What are gastroenteropancreatic neuroendocrine tumors (GEP-NETs)?
In order to understand GEP-NETs, it’s important to first understand neuroendocrine tumors (NETs).

NETs are tumors that can occur anywhere in the body, most often in the small intestine, pancreas, and rectum. NETs typically form in cells that make hormones. Some of these tumors make extra amounts of hormones that may cause symptoms of disease such as flushing and diarrhea.
Not all NETs are the same. They can be different in size, and some types grow faster than others.
GEP-NETs are cancers that form in the pancreas or in other parts of the gastrointestinal tract including the stomach, small intestine, colon, rectum, and appendix.
What is LUTATHERA?
LUTATHERA® (lutetium Lu 177 dotatate) is a prescription medicine used to treat adults with a type of cancer known as gastroenteropancreatic neuroendocrine tumors (GEP-NETs) that are positive for the hormone receptor somatostatin, including GEP-NETs in the foregut, midgut, and hindgut.
IMPORTANT SAFETY INFORMATION1
What is LUTATHERA?
LUTATHERA® (lutetium Lu 177 dotatate) is a prescription medicine used to treat adults with a type of cancer known as gastroenteropancreatic neuroendocrine tumors (GEP-NETs) that are positive for the hormone receptor somatostatin, including GEP-NETs in the foregut, midgut, and hindgut.
IMPORTANT SAFETY INFORMATION1
What are some important things to know about the safety of LUTATHERA?
LUTATHERA is associated with some serious safety considerations, and in some cases these may require your healthcare provider to adjust or stop your treatment. You should always follow your healthcare provider’s instructions. Safety considerations include:
What are the most common side effects of LUTATHERA?
The most common and most serious side effects of LUTATHERA include: vomiting, nausea, decreased blood cell counts, increased liver enzymes, decreased blood potassium levels, and increased blood glucose.
Talk to your doctor if you experience any of these side effects. There are other possible side effects of LUTATHERA. For more information, and to learn more about LUTATHERA, talk to your doctor or healthcare provider.
What other medicines may interact with LUTATHERA?
Tell your healthcare provider if you are taking any other medications. Somatostatin analogs and corticosteroids may affect how your LUTATHERA treatment works. You should stop taking your long-acting somatostatin analog at least 4 weeks before LUTATHERA treatment. You may continue taking short-acting somatostatin analogs up to 24 hours before your LUTATHERA treatment. Avoid repeated high doses of glucocorticosteroids during treatment with LUTATHERA.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.
Please see full Prescribing Information for LUTATHERA.
Distributed by: Advanced Accelerator Applications USA, Inc., NJ 07041
Reference: 1. LUTATHERA® [prescribing information]. Millburn, NJ: Advanced Accelerator Applications USA, Inc.; May 2020.