Tryngolza (olezarsen) is an prescription medication used along with a low-fat diet to lower triglyceride (fat) levels in adults with familial chylomicronemia syndrome (FCS). It’s an injection given once a month under the skin, either around the stomach or the outer thigh. Injections can also be given in the back of the upper arm if someone else is helping you. Potential side effects include injection site reactions such as swelling, redness, and irritation where the medication was injected.
People who have FCS have problems breaking down triglycerides, leading to very high levels of triglycerides in their blood. This raises the risk for a serious condition called pancreatitis, or inflammation of the pancreas.
Tryngolza (olezarsen) is an APOC-III antisense oligonucleotide (ASO). It works on apolipoprotein C-III (apoC-III), a protein responsible for keeping triglycerides (fats) in the blood. Specifically, it blocks the creation of apoC-III so less of it is made. This helps your body break down triglycerides more easily, which lowers levels of triglycerides in the blood.
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Contact your healthcare provider immediately if you experience any of the following.
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
How to use Tryngolza (olezarsen)
Familial chylomicronemia syndrome (FCS) is a very rare condition that runs in families and is usually caused by mutations in an enzyme called lipoprotein lipase (LPL). It causes the body to have problems breaking down triglycerides (fat) correctly. This leads to a buildup of triglycerides in the body. If left untreated, this condition can cause symptoms like pancreatitis (inflammation of the pancreas), xanthomas (yellow bumps on the skin), and stomach pain. There is currently no cure for FCS, but Tryngolza is an option to help lower triglyceride levels.
Right now, there’s no data to show if Tryngolza is safe to use while pregnant. However, people with FCS have an even higher risk of pancreatitis during pregnancy because triglyceride levels naturally go up. Talk with your prescriber before starting Tryngolza if you’re pregnant or planning on becoming pregnant.
One study examining Tryngolza showed that the medication started to lower triglyceride levels after about 1 month of treatment when used along with a low-fat diet. However, everyone will respond differently. So speak with your prescriber if you have more questions.
Yes, you must continue to lower your fat intake while taking Tryngolza. The medication is designed to be used by people who follow a low-fat diet. Limit your fat intake to 10-15% of your daily calorie intake, and try to eat more vegetables, whole grains, beans and lentils, and lean protein.
Yes, Tryngolza is the first FDA-approved medication for familial chylomicronemia syndrome (FCS). It’s also the first APOC-III antisense oligonucleotide (ASO) in its class. It was approved for use in the U.S. on December 19th, 2024.
In one study, people receiving 80 mg of Tryngolza had nearly a 44% drop in their fasting triglyceride level after 6 months of treatment compared to those receiving a placebo. After about 1 year, people receiving Tryngolza still had significantly lower triglyceride levels (about a 57% reduction in people receiving 80 mg) compared to people receiving a placebo.
Tryngolza (olezarsen) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Some people taking Tryngolza (olezarsen) have had allergic reactions. Symptoms of an allergic reaction can include difficulty breathing, facial swelling, hives, muscle pain, and chills. Stop taking Tryngolza (olezarsen), seek immediate medical attention, and contact your prescriber if you have any of these symptoms.
The typical dose is 80 mg injected under the skin once a month.
Contraindications are specific health conditions or situations in which a person should not take a medication due to safety concerns. If you have any of the following conditions or if any of the following apply to you, let your healthcare provider know because Tryngolza (olezarsen) will not be safe for you to take.