The United States Food and Drug Administration has recently approved cabozantinib (Cabometyx) for patients with previously treated advanced neuroendocrine tumors. This is an oral tyrosine kinase inhibitor, which is offering a new standard for care of this patient group. This has been announced by the Dana-Farber Cancer Institute. How Was The Drug Approved?The approval came on the bases of the results from the phase 3 CABINET study. The study compared cabozantinib to a placebo in patients with advanced pancreatic neuroendocrine tumors. As per the National Cancer Institute, neuroendocrine tumor grows from neuroendocrine cells. These cells receive and send messages through hormones to help the body function. These cells are found in organs throughout the body. The neuroendocrine tumor was called carcinoid tumor These tumors grow very slowly and are mostly found in appendix, also known as appendiceal neuroendocrine tumors. When found in lungs, they are also called bronchial tumors. These areas are more common in children and young adults. Whereas for adults, it is mostly found in the digestive tract, called the GI neuroendocrine tumor. What makes it concerning is that it can also spread to other parts of the body but does so more in adults than in children. They are rare in children and more common in adults, affecting up to 4 in 100,000 adults. The drug which FDA has approved based on the phase 3 CABINER study's results have been published last September in the New England Journal of Medicine. Patients who were treated with cabozantinib survived significantly longer with no worsening of their disease compared with patients who received placebo. This also improved the efficacy as was observed in the interim analysis. The trial was in fact terminated early and unblinded in August 2023. Are There Any Side Effects From The FDA Approved Drugs?The reported side effects of cabozantinib were similar to those found in other studies of the drug. They include:HypertensionFatigueDiarrhea"Patients with neuroendocrine tumors often face a difficult journey," lead author of the CABINET study, Jennifer Chan, M.D., M.P.H., of the Dana-Farber Cancer Institute, said in a statement. "Despite advances in recent years, there has remained a critical need for new and effective therapies for patients whose cancer has grown or spread. Cabozantinib significantly improved outcomes in this patient population and this FDA approval provides new hope."How Is Neuroendocrine tumor diagnosed?While some people have symptoms, others may do not have any symptoms. These symptoms depends on where in your body the tumor has grown. Patients who have appendiceal neuroendocrine tumors may have symptoms of appendicitis, such as pain in abdomen. They could also be later diagnosed with carcinoid tumor in case the doctor removes the appendix and finds a tumor. Patients with carcinoid tumor in other parts of the digestive tract may have symptoms such as:Pain in the abdomenNausea or vomitingDiarrheaOther ways to detect is by lab tests, imaging, and biopsy.