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https://www.readbyqxmd.com/read/29430237/downgrading-of-a-g3-neuroendocrine-tumor-to-a-g2-tumor-can-first-line-cytotoxic-chemotherapy-change-the-tumor-biology
#1
Andreas Blesl, Elisabeth Krones, Marion J Pollheimer, Johannes Haybaeck, Ulrike Wiesspeiner, Rainer W Lipp, Patrizia Kump
The antiproliferative treatment options for neuroendocrine tumors (NET)/neuroendocrine carcinomas of the gastrointestinal tract critically depend on the proliferation rate, evaluated by immunohistochemical staining for Ki-67. According to their grading, tumors are treated with somatostatin analogs, mTOR inhibitors, or cytotoxic substances. This case illustrates downgrading of a primarily highly proliferative NET achieved by a variation of cytotoxic chemotherapy regimens, followed by a combination therapy using everolimus together with lanreotide...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29430219/disease-control-on-lanreotide-autogel%C3%A2-120-mg-in-a-patient-with-metastatic-gastrinoma-a-case-report
#2
Maridi Aerts, Hendrik Reynaert
Gastrinomas are functionally active pancreatic neuroendocrine tumors (NETs) secreting gastrin and are associated with local or regional metastases in 60% of the cases. Somatostatin analogs (SSAs) are currently recommended as a first-line treatment for the symptomatic treatment of NETs. Although antiproliferative activity of SSAs has been demonstrated in various cancer types in several in vivo and in vitro studies, clinical benefits with SSAs have been only achieved in a small proportion of patients. We report a disease control on a long-acting SSA lanreotide in a patient with metastatic gastrinoma...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29383428/from-initial-description-by-wermer-to-present-day-men1-what-have-we-learned
#3
Nancy D Perrier
INTRODUCTION: Pancreas, parathyroid, and pituitary, are referred to as the "3 Ps" of MEN1. The time has come to move beyond those Ps and begin to discuss (1) prediction, (2) pausing progression, and (3) prevention of MEN1. METHODS: In preparation for the International Association of Endocrine Surgeons State of the Art address, updates and uncertainties of MEN were reviewed. This included a detailed examination of the MEN1 gene and the library of implicated mutations, exon sequencing databases and cell cycle pathways...
January 30, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29377286/diagnostic-approach-to-subcutaneous-nodules-in-patients-with-neuroendocrine-tumors-treated-with-depot-somatostatin-analogs-a-cross-sectional-study
#4
Pablo Chicharro, Amalia Paniagua, Pedro Rodríguez-Jiménez, Sara Ibañes, Begoña Cortina, Javier Ribeiro, Miguel Ángel Sampedro-Núñez, Javier Fraga, Mónica Marazuela, Esteban Daudén
BACKGROUND: The presence of cutaneous nodules in patients with gastroenteropancreatic neuroendocrine tumors (GEP-NETs) receiving depot somatostatin analogs (SSAs) is a diagnostic challenge as differential diagnosis between injection site reactions and metastases is essential. OBJECTIVE: To characterize the clinical, radiological, cytological and histopathological features of subcutaneous nodules in patients with GEP-NETs treated with SSAs. MATERIALS AND METHODS: Retrospective, cross-sectional study of patients with GEP-NETs treated with SSAs in whom subcutaneous nodules were detected on routine abdominal CT scans...
January 29, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29357081/biochemical-efficacy-of-long-acting-lanreotide-depot-autogel-in-patients-with-acromegaly-na%C3%A3-ve-to-somatostatin-receptor-ligands-analysis-of-three-multicenter-clinical-trials
#5
Hussain Alquraini, Maria Del Pilar Schneider, Beloo Mirakhur, Ariel Barkan
PURPOSE: In clinical research involving acromegalic patients naïve to somatostatin-receptor ligands (SRLs), 19 and 31% of those receiving the SRLs octreotide LAR and pasireotide LAR, respectively, achieved GH < 2.5 ng/mL + normalized IGF-1 concentrations. The proportions achieving control appeared higher in the post-surgery compared with the de-novo setting with pasireotide, but more similar with octreotide. Using pooled data from multicenter clinical trials, we examined the biochemical efficacy of lanreotide depot/Autogel in similar settings...
January 22, 2018: Pituitary
https://www.readbyqxmd.com/read/29201453/the-role-of-multimodal-treatment-in-patients-with-advanced-lung-neuroendocrine-tumors
#6
REVIEW
Nicola Fazio, Antonio Ungaro, Francesca Spada, Chiara Alessandra Cella, Eleonora Pisa, Massimo Barberis, Chiara Grana, Dario Zerini, Emilio Bertani, Dario Ribero, Luigi Funicelli, Guido Bonomo, Davide Ravizza, Juliana Guarize, Filippo De Marinis, Francesco Petrella, Ester Del Signore, Giuseppe Pelosi, Lorenzo Spaggiari
Lung neuroendocrine tumors (NETs) comprise typical (TC) and atypical carcinoids (AC). They represent the well differentiated (WD) or low/intermediate grade forms of lung neuroendocrine neoplasms (NENs). Unlike the lung poorly differentiated NENs, that are usually treated with chemotherapy, lung NETs can be managed with several different therapies, making a multidisciplinary interaction a key point. We critically discussed the multimodal clinical management of patients with advanced lung NETs. Provided that no therapeutic algorithm has been validate so far, each clinical case should be discussed within a NEN-dedicated multidisciplinary team...
November 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29038234/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
#7
George A Fisher, Edward M Wolin, Nilani Liyanage, Susan Pitman Lowenthal, Beloo Mirakhur, Rodney F Pommier, Montaser Shaheen, Aaron Vinik
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...
January 2018: Oncologist
https://www.readbyqxmd.com/read/28970728/real-world-treatment-patterns-of-gastrointestinal-neuroendocrine-tumors-a-claims-database-analysis
#8
Al B Benson Iii, Michael S Broder, Beilei Cai, Eunice Chang, Maureen P Neary, Elya Papoyan
AIM: To describe real-world treatment patterns of gastrointestinal neuroendocrine tumors (GI NET). METHODS: In this retrospective cohort study, we used 2009-2014 data from 2 United States commercial claims databases to examine newly pharmacologically treated patients using tabular and graphical techniques. Treatments included somatostatin analogues (SSA), cytotoxic chemotherapy (CC), targeted therapy (TT), interferon (IF) and combinations. We identified patients at least 18 years of age, with ≥ 1 inpatient or ≥ 2 outpatient claims for GI NET who initiated pharmacologic treatment from 7/1/09-6/30/14...
September 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28947880/current-treatment-options-for-gastroenteropancreatic-neuroendocrine-tumors-with-a-focus-on-the-role-of-lanreotide
#9
REVIEW
Beata Kos-Kudła, Jarosław Ćwikła, Marek Ruchała, Alicja Hubalewska-Dydejczyk, Barbara Jarzab, Jolanta Krajewska, Grzegorz Kamiński
Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are a large and very diverse group of neoplasms. Clinical presentation of NETs depends on the site of the primary tumor and whether the tumor is functioning (i.e., secreting peptides or neuroamines that produce symptoms). The diagnosis of GEP-NET is further complicated by symptomatic differences that occur depending on the type of secreted peptide or neuroamine. Due to their heterogeneity and unique characteristics, early diagnosis of GEP-NETs is difficult, which increases the likelihood of metastatic disease and reduces the scope of therapeutic possibilities...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/28944744/progress-in-the-formulation-and-delivery-of-somatostatin-analogs-for-acromegaly
#10
Sarinj Fattah, David J Brayden
A 14 amino acid cystin bridge containing neuropeptide was discovered in 1973 and designated as growth hormone-inhibiting hormone, in other words, somatostatin. Its discovery led to the synthesis of three analogs which were licensed for the treatment of acromegaly: octreotide, lanreotide and pasireotide. Somatostatin analogs are currently approved only as either subcutaneous or intramuscular long-acting injections. We examine the challenges that must be overcome to create oral formulations of somatostatin analogs and examine selected clinical trial data...
October 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28923213/long-acting-somatostatin-analogues-in-the-treatment-of-unresectable-metastatic-neuroendocrine-tumors
#11
REVIEW
Thomas Enzler, Tito Fojo
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...
April 2017: Seminars in Oncology
https://www.readbyqxmd.com/read/28874893/systemic-therapy-in-incurable-gastroenteropancreatic-neuroendocrine-tumours-a-clinical-practice-guideline
#12
S Singh, D Sivajohanathan, T Asmis, C Cho, N Hammad, C Law, R Wong, K Zbuk
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...
August 2017: Current Oncology
https://www.readbyqxmd.com/read/28868578/management-of-pulmonary-neuroendocrine-tumors
#13
REVIEW
Robert A Ramirez, Aman Chauhan, Juan Gimenez, Katharine E H Thomas, Ioni Kokodis, Brianne A Voros
Neuroendocrine tumors (NETs) of the lung are divided into 4 major types: small cell lung cancer (SCLC), large cell neuroendocrine carcinoma (LCNEC), atypical carcinoid (AC) or typical carcinoid (TC). Each classification has distinctly different treatment paradigms, making an accurate initial diagnosis essential. The inconsistent clinical presentation of this disease, however, makes this difficult. The objective of this manuscript is to detail the diagnosis and management of the well differentiated pulmonary carcinoid (PC) tumors...
September 4, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28860831/budget-impact-of-somatostatin-analogs-as-treatment-for-metastatic-gastroenteropancreatic-neuroendocrine-tumors-in-us-hospitals
#14
Jesse D Ortendahl, Sonia J Pulgar, Beloo Mirakhur, David Cox, Tanya Gk Bentley, Alexandria T Phan
OBJECTIVE: With the introduction of new therapies, hospitals have to plan spending limited resources in a cost-effective manner. To assist in identifying the optimal treatment for patients with locally advanced or metastatic gastroenteropancreatic neuroendocrine tumors, budget impact modeling was used to estimate the financial implications of adoption and diffusion of somatostatin analogs (SSAs). PATIENTS AND METHODS: A hypothetical cohort of 500 gastroenteropancreatic neuroendocrine tumor patients was assessed in an economic model, with the proportion with metastatic disease treated with an SSA estimated using published data...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/28852309/everolimus-halts-hepatic-cystogenesis-in-a-rodent-model-of-polycystic-liver-disease
#15
Frederik Temmerman, Feng Chen, Louis Libbrecht, Ingrid Vander Elst, Petra Windmolders, Yuanbo Feng, Yicheng Ni, Humbert De Smedt, Frederik Nevens, Jos van Pelt
AIM: To develop a MRI-based method for accurate determination of liver volume (LV) and to explore the effect of long-term everolimus (EVR) treatment on LV in PCK rats with hepatomegaly. METHODS: Thirty-one female PCK rats (model for polycystic-liver-disease: PCLD) were randomized into 3 groups and treatment was started at 16 wk, at the moment of extensive hepatomegaly (comparable to what is done in the human disease). Animals received: controls (n = 14), lanreotide (LAN: 3 mg/kg per 2 wk) (n = 10) or everolimus (EVR: 1 mg/kg per day) (n = 7)...
August 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28835453/aip-and-the-somatostatin-system-in-pituitary-tumours
#16
REVIEW
Alejandro Ibáñez-Costa, Márta Korbonits
Classic somatostatin analogues aimed at somatostatin receptor type 2, such as octreotide and lanreotide, represent the mainstay of medical treatment for acromegaly. These agents have the potential to decrease hormone secretion and reduce tumour size. Patients with a germline mutation in the aryl hydrocarbon receptor-interacting protein gene, AIP, develop young-onset acromegaly, poorly responsive to pharmacological therapy. In this review, we summarise the most recent studies on AIP-related pituitary adenomas, paying special attention to the causes of somatostatin resistance; the somatostatin receptor profile including type 2, type 5 and truncated variants; the role of G proteins in this pathology; the use of first and second generation somatostatin analogues; and the role of ZAC1, a zinc-finger protein with expression linked to AIP in somatotrophinoma models and acting as a key mediator of octreotide response...
December 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28822091/effect-of-ap102-a-subtype-2-and-5-specific-somatostatin-analog-on-glucose-metabolism-in-rats
#17
Erika Tarasco, Petra Seebeck, Svende Pfundstein, Adrian F Daly, Philippe J Eugster, Alan G Harris, Eric Grouzmann, Thomas A Lutz, Christina N Boyle
PURPOSE: Somatostatin analogs are widely used to treat conditions associated with hormonal hypersecretion such as acromegaly and metastatic neuroendocrine tumors. First generation somatostatin analogs, such as octreotide and lanreotide, have high affinity for somatostatin receptor subtype 2 (SSTR2), but have incomplete efficacy in many patients. Pasireotide targets multiple SSTRs, having the highest affinity for SSTR5, but causes hyperglycemia and diabetes mellitus in preclinical and clinical studies...
October 2017: Endocrine
https://www.readbyqxmd.com/read/28752973/-differences-of-therapeutic-efficacy-between-different-kinds-of-somatostatin-analogue-for-primary-hepatocellular-carcinoma
#18
Xiu-He Lü, Chun-Hui Wang, Yan Xie
OBJECTIVE: To explore the effects of SOM230, octreotide and lanreotide on hepatocellular carcinoma cell line Bel-7402 In vivoand In vitro, and to analyze the differences of their therapeutic efficacy with relevant mechanisms. METHODS: At different time points (24, 48, 72 h), the cell counting kit-8 (CCK8) was used to evaluate cell proliferation (drug concentration 1×10(-10)-1×10(-5)mol/L) and the Annexin Ⅴ-FITC/PI staining was used to assess cell apoptosis (drug concentration 1×10(-5)mol/L), while the real-time quantitative PCR was used to detect cellular SSTRexpression changes before and after interventions...
July 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28741071/a-multicenter-observational-study-of-lanreotide-depot-autogel-lan-in-patients-with-acromegaly-in-the-united-states-2-year-experience-from-the-soda-registry
#19
Roberto Salvatori, Murray B Gordon, Whitney W Woodmansee, Adriana G Ioachimescu, Don W Carver, Beloo Mirakhur, David Cox, Mark E Molitch
PURPOSE: This analysis evaluates the 2-year effectiveness and safety of lanreotide depot/autogel (LAN), as well as treatment convenience and acromegaly symptom relief, from the Somatuline® Depot for Acromegaly (SODA) registry, a post-marketing, open-label, observational, multicenter, United States registry study. METHODS: Patients with acromegaly treated with LAN were eligible for enrollment. Demographics, LAN dose, extended dosing interval (EDI) (interval of injections ≥42 days), insulin-like growth factor 1 (IGF-1), growth hormone (GH), glycated hemoglobin, adverse events (AEs), injection convenience, and symptom data were collected...
December 2017: Pituitary
https://www.readbyqxmd.com/read/28728148/the-role-of-cytotoxic-chemotherapy-in-advanced-pancreatic-neuroendocrine-tumors
#20
Sebastian Krug, Thomas M Gress, Patrick Michl, Anja Rinke
BACKGROUND: Pancreatic neuroendocrine tumors (PNETs) are rare neoplasms accounting for less than 5% of all pancreatic malignancies. These tumors are characterized by clinical and prognostical heterogeneity and are predominantly diagnosed in a metastatic stage. Cytotoxic chemotherapy, along with alkylating agents and antimetabolites as well as molecular targeted agents (everolimus, sunitinib), is used in the treatment of advanced PNETs. After the approval of lanreotide for unresectable PNETs, an additional therapeutic option has become available; however, the best sequence of therapies and patient stratification to different treatments remains challenging...
2017: Digestion
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