Mesothelioma treatment aims to control symptoms, slow disease progression, and improve quality of life for patients facing this aggressive cancer. While there is currently no cure for most cases, a combination of surgery, chemotherapy, radiation, and newer therapies being tested in clinical trials can help extend survival and reduce the burden of symptoms.

Understanding Your Treatment Journey with Mesothelioma

When someone receives a mesothelioma diagnosis, understanding the treatment options available becomes crucial to making informed decisions. The main goals of treatment are to control the growth of cancer cells, manage symptoms such as chest pain and breathing difficulties, and help patients maintain the best possible quality of life. Treatment decisions depend heavily on several factors including the stage at which the cancer is detected, the specific location of the tumors, the patient’s overall health, and their personal preferences.^[1]

Medical societies and cancer centers have established standard treatment protocols based on years of research and clinical experience. These approved treatments form the foundation of care for mesothelioma patients. At the same time, researchers continue to explore new therapeutic approaches through clinical trials, testing innovative drugs and treatment combinations that may offer better outcomes in the future. Patients have the option to receive standard care, participate in clinical trials investigating experimental therapies, or combine both approaches depending on their individual situation.^[2]

Because mesothelioma is rare and often diagnosed at advanced stages, treatment typically focuses on extending life and reducing suffering rather than achieving complete cure. However, some patients, particularly those diagnosed early, may benefit from aggressive treatment combinations that can significantly extend survival. The key is working closely with a specialized medical team experienced in treating mesothelioma to develop a personalized treatment plan.^[4]

Standard Treatment Approaches for Mesothelioma

Standard mesothelioma treatment involves several established methods that doctors use based on the stage of disease and the patient’s ability to tolerate aggressive therapies. These treatments have been refined over decades and represent the current foundation of mesothelioma care.

Surgery for Mesothelioma

Surgery plays an important role in mesothelioma treatment, though it is not suitable for all patients. To undergo surgery, patients must be relatively fit and healthy, as these procedures are extensive and recovery can be challenging. For early-stage mesothelioma affecting the lung lining, surgeons may perform a pleurectomy, which involves removing part or all of the pleura (the thin tissue covering the lungs). In some cases, a more extensive operation called pleurectomy and decortication removes the entire pleura along with visible tumor tissue.^[10]

Another surgical option, though used less frequently now, is extrapleural pneumonectomy, which involves removing the affected lung, the pleura, the diaphragm, and the lining around the heart. This is a major operation with significant risks, and many centers have moved away from it in favor of less extensive procedures that preserve the lung. Surgery alone rarely cures mesothelioma, but it can reduce the tumor burden and is often combined with other treatments.^[13]

For patients with advanced disease or those who are not strong enough for major surgery, doctors may perform palliative procedures to relieve symptoms. These include pleurodesis, a procedure that uses substances like talc to seal the space between the lung and chest wall, preventing fluid buildup that causes breathing difficulties. Surgeons can also place drains to regularly remove fluid that accumulates around the lungs, providing ongoing relief from shortness of breath.^[10]

Chemotherapy

Chemotherapy uses powerful drugs to kill cancer cells or slow their growth. It remains one of the main treatments for mesothelioma at all stages. The drugs circulate throughout the body in the bloodstream, reaching cancer cells wherever they may be. The standard chemotherapy combination for mesothelioma includes two drugs: cisplatin and pemetrexed. This combination has been shown to help shrink tumors and extend survival in many patients.^[8]

Chemotherapy is typically given in cycles, with treatment periods followed by rest periods to allow the body to recover. Patients receive these drugs through an intravenous line, usually in an outpatient setting. The duration of chemotherapy varies but often continues for several months as long as the cancer responds and the patient tolerates the treatment well.^[13]

Unfortunately, chemotherapy causes side effects because it affects not only cancer cells but also healthy, rapidly dividing cells in the body. Common side effects include fatigue, nausea and vomiting, loss of appetite, hair loss, increased risk of infection due to low white blood cell counts, and numbness or tingling in the hands and feet (a condition called peripheral neuropathy). Many of these side effects can be managed with supportive medications and typically improve after treatment ends.^[4]

Radiation Therapy

Radiation therapy uses high-energy rays similar to x-rays to kill cancer cells. In mesothelioma treatment, radiation can be used in different ways depending on the situation. After surgery for early-stage disease, radiation may be directed at the surgical area to kill any remaining cancer cells that were not visible or removable during the operation. This is called adjuvant radiation therapy.^[13]

For patients with advanced mesothelioma who cannot have surgery, radiation therapy can help shrink tumors and relieve symptoms. It is particularly useful for controlling pain caused by tumors pressing on nerves or other structures. Radiation is given in multiple sessions over several weeks, typically five days a week. Each treatment session lasts only a few minutes, though the preparation takes longer.^[10]

Side effects of radiation therapy depend on the area being treated. For chest radiation, patients may experience skin changes resembling sunburn, fatigue, difficulty swallowing if the esophagus is in the treatment field, and shortness of breath. These effects usually develop gradually during treatment and typically improve within weeks after radiation therapy ends. Long-term side effects can include permanent skin changes and scarring of lung tissue in the treated area.^[13]

Immunotherapy

Immunotherapy represents a newer approach that has recently become part of standard treatment for some mesothelioma patients. Unlike chemotherapy, which directly attacks cancer cells, immunotherapy works by helping the patient’s own immune system recognize and fight the cancer. Normally, cancer cells can hide from the immune system or prevent it from attacking. Immunotherapy drugs remove these protective mechanisms, allowing immune cells to do their job.^[2]

For pleural mesothelioma, the immunotherapy combination of nivolumab and ipilimumab has been approved as a first-line treatment option. These drugs belong to a class called checkpoint inhibitors because they block proteins that act as checkpoints, preventing the immune system from attacking cancer cells. Patients receive these medications through intravenous infusion, typically every two or three weeks.^[13]

Immunotherapy can cause different side effects than chemotherapy. Because it stimulates the immune system, it can sometimes cause the immune system to attack normal tissues, leading to inflammation in various organs. Common side effects include fatigue, skin rash, diarrhea, and changes in hormone levels. More serious but less common effects can involve inflammation of the lungs, liver, intestines, or other organs. Doctors monitor patients carefully and can treat these side effects with medications that calm the immune response if needed.^[13]

Multimodal Therapy

Many mesothelioma patients benefit from multimodal therapy, which means receiving more than one type of treatment. For example, a patient with early-stage disease might undergo surgery to remove visible tumors, followed by chemotherapy to kill remaining cancer cells, and then radiation therapy to the surgical area. This comprehensive approach attempts to attack the cancer from multiple angles and has been shown to improve outcomes for selected patients who are healthy enough to tolerate intensive treatment.^[14]

The specific combination and sequence of treatments varies based on individual circumstances. Some patients receive chemotherapy before surgery to shrink tumors and make them easier to remove. Others receive all therapies after surgery. The medical team considers factors such as the patient’s age, overall health, cancer stage, and personal preferences when designing a multimodal treatment plan.^[16]

Innovative Treatments Being Tested in Clinical Trials

While standard treatments provide benefit to many mesothelioma patients, researchers continue searching for more effective therapies through clinical trials. These studies test new drugs, new combinations of existing drugs, and entirely new treatment approaches. Participating in a clinical trial gives patients access to cutting-edge therapies that may be more effective than standard treatment, though this is not guaranteed.^[8]

Understanding Clinical Trial Phases

Clinical trials progress through different phases, each designed to answer specific questions about a new treatment. Phase I trials focus primarily on safety, testing a new drug in a small group of patients to determine the appropriate dose and identify side effects. Phase II trials enroll more patients to evaluate whether the treatment actually works against the cancer and to gather more information about safety. Phase III trials involve large numbers of patients and compare the new treatment directly against the current standard treatment to see which works better.^[13]

Patients considering clinical trials should understand that participation involves some uncertainty. New treatments may prove more effective than standard options, equally effective, or less effective. However, clinical trials are carefully designed and monitored to protect patient safety, and participants can leave a trial at any time if they choose.^[8]

Targeted Therapy

Targeted therapy uses drugs designed to attack specific molecular features of cancer cells while causing less harm to normal cells. Unlike traditional chemotherapy, which affects all rapidly dividing cells, targeted therapies focus on particular proteins or genetic changes that drive cancer growth. Researchers are investigating various targeted agents for mesothelioma, including drugs that block specific growth signals cancer cells use to multiply and spread.^[2]

Some targeted therapies being studied in mesothelioma clinical trials include drugs that inhibit angiogenesis, the process by which tumors develop new blood vessels to feed their growth. By blocking this process, these drugs aim to starve tumors of the nutrients and oxygen they need. Other targeted agents focus on specific genetic mutations found in some mesothelioma tumors. Before receiving targeted therapy, patients typically undergo testing to determine whether their cancer has the specific target the drug is designed to attack.^[12]

Gene Therapy Approaches

Gene therapy represents an innovative approach that involves introducing genetic material into cancer cells to kill them or prevent their growth. Some experimental gene therapies for mesothelioma use modified viruses to carry therapeutic genes into tumor cells. These genes may produce substances toxic to cancer cells, stimulate the immune system to attack the tumor, or interfere with the cancer’s ability to grow and spread. While still largely experimental, gene therapy research continues to advance and may offer new options in the future.^[12]

Enhanced Immunotherapy Strategies

Beyond the checkpoint inhibitor drugs now used as standard treatment, researchers are exploring other ways to harness the immune system against mesothelioma. Clinical trials are testing vaccines designed to train the immune system to recognize mesothelioma cells, combinations of different immunotherapy drugs, and approaches that modify a patient’s own immune cells in the laboratory before returning them to the body to fight cancer.^[12]

One promising area involves CAR T-cell therapy, which has shown success in certain blood cancers. This approach involves removing immune cells called T-cells from the patient’s blood, genetically modifying them in the laboratory to recognize and attack mesothelioma cells, growing large numbers of these modified cells, and then infusing them back into the patient. While this therapy faces challenges in solid tumors like mesothelioma, research continues to refine the approach.^[12]

Hyperthermic Chemotherapy

Hyperthermic intraperitoneal chemotherapy, often abbreviated as HIPEC, is a specialized treatment approach being used and studied for peritoneal mesothelioma (cancer affecting the abdominal lining). During surgery to remove visible tumors, heated chemotherapy solution is circulated throughout the abdominal cavity for about 90 minutes. The heat enhances the effectiveness of the chemotherapy drugs and allows high concentrations to reach any remaining cancer cells directly, while minimizing exposure of the rest of the body to these drugs.^[14]

HIPEC combined with surgery has shown promising results in selected patients with peritoneal mesothelioma, with some experiencing long-term survival. However, this is a complex procedure requiring specialized expertise and is only appropriate for patients healthy enough to undergo major surgery. Clinical trials continue to refine this approach and evaluate which patients benefit most.^[9]

Accessing Clinical Trials

Clinical trials for mesothelioma are conducted at specialized cancer centers across the United States, Europe, and other regions worldwide. To participate, patients typically must meet specific eligibility criteria related to their cancer stage, prior treatments, and overall health. Patients interested in clinical trials should discuss options with their oncologist, who can help identify appropriate studies and facilitate enrollment.^[8]

Major cancer centers including Memorial Sloan Kettering Cancer Center, MD Anderson Cancer Center, Dana-Farber Cancer Institute, and Brigham and Women’s Hospital frequently conduct mesothelioma clinical trials. Additionally, the National Cancer Institute maintains a searchable database of all registered clinical trials in the United States, which patients and doctors can use to find studies recruiting participants.^[16]

Most Common Treatment Methods

• Surgery
  • Pleurectomy and decortication removes the pleura and visible tumor tissue while preserving the lung
  • Extrapleural pneumonectomy removes the affected lung, pleura, diaphragm, and heart lining in extensive disease
  • Pleurodesis uses talc or other substances to prevent fluid buildup around the lungs
  • Debulking surgery removes as much cancer as possible to relieve symptoms
  • Cytoreductive surgery with HIPEC combines tumor removal with heated chemotherapy for peritoneal mesothelioma
• Chemotherapy
  • Cisplatin and pemetrexed combination is the standard first-line chemotherapy regimen
  • Drugs are given intravenously in cycles with rest periods between treatments
  • May be used before surgery to shrink tumors or after surgery to kill remaining cancer cells
  • Treatment typically continues for several months depending on response and tolerance
• Radiation Therapy
  • Adjuvant radiation after surgery targets the surgical area to kill remaining cancer cells
  • Palliative radiation shrinks tumors and relieves pain in advanced disease
  • Treatment involves multiple sessions over several weeks
• Immunotherapy
  • Nivolumab and ipilimumab combination blocks checkpoint proteins that prevent immune attack on cancer
  • Used as first-line treatment for patients who cannot undergo surgery
  • Given as intravenous infusions every few weeks
  • Works by activating the patient’s own immune system against cancer cells
• Targeted Therapy
  • Drugs that block specific growth signals or genetic mutations in cancer cells
  • Angiogenesis inhibitors prevent tumors from developing new blood vessels
  • Requires testing to determine if cancer has the specific target the drug attacks
  • Many targeted agents are currently being evaluated in clinical trials
• Multimodal Therapy
  • Combines two or more treatment types such as surgery, chemotherapy, and radiation
  • Aims to attack cancer from multiple angles for better outcomes
  • Sequence and combination varies based on cancer stage and patient health
  • Most effective in patients healthy enough to tolerate intensive treatment
• Palliative Care
  • Focuses on relieving symptoms and improving quality of life
  • Includes procedures to drain fluid from chest or abdomen
  • Pain management with medications and other interventions
  • Oxygen therapy and pulmonary rehabilitation for breathing difficulties
  • Can be provided alongside curative treatments at any stage

Managing Symptoms and Maintaining Quality of Life

Regardless of which treatment approach is chosen, managing symptoms remains a critical component of mesothelioma care. Palliative care specialists work alongside oncologists to address pain, breathing difficulties, fatigue, and other challenges patients face. This supportive care is not the same as hospice care; rather, it complements cancer treatment and can begin at any stage of the disease.^[15]

Pain management strategies may include medications ranging from over-the-counter pain relievers to stronger prescription opioids for severe pain. Other approaches such as nerve blocks, where medication is injected near nerves to block pain signals, can provide relief when cancer presses on chest wall nerves. Physical therapy and gentle exercise can also help manage pain while maintaining strength and mobility.^[22]

Breathing difficulties, one of the most distressing symptoms of pleural mesothelioma, can be addressed through several methods. Removing fluid that accumulates around the lungs provides immediate relief. Oxygen therapy helps patients whose lungs cannot deliver adequate oxygen to the blood. Pulmonary rehabilitation programs teach breathing exercises and energy conservation techniques that help patients manage shortness of breath during daily activities.^[9]

Nutrition often becomes challenging as mesothelioma and its treatments can reduce appetite and cause nausea. Working with a nutritionist can help patients maintain adequate nutrition through small, frequent meals, nutrient-dense foods, and nutritional supplements when needed. Proper nutrition supports the body’s ability to tolerate treatment and maintain strength.^[22]

Support Beyond Medical Treatment

Living with mesothelioma affects not only physical health but also emotional well-being and practical aspects of daily life. Many patients benefit from support beyond medical treatment to cope with the emotional challenges of a cancer diagnosis and maintain quality of life.

Support groups bring together people facing similar challenges, providing a sense of community and understanding that can be difficult to find elsewhere. These groups may meet in person at cancer centers or online, allowing patients and family members to share experiences, coping strategies, and emotional support. Some patients find comfort in connecting with long-term mesothelioma survivors who can offer hope and practical advice.^[19]

Individual counseling or therapy helps many patients and family members process the emotional impact of a mesothelioma diagnosis. Feelings of anxiety, depression, anger, and fear are normal responses to facing a serious illness. Mental health professionals experienced in working with cancer patients can provide strategies for managing these emotions and maintaining mental well-being throughout treatment.^[20]

Practical support is equally important. Mesothelioma treatment often requires frequent medical appointments, which can be physically exhausting and time-consuming. Family members, friends, or patient navigator programs can help with transportation to appointments, managing medication schedules, communicating with medical teams, and handling daily tasks that become difficult during treatment.^[21]

Many patients face financial stress due to treatment costs, lost income, and other expenses. Social workers at cancer centers can connect patients with financial assistance programs, help navigate insurance coverage, and provide information about disability benefits and other resources. For patients whose mesothelioma resulted from occupational asbestos exposure, legal consultation may be appropriate to explore compensation options.^[23]