In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. e16782-e16782
Abstract:
e16782 Background: New BKs are urgently needed in order to improve PDAC patient’s outcome. In this sense, the main aim of this multicenter and prospective project is to find predictive and/or prognostic BKs based on many cytokines that are produced in cancer microenvironment and can nowadays be accurately analyzed. Methods: Patients diagnosed of potentially resectable PDAC with poor prognostic factors and treated with neoadjuvant treatment are being included. Serial analyses (basal, with TC, with surgery and time of relapse/or after 1y of follow-up) of serum levels of 80 cytokines are being done. Results: With a median follow-up of 11,25 months (m) (4,67-38,28) 22 patients (pt) with median of age of 62,5 y-0, most of them men (63.6%) have been included, with radical surgery performed in 14 of them (2 pts with bypass). Seven operated pt received adjuvant treatment and 12 operated pt developed progression of disease. 18 pt have received nab-paclitaxel and gemcitabine as perioperative treatment and 4 received Folfirinox. Perineural and vascular invasion were confirmed after surgery in 45,5% and 27,3% of cases, respectively. Positive nodes were found in 40,9% of them, being the median of positive and resected nodes of 1 (0-14) and 26 respectively. Surgical margins were negative (R0) in 64,3% of cases (35,7% R1). Pathological response was described as partial in 13,6%, with no changes in 31,8% and progression in 13,6%. Globally, PFS and OS were 13,50 m (CI95%: 6,44-20,55) and 17,31 m (CI 95% 8,86-25,76). Significant differences (p = 0,002) were observed in cases in which radical surgery had been performed with PFS of 13,5 m (9,34-17,66) and 3.97 m (0-8,23) for unresectable patients. Regarding the cytokine array, we observed different PFS outcome based on basal MCP3 levels (low: 16,32 m CI 95%: 5,02-27,63; high: 7,52 m CI95%: 6,23-8.81, p = 0,023), basal Oncostatin (high: 7,12 m CI95%: 3,09-11,15, low: not reached; p = 0,007) or basal Eotaxin (low: 7,12 m CI 95%: 5,75-8,50; high: not reached, p = 0,029). A cytokine score was created based on these results, maintained significant differences for PFS (16,32 m CI95%: 5,07-27,57 vs 6,53 m CI95%: 2,75-10,32, p = 0.003). Our cytokine score showed a significant role as independent prognosis factor in multivariate analysis (HR: 0,196 CI95%: 0,042-0,918; p = 0.039). Conclusions: In potentially resectable/borderline PDAC our basal cytokine score seems to be able to discriminate as independent prognosis factor between those patients that will get significant benefit from neoadjuvant treatment from those that will not
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/JCO.2020.38.15_suppl.e16782
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2020
detail.hit.zdb_id:
2005181-5
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