Small intestinal neuroendocrine tumours
Prepared with OnCo (onco.cc/prep/small-intestinal-net/). Orientation, not medical advice; your team knows your case.
My details
What I know, what is unclear, changes to discuss
Saved in this browserMy questions
23 on the sheet- 1.What is my exact diagnosis, stage, and grade, and which tests established them?
- 2.Which biomarkers have been tested on my tumour (for example Ki-67 index and mitotic count, Chromogranin A, 24-hour urinary 5-HIAA, Somatostatin receptor PET with gallium-68 or copper-64 DOTATATE, Echocardiography for carcinoid heart disease), and what were the results?
- 3.Which subtype is my cancer, and does that change the recommended treatment?
- 4.Is germline (inherited) genetic testing recommended for me or my family?
- 5.For my situation (diagnosis and staging), which of the standard options do you recommend and why?
- 6.Am I a candidate for Gallium-68 DOTATATE (and Cu-64 DOTATATE), and what side effects should I expect?
- 7.For my situation (localised or resectable disease), which of the standard options do you recommend and why?
- 8.For my situation (advanced, first line), which of the standard options do you recommend and why?
- 9.Am I a candidate for Somatostatin analogues (octreotide, lanreotide), Lutetium-177 dotatate, and what side effects should I expect?
- 10.How do the results of PROMID and CLARINET apply to someone like me?
- 11.For my situation (progression on a somatostatin analogue), which of the standard options do you recommend and why?
- 12.Am I a candidate for Lutetium-177 dotatate, Everolimus, Cabozantinib, and what side effects should I expect?
- 13.How do the results of NETTER-1 and RADIANT-3 and RADIANT-4 apply to someone like me?
- 14.For my situation (carcinoid syndrome), which of the standard options do you recommend and why?
- 15.Am I a candidate for Somatostatin analogues (octreotide, lanreotide), Telotristat ethyl, and what side effects should I expect?
- 16.For my situation (after radioligand therapy), which of the standard options do you recommend and why?
- 17.Am I a candidate for Everolimus, Cabozantinib, 177Lu-edotreotide or related drugs, and what side effects should I expect?
- 18.How do the results of COMPETE and ACTION-1 apply to someone like me?
- 19.Are there clinical trials I could join, for example of 177Lu-edotreotide, COMPETE, Actinium-225 DOTATATE, ACTION-1?
- 20.Would a second opinion at a high-volume centre change anything, and can you help arrange it?
- 21.What supportive care (symptom control, nutrition, exercise, mental health, financial help) is available from the start?
- 22.I read that “No randomised trial orders radioligand therapy, everolimus and cabozantinib after somatostatin analogues”. How does that affect my plan?
- 23.I read that “Whether removing the primary improves survival in patients with liver metastases has never been tested prospectively”. How does that affect my plan?
The words I may hear
- Carcinoid syndrome and carcinoid heart disease: Flushing, diarrhoea and wheezing caused by hormones (mostly serotonin) released by some neuroendocrine tumours; over years it can scar the heart valves.
- PRRT (peptide receptor radionuclide therapy): A radioactive drug for neuroendocrine tumours: a small peptide that homes to the somatostatin receptor on the tumour cells carries lutetium-177, which irradiates them from within.
- Chromogranin A: Chromogranin A is a protein released by neuroendocrine cells and measured in blood to follow tumour burden; it is unreliable because acid-reducing drugs and kidney disease also raise it.
- Neuroendocrine tumour grade (Ki-67) and WHO classification: How fast the tumour cells are dividing, measured by Ki-67 staining, separates slow-growing neuroendocrine tumours from aggressive neuroendocrine carcinomas and decides the treatment.
- Liver-directed therapy (TACE, TARE, HAI, ablation): The set of treatments aimed only at tumours in the liver, delivered through its artery or by needle, used when the liver is the main or only site of disease: chemoembolisation, radioactive beads, ablation and infusion pumps.
- Hepatectomy (liver resection): Cutting out the part of the liver containing tumour.
Tests and results to bring
Diagnosis and staging: Biopsy with Ki-67 grading, somatostatin receptor PET, cross-sectional imaging of the liver, chromogranin A and urinary 5-HIAA, echocardiography if carcinoid syndrome is present.
Biomarker results to ask for: Ki-67 index and mitotic count (WHO grade, nearly always grade 1 or 2), Chromogranin A (monitoring, raised by proton-pump inhibitors and kidney disease), 24-hour urinary 5-HIAA (carcinoid syndrome), Somatostatin receptor PET with gallium-68 or copper-64 DOTATATE (staging and radioligand eligibility), Echocardiography for carcinoid heart disease, Germline CDKN1B in familial small intestinal NET (rare).
Scans and tests linked to this cancer: PET/CT, Somatostatin receptor PET (68Ga/64Cu-DOTATATE).
Bring copies of scan reports, pathology and blood results, and a list of every medicine and supplement.
The treatments I may be offered
- Localised or resectable disease: Segmental small bowel resection with mesenteric lymphadenectomy, inspecting the whole small bowel for further primaries; the primary is often removed even when liver metastases are present. (Robotic & minimally invasive surgery, Hepatectomy (liver resection))
- Advanced, first line: Octreotide LAR or lanreotide (PROMID, CLARINET); lutetium-177 dotatate first line for grade 2 to 3 tumours with a Ki-67 of 10 percent or more (NETTER-2). (Somatostatin analogues (octreotide, lanreotide), PROMID, CLARINET, Lutetium-177 dotatate, Study to Evaluate the Efficacy and Safety of Lutathera in Patients With Grade 2 and Grade 3 Advanced GEP-NET, Peptide receptor radionuclide therapy (PRRT))
- Progression on a somatostatin analogue: Lutetium-177 dotatate (NETTER-1); everolimus (RADIANT-4); cabozantinib (CABINET); liver-directed therapy for hepatic-dominant disease. (Lutetium-177 dotatate, NETTER-1, Everolimus, RADIANT-3 and RADIANT-4, Cabozantinib, CABINET (Alliance A021602), Transarterial chemoembolisation (TACE), Radioembolisation (TARE / SIRT, yttrium-90), Thermal ablation (RFA, microwave, cryo), Liver-directed therapy (TACE, TARE, HAI, ablation))
- Carcinoid syndrome: Somatostatin analogue dose escalation, telotristat ethyl for refractory diarrhoea, octreotide infusion around procedures to prevent carcinoid crisis, valve surgery for carcinoid heart disease. (Somatostatin analogues (octreotide, lanreotide), Telotristat ethyl, Carcinoid syndrome and carcinoid heart disease)
- After radioligand therapy: Everolimus or cabozantinib; 177Lu-edotreotide if approved; alpha-emitting radioligands and retreatment in trials. (Everolimus, Cabozantinib, 177Lu-edotreotide, COMPETE, Actinium-225 DOTATATE, ACTION-1, 212Pb-DOTAMTATE)
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.