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Understanding Cachexia in Pancreatic Cancer

Learn about cachexia in pancreatic cancer, its causes, treatments like PERT, and how to manage this challenging condition effectively.

Plate of fruits, vegetables, and a PERT pill, showing the possible role of enzyme therapy in improving nutrition.
A plate of fruits and vegetables with a pancreatic enzyme placed alongside.

Cachexia in Pancreatic Cancer

Cachexia is a tough condition that affects many people living with pancreatic cancer. It’s more than just weight loss—it’s a serious, complex syndrome that causes muscle wasting, severe weight loss, and sometimes fat loss. Unlike typical weight loss, cachexia can’t be fixed with just nutritional support alone. It’s especially common in the advanced stages of pancreatic cancer, with up to 80% of patients experiencing it.


How Common Is Cachexia?

Cachexia is unfortunately widespread in pancreatic cancer and brings with it some pretty serious challenges for patients. Here are some key stats:

70% of patients experience weight loss by the time they’re diagnosed.

40% lose more than 10% of their body weight.

63–64% will develop cachexia as their illness progresses.


This condition doesn’t just affect weight—it leads to worse outcomes, like:

• Shortened survival time.

• Difficulty tolerating chemotherapy.

• More side effects from treatments.

• A lower overall quality of life.

The Role of Pancreatic Enzymes in Cachexia

Recent research has shown that pancreatic enzymes play a big part in cachexia. Understanding their role is opening up new ways to manage the condition.


Pancreatic Exocrine Insufficiency (PEI)

PEI is one of the major contributors to cachexia in pancreatic cancer. It happens when the pancreas can’t produce enough digestive enzymes, which leads to:

• Lower levels of fecal elastase, an enzyme necessary for digestion.

• Accelerated fat loss, which only worsens the cycle of muscle and weight loss.

• A direct link between low fecal elastase-1 levels and poor survival outcomes.

Pancreatic Enzyme Replacement Therapy (PERT)


Thankfully, there’s some good news in the form of Pancreatic Enzyme Replacement Therapy (PERT). Early research suggests it can be really helpful in treating PEI and easing the symptoms of cachexia. PERT works in several ways:

Restoring Gut Health: It helps balance the gut microbiome, encouraging beneficial bacteria like Lactobacillus reuteri and Akkermansia.

Boosting Nutrient Absorption: PERT makes it easier for the body to absorb nutrients, which can improve overall health.

Enhancing Chemotherapy Tolerance: With better nutrition, patients can better handle chemotherapy and stick to their treatment plans.

Why Does Cachexia Happen?

Cachexia in pancreatic cancer doesn’t have just one cause—it’s a combination of things that work together:

1. Metabolic Changes: Pancreatic cancer messes with the body’s ability to use energy.

2. Pancreatic Damage: The pancreas struggles to support digestion and hormone production.

3. Inflammation: Inflammatory markers like IL-6 and TNF are high in patients and contribute to muscle and fat loss.

4. Fat Breakdown: The body starts burning fat at an accelerated rate, causing even more weight loss.


Ongoing Research: The PAC-MAIN Study

One study that’s digging into how pancreatic exocrine insufficiency and poor nutrition affect outcomes is the PAC-MAIN study. Researchers are looking at:

• How nutritional status influences survival rates in pancreatic cancer.

• How PEI affects patients’ ability to stick to chemotherapy in the first few months after diagnosis.


This study aims to provide more insight into the role of pancreatic enzymes in treating cachexia.


Managing Cachexia


Managing cachexia isn’t just about one thing—it takes a multi-faceted approach. Here’s a look at some strategies that may help:

1. Nutritional Support: While important, nutritional support alone isn’t enough to tackle cachexia.

2. Medications:

• Appetite stimulants like megestrol acetate.

• Ghrelin to help preserve muscle mass.

• Anti-inflammatory drugs to reduce inflammation.

3. Exercise: Keeping muscles active when possible can help prevent further muscle loss.

4. Emerging Treatments:

Ponsegromab: This drug has shown promise in clinical trials, helping patients gain 2–6 pounds over 12 weeks.

Tocilizumab: This treatment has helped reduce muscle loss in patients undergoing chemotherapy.

5. Pancreatic Enzyme Therapy: PERT can make a real difference in how well patients absorb nutrients, improve their gut health, and better tolerate treatments.


Looking Ahead

Cachexia is a huge challenge for people with pancreatic cancer. But thanks to ongoing research into pancreatic enzymes and therapies like PERT, there’s hope. These treatments could improve quality of life, help with better nutrition, and give patients a better shot at sticking with their cancer treatments.

If you’re living with pancreatic cancer, it’s important to know that nearly everyone with this condition will experience some degree of pancreatic insufficiency. If your doctor, nurse, or dietitian hasn’t talked to you about pancreatic enzymes, it’s worth asking about them. And if you need PERT, you’ll likely need to take it for the rest of your life, as your pancreas won’t start making enzymes again on its own.

This webinar from PANCAN features discussions on nutrition for pancreatic cancer patients, including the role of pancreatic enzymes, strategies for managing cachexia, and the latest research on the condition.

What is cachexia in pancreatic cancer?

Cachexia is a serious condition where people lose a lot of weight and muscle, and sometimes fat, due to pancreatic cancer. It’s not just normal weight loss and can’t be fixed by eating more.

How common is cachexia in pancreatic cancer?

Cachexia is very common in people living with pancreatic cancer. Up to 80% of people in advanced stages experience it. By the time of diagnosis, about 70% have already lost weight, and 40% have lost more than 10% of their body weight.

What causes cachexia in pancreatic cancer?

Cachexia happens because of changes in the body caused by cancer. These include inflammation, damage to the pancreas, and the body breaking down fat and muscle faster. Tumors also release chemicals that make it harder for the body to use nutrients.

How does cachexia impact pancreatic cancer treatment and prognosis?

Cachexia makes it harder for people to handle treatments like chemotherapy, increases side effects, and lowers quality of life. It also shortens survival time and is a factor in about 25% of cancer-related deaths.

What is Pancreatic Exocrine Insufficiency (PEI) and how does it relate to cachexia?

PEI happens when the pancreas doesn’t produce enough digestive enzymes. This leads to poor nutrient absorption and weight loss, which can make cachexia worse.

What is Pancreatic Enzyme Replacement Therapy (PERT)?

PERT is a treatment that provides the digestive enzymes the pancreas can no longer make. It helps people absorb nutrients better, supports gut health, and makes it easier to handle chemotherapy.

Can cachexia be prevented or reversed?

Cachexia can’t be completely prevented or reversed, but it can be managed to slow its effects. This includes using treatments like PERT, along with proper nutrition, exercise, and medications.

What role do inflammatory markers play in cachexia?

Inflammatory markers, like IL-6 and TNF, are higher in people with pancreatic cancer. These markers play a key role in the muscle and fat loss seen in cachexia.

Are there any promising new treatments for cachexia?

Yes, there are new treatments being tested, like ponsegromab and tocilizumab. Early trials show they may help manage cachexia and improve symptoms.

How important is it to discuss pancreatic enzyme therapy with my healthcare team?

It’s very important to talk to your healthcare team about pancreatic enzyme therapy. Most people with pancreatic cancer will need it, as it can improve how your body absorbs nutrients and boost your quality of life.

Reference List 📚

1. “Pancreatic Cancer Cachexia: Three Dimensions of a Complex Syndrome.” PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC8110983/.

2. “Pancreatic Cancer and Cachexia—Metabolic Mechanisms.” PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC7352917/.

3. “Management of Pain and Cachexia in Pancreatic Cancer.” Research Protocols, https://www.researchprotocols.org/2023/1/e46335.

4. “Pancreatic Cancer Malnutrition and Pancreatic Exocrine Insufficiency.” Frontiers in Medicine, https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2020.00495/full.

5. “Ponsegromab Potentially Effective Against Cachexia.” National Cancer Institute, https://www.cancer.gov/news-events/press-releases/2022/ponsegromab-effective-cachexia.

6. “Cachexia Research Showing Promise.” Let’s Win Pancreatic Cancer, https://letswinpc.org/cachexia-research-showing-promise/.

7. “Effect of Cancer Cachexia on First-Line Chemotherapy.” Springer Link, https://link.springer.com/article/10.1007/s10147-023-01857-3.

8. “Understanding and Treating Pancreatic Cancer Cachexia.” AACR Blog, https://www.aacr.org/blog/understanding-and-treating-pancreatic-cancer-cachexia/.

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Team Heather is Canada’s newest advocacy publication for people living with Pancreatic Cancer offering up-to-date guidelines, access to supports and more.