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A Practical Guide for the Production and PET/CT Imaging of 68Ga-DOTATATE for Neuroendocrine Tumors in Daily Clinical Practice
Published on: April 17, 2019
Monitoring and Surveillance of Patients with Gastroenteropancreatic Neuroendocrine Tumors Undergoing Radioligand
Thorvardur R Halfdanarson1, Nadine Mallak2, Scott Paulson3
1Mayo Clinic, Rochester, MN 55905, USA.
Abstract:
Radioligand therapy (RLT) with [177Lu]Lu-DOTA-TATE is a standard of care for adult patients with somatostatin-receptor (SSTR)-positive gastroenteropancreatic neuroendocrine tumors (GEP-NETs). Taking advantage of this precision nuclear medicine approach requires diligent monitoring and surveillance, from the use of diagnostic SSTR-targeted radioligand imaging for the selection of patients through treatment and assessments of response. Published evidence-based guidelines assist the multidisciplinary healthcare team by providing acceptable approaches to care; however, the sheer heterogeneity of GEP-NETs can make these frameworks difficult to apply in individual clinical circumstances. There are also contradictions in the literature regarding the utility of novel approaches in monitoring and surveilling patients with GEP-NETs receiving RLT. This article discusses the emerging evidence on imaging, clinical biochemistry, and tumor assessment criteria in the management of patients receiving RLT for GEP-NETs; additionally, it documents our own best practices. This allows us to offer practical guidance on how to effectively implement monitoring and surveillance measures to aid patient-tailored clinical decision-making.
Insights
Radioligand therapy (RLT) for neuroendocrine tumors requires careful monitoring. This article provides practical guidance on imaging and assessment for tailored patient care.
Area of Science:
- Nuclear medicine
- Oncology
- Radiopharmaceutical therapy
Background:
- 177Lu]Lu-DOTA-TATE radioligand therapy (RLT) is standard for somatostatin-receptor (SSTR)-positive gastroenteropancreatic neuroendocrine tumors (GEP-NETs).
- Effective RLT necessitates precise patient selection, monitoring, and response assessment using SSTR-targeted imaging.
- GEP-NET heterogeneity challenges standardized care guidelines and introduces conflicting data on novel monitoring approaches.
Purpose of the Study:
- To discuss emerging evidence on imaging, clinical biochemistry, and tumor assessment for RLT in GEP-NETs.
- To document best practices for monitoring and surveillance in patients undergoing RLT for GEP-NETs.
- To offer practical guidance for implementing tailored monitoring strategies in clinical decision-making.
Main Methods:
- Review of emerging evidence on imaging modalities for GEP-NETs.
- Analysis of clinical biochemistry markers relevant to RLT.
- Evaluation of tumor assessment criteria in the context of RLT.
- Documentation of institutional best practices for patient management.
Main Results:
- Discussion of current evidence regarding imaging, biochemistry, and tumor assessment in RLT for GEP-NETs.
- Presentation of institutional best practices for monitoring and surveillance.
- Highlighting the need for tailored approaches due to GEP-NET heterogeneity.
Conclusions:
- Effective management of GEP-NETs treated with RLT requires integrating diverse monitoring data.
- Emerging evidence supports refined strategies for surveillance and response assessment.
- Practical guidance is essential for optimizing patient-tailored clinical decision-making in RLT for GEP-NETs.
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