4 Things to Know About Chemotherapy for Peritoneal Mesothelioma
Written by Katy Moncivais, PhD on February 26, 2025
Mesothelioma treatment options have expanded in recent years. But chemotherapy is still the most common approach for peritoneal cases. There are good reasons for this, though.
Chemo-based treatments work quite well for peritoneal mesothelioma. But plans vary quite a bit between patients. Keep reading to learn which types of chemo can help with this abdominal form of mesothelioma.
Mesothelioma is an asbestos-linked cancer. It develops in the linings of certain tissues and organs. Pleural mesothelioma, the most common form, arises in the lining around the lung. Peritoneal mesothelioma develops in the lining of the abdomen. It’s about 5 times less common than the pleural form.
Learn More About Peritoneal Mesothelioma1: Local Chemotherapy Is Common for Peritoneal Patients
You may not know this, but chemotherapy can come in many forms. For peritoneal mesothelioma, the most common types are systemic and local:
- Systemic: Chemotherapy drugs travel throughout the body in the bloodstream.
- Local: Chemotherapy drugs are given only to a specific area of the body, like the abdomen.
Peritoneal tumors develop in areas that don’t get a lot of direct blood flow. So systemic chemo may not reach them. Because of this, doctors often recommend local approaches for patients who can tolerate them. This puts the chemo drugs directly in the area where the tumors grow.
Types of local chemotherapy include HIPEC, NIPEC and PIPAC.
HIPEC stands for heated intraperitoneal chemotherapy. Patients often receive it directly after surgery.
Learn More About HIPECNIPEC stands for normal temperature intraperitoneal chemotherapy. Patients may receive it days after surgery.
Learn More About NIPECPIPAC stands for pressurized intraperitoneal aerosol chemotherapy. Patients may receive it before or instead of surgery.
Learn More About PIPACDoctors consider many factors when making mesothelioma treatment recommendations. Some patients may not qualify for local chemo. But if not, systemic approaches are usually still an option. Both approaches can extend survival and may occur alongside surgery.
2: Chemo Is Often Part of a Combination Treatment Plan
Many patients undergo treatment with chemotherapy and surgery. This happens with both systemic and local forms of chemo. Combination treatment is also known as multimodal therapy. Combining different forms of treatment can help boost life expectancy.
Treatment for many peritoneal patients involves surgery followed by systemic or local chemo. In one study, more than 60% of patients received some type of chemotherapy. Nearly 40% of the study patients received surgery and chemo.
Treatment plans vary widely based on many factors. These include age, sex and the mesothelioma cell type. Talk to your doctor about your specific case to see which treatments could be right for you.
3: Survival Varies Based on the Type of Chemo
Peritoneal mesothelioma prognosis can vary quite a bit between patients. These differences are linked to many factors, including treatment plans and health status. And these factors can affect each other. For example, a person in poor health may not be able to withstand surgery. So systemic chemo may be their only option.
In general, plans that include local chemo rather than systemic often lead to a better prognosis. In one study, peritoneal patients treated with systemic chemo had a median survival of about 13 months. For patients treated with surgery and HIPEC, median survivals range from 4 to 8 years.
Again, the type of chemo they receive is only one of many factors that influence patient life expectancy. Talk to a specialist about the best treatment options for your specific case.
4: Chemo Research Is Ongoing
Treatment options for peritoneal mesothelioma have never been better than today. But research is ongoing. Multiple clinical trials are looking into new chemo treatment options.
One trial will compare systemic versus local chemo after surgery. Others are investigating using new drugs and combinations of them. If you’re curious about enrolling in a trial, you can discuss the options with a mesothelioma specialist. Doctors who focus on this rare cancer have the experience and training to help. They can explain which trials or treatments could be the best options for you.
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Katy Moncivais, Ph.D., has more than 15 years of experience as a medical communicator. As the Medical Editor at Mesothelioma.com, she ensures our pages and posts present accurate, helpful information.