In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 4_suppl ( 2012-02-01), p. 219-219
Abstract:
219 Background: Identifying PC patients at high risk for cachexia may allow for early intervention to prevent it. Symptoms such as pain, nausea and anorexia may predict weight loss. Inflammatory cytokines are also associated with cachexia. We evaluated the ability of each to predict weight loss in newly diagnosed PC patients. Methods: Using the M. D. Anderson Symptom Inventory (MDASI), we assessed baseline symptoms in untreated advanced or metastatic PC patients. The survey assesses severity of symptoms on a 0-10 scale. Baseline serum levels of IL-1a, IL-1b, IGF-1, CXCL-12, CXCL-16, CRP, IL-6, IL-8, VEGF, CEA, and CA 19-9 were measured via ELISA. Using STATA (version 12), we generated multivariable logistic regression models with a backward selection procedure. This allowed us to evaluate all potential univariate correlates with 5% and 10% weight loss at P 〈 .1 to create a multivariate model containing variables of p 〈 .05. Student t-test was used to compare the mean values of cytokines across different strata. Results: We evaluated 72 patients (33M/39F). Weight loss of 〉 5% or death was observed in 44 patients (62%) and 〉 10% or death in 24 (34%). 61 pts (30M/31F) survived sixty days after the start of treatment with 5% and 10% weight loss seen in 33 (54%) and 13 (21%), respectively. Baseline severe loss of appetite was most strongly associated with weight loss (OR 15.3, p=.005), compared to those with a moderate loss of appetite (OR 4.7, p=.058), nausea (OR 9.4, p=.048), or shortness of breath (OR 7.4, p=.063). Neither diarrhea nor vomiting correlated with weight loss, nor did age, tumor markers, or treatment with platinum drugs, opiates, or erlotinib. Baseline cytokine levels were available for 23 patients. Mean CXCL-16 (p=.05) and IL-6 (p=.045) levels were greater in patients with weight loss. Serum erythropoietin levels may be negatively associated with weight loss (p=0.06). An analysis of the remaining patients’ samples will be available at the meeting. Conclusions: Both alterations in serum cytokines and specific symptoms may predict the development of cachexia. A more robust analysis of circulating cytokines may allow us to design interventions which prevent or delay cachexia in patients with advanced pancreatic cancer.
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/jco.2012.30.4_suppl.219
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2012
detail.hit.zdb_id:
2005181-5
