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Condition Guide

New Treatments & Clinical Trials for Mesothelioma

Last updated June 2026Data from ClinicalTrials.gov149 active trials
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Mesothelioma is a rare cancer of the lining surrounding the lungs, heart, or abdomen, caused by asbestos exposure decades earlier. About 3,000 people are diagnosed in the US each year. Treatment typically combines surgery, chemotherapy, and sometimes radiation, but outcomes remain difficult and most people survive 12-21 months after diagnosis.

What's actually going on in research

Trials are testing immunotherapy combinations that harness the immune system against mesothelioma cells, targeted therapies aimed at specific mutations found in some tumors, and new chemotherapy regimens. Researchers are also studying tumor-treating fields (electrical therapy), gene therapy, and ways to improve surgical outcomes. Some trials focus on asbestos-related lung changes before cancer develops.

Immunotherapy combinations

Nivolumab plus ipilimumab (two checkpoint inhibitors) received FDA approval in 2020 for unresectable mesothelioma. Trials are now testing checkpoint inhibitors with chemotherapy, with vaccines, or with other immune drugs to see if combinations work better than single agents.

Targeted therapy

About 20-25% of mesotheliomas have BAP1 mutations, and smaller numbers have other actionable changes. Trials are testing drugs that target these specific mutations, which could offer treatment tailored to a tumor's genetics.

Tumor-treating fields

A wearable device delivers low-intensity electric fields to disrupt cancer cell division. FDA-approved for glioblastoma, it's now being studied in mesothelioma alongside chemotherapy to see if it extends survival.

What to know before you search

Eligibility typically depends on mesothelioma type (pleural, peritoneal, or other), whether the cancer can be surgically removed, prior treatments received, and performance status measuring how well you function day-to-day.

What types of trials are currently open

  • Immunotherapy trialsTesting checkpoint inhibitors alone or combined with chemotherapy, other immune drugs, or vaccines. Most require measurable disease and no prior immunotherapy.
  • Surgery trialsComparing surgical approaches (lung-sparing surgery versus more extensive removal) and testing treatments given during or right after surgery.
  • Targeted therapy trialsTesting drugs matched to specific mutations in your tumor, usually requiring tumor tissue testing before enrollment.
  • Chemotherapy trialsTesting new chemotherapy drugs or combinations, often for people whose cancer has grown after standard treatment.
  • Device and radiation trialsStudying tumor-treating fields, new radiation techniques, or photodynamic therapy that activates light-sensitive drugs.

Recently added Mesothelioma trials

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