Dr. Jaydira Del Rivero and Dr. Kimberly Perez discuss the latest ASCO guideline featuring evidence-based recommendations on systemic therapy for well-differentiated grade 1 to grade 3 metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs). They discuss the recommendations, insights from the guideline expert panel, impact for clinicians and patients, and outstanding questions in the field. Read the full guideline update, "Systemic Therapy for Tumor Control in Metastatic Well-Differentiated Gastroenteropancreatic Neuroendocrine Tumors: ASCO Guideline” at www.asco.org/gastrointestinal-cancer-guidelines.