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Sökning: WFRF:(Kwekkeboom Dik J.)

  • Resultat 1-9 av 9
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  • Hicks, Rodney J., et al. (författare)
  • ENETS Consensus Guidelines for the Standards of Care in Neuroendocrine Neoplasms : Peptide Receptor Radionuclide Therapy with Radiolabelled Somatostatin Analogues
  • 2017
  • Ingår i: Neuroendocrinology. - : KARGER. - 0028-3835 .- 1423-0194. ; 105:3, s. 295-309
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of these guidelines is to assist physicians caring for patients with neuroendocrine neoplasia in considering eligibility criteria for peptide receptor radionuclide therapy (PRRT) and in defining the minimum requirements for PRRT. It is not these guidelines' aim to give recommendations on the use of specific radiolabelled somatostatin analogues for PRRT as different analogues are being used, and their availability is governed by varying international regulations. However, a recent randomized controlled trial, NETTER-1, has provided evidence that may establish Lu-177-DOTA-octreotate (LutaThera (R)) as the first widely approved agent. It also makes recommendations on what minimal patient, tumour, and treatment outcome characteristics should be reported for PRRT to facilitate robust comparisons between studies.
  • Strosberg, Jonathan R., et al. (författare)
  • NETTER-1 phase III : Progression-free survival, radiographic response, and preliminary overall survival results in patients with midgut neuroendocrine tumors treated with 177-Lu-Dotatate
  • 2016
  • Ingår i: Journal of Clinical Oncology. - Univ S Florida, H Lee Moffitt Canc Ctr, Tampa, FL 33682 USA. Univ Kentucky, Lexington, KY USA. Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA. Dana Farber Canc Inst, Boston, MA 02115 USA. Vet Adm Med Ctr, Iowa City, IA USA. Royal Free Hosp, Pond St, London NW3 2QG, England. Zent Klin Bad Berka, Bad Berka, Germany. Stanford Univ, Sch Med, Stanford, CA 94305 USA. Mayo Clin, Coll Med, Dept Oncol, Rochester, MN USA. Cedars Sinai Med Ctr, Samuel Oschin Comprehens Canc Inst, Los Angeles, CA 90048 USA. Univ Uppsala Hosp, Uppsala, Sweden. Adv Accelerator Applicat, New York, NY USA. Erasmus Univ, Med Ctr, Rotterdam, Netherlands. Beaujon Hosp, Clichy, France. Erasmus MC, Rotterdam, Netherlands.. - 0732-183X .- 1527-7755. ; 34:4
  • Tidskriftsartikel (övrigt vetenskapligt)
  • Sundin, Anders, 1954-, et al. (författare)
  • ENETS Consensus Guidelines for the Standards of Care in Neuroendocrine Tumors : Radiological, Nuclear Medicine & Hybrid Imaging.
  • 2017
  • Ingår i: Neuroendocrinology. - 0028-3835 .- 1423-0194. ; 105:3, s. 212-244
  • Tidskriftsartikel (refereegranskat)abstract
    • Contrast-enhanced computed tomography (CT) of the neckthorax-abdomen and pelvis, including 3-phase examination of the liver, constitutes the basic imaging for primary neuroendocrine tumor (NET) diagnosis, staging, surveillance, and therapy monitoring. CT characterization of lymph nodes is difficult because of inadequate size criteria (short axis diameter), and bone metastases are often missed. Contrast-enhanced magnetic resonance imaging (MRI) including diffusion-weighted imaging is preferred for the examination of the liver, pancreas, brain and bone. MRI may miss small lung metastases. MRI is less well suited than CT for the examination of extended body areas because of the longer examination procedure. Ultrasonography (US) frequently provides the initial diagnosis of liver metastases and contrast-enhanced US is excellent to characterize liver lesions that remain equivocal on CT/MRI. US is the method of choice to guide the biopsy needle for the histopathological NET diagnosis. US cannot visualize thoracic NET lesions for which CTguided biopsy therefore is used. Endocopic US is the most sensitive method to diagnose pancreatic NETs, and additionally allows for biopsy. Intraoperative US facilitates lesion detection in the pancreas and liver. Somatostatin receptor imaging should be a part of the tumor staging, preoperative imaging and restaging, for which 68 Ga-DOTA-somatostatin analog PET/CT is recommended, which is vastly superior to somatostatin receptor scintigraphy, and facilitates the diagnosis of most types of NET lesions, for example lymph node metastases, bone metastases, liver metastases, peritoneal lesions, and primary small intestinal NETs. (18)FDG-PET/CT is better suited for G3 and high G2 NETs, which generally have higher glucose metabolism and less somatostatin receptor expression than low-grade NETs, and additionally provides prognostic information.
  • van Essen, Martijn, et al. (författare)
  • Neuroendocrine tumours : the role of imaging for diagnosis and therapy
  • 2014
  • Ingår i: Nature Reviews Endocrinology. - 1759-5029 .- 1759-5037. ; 10:2, s. 102-114
  • Forskningsöversikt (refereegranskat)abstract
    • In patients with neuroendocrine tumours (NETs), a combination of morphological imaging and nuclear medicine techniques is mandatory for primary tumour visualization, staging and evaluation of somatostatin receptor status. CT and MRI are well-suited for discerning small lesions that might escape detection by single photon emission tomography (SPECT) or PET, as well as for assessing the local invasiveness of the tumour or the response to therapy. Somatostatin receptor imaging, by (111)In-pentetreotide scintigraphy or PET with (68)Ga-labelled somatostatin analogues, frequently identifies additional lesions that are not visible on CT or MRI scans. Currently, somatostatin receptor scintigraphy with (111)In-pentetreotide is the more frequently available of the two techniques to determine somatostatin receptor expression and is needed to select patients for peptide receptor radionuclide therapy. In the future, because of its higher sensitivity, PET with (68)Ga-labelled somatostatin analogues is expected to replace somatostatin receptor scintigraphy. Whereas (18)F-FDG-PET is only used in high-grade neuroendocrine cancers, PET-CT with (18)F-dihydroxy-L-phenylalanine or (11)C-5-hydroxy-L-tryptophan is a useful problem-solving tool and could be considered for the evaluation of therapy response in the future. This article reviews the role of imaging for the diagnosis and management of intestinal and pancreatic NETs. Response evaluation and controversies in NET imaging will also be discussed.
  • Öberg, Kjell E., et al. (författare)
  • Role of somatostatins in gastroenteropancreatic neuroendocrine tumor development and therapy
  • 2010
  • Ingår i: Gastroenterology. - 0016-5085 .- 1528-0012. ; 139:3, s. 742-753, 753.e1
  • Forskningsöversikt (refereegranskat)abstract
    • The incidence and prevalence of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) have increased in the past 20 years. GEP-NETs are heterogeneous tumors, in terms of clinical and biological features, that originate from the pancreas or the intestinal tract. Some GEP-NETs grow very slowly, some grow rapidly and do not cause symptoms, and others cause hormone hypersecretion and associated symptoms. Most GEP-NETs overexpress receptors for somatostatins. Somatostatins inhibit the release of many hormones and other secretory proteins; their effects are mediated by G protein-coupled receptors that are expressed in a tissue-specific manner. Most GEP-NETs overexpress the somatostatin receptor SSTR2; somatostatin analogues are the best therapeutic option for functional neuroendocrine tumors because they reduce hormone-related symptoms and also have antitumor effects. Long-acting formulations of somatostatin analogues stabilize tumor growth over long periods. The development of radioactive analogues for imaging and peptide receptor radiotherapy has improved the management of GEP-NETs. Peptide receptor radiotherapy has significant antitumor effects, increasing overall survival times of patients with tumors that express a high density of SSTRs, particularly SSTR2 and SSTR5. The multi-receptor somatostatin analogue SOM230 (pasireotide) and chimeric molecules that bind SSTR2 and the dopamine receptor D2 are also being developed to treat patients with GEP-NETs. Combinations of radioactive labeled and unlabeled somatostatin analogues and therapeutics that inhibit other signaling pathways, such as mammalian target of rapamycin (mTOR) and vascular endothelial growth factor, might be the most effective therapeutics for GEP-NETs.
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  • Resultat 1-9 av 9

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