Faculty Collaboration Database

Systemic Therapy for Tumor Control in Metastatic Well-Differentiated Gastroenteropancreatic Neuroendocrine Tumors: ASCO Guideline. J Clin Oncol 2023 Nov 10;41(32):5049-5067

Date

09/29/2023

Pubmed ID

37774329

DOI

10.1200/JCO.23.01529

Scopus ID

2-s2.0-85176509017 (requires institutional sign-in at Scopus site)   7 Citations

Abstract

PURPOSE: To develop recommendations for systemic therapy for well-differentiated grade 1 (G1) to grade 3 (G3) metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs).

METHODS: ASCO convened an Expert Panel to conduct a systematic review of relevant studies and develop recommendations for clinical practice.

RESULTS: Eight randomized controlled trials met the inclusion criteria for the systematic review.

RECOMMENDATIONS: Somatostatin analogs (SSAs) are recommended as first-line systemic therapy for most patients with G1-grade 2 (G2) metastatic well-differentiated GI-NETs. Observation is an option for patients with low-volume or slow-growing disease without symptoms. After progression on SSAs, peptide receptor radionuclide therapy (PRRT) is recommended as systematic therapy for patients with somatostatin receptor (SSTR)-positive tumors. Everolimus is an alternative second-line therapy, particularly in nonfunctioning NETs and patients with SSTR-negative tumors. SSAs are standard first-line therapy for SSTR-positive pancreatic (pan)NETs. Rarely, observation may be appropriate for asymptomatic patients until progression. Second-line systemic options for panNETs include PRRT (for SSTR-positive tumors), cytotoxic chemotherapy, everolimus, or sunitinib. For SSTR-negative tumors, first-line therapy options are chemotherapy, everolimus, or sunitinib. There are insufficient data to recommend particular sequencing of therapies. Patients with G1-G2 high-volume disease, relatively high Ki-67 index, and/or symptoms related to tumor growth may benefit from early cytotoxic chemotherapy. For G3 GEP-NETs, systemic options for G1-G2 may be considered, although cytotoxic chemotherapy is likely the most effective option for patients with tumor-related symptoms, and SSAs are relatively ineffective. Qualifying statements are provided to assist with treatment choice. Multidisciplinary team management is recommended, along with shared decision making with patients, incorporating their values and preferences, potential benefits and harms, and other characteristics and circumstances, such as comorbidities, performance status, geographic location, and access to care.Additional information is available at www.asco.org/gastrointestinal-cancer-guidelines.

Author List

Del Rivero J, Perez K, Kennedy EB, Mittra ES, Vijayvergia N, Arshad J, Basu S, Chauhan A, Dasari AN, Bellizzi AM, Gangi A, Grady E, Howe JR, Ivanidze J, Lewis M, Mailman J, Raj N, Soares HP, Soulen MC, White SB, Chan JA, Kunz PL, Singh S, Halfdanarson TR, Strosberg JR, Bergsland EK

Author

Sarah B. White MD, MS, FSIR, FCIRSE Associate Dean, Vice Chair, Professor in the Radiology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Everolimus
Humans
Intestinal Neoplasms
Neuroendocrine Tumors
Pancreatic Neoplasms
Practice Guidelines as Topic
Somatostatin
Stomach Neoplasms