In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 15_suppl ( 2012-05-20), p. 4020-4020
Abstract:
4020 Background: Long-term survival (LTS) in patients with pancreatic cancer is still rare, even in resectable and potentially curative stages. Few prospective data are available to identify predictive factors. The CONKO-001 study establishing adjuvant gemcitabine (GEM) may provide data to answer this question. Methods: CONKO-001 patients (pts) with an overall survival 〉 5 years were included in this analysis and compared to those with 〈 5 years. Central re-evaluation of the primary histology was done to confirm the diagnosis of pancreatic adenocarcinoma. Univariate analysis with the x²-test identified qualifying factors (p 〈 0.10). Logistic regression with a stepwise selection process was used to investigate the influence of these covariates on LTS. Results: Of the 354 pts included in the intention-to-treat analysis of CONKO-001, 53 (15%) pts with an overall survival of more than 5 years could be identified, for 39 (74%) tumor specimens could be obtained. In 38 (97% of pts with LTS) the diagnosis of adenocarcinoma was confirmed, 1 showed a high-grade neuroendocrine tumor. Relevant factors for all 53 pts with LTS compared to remaining 301 non-LTS pts in univariate analysis were active treatment (GEM) (68% in LTS pts vs 48% in non-LTS pts; p=0.006), tumor grading (G1 17% vs 3%, G2 64% vs 55%, G3 17% vs 40%; p=0.000), tumor-size (T2 15% vs 9%, T3 74% vs 84%; p=0.004) and lymph nodes (N0 47% vs 25% N1 53% vs 74%; p=0.003. Significance could not be demonstrated for resection margin (R0 vs R1), sex, age, Karnofsky performance status ( 〈 80% vs 80% vs 〉 80%) and CA 19-9 (40-100 U/ml vs 〈 40 U/ml) at study entry. In the multivariate analysis tumor grading (gr) (odds ratio gr 3 vs gr 1=0.07; gr 3 vs gr 2= 0.38; p=0.017) and active treatment (odds ratio GEM vs observation=0.38; p=0.004) were the only independent prognostic factors. Conclusions: Long-term survival can be achieved in adenocarcinoma of the pancreas. In pts with completely resected pancreatic cancer, tumor grading and active treatment with GEM were the only predictive factor for LTS.
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/jco.2012.30.15_suppl.4020
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2012
detail.hit.zdb_id:
2005181-5
