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This Article Full Text Full Text (PDF) All Versions of this Article: ERC-08-0301v1 16/2/585    most recent Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Durante, C. Articles by Baudin, E. Search for Related Content PubMed PubMed Citation Articles by Durante, C. Articles by Baudin, E.

¹ Service de Médecine Nucléaire et de Cancérologie Endocrinienne
² INSERM u605
³ Département de Radiologie
⁴ Département d'Anatomo-Pathologie
⁵ Département de Chirurgie
⁶ Département de Médecine, Institut Gustave-Roussy, Université Paris XI, 39 rue Camille Desmoulins, 94805 Villejuif Cedex, France

(Correspondence should be addressed to E Baudin; Email: baudin{at}igr.fr)

Survival of metastatic gastroenteropancreatic well-differentiated endocrine carcinoma (GEP WDEC) is not well characterized. We evaluated the long-term outcome and prognostic factors for survival in 118 patients with distant metastases from GEP WDEC. Inclusion criteria were 1) pathological review by a single pathologist according to the present WHO criteria, 2) absence of previous therapy apart from surgery, 3) complete morphological evaluation within 3 months including somatostatin receptor scintigraphy, and 4) follow-up at Gustave-Roussy Institute until death or study's end. Clinical, biological marker, and pathological parameters were analyzed in univariate and multivariate statistical models. Survival after the first complete imaging work-up of the metastatic disease was determined using Kaplan–Meier method. Overall, survival for 5 years after the diagnosis of metastatic disease was 54%. In multivariate analysis, age (hazard ratio (HR): 1.05, 95% confidence interval (CI): 1.01–1.08, P=0.01), the number of liver metastases (HR: 3.4, 95% CI: 1.4–8.3, P=0.01), tumor slope (HR: 1.1, 95% CI: 1.0–1.1, P=0.001), and initial surgery (HR: 0.3, 95% CI: 0.1–0.8, P=0.01) were predictive of survival. Five-year survival was 100%, 91% (95% CI, 51–98%), 62% (95% CI, 37–83%), and 9% (95% CI, 6–32%) when patients had 0, 1, 2, 3 or more poor prognostic features respectively. This study enables the stratification of metastatic GEP WDEC patients into distinct risk groups. These risk categories can be used to tailor therapeutic approaches and also to design and interpret clinical trials.