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Khan MS, Cook K, Weickert MO, Davies L, Pritchard DM, Day M, Shah T, Hull D, Caplin M, Back M, Pommie C, Higgs K. PREF-NET: a patient preference and experience study of lanreotide autogel administered in the home versus hospital setting among patients with gastroenteropancreatic neuroendocrine tumours in the UK. Support Care Cancer 2024; 32:199. [PMID: 38421441 PMCID: PMC10904552 DOI: 10.1007/s00520-024-08377-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024]
Abstract
PURPOSE PREF-NET reported patients' experience of Somatuline® (lanreotide) Autogel® (LAN) administration at home and in hospital among patients with gastroenteropancreatic neuroendocrine tumours (GEP-NETs). METHODS PREF-NET was a multicentre, cross-sectional study of UK adults (aged ≥ 18 years) with GEP-NETs receiving a stable dose of LAN, which comprised of (1) a quantitative online survey, and (2) qualitative semi-structured interviews conducted with a subgroup of survey respondents. The primary objective was the description of overall patient preference for home versus hospital administration of LAN. Secondary objectives included describing patient-reported opinions on the experience and associated preference for each administration setting, and the impact on healthcare utilisation, societal cost, activities of daily living and health-related quality of life (HRQoL). RESULTS In the primary analysis (80 patients; mean age 63.9 years), 98.7% (95% confidence interval [CI]: 96.1-100.0) of patients preferred to receive LAN at home, compared with 1.3% (95% CI: 0.0-3.9) who preferred the hospital setting. Among participants, over half (60.3%) received their injection from a non-healthcare professional. Most patients (79.5% [95% CI: 70.5-88.4]) reported a positive effect on HRQoL after the switch from hospital to home administration. Qualitative interviews (20 patients; mean age 63.6 years) highlighted that patients preferred home administration because it improved overall convenience; saved time and costs; made them feel more comfortable and relaxed, and less stressed; and increased confidence in their ability to self-manage their treatment. CONCLUSION Almost all patients preferred to receive LAN treatment at home rather than in hospital with increased convenience and psychological benefits reported as key reasons for this preference.
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Affiliation(s)
- Mohid S Khan
- Cardiff and Vale University Health Board, Cardiff, UK.
| | - Kathryn Cook
- Cardiff and Vale University Health Board, Cardiff, UK
| | - Martin O Weickert
- The ARDEN NET Centre, ENETS Centre of Excellence, University Hospitals Coventry & Warwickshire NHS Trust, Coventry, UK
| | - Louise Davies
- The ARDEN NET Centre, ENETS Centre of Excellence, University Hospitals Coventry & Warwickshire NHS Trust, Coventry, UK
| | - D Mark Pritchard
- Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Melissa Day
- Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Tahir Shah
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Diana Hull
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | - Melissa Back
- Royal Free London NHS Foundation Trust, London, UK
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Faggiano A. Long-acting somatostatin analogs and well differentiated neuroendocrine tumors: a 20-year-old story. J Endocrinol Invest 2024; 47:35-46. [PMID: 37581846 PMCID: PMC10776682 DOI: 10.1007/s40618-023-02170-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 07/28/2023] [Indexed: 08/16/2023]
Abstract
PURPOSE The specific indications of somatostatin analogs (SSAs) in patients with neuroendocrine tumor (NET) emerged over the time. The objective of this review is to summarize and discuss the most relevant data concerning long-acting SSAs in NET. METHODS A narrative review was performed including publications focusing on therapy with the long-acting octreotide, lanreotide, and pasireotide in patients with NET. RESULTS Long-acting SSAs confirm to be a manageable and widely used tool in patients with NET. Both long-acting octreotide and lanreotide are safe as the short-acting formulations, while patient compliance and adherence is further improved. Together with some randomized phase-3 trials, many retrospective and prospective studies have been performed in the last 20 years revealing a variable but substantial impact on progression free survival, not only in gastroenteropancreatic but also in lung and unknown primary NETs. The most frequent tumor response to SSAs is stable disease, but an objective response can be observed, more frequently by using high-dose schedules and in MEN1-related pancreatic NETs. Low tumor burden, low tumor grade (G1 and low G2), good performance status and use as first-line therapy are the main predictive factors to SSAs in NET patients. Pasireotide has been evaluated in few studies. This compound remains a promising SSA and would deserve to be further evaluated as a potential additional indication in NET therapy. CONCLUSIONS Long-acting SSAs are an effective and safe initial therapy of patients with well differentiated NET, allowing tumor growth as well as symptoms control for long-time in selected patients.
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Affiliation(s)
- A Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, ENETS Center of Excellence, Via di Grottarossa 1038, 00189, Rome, Italy.
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Gudmundsdottir H, Habermann EB, Vierkant RA, Starlinger P, Thiels CA, Warner SG, Smoot RL, Truty MJ, Kendrick ML, Halfdanarson TR, Nagorney DM, Cleary SP. Survival and Symptomatic Relief After Cytoreductive Hepatectomy for Neuroendocrine Tumor Liver Metastases: Long-Term Follow-up Evaluation of More Than 500 Patients. Ann Surg Oncol 2023; 30:4840-4851. [PMID: 37208566 PMCID: PMC10319657 DOI: 10.1245/s10434-023-13372-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 02/04/2023] [Indexed: 05/21/2023]
Abstract
BACKGROUND Distant metastases are the strongest predictor of poor prognosis for patients with neuroendocrine tumors (NETs). Cytoreductive hepatectomy (CRH) can relieve symptoms of hormonal excess and prolong survival for patients with liver metastases (NETLMs), but long-term outcomes are poorly characterized. METHODS This retrospective single-institution analysis analyzed patients who underwent CRH for well-differentiated NETLMs from 2000 to 2020. Kaplan-Meier analysis estimated symptom-free interval and overall and progression-free survival. Multivariable Cox regression analysis evaluated factors associated with survival. RESULTS The inclusion criteria were met by 546 patients. The most common primary sites were the small intestine (n = 279) and the pancreas (n = 194). Simultaneous primary tumor resection was performed for 60 % of the cases. Major hepatectomy comprised 27% of the cases, but this rate decreased during the study period (p < 0.001). Major complications occurred in 20%, and the 90-day mortality rate was 1.6%. Functional disease was present in 37 %, and symptomatic relief was achieved in 96%. The median symptom-free interval was 41 months (62 months after complete cytoreduction and 21 months with gross residual disease) (p = 0.021). The median overall survival was 122 months, and progression-free survival was 17 months. In the multivariable analysis, worse overall survival was associated with age, pancreatic primary tumor, Ki-67, number and size of lesions, and extrahepatic metastases, with Ki-67 as the strongest predictor (odds ratio [OR], 1.90 for Ki-67 [3-20%; p = 0.018] and OR, 4.25 for Ki-67 [>20%; p < 0.001]). CONCLUSION The study showed that CRH for NETLMs is associated with low perioperative morbidity and mortality and excellent overall survival, although the majority will experience recurrence/progression. For patients with functional tumors, CRH can provide durable symptomatic relief.
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Affiliation(s)
- Hallbera Gudmundsdottir
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
- Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - Elizabeth B Habermann
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
- Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - Robert A Vierkant
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Rory L Smoot
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Mark J Truty
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Sean P Cleary
- Department of Surgery, Mayo Clinic, Rochester, MN, USA.
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The Role of Somatostatin Analogues in the Control of Diarrhea and Flushing as Markers of Carcinoid Syndrome: A Systematic Review and Meta-Analysis. J Pers Med 2023; 13:jpm13020304. [PMID: 36836538 PMCID: PMC9959441 DOI: 10.3390/jpm13020304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/27/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Somatostatin analogues (SSAs) are the cornerstone of treatment for carcinoid syndrome (CS)-related symptoms. The aim of this systematic review and meta-analysis is to evaluate the percentage of patients achieving partial (PR) or complete response (CR) with the use of long-acting SSAs in patients with CS. METHODS A systematic electronic literature search was conducted in PubMed, Cochrane, and Scopus to identify eligible studies. Any clinical trials reporting data on the efficacy of SSAs to alleviate symptoms in adult patients were considered as potentially eligible. RESULTS A total of 17 studies reported extractable outcomes (PR/CR) for quantitative synthesis. The pooled percentage of patients with PR/CR for diarrhea was estimated to be 0.67 (95% confidence interval (CI): 0.52-0.79, I2 = 83%). Subgroup analyses of specific drugs provided no evidence of a differential response. With regards to flushing, the pooled percentage of patients with PR/CR was estimated to be 0.68 (95% CI: 0.52-0.81, I2 = 86%). Similarly, no evidence of a significant differential response in flushing control was documented. CONCLUSIONS We estimate there is a 67-68% overall reduction in symptoms of CS associated with SSA treatment. However, significant heterogeneity was detected, possibly revealing differences in the disease course, in management and in outcome definition.
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Lanreotide Depot to Treat Gastroenteropancreatic Neuroendocrine Tumors in a US Community Oncology Setting: A Prospective, Observational Study. Oncol Ther 2022; 10:463-479. [PMID: 36136274 DOI: 10.1007/s40487-022-00208-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/30/2022] [Indexed: 10/14/2022] Open
Abstract
INTRODUCTION Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) can result in symptoms such as diarrhea, flushing, abdominal pain, and fatigue and are often associated with a significant disease burden and poor prognosis. This non-interventional, prospective, observational study evaluated the real-world safety and effectiveness of lanreotide depot, a somatostatin analog (SSA) used to treat GEP-NETs, in a community setting. METHODS In this prospective, non-interventional study (NCT02730104), adult patients with locally advanced (inoperable), metastatic GEP-NETs treated with lanreotide depot were evaluated by their physician every 6 months from enrollment for 24 months. Clinically defined time to disease progression (TTDP) and overall survival (OS) were estimated for the total population and by primary tumor type (gastrointestinal [GI], pancreatic, unknown origin), and an exploratory analysis determined the rate of progression-free survival (PFS) at 12 and 24 months. Patient satisfaction was evaluated via the Treatment Satisfaction Questionnaire for Medication (TSQM-9), and safety information was recorded. RESULTS Of 99 patients, the 24-month PFS rate was 73.7% (95% confidence interval [CI] 63.1-81.7) and 24-month OS rate was 84.2% (95% CI 74.0-90.7). Median TTDP was not reached because few patients experienced disease progression during the study period. The majority of responding patients expressed satisfaction with treatment on each domain of the TSQM-9. Treatment-related adverse events (AEs) occurred in 19.2% of patients, while no serious AEs (SAEs) were related to the study drug. CONCLUSIONS Lanreotide depot is an effective and well-tolerated treatment for GEP-NETs in the real-world community setting. TRIAL REGISTRATION ClinicalTrials.gov identifier, NCT02730104.
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Raj N, Cruz E, O'Shaughnessy S, Calderon C, Chou JF, Capanu M, Heffernan O, DeMore A, Punn S, Le T, Hauser H, Saltz L, Reidy-Lagunes D. A Randomized Trial Evaluating Patient Experience and Preference Between Octreotide Long-Acting Release and Lanreotide for Treatment of Well-Differentiated Neuroendocrine Tumors. JCO Oncol Pract 2022; 18:e1533-e1541. [PMID: 35724357 PMCID: PMC9509059 DOI: 10.1200/op.22.00055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/15/2022] [Accepted: 05/19/2022] [Indexed: 09/03/2023] Open
Abstract
PURPOSE Somatostatin analogs octreotide long-acting release (octLAR) and lanreotide are equally acceptable in National Comprehensive Cancer Network guidelines for neuroendocrine tumors (NETs). Lanreotide is more expensive and given by deep subcutaneous injection, whereas octLAR is given intramuscularly. We evaluated patient preference between these agents in terms of injection site pain. MATERIALS AND METHODS Randomized, single-blinded study. Patients with NETs received injections every 4 weeks. Arm 1: octLAR × 3, then lanreotide × 3; arm 2: reverse order. Self-reported injection site pain scores (range, 0-10) were obtained after each of the first three injections. Primary end point was comparison of mean pain scores over the first three injections. Secondary end points included patient-reported preference. RESULTS Fifty-one patients enrolled (26 in arm 1 and 25 arm 2), all evaluable for primary end point. No significant difference was identified in the mean pain score over the first three injections (2.4 ± 1.9 v 1.9 ± 1.5, P = .5). Thirty-four of 51 (67%) patients (15 in arm 1 and 19 in arm 2) completed post-therapy questionnaires and were evaluable for secondary end points. Seven patients (47%) in arm 1 and eight patients (42%) in arm 2 indicated no drug preference at the end of treatment. In the other 19 patients, more patients indicated mild or strong preference for octLAR over lanreotide. CONCLUSION We found minimal pain with octLAR and lanreotide and no significant pain score differences between the two. Patients indicating a drug preference trended toward favoring octLAR.
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Affiliation(s)
- Nitya Raj
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | | | | | | | - April DeMore
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sippy Punn
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Tiffany Le
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Haley Hauser
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Leonard Saltz
- Memorial Sloan Kettering Cancer Center, New York, NY
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Koumarianou A, Daskalakis K, Tsoli M, Kaltsas G, Pavel M. Efficacy, safety and unmet needs of evolving medical treatments for carcinoid syndrome. J Neuroendocrinol 2022; 34:e13174. [PMID: 35794780 DOI: 10.1111/jne.13174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/06/2022] [Accepted: 05/31/2022] [Indexed: 11/25/2022]
Abstract
This review reports on the currently available medical treatment options for the control of symptoms due to carcinoid syndrome in patients with neuroendocrine tumors. The efficacy and adverse events (AEs) of approved drugs such as somatostatin analogues (SSA), telotristat ethyl (TE) and interferon-alpha, are reviewed. Somatostatin analogues remain the standard treatment of carcinoid syndrome based on the high expression of somatostatin receptors and the resulting inhibition of secretion of bioactive compounds; their use is associated with relatively mild AEs, involving mainly the gastrointestinal system, and being usually transient. Although dose escalation of SSA remains an unapproved option, it is clinically implemented to alleviate symptoms in refractory carcinoid syndrome and supported by the most recent guidelines. The side effects associated with the increased dose are in general mild and consistent with standard dose of SSA. Telotristat ethyl, an oral inhibitor of tryptophan hydroxylase, the rate-limiting enzyme in serotonin biosynthesis, represents a rather novel innovative treatment option in patients with carcinoid syndrome suffering from diarrhea and complements the standard therapy of SSA. Given the low toxicity profile, TE may be considered an early add-on treatment to SSA in patients with uncontrolled carcinoid syndrome. However, further prolonged follow-up of patients treated with TE may be needed to exclude potential AEs, such as liver toxicity or depressed mood, in patients with long-term treatment. Interferon alpha is a cytokine with direct inhibitory effect on hormone secretion and tumor cell proliferation and an approved therapy in carcinoid syndrome but is associated with significant AEs in the majority of the patients requiring frequently dose reduction. The finding of a more favorable tolerability of pegylated interferon needs to be confirmed in a prospective study.
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Affiliation(s)
- Anna Koumarianou
- Hematology-Oncology Unit, Fourth Department of Internal Medicine, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Kosmas Daskalakis
- Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- 2nd Department of Surgery, "Korgialenio-Benakio", Red Cross General Hospital, Athens, Greece
| | - Marina Tsoli
- 1st Propaedeutic Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Gregory Kaltsas
- 1st Propaedeutic Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Marianne Pavel
- Department of Endocrinology, Universitatsklinikum Erlangen, Erlangen, Germany
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Ruggeri RM, Altieri B, Grossrubatcher E, Minotta R, Tarsitano MG, Zamponi V, MIsidori A, Faggiano A, Colao AM. Sex differences in carcinoid syndrome: A gap to be closed. Rev Endocr Metab Disord 2022; 23:659-669. [PMID: 35292889 DOI: 10.1007/s11154-022-09719-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/04/2022] [Indexed: 12/17/2022]
Abstract
The incidence of neuroendocrine neoplasms and related carcinoid syndrome (CS) has markedly increased over the last decades and women seem to be more at risk than men for developing CS. Nevertheless, very few studies have investigated sex differences in clinical presentation and outcomes of CS. However, as per other tumours, sex might be relevant in influencing tumour localization, delay in diagnosis, clinical outcomes, prognosis and overall survival in CS. The present review was aimed at evaluating sex differences in CS, as they emerge from an extensive search of the recent literature. It emerged that CS occurs more frequently in female than in male patients with NENs and women seem to have a better prognosis and a slight advantage in overall survival and response to therapy. Moreover, the disease likely impacts differently the quality of life of men and women, with different psychological and social consequences. Nevertheless, sex differences, even if partially known, are deeply underestimated in clinical practice and data from clinical trials are lacking. There is urgent need to increase our understanding of the sex-related differences of CS, in order to define tailored strategies of management of the disease, improving both the quality of life and the prognosis of affected patients.
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Affiliation(s)
- Rosaria M Ruggeri
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Messina, Messina, Italy.
| | - Barbara Altieri
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | | | - Roberto Minotta
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | | | - Virginia Zamponi
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Andrea MIsidori
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Antongiulio Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Anna Maria Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
- Cattedra Unesco "Educazione Alla Salute E Allo Sviluppo Sostenibile", University Federico II, Naples, Italy
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van Leeuwaarde RS, González-Clavijo AM, Pracht M, Emelianova G, Cheung WY, Thirlwell C, Öberg K, Spada F. A Multinational Pilot Study on Patients' Perceptions of Advanced Neuroendocrine Neoplasms on the EORTC QLQ-C30 and EORTC QLQ-GINET21 Questionnaires. J Clin Med 2022; 11:jcm11051271. [PMID: 35268362 PMCID: PMC8910955 DOI: 10.3390/jcm11051271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 12/29/2022] Open
Abstract
Among the available neuroendocrine neoplasm (NEN)-specific HR-QoL scales, only the EORTC QLQ-C30 and EORTC QLQ-G.I.NET21 questionnaires have been validated in several languages. We aim to assess patients' perceptions of these questionnaires. A cross-sectional qualitative pilot study was conducted among 65 adults from four countries with well-differentiated advanced gastro-entero-pancreatic (GEP) or unknown primary NENs. Patients completed the EORTC QLQ-C30 and EORTC QLQ-G.I.NET21 questionnaires and then a survey containing statements concerning the questionnaires. The majority of patients had a small intestine NET (52%). Most tumors were functioning (55%) and grade 2 NET (52%). Almost half of the patients identified limitations in the questionnaires, with nine (14%) patients scoring the questionnaires as poor and 16 (25%) patients as moderate. Overall, 37 (57%) patients were positive towards the questionnaires. Approximately a quarter of patients considered the questionnaires not suitable for all ages, missing some of their complaints, not representative of their overall HR-QoL regarding the treatment of their NET and too superficial. The current validated EORTC QLQ-C30 and EORTC QLQ-G.I.NET21 questionnaires may show some limitations in the design of questions and the patients' final satisfaction reporting of the questionnaire. Large-scale, high-quality prospective studies are required in HR-QoL assessment regarding NETs.
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Affiliation(s)
- Rachel S. van Leeuwaarde
- Department of Endocrine Oncology, University Medical Center Utrecht, 3584 Utrecht, The Netherlands;
| | - Angélica M. González-Clavijo
- Department of Physiological Sciences, School of Medicine, Universidad Nacional de Colombia, Bogota 111321, Colombia;
- Instituto Nacional de Cancerología, Bogota 111321, Colombia
| | - Marc Pracht
- Department of Medical Oncology, Centre Eugène Marquis, 35000 Rennes, France;
| | - Galina Emelianova
- Department of Oncology, National Medical Research Center N.N. Blokhin, 115191 Moscow, Russia;
- Department of Medicine and Dentistry, A.I. Yevdokimov Moscow State University, 127473 Moscow, Russia
| | - Winson Y. Cheung
- Department of Oncology, University of Calgary, Tom Baker Cancer Center, Calgary, AB T2N 4N2, Canada;
| | - Christina Thirlwell
- Cancer Institute, University College London, London WC1E 6DD, UK;
- Department of Medicine and Health, University of Exeter School, Exeter EX4 4PY, UK
| | - Kjell Öberg
- Department of Endocrine Oncology, Uppsala University Hospital, 75185 Uppsala, Sweden;
- Department of Medical Sciences, Uppsala University, 75236 Uppsala, Sweden
| | - Francesca Spada
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO), Istituto di Ricovero e Cura a Carattere Scientifico, 20141 Milan, Italy
- Correspondence: ; Tel.: +39-02-57489258
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Abstract
The spectacular developments in cryoelectron microscopy involving new cameras, new microscopes, and new software make it possible today to routinely determine the atomic structures of a large range of molecular assemblies. This has allowed us to solve the atomic structure of nanotubes formed from a peptide, Lanreotide. Its gel, Somatuline, is used as a synthetic growth hormone inhibitor in the treatment of both acromegaly and cancers. The self-assembled nanotube results in a slow release form of the peptide, important pharmacologically. The nanotube structure shows an unexpected complexity and highlights the still unpredictable chemical and physicochemical determinants driving peptide self-assembly. Functional and versatile nano- and microassemblies formed by biological molecules are found at all levels of life, from cell organelles to full organisms. Understanding the chemical and physicochemical determinants guiding the formation of these assemblies is crucial not only to understand the biological processes they carry out but also to mimic nature. Among the synthetic peptides forming well-defined nanostructures, the octapeptide Lanreotide has been considered one of the best characterized, in terms of both the atomic structure and its self-assembly process. In the present work, we determined the atomic structure of Lanreotide nanotubes at 2.5-Å resolution by cryoelectron microscopy (cryo-EM). Surprisingly, the asymmetric unit in the nanotube contains eight copies of the peptide, forming two tetramers. There are thus eight different environments for the peptide, and eight different conformations in the nanotube. The structure built from the cryo-EM map is strikingly different from the molecular model, largely based on X-ray fiber diffraction, proposed 20 y ago. Comparison of the nanotube with a crystal structure at 0.83-Å resolution of a Lanreotide derivative highlights the polymorphism for this peptide family. This work shows once again that higher-order assemblies formed by even well-characterized small peptides are very difficult to predict.
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Nagel I, Herrmann K, Lahner H, Rischpler C, Weber F. Combined medical therapy, nuclear medicine therapy and other therapies in metastatic neuroendocrine tumor. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00156-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Ito T, Fujimori N, Honma Y, Kudo A, Hijioka S, Katsushima S, Kimura Y, Fukutomi A, Hisamatsu S, Nakajima A, Shimatsu A. Long-term safety and efficacy of lanreotide autogel in Japanese patients with neuroendocrine tumors: Final results of a phase II open-label extension study. Asia Pac J Clin Oncol 2021; 17:e153-e161. [PMID: 32757459 PMCID: PMC8596629 DOI: 10.1111/ajco.13371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 05/02/2020] [Indexed: 12/15/2022]
Abstract
AIM The aim of this study was to describe the long-term safety and efficacy of lanreotide in Japanese patients with neuroendocrine tumors. METHODS The final analyses of a 48-week open-label phase II study (n = 32) and its extension study (n = 17) were conducted. Patients received 4-weekly subcutaneous injections of lanreotide autogel 120 mg. Safety was evaluated by adverse events. Efficacy endpoints included tumor response by RECIST and change in tumor size. Post hoc analyses including tumor growth rate were performed. RESULTS The median (range) of lanreotide exposure in the safety analysis set (n = 17) and efficacy analysis set (n = 28) were 151.4 (52-181) and 52.7 (12-181) weeks, respectively. Sixteen patients developed adverse drug reaction; of these, upper abdominal pain and urticaria were not reported before 48 weeks. No patient discontinued lanreotide or died from an adverse event. Two serious events of bile duct stones in one patient were drug-related. Partial response was observed in 2 patients (7.1%; at 60 and 108 weeks), stable disease in 20 (71.4%) and progressive disease in 6 (21.4%). The mean of the greatest change from baseline in the sum of diameters of target lesions was -5.5%. The mean (standard deviation) tumor growth rate before treatment and from baseline to last observation was 25.3% (35.7%)/month and 6.4% (9.6%)/month, respectively. CONCLUSION Lanreotide treatment had an acceptable safety profile and was effective over long-term treatment in Japanese patients with neuroendocrine tumors. No unexpected serious adverse events developed during prolonged use of lanreotide.
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Affiliation(s)
- Tetsuhide Ito
- Department of Gastroenterology and HepatologyInternational University of Health and Welfare Graduate School of MedicineFukuokaJapan
- Neuroendocrine Tumor CentreFukuoka Sanno HospitalFukuokaJapan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory ScienceGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Yoshitaka Honma
- Head and Neck Medical Oncology Division and Gastrointestinal Medical Oncology DivisionNational Cancer Center HospitalTokyoJapan
| | - Atsushi Kudo
- Department of Hepato‐Biliary‐Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Susumu Hijioka
- Department of GastroenterologyAichi Cancer Center HospitalNagoyaJapan
| | - Shinji Katsushima
- Department of GastroenterologyNational Hospital Organization Kyoto Medical CenterKyotoJapan
| | - Yasutoshi Kimura
- Department of SurgerySurgical Oncology and ScienceSapporo Medical University HospitalSapporoJapan
| | - Akira Fukutomi
- Gastrointestinal OncologyShizuoka Cancer CenterShizuokaJapan
| | - Seiichi Hisamatsu
- Pharmaceutical Research & Development DivisionTeijin Pharma LimitedTokyoJapan
| | - Akihiro Nakajima
- Pharmaceutical Research & Development DivisionTeijin Pharma LimitedTokyoJapan
| | - Akira Shimatsu
- Clinical Research InstituteNational Hospital Organization Kyoto Medical CenterKyotoJapan
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Anthony LB, O'Dorisio TM. Opportunities to Improve Symptom Control with Somatostatin Congeners in GEP-NETs: A Review of Key Issues. Oncologist 2021; 26:e1171-e1178. [PMID: 34097784 PMCID: PMC8265352 DOI: 10.1002/onco.13847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 05/21/2021] [Indexed: 11/17/2022] Open
Abstract
Octreotide acetate (octreotide) is the most prescribed and most studied somatostatin congener, or analog, for gastroenteropancreatic neuroendocrine tumors (GEP‐NETs) and carcinoid syndrome, the latter of which may be characterized by debilitating diarrhea and flushing. Approved in the U.S. more than 30 years ago, octreotide is widely used to control the symptoms of carcinoid syndrome and has been shown to demonstrate antiproliferative activity. The two formulations available in the U.S. include a subcutaneous immediate‐release (IR) injection introduced in 1989 and a long‐acting repeatable (LAR) intramuscular injection approved in 1999. Lanreotide depot (lanreotide), a more recent somatostatin congener, has been available in the U.S. since 2014. Despite widespread use of octreotide LAR, several key challenges exist with the current depot‐based treatment paradigm. Studies indicate that LAR formulations are associated with continued unmet patient needs, owing in part to a loss of bioactivity over time that may necessitate progressive supplemental treatment with IR octreotide to adequately control symptoms. Clinicians should understand the key differences in the pharmacokinetic profiles of the LAR and IR formulations that may contribute to bioactivity loss and somatostatin receptor desensitization. In addition, there is a need to re‐evaluate the role of IR octreotide in combination with depot therapy to provide consistent bioavailability and better control of carcinoid syndrome symptoms. The purpose of this review is to explore all these issues and to re‐establish a rationale for the IR formulation, particularly with respect to novel use cases and its use during the COVID‐19 pandemic. This review explores key challenges with depot‐based treatment of gastroenteropancreatic neuroendocrine tumors with octreotide and the key differences between the LAR and IR formulations.
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Affiliation(s)
- Lowell B Anthony
- Department of Internal Medicine, Division of Medical Oncology, Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA
| | - Thomas M O'Dorisio
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Holden Cancer Center, University of Iowa, Iowa City, Iowa, USA
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14
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Diamantopoulos LN, Laskaratos FM, Kalligeros M, Shah R, Navalkissoor S, Gnanasegaran G, Banks J, Smith J, Jacobs B, Galanopoulos M, Mandair D, Caplin M, Toumpanakis C. Antiproliferative Effect of Above-Label Doses of Somatostatin Analogs for the Management of Gastroenteropancreatic Neuroendocrine Tumors. Neuroendocrinology 2021; 111:650-659. [PMID: 32541155 DOI: 10.1159/000509420] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 06/15/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Above-label doses of somatostatin analogs (SSAs) are increasingly utilized in the management of inoperable/metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs), progressing on standard 4-weekly regimens. OBJECTIVE To evaluate the antiproliferative effect of 3-weekly SSA administration in a retrospective GEP-NET cohort. METHODS Patients with advanced GEP-NET, treated with long-acting release (LAR) octreotide 30 mg or lanreotide Autogel 120 mg at a 3-weekly interval, after disease progression on standard 4-weekly doses, were retrospectively identified. Clinicopathologic and treatment response data were collected. Progression-free survival (PFS; dose escalation to radiographic progression or death) was estimated with the Kaplan-Meier method. Factors associated with PFS were identified with the Cox proportional-hazards model. RESULTS The inclusion criteria were fulfilled by 105 patients. Octreotide LAR was administered to 60 (57%) and lanreotide Autogel to 45 (43%). Indications for dose escalation were breakthrough carcinoid symptoms (58%), radiographic progression (35%) and/or increasing biomarkers (11%). Diarrheal and/or flushing symptomatic improvement was identified in 37/67 cases (55%) and 30/55 cases (55%) with available data, respectively. The disease control rate (radiographic partial response or stable disease) was achieved in 53 patients (50%). Median PFS was 25.0 months (95% CI 16.9-33.1). Patients with radiographic progression <12 months from 4-weekly SSA initiation had worse PFS after dose escalation (7.0 vs. 17.0 months, p = 0.002). In multivariate analysis, pancreatic NETs, a Ki-67 index ≥5% and multiple extrahepatic metastases were independently associated with inferior PFS. CONCLUSIONS Above-label doses of SSAs may offer a considerable prolongation of PFS and could be utilized as a bridge to other more toxic treatments. Patients with small bowel/colorectal primaries, a Ki-67 index <5% and absence of/limited extrahepatic metastases are more likely to benefit from this approach.
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Affiliation(s)
| | - Faidon-Marios Laskaratos
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Markos Kalligeros
- Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Ruchir Shah
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Shaunak Navalkissoor
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Gopinath Gnanasegaran
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Jamie Banks
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Jack Smith
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Benjamin Jacobs
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | | | - Dalvinder Mandair
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Martyn Caplin
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom
| | - Christos Toumpanakis
- Neuroendocrine Tumour Unit, Centre for Gastroenterology, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust and University College London, London, United Kingdom,
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15
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Khan MS, Walter T, Buchanan-Hughes A, Worthington E, Keeber L, Feuilly M, Grande E. Differential diagnosis of diarrhoea in patients with neuroendocrine tumours: A systematic review. World J Gastroenterol 2020; 26:4537-4556. [PMID: 32874063 PMCID: PMC7438200 DOI: 10.3748/wjg.v26.i30.4537] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/22/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Approximately 20% of patients with neuroendocrine tumours (NETs) develop carcinoid syndrome (CS), characterised by flushing and diarrhoea. Somatostatin analogues or telotristat can be used to control symptoms of CS through inhibition of serotonin secretion. Although CS is often the cause of diarrhoea among patients with gastroenteropancreatic NETs (GEP-NETs), other causes to consider include pancreatic enzyme insufficiency (PEI), bile acid malabsorption and small intestinal bacterial overgrowth. If other causes of diarrhoea unrelated to serotonin secretion are mistaken for CS diarrhoea, these treatments may be ineffective against the diarrhoea, risking detrimental effects to patient quality of life.
AIM To identify and synthesise qualitative and quantitative evidence relating to the differential diagnosis of diarrhoea in patients with GEP-NETs.
METHODS Electronic databases (MEDLINE, Embase and the Cochrane Library) were searched from inception to September 12, 2018 using terms for NETs and diarrhoea. Congresses, systematic literature review bibliographies and included articles were also hand-searched. Any study designs and publication types were eligible for inclusion if relevant data on a cause(s) of diarrhoea in patients with GEP-NETs were reported. Studies were screened by two independent reviewers at abstract and full-text stages. Framework synthesis was adapted to synthesise quantitative and qualitative data. The definition of qualitative data was expanded to include all textual data in any section of relevant publications.
RESULTS Forty-seven publications (44 studies) were included, comprising a variety of publication types, including observational studies, reviews, guidelines, case reports, interventional studies, and opinion pieces. Most reported on PEI on/after treatment with somatostatin analogs; 9.5%-84% of patients with GEP-NETs had experienced steatorrhoea or confirmed PEI. Where reported, 14.3%–50.7% of patients received pancreatic enzyme replacement therapy. Other causes of diarrhoea reported in patients with GEP-NETs included bile acid malabsorption (80%), small intestinal bacterial overgrowth (23.6%-62%), colitis (20%) and infection (7.1%). Diagnostic approaches included faecal elastase, breath tests, tauroselcholic (selenium-75) acid (SeHCAT) scan and stool culture, although evidence on the effectiveness or diagnostic accuracy of these approaches was limited. Assessment of patient history or diarrhoea characteristics was also reported as initial approaches for investigation. From the identified evidence, if diarrhoea is assumed to be CS diarrhoea, consequences include uncontrolled diarrhoea, malnutrition, and perceived ineffectiveness of CS treatment. Approaches for facilitating differential diagnosis of diarrhoea include improving patient and clinician awareness of non-CS causes and involvement of a multidisciplinary clinical team, including gastroenterologists.
CONCLUSION Diarrhoea in GEP-NETs can be multifactorial with misdiagnosis leading to delayed patient recovery and inefficient resource use. This systematic literature review highlights gaps for further research on prevalence of non-CS diarrhoea and suitability of diagnostic approaches, to determine an effective algorithm for differential diagnosis of GEP-NET diarrhoea.
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Affiliation(s)
- Mohid S Khan
- Department of Gastroenterology and Neuroendocrine Tumours, University Hospital of Wales, Cardiff CF14 4XW, United Kingdom
| | - Thomas Walter
- Department d'Oncologie Médicale, Hospices Civils de Lyon, Lyon 69003, France
| | | | - Emma Worthington
- Evidence Development, Costello Medical, Cambridge CB1 2JH, United Kingdom
| | - Lucie Keeber
- Medical Affairs, Ipsen, Slough SL1 3XE, United Kingdom
| | - Marion Feuilly
- Health Economics and Outcomes Research, Ipsen, Boulogne-Billancourt 92100, France
| | - Enrique Grande
- Oncology Department, MD Anderson Cancer Center, Madrid 28033, Spain
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16
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Fust K, Maschio M, Kohli M, Singh S, Pritchard DM, Marteau F, Myrenfors P, Feuilly M. A Budget Impact Model of the Addition of Telotristat Ethyl Treatment to the Standard of Care in Patients with Uncontrolled Carcinoid Syndrome. PHARMACOECONOMICS 2020; 38:607-618. [PMID: 32157590 DOI: 10.1007/s40273-020-00896-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Carcinoid syndrome, a rare condition in patients with neuroendocrine tumours, characterised by flushing and diarrhoea, severely affects patients' quality of life. The current carcinoid syndrome standard of care includes somatostatin analogues, but some patients experience uncontrolled symptoms despite somatostatin analogue therapy. Telotristat ethyl is a novel treatment approved by the European Medicines Agency (EMA) and US FDA that significantly reduces bowel movement frequency in patients with uncontrolled carcinoid syndrome. OBJECTIVE We developed a model to evaluate the 5-year budget impact of introducing telotristat ethyl to standard care in Swedish patients with uncontrolled carcinoid syndrome. METHODS Treatment response in the 12-week phase III TELESTAR trial (NCT01677910) informed telotristat ethyl efficacy; subsequently, health states were captured by a Markov model using 4-week cycles. TELESTAR open-label extension data informed telotristat ethyl discontinuation. The number of treatment-eligible patients was estimated from literature reviews reporting the prevalence, incidence and mortality of carcinoid syndrome. A Swedish database study informed real-world costs related to carcinoid syndrome and carcinoid heart disease costs. Telotristat ethyl market share was assumed to increase annually from 24% (year 1) to 70% (year 5). RESULTS Over the 5-year model horizon, 44 patients were expected to initiate telotristat ethyl treatment. The cumulative net budget impact of adding telotristat ethyl to current standard of care was €172,346; per-year costs decreased from €66,495 (year 1) to €29,818 (year 5). Increased drug costs from adding telotristat ethyl were offset by reduced costs elsewhere. CONCLUSIONS The expected budget impact of adding telotristat ethyl to the standard of care in Sweden was relatively low, largely because of the rarity of carcinoid syndrome.
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Affiliation(s)
- Kelly Fust
- Optum, 1325 Boylston Street, Boston, MA, 02215, USA
| | - Michael Maschio
- Formerly affiliated with Optum, 5500 North Service Road, Suite 501, Burlington, ON, L7L 6W6, Canada
| | - Michele Kohli
- Formerly affiliated with Optum, 5500 North Service Road, Suite 501, Burlington, ON, L7L 6W6, Canada
| | - Simron Singh
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
| | - D Mark Pritchard
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool, L69 3BX, UK
| | - Florence Marteau
- Ipsen Pharma, 65 Quai Georges Gorse, 92100, Boulogne-Billancourt, France
| | | | - Marion Feuilly
- Ipsen Pharma, 65 Quai Georges Gorse, 92100, Boulogne-Billancourt, France.
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17
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Adelman D, Truong Thanh XM, Feuilly M, Houchard A, Cella D. Evaluation of Nurse Preferences Between the Lanreotide Autogel New Syringe and the Octreotide Long-Acting Release Syringe: An International Simulated-Use Study (PRESTO). Adv Ther 2020; 37:1608-1619. [PMID: 32157626 PMCID: PMC7140743 DOI: 10.1007/s12325-020-01255-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Somatostatin analogues are used to treat symptoms and slow tumour progression in patients with neuroendocrine tumours (NETs) and carcinoid syndrome and to reduce hormone secretion and pituitary tumour volume in patients with acromegaly. A new syringe for lanreotide autogel/depot (LAN) was developed following feedback from a human factors study to improve ease of injection compared with previous syringes. PRESTO aimed to assess preferences of nurses between the LAN new syringe and the octreotide long-acting release (LAR) syringe. METHODS PRESTO, a multinational, multicentre, prospective, noninterventional, simulated-use study, enrolled nurses with ≥ 2 years' experience injecting LAN and/or octreotide LAR in patients with NETs and/or acromegaly. Nurses administered injections into pads using the LAN new syringe and octreotide LAR syringe in a randomised sequence. In an anonymous web-based questionnaire, nurses reported their overall preference ('strong' or 'slight'; primary endpoint) and rated and ranked the importance of nine attributes for each syringe (1 [not at all] to 5 [very much]). RESULTS Overall, 90 nurses attended sessions and completed valid questionnaires. Most nurses (97.8%) expressed a preference (85.6% 'strong', 12.2% 'slight') for the LAN new syringe versus the octreotide LAR syringe (P < 0.0001). Attribute performance ratings (1 [not at all] to 5 [very much]) were consistently higher for the LAN new syringe versus the octreotide LAR syringe, with the greatest differences in 'fast administration' and 'confidence the syringe will not be clogged' (mean difference [SD]: 2.6 [1.2] and 2.3 [1.5], respectively; P < 0.0001). The attribute ranked most important was 'confidence the syringe will not be clogged' (24.4%); least important was 'convenience of syringe format, including packaging, from preparation to injection' (34.4%). CONCLUSIONS Nurses preferred the user experience of the LAN new syringe compared with the octreotide LAR syringe, with a particular preference for attributes related to product delivery with the LAN new syringe.
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Affiliation(s)
- Daphne Adelman
- Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | | | - Marion Feuilly
- Health Economics and Outcomes Research, Ipsen, Boulogne-Billancourt, France
| | | | - David Cella
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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18
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Abstract
The increased incidence and prevalence of neuroendocrine tumors (NETs) over the past few decades has been accompanied by an improvement in overall survival. There are differences in the management of small bowel NETs versus pNETs. The management of all patients with NETs must be individualized based on patient characteristics as well tumor-related factors. This article reviews the role of somatostatin analogues, historical results with chemotherapy in gastroenteropancreatic NETs (GEPNETs), and more recent evidence for the use of cytotoxic chemotherapy in GEPNETs. The article also discusses molecular targeted therapies approved for use in GEPNETs and some ongoing clinical trials.
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Affiliation(s)
- Chandrikha Chandrasekharan
- Division of Medical Oncology, University of Iowa, 200 Hawkins Drive, C GH 32, Iowa City, Iowa 52242, USA.
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19
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Laskaratos FM, Armeni E, Shah H, Megapanou M, Papantoniou D, Hayes AR, Navalkissoor S, Gnanasegaran G, von Stempel C, Phillips E, Furnace M, Kamieniarz L, Kousteni M, Luong TV, Watkins J, Mandair D, Caplin M, Toumpanakis C. Predictors of antiproliferative effect of lanreotide autogel in advanced gastroenteropancreatic neuroendocrine neoplasms. Endocrine 2020; 67:233-242. [PMID: 31556004 PMCID: PMC6968981 DOI: 10.1007/s12020-019-02086-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 08/27/2019] [Indexed: 01/18/2023]
Abstract
PURPOSE The antiproliferative properties of lanreotide autogel (LAN) in gastroenteropancreatic neuroendocrine neoplasms (GEP NENs) were demonstrated in the CLARINET study. However, there is limited literature regarding factors that affect progression-free survival (PFS) in patients with GEP NENs treated with LAN. METHODS We identified a total of 191 treatment-naive patients with advanced GEP NENs and positive SSTR uptake on imaging (Octreoscan or 68Gallium DOTATATE Positron Emission Tomography [68GaPET]) who received first-line LAN monotherapy, albeit at various starting doses (60, 90 or 120 mg/month). A group of 102 patients who initiated treatment at the standard dose of 120 mg/month were included in the study and further evaluated by univariate and multivariate analyses to identify predictors of PFS. RESULTS The location of tumour primary was in the small bowel in 63 (62%), pancreas in 31 (30%) and colon/rectum in 8 patients (8%). The tumours were well-differentiated, and the majority were grade 1 (52%), or 2 (38%). About 60% of cases had progressive disease at the time of treatment initiation. Most patients with available pretreatment nuclear medicine imaging (Octreoscan or 68Ga PET) had a Krenning score of 3 (44%) or 4 (50%). The median PFS for the entire cohort was 19 months (95% CI 12, 26 months). The univariate analysis demonstrated that grade 2 tumours, progressive disease at baseline and metastatic liver disease were associated with a significantly shorter PFS, while other evaluated variables did not affect PFS at a statistically significant level. However, at multivariate analysis only the tumour grade remained statistically significant. CONCLUSIONS The current study showed that, of many evaluated variables, only the tumour grade was predictive of PFS duration and this should be considered during patient selection for treatment.
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Affiliation(s)
- Faidon-Marios Laskaratos
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK.
| | - Eleni Armeni
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | | | - Maria Megapanou
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Dimitrios Papantoniou
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Aimee R Hayes
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Shaunak Navalkissoor
- Department of Nuclear Medicine, Royal Free London NHS Foundation Trust, London, UK
| | | | - Conrad von Stempel
- Department of Radiology, Royal Free London NHS Foundation Trust, London, UK
| | - Edward Phillips
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Myles Furnace
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | | | | | - Tu Vinh Luong
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, UK
| | - Jennifer Watkins
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, UK
| | - Dalvinder Mandair
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Martyn Caplin
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
| | - Christos Toumpanakis
- Centre for Gastroenterology, Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, UK
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Capdevila J, Hernando J, Perez-Hoyos S, Roman-Gonzalez A, Grande E. Meta-Analysis of Randomized Clinical Trials Comparing Active Treatment with Placebo in Metastatic Neuroendocrine Tumors. Oncologist 2019; 24:e1315-e1320. [PMID: 31332100 PMCID: PMC6975960 DOI: 10.1634/theoncologist.2018-0675] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 06/06/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Most guidelines still recommend active surveillance for patients with asymptomatic, unresectable neuroendocrine tumors (NETs). However, recent findings from several randomized placebo-controlled trials suggest that most patients would benefit from active treatment. We conducted a meta-analysis of pooled outcomes from clinical trials in which an active treatment arm was compared with placebo to determine whether active treatment provides a survival advantage. MATERIALS AND METHODS This meta-analysis evaluated six trials that compared a medication with placebo in patients with an asymptomatic, metastatic NET. The trials were heterogenous with regard to the active medication (octreotide, lanreotide, sunitinib, everolimus, Lu-Dotatate) and tumor localizations (gastrointestinal, pancreas, lung). Overall survival (OS) and progression-free survival (PFS) for the placebo and active treatment arms were obtained from individual trial data and combined to obtain pooled outcomes. RESULTS The individual trials all reported significantly better PFS outcomes for active treatment. The pooled data confirmed this advantage. At months 3, 6, 12, 18, and 24, pooled PFS rates for the placebo and treatment arms, respectively, were 92.9% versus 96.9%; 54.3% versus 83.7%; 35.5% versus 68.5%; 25.1% versus 54.7%; and 17.7% versus 61.0%. OS was also higher in the active treatment groups. At months 6, 12, 24, 36, 48, and 60, OS rates (placebo vs. active treatment), respectively, were 88.1% versus 93.4%; 84.1% versus 86.2%; 67.4% versus 76%; 56.6% versus 64.4%; 49.9% versus 61.0%; and 41.7% versus 45.9%. CONCLUSION This meta-analysis confirms findings from recent clinical trials indicating that active treatment yields better survival outcomes than placebo. Importantly, these findings were obtained across a wide range of patient profiles and diverse medical treatments for metastatic NETs. Given the lack of reliable prognostic factors to determine a priori which patients are unlikely to benefit from active treatment, these findings support early treatment in most patients. IMPLICATIONS FOR PRACTICE Although most guidelines still recommend active surveillance for patients diagnosed with metastatic neuroendocrine tumors, the results of this meta-analysis, together with recent data from key clinical trials, suggest that most patients could benefit from upfront active treatment. However, more data are needed to confirm this.
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Affiliation(s)
- Jaume Capdevila
- Department of Medical Oncology, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Jorge Hernando
- Department of Medical Oncology, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Santiago Perez-Hoyos
- Biostatistics and Bioinformatics Unit, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Alejandro Roman-Gonzalez
- Department of Endocrinology, San Vicente Fundacion University Hospital-Antioquia University, Medellin, Colombia
| | - Enrique Grande
- Department of Medical Oncology, MD Anderson Cancer Center, Madrid, Spain
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21
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Klink AJ, Feinberg B, Yu HT, Ray D, Pulgar S, Phan A, Vinik A. Patterns of Care Among Real-World Patients with Metastatic Neuroendocrine Tumors. Oncologist 2019; 24:1331-1339. [PMID: 31015313 PMCID: PMC6795156 DOI: 10.1634/theoncologist.2018-0798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/14/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Although recent pivotal trials (PROMID, CLARINET) have established somatostatin analogs (SSAs) as first-line agents for neuroendocrine tumors (NETs), their use in clinical practice is largely unknown. We aimed to understand real-world management and treatment of gastroenteropancreatic (GEP) NETs. MATERIALS AND METHODS Patients with metastatic GEP-NETs treated with SSAs, lanreotide depot or octreotide long-acting release (LAR), between January 1, 2015, and December 31, 2015, were identified from a U.S. claims database supplemented with chart review for a subset of patients. Descriptive statistics summarized patients' demographics, clinical characteristics, treatment patterns, and healthcare resource use. Univariate and multivariate comparisons were made across SSA groups. RESULTS Among 548 patients treated with an SSA for metastatic GEP-NET (lanreotide = 108; octreotide = 440), demographic and clinical characteristics were similar across groups, except more patients with pancreatic NETs were treated with lanreotide (38.7% vs. 6.3%, p < .01). More octreotide patients had a diagnosis of carcinoid syndrome compared with lanreotide patients (19.8% vs. 11.1%, p = .02). Approximately 1.1% of patients received lanreotide (>120 mg every 4 weeks [Q4W]) at a dose above label compared with 12.7% of octreotide patients (>30 mg Q4W; p < .01). At 1.5 years after SSA initiation, 85.7% (95% confidence interval, 74.3%-92.3%) were still on index SSA as reported by the physician. Variances between chart review and claims data were significant. CONCLUSION SSAs were common in first-line systemic intervention, but dose escalations and dosing deviations outside of label were noted. Variances between claims and chart review warrant additional research to compare methodologies. With an increasing focus on value-based care in oncology, it is critical to understand the use of, and outcomes with, these agents in community practices. IMPLICATIONS FOR PRACTICE The aim of this study was to enhance understanding of real-world management and treatment of metastatic neuroendocrine tumors (NETs), with particular focus on systemic therapy with a somatostatin analog (SSA). As per published guidelines, SSAs are common in first-line systemic intervention, but dose escalations and dosing deviations outside of the label are noted for symptom control. Nevertheless, oncologists must weigh the implications of the use of above-label dosing of SSAs to manage and treat patients with metastatic NET within a value-based care framework.
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Affiliation(s)
| | | | - Hsing-Ting Yu
- Cardinal Health Specialty Solutions, Dublin, Ohio, USA
| | - David Ray
- Ipsen Biopharmaceuticals, Inc., Basking Ridge, New Jersey, USA
| | - Sonia Pulgar
- Ipsen Biopharmaceuticals, Inc., Basking Ridge, New Jersey, USA
| | - Alexandria Phan
- University of Texas Health Science Tyler School of Medicine, Tyler, Texas, USA
| | - Aaron Vinik
- Eastern Virginia Medical School, Norfolk Virginia, USA
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Biological and Biochemical Basis of the Differential Efficacy of First and Second Generation Somatostatin Receptor Ligands in Neuroendocrine Neoplasms. Int J Mol Sci 2019; 20:ijms20163940. [PMID: 31412614 PMCID: PMC6720449 DOI: 10.3390/ijms20163940] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/1970] [Revised: 08/05/2019] [Accepted: 08/08/2019] [Indexed: 02/07/2023] Open
Abstract
Endogenous somatostatin shows anti-secretory effects in both physiological and pathological settings, as well as inhibitory activity on cell growth. Since somatostatin is not suitable for clinical practice, researchers developed synthetic somatostatin receptor ligands (SRLs) to overcome this limitation. Currently, SRLs represent pivotal tools in the treatment algorithm of neuroendocrine tumors (NETs). Octreotide and lanreotide are the first-generation SRLs developed and show a preferential binding affinity to somatostatin receptor (SST) subtype 2, while pasireotide, which is a second-generation SRL, has high affinity for multiple SSTs (SST5 > SST2 > SST3 > SST1). A number of studies demonstrated that first-generation and second-generation SRLs show distinct functional properties, besides the mere receptor affinity. Therefore, the aim of the present review is to critically review the current evidence on the biological effects of SRLs in pituitary adenomas and neuroendocrine tumors, by mainly focusing on the differences between first-generation and second-generation ligands.
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Ryan P, McBride A, Ray D, Pulgar S, Ramirez RA, Elquza E, Favaro JP, Dranitsaris G. Lanreotide vs octreotide LAR for patients with advanced gastroenteropancreatic neuroendocrine tumors: An observational time and motion analysis. J Oncol Pharm Pract 2019; 25:1425-1433. [PMID: 30924737 PMCID: PMC6643159 DOI: 10.1177/1078155219839458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Lanreotide and octreotide acetate suspension for injectable (LAR) are both recommended for clinical use in patients with locally advanced or metastatic gastroenteropancreatic neuroendocrine tumors. However, each agent possesses unique attributes in terms of their drug-delivery characteristics. The study objective was to compare overall drug-delivery efficiency between lanreotide and octreotide LAR in gastroenteropancreatic neuroendocrine tumor patients. METHODS This study employed an observational time and motion design among patients treated with lanreotide or octreotide LAR across five US cancer centers. Baseline patient data collection included age, disease grade and duration, prior therapies and performance status. Drug-delivery time (drug preparation and administration), total patient time and resource use data were collected for gastroenteropancreatic neuroendocrine tumors receiving lanreotide (n = 22) or octreotide LAR (n = 22). Following each administration, qualitative data on the drug-delivery experience was collected from patients and nurses. RESULTS Lanreotide was associated with a significant reduction in mean delivery time (2.5 min; 95% CI:2.0 to 3.1) compared to octreotide LAR (6.2 min; 95%CI: 4.4 to 7.9; p = 0.004). The mean total patient time for lanreotide and octreotide LAR was comparable between groups (32.1 vs. 36.6 minutes; p = 0.97). Nurses reported increased concerns with octreotide LAR related to needle clogging (p = 0.034) and device failures (p = 0.057). Overall, lanreotide had a median satisfaction score of 5.0 compared to a score of 4.0 with octreotide LAR (p = 0.03). CONCLUSIONS Lanreotide was associated with significant reductions in drug-delivery time compared to octreotide LAR, which contributed to an improvement in overall healthcare efficiency. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT03017690.
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Affiliation(s)
- P Ryan
- 1 Ochsner Medical Center, Kenner, LA, USA
| | - A McBride
- 2 University of Arizona Cancer Center, Tucson, AZ, USA
| | - D Ray
- 3 Ipsen Biopharmaceuticals, Inc., Basking Ridge, NJ, USA
| | - S Pulgar
- 3 Ipsen Biopharmaceuticals, Inc., Basking Ridge, NJ, USA
| | | | - E Elquza
- 2 University of Arizona Cancer Center, Tucson, AZ, USA
| | - J P Favaro
- 4 Oncology Specialists of Charlotte, Charlotte, NC, USA
| | - G Dranitsaris
- 5 Augmentium Pharma Consulting Inc., Toronto, Canada
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Hofland J, Herrera-Martínez AD, Zandee WT, de Herder WW. Management of carcinoid syndrome: a systematic review and meta-analysis. Endocr Relat Cancer 2019; 26:R145-R156. [PMID: 30608900 DOI: 10.1530/erc-18-0495] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 12/18/2022]
Abstract
Carcinoid syndrome (CS) is a debilitating disease caused by functional neuroendocrine tumors. Several treatment options are available to alleviate the hormonal symptoms, but their relative efficacy is unknown. Online databases were searched for publications on the treatment of CS symptoms. Independent reviewers assessed relevant publications for study quality and outcome. Meta-analysis of the outcomes of the intervention on CS-related symptoms was stratified by the type of treatment. We found 3682 therapeutic interventions on CS-specific outcomes were collected from 93 studies. Overall, the study qualities were poor with only six randomized controlled clinical trials. The somatostatin analogs octreotide and lanreotide induced symptomatic improvement in 65-72% and biochemical response in 45-46% of patients. An increase in dose or frequency or interclass switch led to a reduction of flushes and/or diarrhea in 72-84% of cases. Retrospective, institutional series showed that liver-directed therapy can improve symptoms in 82% of CS patients with a liver-dominant disease. The serotonin synthesis inhibitor telotristat ethyl reduced bowel movements in 40% of patients with diarrhea refractory to somatostatin analogs. Interferon-alpha controlled CS symptoms in 45-63% of cases. Favorable response has been noted after radionuclide therapy in subgroup analyses of studies not specifically involving CS patients. Chemotherapy and everolimus did not induce a significant response in the CS. We conclude that several treatment lines can be offered to patients suffering from the carcinoid syndrome. Initiation of randomized controlled trials with a primary outcome on carcinoid syndrome symptoms is strongly recommended.
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Affiliation(s)
- Johannes Hofland
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Aura D Herrera-Martínez
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Córdoba, Spain
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, Córdoba, Spain
| | - Wouter T Zandee
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Wouter W de Herder
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
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Abstract
Carcinoid syndrome (CS) is a debilitating disease caused by functional neuroendocrine tumors. Several treatment options are available to alleviate the hormonal symptoms, but their relative efficacy is unknown. Online databases were searched for publications on the treatment of CS symptoms. Independent reviewers assessed relevant publications for study quality and outcome. Meta-analysis of the outcomes of the intervention on CS-related symptoms was stratified by the type of treatment. We found 3682 therapeutic interventions on CS-specific outcomes were collected from 93 studies. Overall, the study qualities were poor with only six randomized controlled clinical trials. The somatostatin analogs octreotide and lanreotide induced symptomatic improvement in 65–72% and biochemical response in 45–46% of patients. An increase in dose or frequency or interclass switch led to a reduction of flushes and/or diarrhea in 72–84% of cases. Retrospective, institutional series showed that liver-directed therapy can improve symptoms in 82% of CS patients with a liver-dominant disease. The serotonin synthesis inhibitor telotristat ethyl reduced bowel movements in 40% of patients with diarrhea refractory to somatostatin analogs. Interferon-alpha controlled CS symptoms in 45–63% of cases. Favorable response has been noted after radionuclide therapy in subgroup analyses of studies not specifically involving CS patients. Chemotherapy and everolimus did not induce a significant response in the CS. We conclude that several treatment lines can be offered to patients suffering from the carcinoid syndrome. Initiation of randomized controlled trials with a primary outcome on carcinoid syndrome symptoms is strongly recommended.
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26
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Joish VN, Shah S, Tierce JC, Patel D, McKee C, Lapuerta P, Zacks J. Serotonin levels and 1-year mortality in patients with neuroendocrine tumors: a systematic review and meta-analysis. Future Oncol 2019; 15:1397-1406. [PMID: 30734573 DOI: 10.2217/fon-2018-0960] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Elevated serotonin in patients with neuroendocrine tumors (NETs) may impact heart failure incidence but a quantitative relationship has not been established. Materials & methods: Systematic review and meta-analysis of studies assessing 24-h urinary 5-hydroxyindoleacetic acid (u5-HIAA) and mortality in patients with NETs (2007-2017) with a primary outcome of 1-year mortality risk and 24-h u5-HIAA. Results: We identified 1715 records of which 12 studies including 755 patients (3442 person-years with 376 deaths) were eligible for meta-analysis. Mean u5-HIAA was 149.2 mg/24 h (standard deviation: 96.6) and mortality was 13.0%. The meta-regression equation showed an 11.8% (95% CI: 8.9-17.0%; I2 = 93.0%) increase in 1-year mortality for every ten-unit increase in u5-HIAA. Conclusion: Serotonin measured by its metabolite u5-HIAA is predictive of 1-year all-cause mortality in patients with NETs.
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Affiliation(s)
- Vijay N Joish
- Lexicon Pharmaceuticals, Inc., The Woodlands, TX 77381, USA
| | | | | | | | - Chad McKee
- Lexicon Pharmaceuticals, Inc., The Woodlands, TX 77381, USA
| | - Pablo Lapuerta
- Lexicon Pharmaceuticals, Inc., The Woodlands, TX 77381, USA
| | - Jerome Zacks
- Icahn School of Medicine, Center for Carcinoid and Neuroendocrine Tumors, Mount Sinai Health System, New York, NY 10029, USA
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Lesén E, Björstad Å, Björholt I, Marlow T, Bollano E, Feuilly M, Marteau F, Welin S, Elf AK, Johanson V. Real-world treatment patterns, resource use and costs of treating uncontrolled carcinoid syndrome and carcinoid heart disease: a retrospective Swedish study. Scand J Gastroenterol 2018; 53:1509-1518. [PMID: 30449217 DOI: 10.1080/00365521.2018.1531653] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To quantify healthcare resource use (HRU) and costs in relation to carcinoid syndrome (CS) and carcinoid heart disease (CHD) in a real-world setting, and to provide perspective on treatment patterns. MATERIALS AND METHODS Patient data and HRU were collected retrospectively from three Swedish healthcare registers. Adult patients diagnosed with metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs) grade 1 or 2 and CS who purchased somatostatin analogs (SSAs), and experienced controlled (defined by SSAs use) and uncontrolled (defined by SSAs dose escalation) CS for ≥8 months during the study period were included. Patients diagnosed with CHD from the date of the GEP-NET diagnosis were included in the CHD study group. RESULTS Overall, total HRU cost increased with uncontrolled CS and CHD. Total resource cost was 15,500€/patient during controlled CS (8 months), rising to 21,700€/patient during uncontrolled CS (8 months), representing an increase of ∼40% (6200€/patient). Costs/patient were driven mainly by SSA use, tumor-related medical interventions and examinations. The total mean cost/year of disease was 1100€/patient without CHD, compared to 4600€/patient with CHD, a difference of 3500€/patient. Excluding SSA cost burden, the main drivers of increased cost in CHD patients were surgical interventions and echocardiography. CONCLUSIONS This study provides a comprehensive overview of the treatment patterns and burden of uncontrolled CS symptoms and CHD using Swedish national register data. Increases in medical interventions and examinations HRU and increased SSA use suggest that SSA dose escalation alone may not effectively control the symptoms associated with uncontrolled CS, highlighting an unmet treatment need in this patient group.
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Affiliation(s)
- Eva Lesén
- a PharmaLex, formerly Nordic Health Economics AB , Gothenburg , Sweden
| | - Åse Björstad
- a PharmaLex, formerly Nordic Health Economics AB , Gothenburg , Sweden
| | - Ingela Björholt
- a PharmaLex, formerly Nordic Health Economics AB , Gothenburg , Sweden
| | - Tom Marlow
- a PharmaLex, formerly Nordic Health Economics AB , Gothenburg , Sweden
| | - Entela Bollano
- b Department of Cardiology , Sahlgrenska University Hospital , Gothenburg , Sweden
| | | | | | - Staffan Welin
- d Department of Endocrine Oncology , Uppsala University Hospital , Uppsala , Sweden
| | - Anna-Karin Elf
- e Department of Surgery , Sahlgrenska University Hospital , Gothenburg , Sweden
| | - Viktor Johanson
- e Department of Surgery , Sahlgrenska University Hospital , Gothenburg , Sweden
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28
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Cella D, Beaumont JL, Hudgens S, Marteau F, Feuilly M, Houchard A, Lapuerta P, Ramage J, Pavel M, Hörsch D, Kulke MH. Relationship Between Symptoms and Health-related Quality-of-life Benefits in Patients With Carcinoid Syndrome: Post Hoc Analyses From TELESTAR. Clin Ther 2018; 40:2006-2020.e2. [PMID: 30477789 DOI: 10.1016/j.clinthera.2018.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/12/2018] [Accepted: 10/09/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE Patients with metastatic neuroendocrine tumors and carcinoid syndrome (CS) may experience chronic, recurring symptoms despite somatostatin analogue therapy. Little is known about the relationship between bowel movement (BM) frequency, patient-reported symptoms and health-related quality of life (QoL). Data from the TELESTAR study were used in exploratory, post hoc analyses to understand the relationship between durable reductions in BM frequency, symptom relief, and health-related QoL. METHODS Patients with metastatic neuroendocrine tumors and CS in the Phase III TELESTAR study were randomized (1:1:1) to receive telotristat ethyl (TE) 250 mg, TE 500 mg, or placebo three times daily (TID) during a 12-week double-blind treatment period (DBTP). All patients received TE 500 mg TID in an open-label extension (OLE) to Week 48. Durable response was predefined. Analyses compared durable responders (DRs) and non-durable responders (NDRs), irrespective of treatment group, at Weeks 12, 24, and 48. FINDINGS At the start of the DBTP, 135 patients were randomized, 45 patients each to TE 250 mg, TE 500 mg, and placebo. After the 12-week DBTP, 48 of 135 patients were DRs (TE 250 mg, n = 20; TE 500 mg, n = 19; placebo, n = 9). Of the 115 patients who entered the OLE, 35 were DRs initially randomized to TE 250 mg (n = 18) or 500 mg (n = 17), 29 of whom maintained a durable response throughout the OLE. Of the 71 DBTP-NDRs (inclusive of patients initially randomized to placebo), 28 became OLE-DRs. There were 29 NDRs initially randomized to placebo who entered the OLE, 16 of whom became DRs when switched to TE 500 mg. DRs during the DBTP had greater symptom improvements in the DBTP; these improvements continued over the OLE. DBTP-DRs also maintained more meaningful QoL improvements in EORTC QLQ-C30 global health status, nausea and vomiting, pain, diarrhea, and EORTC QLQ-GINET21 gastrointestinal symptoms over the DBTP and OLE periods than DBTP-NDRs. IMPLICATIONS These results suggest that sustained improvements in BM frequency in patients with CS may have multifaceted, long-term effects on a patient's well-being. ClinicalTrials.gov identifiers: NCT01677910.
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Affiliation(s)
- David Cella
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Jennifer L Beaumont
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Terasaki Research Institute, Los Angeles, CA, USA
| | | | | | | | | | | | - John Ramage
- Hampshire Hospitals, Basingstoke, United Kingdom
| | - Marianne Pavel
- Universitatsklinikum Erlangen, Erlangen, Germany; Charité-Universitätsmedizin Berlin, Berlin, Germany
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Prognostic and predictive biomarkers for somatostatin analogs, peptide receptor radionuclide therapy and serotonin pathway targets in neuroendocrine tumours. Cancer Treat Rev 2018; 70:209-222. [PMID: 30292979 DOI: 10.1016/j.ctrv.2018.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/21/2018] [Accepted: 09/25/2018] [Indexed: 12/28/2022]
Abstract
Neuroendocrine tumours (NETs) are a heterogeneous group of neoplasms regarding their molecular biology, clinical behaviour, prognosis and response to therapy. Several attempts to establish robust predictive biomarkers have failed. Neither tissue markers nor blood borne ones have proven to be successful yet. Circulating tumour cells (CTCs) as "liquid biopsies" could provide prognostic information at the time a therapeutic decision needs to be made and could be an attractive tool for tumour monitoring throughout the treatment period. However, "liquid biopsies" are far from becoming the standard biomarker in NETs. Promising results have been presented over the last few years using a novel biomarker candidate, a multianalyte algorithm analysis PCR-based test (NETest). New technologies will open the field to different ways of approaching the biomarker conundrum in NETs. However, the complications derived from being a heterogeneous group of malignancies will remain with us forever. In summary, there is an unmet need to incorporate new biomarker candidates into clinical research trials to obtain a robust prospective validation under the most demanding scenario.
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30
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Burton T, Lapuerta P. Economic analysis of inadequate symptom control in carcinoid syndrome in the United States. Future Oncol 2018; 14:2361-2370. [PMID: 30095284 DOI: 10.2217/fon-2018-0129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
AIM We investigated the healthcare resource utilization and costs of patients with dose escalations beyond recommended levels of long-acting octreotide for persistent carcinoid syndrome (CS) symptoms. MATERIALS & METHODS A retrospective study of US health insurance claims included 358 adults with ≥1 medical claim for CS and ≥6 claims for long-acting octreotide (10-30 mg) between 1 July 2006 and 31 December 2013. RESULTS Pre-escalation per-patient per-month outcomes and costs were lower versus post-escalation, including vascular conditions (0.11 vs 0.21), metastasis/secondary neoplasms (0.45 vs 0.74), total all-cause costs (US$4116 vs US$8305; p < 0.001) and CS-related costs (US$3156 vs US$7101; p < 0.001). CONCLUSION Higher mean pre-escalation per-patient per-month resource use and costs post-escalation primarily attributable to CS-related ambulatory care suggests continuing challenges in managing CS despite octreotide dose escalation.
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Affiliation(s)
- Tanya Burton
- Optum Life Sciences, Health Economics and Outcomes Research, Boston, MA 02215, USA
| | - Pablo Lapuerta
- Lexicon Pharmaceuticals, Inc., The Woodlands, TX 77381, USA
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31
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Lee SY, Li S, Sian K, Mejia R. Metastatic small bowel neuroendocrine tumour and carcinoid heart disease with aortic valve involvement-a rare occurrence. J Thorac Dis 2018; 10:E103-E107. [PMID: 29607196 DOI: 10.21037/jtd.2018.01.52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Carcinoid disease of the heart commonly affects the tricuspid and pulmonary valves causing thickening and stenosis. However in very rare circumstances, the disease can also involve the mitral and aortic valves. We present an unusual case of left sided carcinoid heart disease (CHD) and triple valve replacement without the presence of proven intra-cardiac shunts or bronchial carcinoid lesions.
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Affiliation(s)
- Siang Yuin Lee
- Department of Cardiothoracic Surgery, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Sheila Li
- Department of Cardiothoracic Surgery, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Karan Sian
- Department of Cardiothoracic Surgery, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Rosauro Mejia
- Department of Cardiothoracic Surgery, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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Cuyle PJ, Prenen H. Practical management of toxicities associated with targeted therapies for advanced gastroenteropancreatic neuroendocrine tumors. Ann Gastroenterol 2018; 31:140-150. [PMID: 29507461 PMCID: PMC5825944 DOI: 10.20524/aog.2018.0224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 11/13/2017] [Indexed: 02/06/2023] Open
Abstract
Neuroendocrine tumors are heterogeneous, rare malignancies that arise most frequently in the gastroenteropancreatic tract (GEPNET). The therapeutic armamentarium for the treatment of GEPNETs has expanded significantly over the last two decades, however the ideal sequencing strategy remains controversial. As this disease may be relatively slow-growing, patients are expected to be treated for longer periods, so that even mild toxicities can influence quality of life, compliance and outcome in the long run. Prospective data on optimal adverse event management are lacking and recommendations are largely based on expert opinion and drug prescribing information. This review summarizes practical recommendations for toxicity management associated with the most commonly used GEPNET treatment options and stresses important focus points for future clinical trials.
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Affiliation(s)
- Pieter-Jan Cuyle
- Department of Gastroenterology/Digestive Oncology, Imelda General Hospital, Bonheiden (Pieter-Jan Cuyle), Belgium
| | - Hans Prenen
- Department of Gastroenterology/Digestive Oncology, University Hospitals Gasthuisberg Leuven, Leuven (Hans Prenen), Belgium
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Tadman M, Charlton P, Jafar-Mohammadi B, Talbot D, Grossman AB. INITIATION OF PATIENTS ONTO LONG-ACTING SOMATOSTATIN ANALOGUE THERAPY FOR NEUROENDOCRINE TUMORS: A SINGLE-CENTER REVIEW OF PRACTICE. Endocr Pract 2018; 24:189-194. [PMID: 29466059 DOI: 10.4158/ep-2017-0137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Neuroendocrine tumors (NETs) are being seen increasingly frequently, and recent data show that long-acting somatostatin analogues have become a major initial treatment, regardless of whether the tumors are functioning or not. However, test dosing with subcutaneous (sc) octreotide is usually advised to assess longer-term tolerability, although this advice is mainly based on results with functioning tumors. The aim of the study was to assess the value of an initiating test dose of sc octreotide on the prediction of subsequent adverse events after treatment with the long-acting analogue. METHODS In a single, large Centre of Excellence for NETs, a first cohort of patients (n = 24) was admitted overnight after an sc injection of octreotide, and then administered the analogue; a subsequent group (n = 53) had the test dose performed on an outpatient basis. Side effects were recorded after the test dose and subsequent treatment with the long-acting analogue. RESULTS The test dose injection was of little value in predicting adverse events following the long-acting somatostatin analogue. CONCLUSION Unless there are serious symptoms associated with a functioning NET, it is unnecessary to carry out a test dose; a change to this procedure will improve resource allocation and should enhance early initiation onto maintenance therapy. ABBREVIATIONS CLARINET = Controlled study of lanreotide antiproliferative response in neuroendocrine tumors LAR = long-acting repeatable NET = neuroendocrine tumor PROMID = Placebo-controlled, double-blind, prospective, randomized study on the effect of octreotide LAR in the control of tumor growth in patients with meta-static neuroendocrine midgut tumors.
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Abstract
PURPOSE OF REVIEW To review recent advances and controversies in all aspects of carcinoid-syndrome. RECENT FINDINGS Over the last few years there have been a number of advances in all aspects of carcinoid syndrome as well as new therapies. These include new studies on its epidemiology which demonstrate it is increasing in frequency; increasing insights into the pathogenesis of its various clinical manifestations and into its natural history: definition of prognostic factors; new methods to verify its presence; the development of new drugs to treat its various manifestations, both initially and in somatostatin-refractory cases; and an increased understanding of the pathogenesis, natural history and management of carcinoid heart disease. These advances have generated several controversies and these are also reviewed. SUMMARY There have been numerous advances in all aspects of the carcinoid-syndrome, which is the most common functional syndrome neuroendocrine tumors produce. These advances are leading to new approaches to the management of these patients and in some cases to new controversies.
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Affiliation(s)
- Tetsuhide Ito
- Neuroendocrine Tumor Centre, Fukuoka Sanno Hospital, International University of Health and Welfare
| | - Lingaku Lee
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Digestive Diseases Branch, NIDDK, NIH, Bethesda, Maryland, USA
| | - Robert T Jensen
- Digestive Diseases Branch, NIDDK, NIH, Bethesda, Maryland, USA
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Abstract
BACKGROUND The options for the treatment of diarrhea and constipation are evolving as emerging therapies target small bowel receptors. The goal of this review is to discuss small bowel receptors involved in intestinal absorption, secretion, and motility. The review highlights therapies already approved or currently being studied for the modulation of these receptors. METHODS The articles cited in this review focus on the molecular level of pathways involved in diarrhea and constipation, and highlight the respective pharmacotherapies. RESULTS The majority of the studies in the current literature investigate the effects of both the small and large intestine receptors on diarrhea and constipation. There are fewer studies that isolate the effects of these receptors solely on the small bowel, and focusing more on the receptors found distinctly in the small intestine may be an area of interest for future studies as this can inspire more targeted therapies.
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Affiliation(s)
- Elizabeth S John
- Department of Internal Medicine, Rutgers Robert Wood Johnson Medical School, 1 RWJ Place, New Brunswick, NJ, 08901, USA.
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Fisher GA, Wolin EM, Liyanage N, Pitman Lowenthal S, Mirakhur B, Pommier RF, Shaheen M, Vinik A. Patient-Reported Symptom Control of Diarrhea and Flushing in Patients with Neuroendocrine Tumors Treated with Lanreotide Depot/Autogel: Results from a Randomized, Placebo-Controlled, Double-Blind and 32-Week Open-Label Study. Oncologist 2017; 23:16-24. [PMID: 29038234 DOI: 10.1634/theoncologist.2017-0284] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/06/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In the double-blind (DB) ELECT study, lanreotide depot/autogel significantly reduced versus placebo the need for short-acting octreotide for symptomatic carcinoid syndrome (CS) control in neuroendocrine tumor (NET) patients. Here we present patient-reported symptom data during DB and initial open-label (IOL) treatment. MATERIALS AND METHODS Adults with NETs and CS history, with/without prior somatostatin analog use, were randomized to 16 weeks' DB lanreotide 120 mg subcutaneous or placebo every 4 weeks, followed by 32 weeks' IOL lanreotide. Patients recorded diarrhea and/or flushing frequency and severity daily by Interactive Voice (Web) Response System for 1 month prior to randomization and throughout the study. RESULTS Of 115 patients randomized (n = 59 lanreotide, n = 56 placebo), 56 lanreotide and 45 placebo patients enrolled in the IOL phase. During DB treatment, least square (LS) mean percentages of days with moderate/severe diarrhea and/or flushing were significantly lower for lanreotide (23.4%) versus placebo (35.8%; LS mean difference [95% confidence interval]: -12.4 [-20.73 to -4.07]; p = .004). For DB lanreotide patients, average daily composite (frequency × severity) diarrhea scores improved significantly between DB and IOL treatment (mean difference: -0.71 [-1.20 to -0.22]; p = .005), and remained stable for diarrhea and/or flushing. For DB placebo patients, composite scores for diarrhea, flushing, and diarrhea and/or flushing improved significantly between DB and IOL treatment (mean differences: -1.07 [-1.65 to -0.49]; -1.06 [-1.93 to -0.19]; and -2.13 [-3.35 to -0.91]; all p ≤ .018). CONCLUSION Improved diarrhea and flushing control in CS patients during 16-week lanreotide treatment was sustained during maintenance of lanreotide treatment for the 32-week IOL phase (48 weeks total). IMPLICATIONS FOR PRACTICE This study prospectively collected daily patient-reported data on diarrhea and flushing from the ELECT trial to evaluate the direct impact of lanreotide depot on patients' relief of carcinoid syndrome symptoms. Treatment with lanreotide depot was associated with significant reductions in the percentages of days patients reported symptoms of diarrhea and flushing, as well as reductions in the frequency and severity of daily symptoms compared with placebo during 16 weeks of double-blind treatment. These improvements were sustained for 32 additional weeks of open-label lanreotide treatment (i.e., through week 48 of treatment), resulting in clinically meaningful, long-term symptom reduction.
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Affiliation(s)
- George A Fisher
- Stanford University School of Medicine, Stanford, California, USA
| | - Edward M Wolin
- Montefiore Einstein Center for Cancer Care, Bronx, New York, USA
| | | | | | - Beloo Mirakhur
- Ipsen Biopharmaceuticals, Basking Ridge, New Jersey, USA
| | | | - Montaser Shaheen
- University of New Mexico Cancer Center, Albuquerque, New Mexico, USA
| | - Aaron Vinik
- Eastern Virginia Medical School, Norfolk, Virginia, USA
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Carmona-Bayonas A, Jiménez-Fonseca P, Custodio A, Grande E, Capdevila J, López C, Teule A, Garcia-Carbonero R. Optimizing Somatostatin Analog Use in Well or Moderately Differentiated Gastroenteropancreatic Neuroendocrine Tumors. Curr Oncol Rep 2017; 19:72. [PMID: 28920153 DOI: 10.1007/s11912-017-0633-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Somatostatin analogues, aiming to control tumor secretion or growth, constitute the most attractive therapeutic option for patients with well-differentiated gastroenteropancreatic neuroendocrine tumors (GEP-NETs). The objective of this article is to provide a comprehensive review of the current state-of-the-art knowledge gaps and potential opportunities for future development and optimization of this therapeutic modality. METHOD A contextualized systematic review with a narrative component was conducted using PubMed, The Cochrane Library, EMBASE, and Google Scholar. Titles were screened, and non-English, duplicate, or irrelevant entries were excluded. Selection criteria for articles included the following: publication in English between 1995 and 2016, patients with GEP-NETs, analysis of efficacy, safety, practical management considerations, predictive factors, and/or strategies for overcoming resistance, concerning somatostatin analogs. RESULTS Ninety-seven studies out of 2771 screened publications met the inclusion criteria (16 randomized clinical trials, 27 phase II trials, 3 phase I trials, 3 subgroup analyses of clinical trials, 1 open-label extension of a randomized trial, 1 phase IV trial, 32 observational studies, and 14 basic research articles). The nature and scope of literature was diverse with most articles dedicated to drug efficacy or indications of use (n = 49), pharmacological issues (n = 8), assessment or predictors of response (n = 4), practical management (n = 11), combination therapy or other means to overcome resistance (n = 19), receptors and signaling pathways (n = 3), and subgroup analyses (n = 3). CONCLUSION In this appraisal, we have found some practical aspects that can help to the optimization of somatostatin analog (SSA) therapy in patients with well-differentiated GEP-NETs. We have also identified areas of uncertainty in an effort to guide clinical research in the coming years.
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Affiliation(s)
- Alberto Carmona-Bayonas
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Calle Marqués de los Vélez, s/n, CP 30008, Murcia, Spain.
| | | | - Ana Custodio
- Department of Medical Oncology, La Paz University Hospital, Madrid, Spain
| | - Enrique Grande
- Department of Medical Oncology, Ramón y Cajal University Hospital, Madrid, Spain
| | - Jaume Capdevila
- Department of Medical Oncology, Vall D'Hebrón University Hospital, Vall D'Hebrón Institute of Oncology (VHIO), Universitat Autònoma de Barcelona, center affiliated with the Red Temática de Investigación Cooperativa en Cáncer (RTICC), Instituto Carlos III, Spanish Ministry of Science and Innovation, Barcelona, Spain
| | - Carlos López
- Department of Medical Oncology, Marqués de Valdecilla University Hospital, Santander, Spain
| | - Alex Teule
- Department of Medical Oncology, Institut Català d'Oncologia, L'Hospitalet de Llobregat, center affiliated with the Red Temática de Investigación Cooperativa en Cáncer (RTICC), Instituto Carlos III, Spanish Ministry of Science and Innovation, Barcelona, Spain
| | - Rocío Garcia-Carbonero
- Department of Medical Oncology, Doce de Octubre University Hospital, center affiliated with the Red Temática de Investigación Cooperativa en Cáncer (RTICC), Instituto Carlos III, Spanish Ministry of Science and Innovation, Madrid, Spain
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Treatment Strategies for Metastatic Neuroendocrine Tumors of the Gastrointestinal Tract. Curr Treat Options Oncol 2017; 18:14. [PMID: 28286921 DOI: 10.1007/s11864-017-0461-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OPINION STATEMENT The therapeutic landscape of gastroenteropancreatic-neuroendocrine tumors (GEP-NETs) has evolved significantly in recent years. Current and emerging treatment options include somatostatin analogs, radiolabeled somatostatin analogs, the mTOR inhibitor everolimus, and the tyrosine kinase inhibitor sunitinib. Although high-quality data from phase III trials are lacking, cytotoxic agents are commonly used for the treatment of poorly differentiated neuroendocrine carcinomas and well-differentiated NETs originating in the pancreas. Hepatic-directed therapies are recommended for patients with slow-growing, liver-predominant disease but have never been compared to systemic agents. Telotristat ethyl, a novel serotonin synthesis inhibitor, has recently demonstrated efficacy in palliating diarrhea in patients with poorly controlled carcinoid syndrome. In the absence of definite predictive biomarkers, therapeutic decisions in most cases rely on clinical and pathological criteria. However, navigating the current therapeutic algorithm may be challenging, and future trials need to address several important questions: what is the best sequence of treatment? Is there a role for combination therapies in GEP-NETs? Are neoadjuvant, adjuvant, or maintenance strategies safe and effective? Do all NET patients require active treatment? What new molecular targets can be clinically exploited? A tight integration between basic and clinical research is needed to further advance the field of NETs.
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Singh S, Sivajohanathan D, Asmis T, Cho C, Hammad N, Law C, Wong R, Zbuk K. Systemic therapy in incurable gastroenteropancreatic neuroendocrine tumours: a clinical practice guideline. Curr Oncol 2017; 24:249-255. [PMID: 28874893 PMCID: PMC5576461 DOI: 10.3747/co.24.3634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE The purpose of the present review was to determine which antineoplastic systemic therapy is most effective in improving clinical outcomes for patients with incurable gastroenteropancreatic neuroendocrine tumours (nets). METHODS A systematic search (2008-2016) of the literature in the medline and embase databases and the Cochrane Database of Systematic Reviews was conducted; abstracts from the American Society of Clinical Oncology, the American Society of Clinical Oncology Gastrointestinal Cancers Symposium, the European Society for Medical Oncology, the European Cancer Congress, the European Neuroendocrine Tumor Society, and the North American Neuroendocrine Tumor Society were reviewed. Draft recommendations were created, and a comprehensive review process was undertaken. Outcomes-including progression-free survival (pfs), overall survival, objective response rate, adverse events, and quality of life-were extracted from each of the studies. RESULTS Eleven randomized controlled trials (rcts), sixteen nonrandomized prospective studies, and thirteen retrospective studies met the inclusion criteria. CONCLUSIONS Patients with well-or moderately-differentiated pancreatic nets (pnets) should receive targeted therapy (that is, everolimus or sunitinib), and patients with non-pnets should be offered either targeted therapy (that is, everolimus) or somatostatin analogues (ssas-that is, octreotide long-acting release or lanreotide). Evidence from two phase iii trials demonstrated a significant pfs benefit for patients with pnets. For patients with non-pnets, the evidence comes from subgroup analyses of rcts, as well as from a planned interim analysis. Although the evidence has limitations, the rarity of the disease, coupled with the difficulty of conducting methodologically sound trials in the affected population, means that treatment decisions have to make use of the best available evidence. Because of insufficient evidence for both pnets and non-pnets, no evidence-based recommendation can be made for or against other types of targeted therapy, other ssas, chemotherapy, or combination therapy.
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Affiliation(s)
- S. Singh
- Division of Medical Oncology and Hematology, Odette Cancer Centre, Toronto
| | - D. Sivajohanathan
- Department of Oncology, McMaster University, and Program in Evidence-Based Care, Cancer Care Ontario, Hamilton
| | - T. Asmis
- Division of Medical Oncology, The Ottawa Hospital Cancer Centre, Ottawa
| | - C. Cho
- Division of Radiation Oncology, Southlake Regional Health Centre, Newmarket
| | - N. Hammad
- Division of Medical Oncology and Hematology, Cancer Centre of Southeastern Ontario, Kingston General Hospital, Kingston
| | - C. Law
- Department of Surgical Oncology, Odette Cancer Centre, Toronto
| | - R. Wong
- Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto; and
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Enzler T, Fojo T. Long-acting somatostatin analogues in the treatment of unresectable/metastatic neuroendocrine tumors. Semin Oncol 2017; 44:141-156. [PMID: 28923213 DOI: 10.1053/j.seminoncol.2017.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neuroendocrine tumors (NETs) are a relatively rare and heterogeneous group of neoplasms with an annual incidence of ~35 cases per 100,000 people in the United States. The updated World Health Organization (WHO) classification system of gastroenteropancreatic (GEP)-NETs categorizes these tumors according to site of origin, clinical syndrome, and degree of differentiation. Well-differentiated NETs arising from the gastrointestinal tract or lungs (formerly known as carcinoid tumors) are often indolent and slow-growing. In contrast, poorly differentiated neuroendocrine carcinomas (NECs) are aggressive and have a poor prognosis. Due to their insidious onset, most NETs are diagnosed at an advanced stage and a curative approach is not possible. In these patients, medical therapy is limited to disease control, including relief of symptoms that arise from overproduction of peptide hormones by the tumors. Somatostatin analogues (SSAs) have remained the mainstay of symptoms control. In addition to symptoms control, clinical data also support an anti-proliferative effect of SSAs in patients with well- to moderately differentiated NETs. Long-acting SSAs have greatly facilitated their use. This review will focus on two long-acting SSAs, octreotide LAR and lanreotide, and their use in the clinical setting. Information necessary to assess their relative merits is summarized. We conclude these two therapies are interchangeable making value a very important consideration in their use.
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Affiliation(s)
- Thomas Enzler
- Department of Medicine, Division of Hematology Oncology, Columbia University, New York, NY
| | - Tito Fojo
- Department of Medicine, Division of Hematology Oncology, Columbia University, New York, NY; James J. Peter VAMC, Bronx, NY.
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Abstract
Purpose Peptide drugs for antineoplastic therapies usually have low oral bioavailability and short in vivo half-lives, requiring less preferred delivery methods. Lanreotide depot is a sustained-release somatostatin analog (SSA) formulation produced via an innovative peptide self-assembly method. Lanreotide is approved in the USA and Europe to improve progression-free survival (PFS) in patients with unresectable gastroenteropancreatic neuroendocrine tumors (GEP-NETs) and also approved in Europe for symptom control in carcinoid syndrome associated with GEP-NETs. This review discusses how the distinct molecule and formulation of lanreotide depot provide advantages to patients and health care providers, as well as the most recent clinical evidence demonstrating the safety and efficacy of lanreotide depot in inhibiting tumor growth and controlling hormonal symptoms in GEP-NETs. Methodology and Results The lanreotide depot formulation confers a remarkable pharmacokinetic profile with no excipients, comprised only of lanreotide acetate and water. Of note, lanreotide depot constitutes an example for peptide self-assembly based formulations, providing insights that could help future development of sustained-release formulations of other antineoplastic peptides. Most patients with GEP-NETs will present with inoperable or incurable disease; thus, medical management for symptoms and tumor control plays a crucial role. Recent long-term clinical studies have demonstrated that lanreotide depot is well tolerated, prolongs PFS in GEP-NET patients, and significantly reduces symptoms related to carcinoid syndrome. Conclusions The unique depot formulation and delivery method of lanreotide confer advantages in the treatment of metastatic GEP-NETs, contributing to improvements in NET-related symptoms and PFS without reducing quality of life in this patient population.
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Tonelli F, Marini F, Giusti F, Brandi ML. Gastro-entero-pancreatic neuroendocrine tumors in multiple endocrine neoplasia type 1: a therapy update. INTERNATIONAL JOURNAL OF ENDOCRINE ONCOLOGY 2017. [DOI: 10.2217/ije-2016-0017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Gastro-entero-pancreatic neuroendocrine tumors (GEP-NETs) are the second most common tumors in multiple endocrine neoplasia type 1 (MEN1), mainly occurring in pancreatic islets and duodenum, usually as multiple tumors. They can manifest as both nonfunctioning and functioning tumors. Currently, surgical removal of GEP-NETs in MEN1 represents the gold standard curative approach. Conventional medical therapies for sporadic GEP-NETs showed to be effective also in a percentage of MEN1 patients. Innovative medical therapies, that have demonstrated to be effective on sporadic GEP-NETs, still need to be evaluated on MEN1 patients in prospective clinical trials and long-term follow-up. This review resumes current knowledge of MEN1 GEP-NETs, discussing surgical and medical approaches, genetic and molecular bases of tumorigenesis, and presenting novel possible drug therapies.
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Affiliation(s)
- Francesco Tonelli
- Department of Surgery & Translational Medicine, University of Florence, Florence, Italy
| | - Francesca Marini
- Department of Surgery & Translational Medicine, University of Florence, Florence, Italy
| | - Francesca Giusti
- Department of Surgery & Translational Medicine, University of Florence, Florence, Italy
| | - Maria Luisa Brandi
- Department of Surgery & Translational Medicine, University of Florence, Florence, Italy
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Michael M, Garcia-Carbonero R, Weber MM, Lombard-Bohas C, Toumpanakis C, Hicks RJ. The Antiproliferative Role of Lanreotide in Controlling Growth of Neuroendocrine Tumors: A Systematic Review. Oncologist 2017; 22:272-285. [PMID: 28220021 PMCID: PMC5344642 DOI: 10.1634/theoncologist.2016-0305] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 09/27/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Neuroendocrine tumors (NETs) are a heterogeneous group of tumors, with >50% of cases involving the gastrointestinal system or pancreas. Somatostatin analogs (SSAs) are used for treating NET-related secretory syndromes and, more recently, for their antiproliferative effects. We conducted a systematic review of published literature on the antiproliferative efficacy and safety of the SSA lanreotide Autogel in the management of NETs to gain a fuller understanding of the evidence and identify future areas of research. METHODS Searches were conducted in PubMed up to March 16, 2016, and in the proceedings of four congresses from 2013 to 2016. RESULTS Screening of 1,132 publications identified in the searches found 40 relevant publications, including 27 full-length publications and 13 congress abstracts. Twenty-four of these publications reported antiproliferative efficacy data for lanreotide Autogel. The CLARINET study showed that 120 mg lanreotide Autogel every 4 weeks improves progression-free survival (PFS) in patients with gastroenteropancreatic (GEP)-NETs, with grade 1 or grade 2 (Ki-67 <10%) disease, providing class I evidence of its antiproliferative effects. The CLARINET open-label extension study reported a median PFS of 32.8 months with lanreotide Autogel. Other smaller studies generally support CLARINET. CONCLUSION Current clinical evidence shows that lanreotide Autogel has good antiproliferative activity with favorable safety and tolerability in patients with GEP-NETs, suggesting it should be considered as an early first-line treatment in this population. Further studies are needed to assess the potential benefits of higher doses and the use of lanreotide Autogel in combination therapy and as maintenance therapy in the absence of disease progression following other therapies. The Oncologist 2017;22:272-285 IMPLICATIONS FOR PRACTICE: This review presents the current clinical evidence for the antiproliferative activity of lanreotide Autogel in patients with midgut or pancreatic neuroendocrine tumors (NETs) and shows its effectiveness, safety, and tolerability in these patient populations. By systematically presenting all the clinical evidence, the review adds to existing publications by discussing results in a broad range of settings. The review also indicates future directions for investigation of the use of lanreotide Autogel in NETs originating in other locations, in combination therapy, or as maintenance therapy in progressive disease.
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Affiliation(s)
- Michael Michael
- Neuorendocrine Service & Division of Cancer Medicine, Peter MacCallum Cancer Centre, St. Andrews Place, East Melbourne, Australia
| | | | | | | | | | - Rodney J Hicks
- Cancer Imaging & Neuroendocrine Service & Molecular Imaging and Targeted Therapeutics Laboratory, Peter MacCallum Cancer Centre, St. Andrews Place, East Melbourne, Australia
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Sevilla I, Segura Á, Capdevila J, López C, García-Carbonero R, Grande E. Management of controversial gastroenteropancreatic neuroendocrine tumour clinical situations with somatostatin analogues: results of a Delphi questionnaire panel from the NETPraxis program. BMC Cancer 2016; 16:858. [PMID: 27821081 PMCID: PMC5100262 DOI: 10.1186/s12885-016-2901-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/30/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There are clinical situations (CS) in which the use of somatostatin analogs (SSAs) in patients with neuroendocrine tumors (NET) is controversial due to lack of evidence. A Delphi study was conducted to develop common treatment guidelines for these CS, based on clinical practice and expert opinion of Spanish oncologists. METHODS A scientific committee identified 5 CS with a common core (c-c) [non-functioning NET, not susceptible of surgery/locoregional therapy, Ki67 < 10 % (except for CS5: >10 %), ECOG ≤ 2], and controversy regarding use of SSAs, and prepared a Delphi questionnaire of 48 treatment statements. Statements were rated on a 1 (completely disagree) to 9 (completely agree) scale. Responses were grouped by tertiles: 1-3: Disagreement, 4-6: Neutral, 7-9: Agreement. Consensus was reached when the responses of ≥2/3 participants were located in the same tertile as the median value of all reported responses for that statement. RESULTS Sixty five (81.2 %) of 80 invited oncologists with experience in the management of NETs answered a first round of the questionnaire and 57 (87.7 %) of those 65 answered a second round (mean age 43.5 years; 53.8 % women; median time of experience 9 years). Consensus was obtained in 42 (36 agreement and 6 disagreement) of the 48 statements (87.5 %). Regarding CS1 (Enteropancreatic NET, c-c, non-progressive in the last 3-6 months), overall, SSA treatment is recommended (a wait and see approach is anecdotal and reserved for fragile patients or with low tumor load or ki-67 < 2 %); CS2 (Pancreatic NET, c-c), overall, SSA monotherapy is recommended, except when high tumor load or tumor progression exists, where combination therapy would be considered; CS3 [Gastroenteropancreatic (GEP)-NET, c-c, in treatment with anti-proliferative dose of SSA and progressing], overall, SSA maintenance is recommended at the time of progression, with or without adding molecular targeted drugs; CS4 (GEP-NET, c-c, and negative octreoscan®), SSA in monotherapy is only considered in low-risk patients (low tumor load and Ki-67 < 5 %); CS5 [GEP-NET, c-c (ki67 > 10 %), and positive octreoscan®], monotherapy with SSA is mainly considered in patients with comorbidities. CONCLUSION Several recommendations regarding use of SSAs in controversial NET CS were reached in consensus and might be considered as treatment guideline.
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Affiliation(s)
- Isabel Sevilla
- Oncology Unit. Hospital Clínico y Regional de Málaga, Colonia Santa Inés s/n, Málaga, 29010 Spain
| | - Ángel Segura
- Oncology Unit. Hospital Universitario La Fe, Avda. de Fernando Abril Martorell 106, 46026 Valencia, Spain
| | - Jaume Capdevila
- Oncology Unit. Hospital Vall d’Hebron, Pg de la Vall d’Hebron 119-129, 08035 Barcelona, Spain
| | - Carlos López
- Oncology Unit. Hospital Marqués de Valdecilla, Avda. Valdecilla 25, 39008 Santander, Spain
| | - Rocío García-Carbonero
- Oncology Unit. Hospital Universitario 12 de Octubre, Avda. de Córdoba s/n, 28041 Madrid, Spain
| | - Enrique Grande
- Oncology Unit. Hospital Universitario Ramón y Cajal, Ctra. de Colmenar Viejo km. 9.100, 28034 Madrid, Spain
| | - On behalf of GETNE (Spanish Group of NeuroEndocrine Tumors)
- Oncology Unit. Hospital Clínico y Regional de Málaga, Colonia Santa Inés s/n, Málaga, 29010 Spain
- Oncology Unit. Hospital Universitario La Fe, Avda. de Fernando Abril Martorell 106, 46026 Valencia, Spain
- Oncology Unit. Hospital Vall d’Hebron, Pg de la Vall d’Hebron 119-129, 08035 Barcelona, Spain
- Oncology Unit. Hospital Marqués de Valdecilla, Avda. Valdecilla 25, 39008 Santander, Spain
- Oncology Unit. Hospital Universitario 12 de Octubre, Avda. de Córdoba s/n, 28041 Madrid, Spain
- Oncology Unit. Hospital Universitario Ramón y Cajal, Ctra. de Colmenar Viejo km. 9.100, 28034 Madrid, Spain
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Massironi S, Conte D, Rossi RE. Somatostatin analogues in functioning gastroenteropancreatic neuroendocrine tumours: literature review, clinical recommendations and schedules. Scand J Gastroenterol 2016; 51:513-23. [PMID: 26605828 DOI: 10.3109/00365521.2015.1115117] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Neuroendocrine tumours (NETs) represent a heterogeneous group of neoplasms, which include functioning and non-functioning forms. Somatostatin analogues (SSAs) play a key role in the management of these tumours. Herein, we aimed at reviewing the current evidence about the role of SSAs in the treatment of gastro-entero-pancreatic (GEP)-NETs. MATERIAL AND METHODS An extensive bibliographical search was performed in PubMed using the following keywords: gastro-entero-pancreatic neuroendocrine tumours, somatostatin analogues, octreotide, lanreotide, in order to identify all the pertinent English-written articles published between 1990 and 2015. RESULTS SSAs have shown to help the symptomatic and biochemical improvement of patients with NETs and to exhibit a good safety profile. Recent studies have also reported a role for SSAs in tumour growth control, although the results are less impressive and the underlying mechanisms are not fully understood. CONCLUSIONS SSAs are well known as a symptomatic and, to lesser extent, anti-proliferative treatment in GEP-NETs. However, some issues, including optimal dosage, benefits and adverse events of combination with other molecules, and the role of new analogues, remain to be elucidated in further randomised studies.
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Affiliation(s)
- Sara Massironi
- a Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico , Milan , Italy
| | - Dario Conte
- a Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico , Milan , Italy ;,b Department of Pathophysiology and Transplantation , Università Degli Studi Di Milano , Milan , Italy
| | - Roberta Elisa Rossi
- a Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico , Milan , Italy ;,b Department of Pathophysiology and Transplantation , Università Degli Studi Di Milano , Milan , Italy
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Pokuri VK, Fong MK, Iyer R. Octreotide and Lanreotide in Gastroenteropancreatic Neuroendocrine Tumors. Curr Oncol Rep 2016; 18:7. [PMID: 26743514 DOI: 10.1007/s11912-015-0492-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Neuroendocrine tumors are heterogeneous, rare malignancies that arise most commonly in the gastrointestinal tract and pancreas. They often secrete vasoactive substances resulting in carcinoid syndrome and the tumor cells exclusively express somatostatin receptors. Octreotide and lanreotide are the two synthetic somatostatin analogs used for the control of carcinoid symptoms and tumor progression in advanced inoperable disease. Recent pivotal trials (PROMID and CLARINET studies) established their antitumor activity. We discuss the available data to support their use as symptom controlling and antiproliferative agents. This article also reviews the guidelines (National Comprehensive Cancer Network and North American Neuro Endocrine Tumor Society), cost-analysis (suggesting the cost-effectiveness of lanreotide autogel compared to higher doses of octreotide long acting release formulation in refractory patients), and future directions of somatostatin analogs in the management of patients refractory to conventional doses of octreotide and lanreotide.
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Affiliation(s)
- Venkata K Pokuri
- Department of Medical Oncology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Mei Ka Fong
- Department of Pharmacy, Carolinas Healthcare System, Levine Cancer Institute, Charlotte, NC, USA
| | - Renuka Iyer
- Department of Medical Oncology, Roswell Park Cancer Institute, Buffalo, NY, USA.
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Paragliola RM, Prete A, Papi G, Torino F, Corsello A, Pontecorvi A, Corsello SM. Clinical utility of lanreotide Autogel ® in gastroenteropancreatic neuroendocrine tumors. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:3459-3470. [PMID: 27822010 PMCID: PMC5087808 DOI: 10.2147/dddt.s76732] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Somatostatin analogs (SSAs), which were initially used to control hormonal syndromes associated with neuroendocrine neoplasms (NENs), have been successfully proposed as antiproliferative agents, able to control tumor growth in patients affected by gastroenteropancreatic (GEP)-NENs. The development of long-acting formulations of SSAs which require only weekly or monthly injections can improve patient compliance. In particular, lanreotide (LAN) Autogel®, which is a viscous aqueous formulation supplied in ready-to-use prefilled syringes, can be administered every 28–56 days. Since its introduction in the clinical practice, several studies evaluated the clinical utility of LAN Autogel in the medical treatment of GEP-NENs. Although there is no evidence of an overall survival benefit, these studies confirm the efficacy of LAN Autogel in terms of benefit in progression-free survival, and in more than half of cases, a reduction of tumor markers can be observed during treatment with this drug. Moreover, LAN Autogel is widely recognized to be effective in controlling tumor-related symptoms in the majority of patients affected by GEP tumors, especially in patients affected by carcinoid syndrome, improving considerably patients’ quality of life.
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Affiliation(s)
| | - Alessandro Prete
- Department of Medicine, Unit of Endocrinology, Università Cattolica del Sacro Cuore
| | - Giampaolo Papi
- Department of Medicine, Unit of Endocrinology, Università Cattolica del Sacro Cuore
| | | | - Andrea Corsello
- Department of General Medicine and Endocrine Tumor Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Alfredo Pontecorvi
- Department of Medicine, Unit of Endocrinology, Università Cattolica del Sacro Cuore
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Ito T, Lee L, Jensen RT. Treatment of symptomatic neuroendocrine tumor syndromes: recent advances and controversies. Expert Opin Pharmacother 2016; 17:2191-2205. [PMID: 27635672 DOI: 10.1080/14656566.2016.1236916] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Neuroendocrine tumors(NETs), once thought rare, are increasing in frequency in most countries and receiving increasing-attention. NETs present two-treatment problems. A proportion is aggressive and a proportion has a functional, hormone-excess-state(F-NET), each of which must be treated. Recently, there have been many advances, well-covered in reviews/consensus papers on imaging-NETs; new, novel anti-tumor treatments and understanding their pathogenesis. However, little attention has been paid to advances in the treatment of the hormone-excess-state. These advances are usually reported in case-series, and case-reports with few large studies. In this paper these advances are reviewed. Areas covered: Advances in the last 5-years are concentrated on, but a review of literature from the last 10-years was performed. PubMed and other databases (Cochrane, etc.) were searched for F-NET-syndromes including carcinoid-syndrome, as well as meeting-abstracts on NETs. All advances that controlled hormone-excess-states or facilitated-control were covered. These include new medical-therapies [serotonin-synthesis inhibitors(telotristat), Pasireotide, new agents for treating ACTHomas], increased dosing with conventional therapies (octreotide-LAR, Lanreotide-Autogel), mTor inhibitors(everolimus), Tyrosine-kinase inhibitors(sunitinib),cytoreductive surgery, liver-directed therapies (embolization, chemoembolization, radioembolization, RFA), peptide radio-receptor-therapy(PRRT) and 131I-MIBG, ablation of primary F-NETs. Expert opinion: Although many of the newer therapies controlling the hormone-excess-states in F-NETs are reported in relatively few patients, all the approaches show promise. Their description also generates some controversies/unresolved areas,such as the order of these new treatments, their longterm-efficacy, and effectiveness of combinations which may require large,controlled studies.
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Affiliation(s)
- Tetsuhide Ito
- a Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Lingaku Lee
- a Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Robert T Jensen
- b Digestive Diseases Branch , NIDDK, NIH , Bethesda , MD , USA
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Narayanan S, Kunz PL. Role of Somatostatin Analogues in the Treatment of Neuroendocrine Tumors. Hematol Oncol Clin North Am 2016; 30:163-77. [PMID: 26614375 DOI: 10.1016/j.hoc.2015.09.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Neuroendocrine tumors (NETs) are rare epithelial neoplasms with neuroendocrine differentiation originating most commonly in the lungs and gastroenteropancreatic. Treatment includes surgery and other local therapies; treatment of inoperable disease centers around symptom management and control of tumor growth. Somatostatin analogues (SSAs) have been a mainstay of managing hormone-related symptoms. Emerging evidence suggests that they are effective therapies for tumor control also. Peptide receptor radionuclide therapy with radiolabeled SSAs is a new, promising treatment for inoperable or metastatic NETs. This article reviews the role of SSAs in the treatment of NETs.
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Affiliation(s)
- Sujata Narayanan
- Medicine/Oncology, Stanford University School of Medicine, 875 Blake Wilbur Drive, Stanford, CA 94305-5826, USA
| | - Pamela L Kunz
- Medicine/Oncology, Stanford University School of Medicine, 875 Blake Wilbur Drive, Stanford, CA 94305-5826, USA.
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Bisschops R, De Ruyter V, Demolin G, Baert D, Moreels T, Pattyn P, Verhelst H, Lepoutre L, Arts J, Caenepeel P, Ooghe P, Codden T, Maisonobe P, Petrens E, Tack J. Lanreotide Autogel in the Treatment of Idiopathic Refractory Diarrhea: Results of an Exploratory, Controlled, Before and After, Open-label, Multicenter, Prospective Clinical Trial. Clin Ther 2016; 38:1902-1911.e2. [PMID: 27423779 DOI: 10.1016/j.clinthera.2016.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE Chronic idiopathic diarrhea is the passage of loose stools >3 times daily, or a stool weight >200 g/d, persisting for >4 weeks without clear clinical cause. Patients refractory to standard anti-diarrhetics have limited treatment options. Somatostatin analogues have the ability to reduce gastrointestinal secretions and motility. This study evaluated the efficacy and safety of lanreotide Autogel(*) 120 mg in chronic idiopathic diarrhea. METHODS Other anti-diarrhetics were not allowed during the study and were stopped at screening. Patients received lanreotide Autogel 120 mg at baseline and day 28. Stool frequency and consistency (Bristol Stool Scale) were recorded; quality of life (QoL) was assessed using the 36-item Short Form Health Survey and irritable bowel syndrome QoL questionnaires; adverse events were monitored. The primary outcome was the proportion of patients with a reduction of ≥50% or normalization to a mean of ≤3 stools/d at day 28. FINDINGS Thirty-three patients with >3 stools/d at baseline were included; mean (SD) age was 55.2 (16.4) years. Fourteen patients (42.4%) had a response to lanreotide Autogel at day 28 and 17 (51.5%) at day 56. Mean (SD) number of stools decreased significantly from 5.7 (2.2) at baseline to 3.7 (2.2) at day 56 overall (n = 32; P < 0.001). Significant and clinically meaningful improvements in disease-specific QoL were found in the overall populations. No new safety signals emerged. IMPLICATIONS Lanreotide Autogel 120 mg decreased symptoms in these patients with chronic idiopathic refractory diarrhea, and meaningfully improved QoL. These finding have to be confirmed in further clinical trials. ClinicalTrials.gov IDENTIFICATION NCT00891371; Eudract CT 2009-009356-20.
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Affiliation(s)
- Raf Bisschops
- Department of Gastroenterology, University Hospitals Leuven, Leuven, Belgium
| | | | - Gauthier Demolin
- Department of Gastroenterology, CHC Clinique Saint-Joseph, Liège, Belgium
| | - Didier Baert
- Department of Gastroenterology, Maria Middelares Medical Centre, Ghent, Belgium
| | - Tom Moreels
- Department of Gastroenterology, Antwerp University Hospital, Edegem, Belgium
| | - Piet Pattyn
- Department of Abdominal Surgery, Ghent University Hospital, Ghent, Belgium
| | - Hans Verhelst
- Department of Abdominal Surgery, Oost-Limburg Hospital, Genk, Belgium
| | - Luc Lepoutre
- Department of Gastroenterology, Onze-Lieve-Vrouwziekenhuis Hospital, Aalst, Belgium
| | - Joris Arts
- Department of Gastroenterology, University Hospital Sint-Lucas, Brugge, Belgium
| | - Philip Caenepeel
- Department of Gastroenterology, Oost-Limburg Hospital, Genk, Belgium
| | - Patrick Ooghe
- Department of Gastroenterology, Charleroi University Hospital, Charleroi, Belgium
| | - Thierry Codden
- Department of Gastroenterology, Health Centre des Fagnes, Chimay, Belgium
| | | | | | - Jan Tack
- Department of Gastroenterology, University Hospitals Leuven, Leuven, Belgium
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