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Best Therapy for Patients With Neuroendocrine Tumors

04:38 EDT 20th April 2014 | BioPortfolio

Summary

A prospective observational study containing three arms comprising different therapeutic measures to treat patients with neuroendocrine tumors in advanced stages. The therapy arms include local ablative therapy such as TACE or SIRT, surgery and RFA with peptide receptor radiotherapy.

Description

Study design:

Prospective observational study comparing ablative measures as TACE or SIRT with surgery/RFA and with peptide receptor radio-therapy in patients with advanced well-differentiated neuroendocrine tumors with lymph node or distant metastases (N1, M1) Prospective evaluation Primary end points: time to progression Secondary end points: survival, quality of life (EORTC-QLQ30), weight, time of hospitalization, Karnofsky index) Non-randomized cohort study Number of patients needed in all groups: 70 per group, 210 overall Evaluation of response to therapy every 3-6 months by imaging, clinical status, weight, quality of life, Karnofsky-index Cross-over allowed if therapy changes

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Neuroendocrine Tumors

Location

Zentralklinik Bad Berka
Bad Berka
Germany
99437

Status

Recruiting

Source

Zentralklinik Bad Berka

Results (where available)

View Results

Links

Medical and Biotech [MESH] Definitions

Tumors whose cells possess secretory granules and originate from the neuroectoderm, i.e., the cells of the ectoblast or epiblast that program the neuroendocrine system. Common properties across most neuroendocrine tumors include ectopic hormone production (often via APUD CELLS), the presence of tumor-associated antigens, and isozyme composition.

A group of carcinomas which share a characteristic morphology, often being composed of clusters and trabecular sheets of round "blue cells", granular chromatin, and an attenuated rim of poorly demarcated cytoplasm. Neuroendocrine tumors include carcinoids, small ("oat") cell carcinomas, medullary carcinoma of the thyroid, Merkel cell tumor, cutaneous neuroendocrine carcinoma, pancreatic islet cell tumors, and pheochromocytoma. Neurosecretory granules are found within the tumor cells. (Segen, Dictionary of Modern Medicine, 1992)

A 38-kDa integral membrane glycoprotein of the presynaptic vesicles in neuron and neuroendocrine cells. It is expressed by a variety of normal and neoplastic neuroendocrine cells and is therefore used as an immunocytochemical marker for neuroendocrine differentiation in various tumors. In ALZHEIMER DISEASE and other dementing disorders, there is an important synapse loss due in part to a decrease of synaptophysin in the presynaptic vesicles.

An acidic protein found in the NEUROENDOCRINE SYSTEM that functions as a molecular chaperone for PROPROTEIN CONVERTASE 2.

A usually small, slow-growing neoplasm composed of islands of rounded, oxyphilic, or spindle-shaped cells of medium size, with moderately small vesicular nuclei, and covered by intact mucosa with a yellow cut surface. The tumor can occur anywhere in the gastrointestinal tract (and in the lungs and other sites); approximately 90% arise in the appendix. It is now established that these tumors are of neuroendocrine origin and derive from a primitive stem cell. (From Stedman, 25th ed & Holland et al., Cancer Medicine, 3d ed, p1182)

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