlike healthy liver tissue, which receives blood from multiple sources, tumors depend heavily on blood from the hepatic artery. By blocking this artery, doctors can essentially starve the tumor of oxygen and nutrients it needs to grow.^[14]

Transarterial embolization (TAE) involves making a small cut in the inner thigh and threading a thin tube called a catheter up into the hepatic artery. Once in position, doctors inject substances that block the artery and stop blood flow to the tumor. Transarterial chemoembolization (TACE) adds cancer-fighting drugs to this procedure. The drugs can be attached to tiny beads that are injected into the artery, or injected directly. This approach delivers chemotherapy right to the tumor while also cutting off its blood supply.^[14]

These procedures are typically used for patients whose tumors cannot be removed surgically and whose cancer has not spread outside the liver. They may also be used to shrink tumors while waiting for a liver transplant.^[18]

Targeted Therapy

Targeted therapies are drugs designed to attack specific features of cancer cells while causing less harm to normal cells than traditional chemotherapy. For liver cancer, these drugs work by interfering with the signals that cancer cells use to grow and divide, or by blocking the formation of new blood vessels that tumors need to grow.^[14]

These medications are typically used when liver cancer is advanced and cannot be treated with surgery, or when the cancer has spread to other parts of the body. Doctors prescribe them as pills or intravenous infusions. Side effects can include fatigue, skin problems, high blood pressure, and digestive issues, but many patients tolerate these drugs reasonably well.^[19]

Immunotherapy

Immunotherapy represents a newer approach that helps the patient’s own immune system recognize and attack cancer cells. The immune system normally protects the body from disease, but cancer cells can sometimes hide from immune cells or turn off their responses. Checkpoint inhibitors are a type of immunotherapy that removes these “brakes” on the immune system, allowing it to fight cancer more effectively.^[19]

For advanced liver cancer, the current standard of care often combines immunotherapy with targeted therapy. For example, the checkpoint inhibitor atezolizumab is approved for use in combination with the targeted antibody bevacizumab as a first-line treatment for certain patients with advanced liver cancer. Other checkpoint inhibitors like nivolumab, pembrolizumab, and durvalumab (sometimes combined with tremelimumab or ipilimumab) are also approved for specific groups of patients.^[19]

However, not all patients respond to immunotherapy. Those with a history of hepatitis infection may face additional challenges, as the treatment could potentially damage healthy liver cells along with cancerous ones. Researchers continue working to understand why some patients respond better than others.^[7]

Radiation Therapy

Radiation therapy uses high-energy beams to kill cancer cells or stop them from growing. A specialized type called selective internal radiation therapy (SIRT) or radioembolization involves injecting tiny radioactive beads into the liver’s blood supply. These beads lodge in or near the tumor and deliver radiation directly to cancer cells while limiting exposure to healthy tissue.^[18]

This treatment is typically used in adults whose liver function is relatively preserved and whose cancer cannot be removed surgically. It aims to control tumor growth and improve symptoms. External beam radiation, where radiation is delivered from outside the body, may also be used in certain situations.^[16]

Surveillance

For very small lesions (less than 1 centimeter) detected during routine screening in high-risk patients, doctors may recommend close monitoring rather than immediate treatment. This approach, called surveillance, involves regular imaging tests every three months to watch for any growth or changes. Many of these tiny spots turn out to be benign growths related to cirrhosis rather than cancer.^[14]

Promising Treatments Being Tested in Clinical Trials

Clinical trials are carefully designed research studies that test new treatments or new ways of using existing treatments. They follow strict rules to protect participants and generate reliable scientific evidence. For liver cancer, researchers are exploring many innovative approaches that may become standard treatments in the future.

Understanding Clinical Trial Phases

Clinical trials proceed through several phases, each with a specific purpose. Phase I trials focus on safety, testing a new treatment in a small group of people to determine safe dosages and identify side effects. Phase II trials expand to more participants to evaluate how well the treatment works and continue monitoring safety. Phase III trials involve large groups of patients and compare the new treatment against current standard treatments to see which works better. If a treatment proves safe and effective through these phases, regulatory authorities may approve it for general use.^[19]

New Immunotherapy Approaches

Researchers are testing various ways to boost immune responses against liver cancer. Beyond the checkpoint inhibitors already approved, scientists are investigating combinations of different immunotherapy drugs, or combining immunotherapy with other treatment types. Some trials are exploring how to make immunotherapy more effective for patients who don’t respond to current options.^[19]

One challenge specific to liver cancer is that certain immune cells called gamma delta T cells actually help tumors grow instead of fighting them. Understanding why this happens could lead to new treatments that reprogram these cells to attack cancer rather than support it. Researchers funded by organizations like the Cancer Research Institute are working to unravel these mechanisms.^[7]

Targeted Therapy Innovations

New targeted drugs are being developed that attack different molecular pathways involved in liver cancer growth. Some experimental drugs target specific genetic mutations found in liver cancer cells, while others focus on blocking signals that tumors use to communicate and spread. These drugs often have code names or numbers (like experimental compounds referred to by laboratory codes) during early testing before receiving official names.^[19]

Researchers are also studying which patients are most likely to benefit from specific targeted therapies based on the genetic characteristics of their tumors. This approach, called precision medicine, aims to match the right treatment to the right patient.^[19]

Advanced Radiation Techniques

Clinical trials are testing newer forms of radiation therapy that can deliver higher doses more precisely to tumors while protecting surrounding healthy tissue. These advanced techniques may help control tumors that cannot be treated with surgery or standard radiation.^[16]

Combination Approaches

Many current trials are testing combinations of different treatment types. For example, researchers are studying whether combining ablation therapy with immunotherapy works better than either treatment alone. Other trials examine the timing of different treatments, such as whether giving immunotherapy before surgery improves outcomes. These combination strategies aim to attack cancer from multiple angles simultaneously.^[19]

Eligibility and Locations

Clinical trials for liver cancer are conducted at major medical centers and cancer research institutions around the world, including locations in the United States, Europe, and Asia. Each trial has specific criteria that determine who can participate, based on factors like cancer stage, previous treatments received, liver function, and overall health. Patients interested in clinical trials should discuss options with their medical team, who can help determine if any trials might be appropriate. Many trials are also listed on registries where patients and doctors can search for relevant studies.^[19]

Most Common Treatment Methods

• Surgery
  • Partial hepatectomy to remove the portion of liver containing cancer along with surrounding healthy tissue
  • Liver transplantation to replace the entire diseased liver with a healthy donor liver
  • Most effective when cancer is detected early and confined to the liver
• Ablation Therapy
  • Radiofrequency ablation using radio waves to heat and destroy tumors
  • Microwave therapy using microwave energy to kill cancer cells
  • Percutaneous ethanol injection delivering pure alcohol directly into tumors
  • Cryoablation using extreme cold to freeze and destroy cancer cells
  • Offered when surgery is not possible due to health or liver function concerns
• Embolization Therapy
  • Transarterial embolization (TAE) blocking blood supply to tumors through the hepatic artery
  • Transarterial chemoembolization (TACE) combining blood vessel blocking with chemotherapy drugs delivered directly to tumors
  • Used for patients whose cancer cannot be surgically removed and has not spread beyond the liver
• Targeted Therapy
  • Drugs that interfere with specific molecules cancer cells need to grow and spread
  • Block formation of new blood vessels that feed tumors
  • Typically used for advanced liver cancer or when cancer has spread to other organs
  • Administered as pills or intravenous infusions
• Immunotherapy
  • Checkpoint inhibitors like atezolizumab, nivolumab, pembrolizumab, and durvalumab that help the immune system recognize and attack cancer cells
  • Often combined with targeted antibodies like bevacizumab for advanced liver cancer
  • May be used alone or in combination with other immunotherapy drugs like ipilimumab or tremelimumab
  • Not all patients respond, particularly those with hepatitis history who may face additional risks
• Radiation Therapy
  • Selective internal radiation therapy (SIRT) delivering radioactive beads directly into liver’s blood supply
  • External beam radiation targeting tumors from outside the body
  • Used to control tumor growth when surgery is not an option
• Surveillance
  • Close monitoring with regular imaging every three months for very small lesions under 1 centimeter
  • Allows doctors to watch for growth or changes before starting active treatment
  • Many small lesions turn out to be benign rather than cancerous