By Daniel F. Vatner, MD, PhD, as told to Keri Wiginton
If you have severe hypertriglyceridemia, the main goal is to head off serious health problems, especially acute pancreatitis.
Doctors still care a lot about long-term risks like heart disease and stroke. But in day-to-day treatment, what really drives decisions is keeping your triglycerides out of the danger zone for the pancreas.
A common cutoff for “severe” is fasting triglycerides above 500 mg/dL. Crossing that line doesn’t mean you’ll automatically get pancreatitis. But if you’re in that range, things like illness, uncontrolled diabetes, a very high-fat meal, or alcohol can push levels much higher, into a zone where they’re more likely to inflame the pancreas.
Pancreatitis isn’t just painful. It can be life-threatening. The good news is that there are more options than ever to help bring your triglycerides down and keep them in the safe range.
What Treatment Looks Like Today
We have a lot of tools to treat severe hypertriglyceridemia, including diet changes, physical activity, medicines that lower triglycerides, and drugs that protect your heart and blood vessels.
Newer medications with different targets also give us more options for people with genetic conditions like familial chylomicronemia syndrome, or FCS, and for some people who keep getting pancreatitis from very high triglycerides.
Your treatment depends on how high your triglycerides are, why they’re high, and what we’re trying to prevent.
If your triglycerides are extremely high and you come to the ER with acute pancreatitis, the first step is to bring those levels down fast. One of the most effective ways to do that is not eating for a period of time, usually in the hospital. If no fat is coming in through your diet, your body can start clearing triglycerides from the blood.
Fasting isn’t meant to be a long-term plan for everyday life. But it’s an important part of short-term treatment when triglycerides are in the thousands, especially if you already have pancreatitis.
If your triglycerides are around 880-1,000 mg/dL or higher, cutting way back on fat is key. At that level, most medicines won’t do much: Triglycerides need to come down enough for the body to be able to handle them efficiently. I may still start medication during this phase, but I explain that it probably won’t have its full effect until the numbers come down.
If your triglycerides are in the 500-1,000 mg/dL range, we have more room to use triglyceride-lowering drugs to help prevent major spikes into the dangerous range. That’s often when these medicines are most useful.
When triglycerides are only mildly or moderately high, the focus often shifts to lowering heart attack and stroke risk. In that situation, cholesterol-lowering medicines like statins usually play a central role, and triglyceride-specific drugs may or may not be needed.
The Role of Medications in Treatment
Most people with severe hypertriglyceridemia need more than one tool at a time, usually a mix of lifestyle changes and medicines.
One of the first drugs we often use is a statin. Statins are cholesterol-lowering medicines. They usually don’t make a huge dent in very high triglycerides, but they can lower them a bit and are one of our best ways to cut the risk of heart attack and stroke.
Other cholesterol-lowering medicines, such as PCSK9 inhibitors and bempedoic acid, may also lower triglycerides a little while protecting your heart and blood vessels.
To target triglycerides more directly, we have
- Fibrates (fenofibrate and gemfibrozil)
- Omega-3 fatty acids (ethyl esters and icosapent ethyl)
We typically use prescription high-dose omega-3 fatty acids to lower triglycerides. If you use over-the-counter fish oil, that can mean taking handfuls of capsules, and supplements aren’t regulated the same way medications are. Ask your doctor before you use them.
Niacin (vitamin B3) can also lower triglycerides, but we use it less often now because of side effects. Still, high-dose niacin may be worth considering in some cases.
A Recent Advance: APOC-III Inhibitors
One of the biggest recent advances in treating severe hypertriglyceridemia is a new group of drugs called APOC-III inhibitors.
APOC-III is a protein that helps control how your body handles triglycerides. These medicines block the APOC-III pathway, which can lower triglycerides dramatically compared to prior drugs. In the U.S., this includes olezarsen (Tryngolza) and plozasiran (Redemplo).
Plozasiran is approved for adults with FCS. Olezarsen is approved for adults with FCS and, more recently, to lower triglycerides and the risk of acute pancreatitis in adults with severe hypertriglyceridemia.
These drugs are an especially important advance for people with familial chylomicronemia syndrome, where it can be very hard to control triglycerides with diet and standard medicines alone.
Even with major lifestyle changes, people with FCS often stay in the very high range or keep having pancreatitis, so having these newer options is a big step forward for this group.
Why Newer Drugs Aren’t Automatic
Even with these promising new medicines, treatment isn’t always straightforward, and cost and insurance coverage can be major hurdles.
If someone has FCS and severe pancreatitis, I would absolutely look into whether one of these newer medicines is an option their insurer will cover.
For people with severe hypertriglyceridemia and repeated episodes of acute pancreatitis, but not classic FCS, I’d still consider them. But access depends on the specific medicine, the FDA-approved use, and the person’s situation.
We also have to think about side effects and long-term safety.
These medicines are still relatively new, and different studies have reported different effects beyond lowering triglycerides. Some effects may turn out to be beneficial. Others may raise safety questions or need closer follow-up.
For the right person, APOC-III inhibitors are an exciting new option to lower very high triglycerides. If you start one, your doctor will monitor you closely to see how much your triglycerides drop and to watch for any possible side effects.
Better Diagnosis Starts With a Blood Test
You can’t feel your triglyceride level. Most people with very high triglycerides feel fine until something serious happens, like pancreatitis. The only way to know what your levels are is a blood test, which is why lipid screening (checking cholesterol and triglycerides) matters.
More guidelines now support checking cholesterol and triglycerides earlier in life, around age 10. Most kids won’t have extremely high levels. But in rare genetic conditions like FCS, triglycerides can be very high in childhood, and pancreatitis can happen early.
For FCS, diagnosis is often clearer because we know specific gene changes to look for, and genetic testing can help confirm it.
But the more common situation is polygenic hypertriglyceridemia. That means many different genes each add a little to your risk. There’s no simple genetic test for that. Instead, your doctor pieces things together by looking at your triglyceride numbers over time and checking for other factors than can raise them.
What This Means If You Have FCS
If you have FCS, your treatment will often look different from someone whose high triglycerides stem from a secondary cause, such as a health condition like diabetes, metabolic syndrome, or low thyroid.
Because your body has a harder time clearing triglycerides from the blood, you usually need stricter dietary changes, especially with fat intake. Some standard treatments that help others, such as omega-3 fish oils, may not work well for you and, in some cases, can even raise triglycerides.
The newer APOC-III inhibitors are the most meaningful recent change for people with FCS. They can lower triglycerides much more than standard drugs and may give people with FCS better protection from pancreatitis than we’ve had before.
Even so, these drugs don’t replace the need for a care team and long-term treatment plan. You still need to pay careful attention to diet, regular follow-up, and avoiding triggers that can push triglycerides into the unsafe zone.
What This Means If You Don’t Have FCS
Most people with severe hypertriglyceridemia don’t have FCS. Instead, you’re more likely to have a natural tendency toward high triglycerides plus something else that pushes levels higher: uncontrolled high blood sugar, insulin resistance, weight gain, low thyroid, alcohol use, or a high-fat or high-sugar diet.
For this group, treatment often means combining several steps, such as:
- Getting blood sugar under control if you have diabetes
- Treating low thyroid if that is part of the problem
- Stopping alcohol
- Changing the amount and type of fat and sugar/carbs in your diet
- Adding regular physical activity
- Using medicines based on your triglycerides and your heart and pancreas risks
- Losing pounds if you’re overweight
If your triglycerides stay very high or you keep having pancreatitis, that’s a good time to talk with a specialist (such as an endocrinologist, cardiologist, or doctor at a lipid clinic) about whether newer treatment options might be right for you.
What About GLP-1 Medicines?
Some people with severe hypertriglyceridemia also have diabetes, weight concerns, or metabolic syndrome, so it’s natural to ask about GLP-1 medicines (like semaglutide and similar drugs).
There has been concern because some people on GLP-1s develop belly pain and a rise in lipase, a blood test doctors also use when they’re checking for pancreatitis. That’s why these drugs sometimes get linked to pancreatitis risk. But for many people, the benefits may still outweigh the risks.
If you’re taking a GLP-1 and get new or severe belly pain, call your doctor. Your care team may pause the medicine while they figure out what’s going on and decide whether it’s safe for you to keep using it.
What Follow-Up Looks Like
In the beginning, you’ll likely need to check in with your care team more often. Some clinics do this through in-person visits with your main doctor, but you may be able to see a nurse or use telehealth.
Until your triglycerides are under good control, touching base about every three months may make sense. Plan on yearly visits and labs once your levels are stable.
Triglycerides usually don’t jump from controlled to dangerously high for no reason. But they can rise quickly, even within days, if there’s a strong trigger. That’s why follow-up matters, even when things are going well.
The Future of Treatment
The outlook for severe hypertriglyceridemia is generally very good when triglycerides can be brought under control. We have a growing number of tools to lower the risk of pancreatitis and to protect your heart and blood vessels.
At the same time, I don’t want to minimize the work involved. For many people, especially those with FCS or repeated pancreatitis, keeping triglycerides controlled can take a lot of effort when it comes to what you eat and drink and managing medications or other health conditions.
The newer APOC-III medicines are an important advance for some people. When they’re a good fit, they can lower very high triglycerides and lessen your chances of pancreatitis, especially if lifestyle changes and standard treatments haven’t been enough.
I expect treatment options to keep improving. As newer therapies become more available, we may be able to help more people prevent pancreatitis and live with fewer restrictions.
For now, the best plan depends on your triglyceride level, pancreatitis history, heart risk, genes, and what you can realistically do day to day. And if you’re doing the work but your levels stay very high, ask whether a specialist or a different treatment should be part of your care.
