Testosterone levels in metastatic castration-resistant prostate cancer (mCRPC).

2015 ◽  
Vol 33 (7_suppl) ◽  
pp. 191-191 ◽  
Author(s):  
Christoph A. J. von Klot ◽  
Alena Boeker ◽  
Thomas R. W. Herrmann ◽  
Mario W. Kramer ◽  
Markus A. Kuczyk ◽  
...  
Keyword(s):  
Median Survival ◽  
Second Generation ◽  
Cox Regression ◽  
Abiraterone Acetate ◽  
Rank Test ◽  
Testosterone Levels ◽  
Risk Of Death ◽  
Log Rank Test ◽  
Kaplan Meier

191 Background: It is common practice to continue anti-androgen therapy in terms of androgendeprivation when performing chemotherapy or androgendeprivation with new second generation therapeutic agents such as enzalutamide or abiraterone acetate. Clinical Studies aiming at the question whether continuation of conventional ADT is necessary in this setting are currently recruiting. In this study we analyzed androgen deprivation in patients with mCRPC under chemotherapy and second generation androgen suppression. Methods: Out of 620 screened patients a total of 36 patients with continuous testosterone monitoring and mCRPC underwent therapy with docetaxel, abiraterone acetate, enzalutamide, carboplatin, carbozantinib or cabazitaxel and were evaluated. Data were gathered from our center over a median follow up period of 27.8 (0.6 - 65.1) month. A cutoff of 0.5 ng/dL was used to discriminate patients according to testosterone castration levels. Statistical evaluation was performed applying Kaplan Meier survival estimates, Cox regression and log rank test. Results: Median follow up was 26.2 month (range 1.4 - 64.8 month). Mean patient age was 70.9 years (range 51 - 86 years). The mean testosterone concentration in our cohort was 0.5 ng/dL. Serum testosterone levels varied greatly: ranging from 0 to 16 ng/dL. A total of 18 patients died during follow up. Median survival over all patients according to Kaplan-Meier survival estimation was 38.7 month (95% CI: 31 - NA month). Median survival for patients with testosterone levels below and above 0.5 ng/dL were 48.67 and 18.13 month respectively (log rank test: p = 0.0029). In Cox regression analysis, the hazard ratio for risk of death for patients with testosterone concentrations > 0.5ng/dL was 6.03 (95% CI: 1.5 - 25, p - 0.0132). For the covariates PSA velocity, patient age and primary Gleason score there was no significant effect on risk of death (p = 0.0597, 0.5006, 0.7354). Conclusions: In patients with mCRPC i.e rising PSA or progression under androgen deprivation, conventional suppression of testosterone levels still represents a vital factor for overall survival even at the mCRPC stage and under therapy with second line anti hormonal therapeutic medication and chemotherapy.

Prognostic value of immunohistochemical phenotypes (IP) of 141 operable breast cancer patients (pts) included in phase III trials of adjuvant therapy

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 21040-21040
Author(s):  
R. Trujillo ◽  
E. Gallego ◽  
A. Márquez ◽  
N. Ribelles ◽  
J. Trigo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cox Regression ◽  
Phase Iii ◽  
Rank Test ◽  
Prognostic Effect ◽  
Log Rank Test ◽  
Kaplan Meier ◽  
Phase Iii Trials ◽  
Her 2

21040 Background: Gene expression arrays and IP studies classified breast cancer in three distinct subtypes: basal, HER2/neu and luminal that are associated with different clinical outcomes. Methods: In 141 pts with operable breast cancer, included in phase III trials of adjuvant therapy in our center, immunohistochemical staining was performed on 3μm sections of paraffin blocks, containing tissue-arrays of tumour tissue.A basal phenotype (BP) was defined by negative estrogen receptor (ER) and progesterone receptor (PR) and positive cytokeratin (CK) 5/6 or EGFR immunoreactivity. HER2/neu phenotype as positive c-erb B2 by HercepTest™ and luminal phenotype (LP) by positive ER, PR and CK 7/8 and negative HER-2. Survival curves were calculated by the Kaplan-Meier method. The differences between survivals were estimated using the log rank test. Multivariate Cox regression analysis was used to evaluate any independent prognostic effect of the variables on disease-free survival (DFS). Results: Complete clinical follow-up information was available for 141 pts. The median follow-up period was 52 months (range 1–103 months). During this period, 13.8% pts died from breast cancer and 27.7% pts relapsed. At the time of the primary diagnosis 10.4% of the pts had lymph node negative disease and 89.6% had positive lymph nodes. 50.8% pts received taxane chemotherapy, 7.7% Trastuzumab, 62.3% radiotherapy and 61% pts received hormonotherapy. Positivity for LP was 65.2%, BP 9.9% and Her-2 phenotype 8.5%. 16.3% didn't fit for any of the three subtypes. Median DFS for BP: 24 moths, for LP and Her-2 phenotypes median DFS was not reached. 5 years DFS were; BP: 19%, LP: 63% and Her-2: 56%. Kaplan-Meier survival analyses demonstrated that the presence of a detectable BP was highly significantly associated with a worse DFS compared with the presence of a LP, log rank test (p= 0.0001). Multivariate Cox regression analyses estimated that the prognostic effect of BP in relation to DFS was independent of lymph node, stage and tumor size, HR: 0.12 95% CI (0.05–0.2). Conclusions: We found that expression of BP was associated with poor prognostic in the context of randomized phase III trials. No significant financial relationships to disclose.

scholarly journals 308 Association of Diabetes and Frailty with Mortality in Middle-Aged and Older Europeans

2019 ◽  
Vol 48 (Supplement_3) ◽  
pp. iii17-iii65
Author(s):  
Mark O'Donovan ◽  
Duygu Sezgin ◽  
Aaron Liew ◽  
Rónán O'Caoimh
Keyword(s):  
Sex Education ◽  
Cox Regression ◽  
Metastatic Cancer ◽  
Frailty Index ◽  
Rank Test ◽  
Middle Aged ◽  
Log Rank Test ◽  
Kaplan Meier ◽  
Age Related

Abstract Background Frailty is a common, multi-factorial, age-related syndrome commonly observed in people with diabetes. Although older diabetics are prone to adverse healthcare outcomes and diabetes increases the risk of developing frailty, little is known about the effects of frailty on diabetes. This paper examines the association between diabetes, frailty, and mortality in Europeans aged ≥50 years. Methods Data were included from The Survey of Health, Ageing and Retirement in Europe (SHARE) waves one and six. A participant’s first interview was taken as the baseline and subsequent waves were used for mortality follow-up (time and cause). Frailty and pre-frailty were measured using established cut-offs using the Physical Phenotype (SHARE-FI) and a 55-item Frailty Index (FI-55). Kaplan-Meier survival analysis was used to assess the relationship between frailty and mortality in people with diabetes and significance tested using log-rank test. Cox regression was used to adjust for potential confounders (age, sex, education, income, employment, alcohol use, smoking, hypertension, hypercholesterolaemia, myocardial infarction, stroke, metastatic cancer, chronic lung disease, polypharmacy, self-perceived health and depression). Results Data from 8,954 diabetics aged 50-99 years were included with 1,598 deaths (17.8%). According to the SHARE-FI, 1,971 (22.0%) were frail, 4,183 (46.7%) pre-frail and 2,800 (31.3%) robust. According to the Kaplan-Meier log-rank test survival varied significantly across frailty strata according to both indexes (p<0.001). At 10-year follow-up, adjusting for confounders SHARE-FI frailty and pre-frailty were significantly associated with mortality, adjusted Hazard Ratio (HR) 2.19, (95% CI:1.66-2.89), and 1.38 (95% CI:1.09-1.74), respectively. Results were similar using the FI-55, HR for frailty 1.66 (95% CI:1.09-2.54). Causes of mortality were significantly different according to frailty status (p<0.05). Conclusion Frailty and pre-frailty are independent risk factors for mortality in diabetics. The identification of frailty is important for the risk-stratification and management of middle aged and older patients with diabetes and should be included in the routine assessment of these high-risk individuals.

scholarly journals The Poor Survival among Pulmonary Tuberculosis Patients in Chiapas, Mexico: The Case of Los Altos Region

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
J. C. Nájera-Ortiz ◽  
H. J. Sánchez-Pérez ◽  
H. Ochoa-Díaz-López ◽  
G. Leal-Fernández ◽  
A. Navarro-Giné
Keyword(s):  
Pulmonary Tuberculosis ◽  
Treatment Duration ◽  
Cox Regression ◽  
Rank Test ◽  
Poor Survival ◽  
Tuberculosis Patients ◽  
Log Rank Test ◽  
Kaplan Meier ◽  
Complete Treatment

Objective. To analyse survival in patients with pulmonary tuberculosis (PTB) and factors associated with such survival.Design. Study of a cohort of patients aged over 14 years diagnosed with PTB from January 1, 1998 to July 31, 2005. During 2004–2006 a home visit was made to each patient and, during 2008-2009, they were visited again. During these visits a follow-up interview was administered; when the patient had died, a verbal autopsy was conducted with family members. Statistical analysis consisted of survival tests, Kaplan-Meier log-rank test and Cox regression.Results. Of 305 studied patients, 68 had died due to PTB by the time of the first evaluation, 237 were followed-up for a second evaluation, and 10 of them had died of PTB. According to the Cox regression, age (over 45 years) and treatment duration (under six months) were associated with a poorer survival. When treatment duration was excluded, the association between poorer survival with age persisted, whereas with having been treated via DOTS strategy, was barely significant.Conclusions. In the studied area it is necessary that patients receive a complete treatment scheme, and to give priority to patients aged over 45 years.

Colorectal Liver Metastases - Does the Number of Lesions Determine the Sensibility of Resection?

Swiss Surgery ◽  
2000 ◽  
Vol 6 (1) ◽  
pp. 6-10
Author(s):  
Knoefel ◽  
Brunken ◽  
Neumann ◽  
Gundlach ◽  
Rogiers ◽  
...  
Keyword(s):  
Liver Metastases ◽  
Colorectal Liver Metastases ◽  
Rank Test ◽  
Log Rank Test ◽  
Kaplan Meier ◽  
Chirurgische Entfernung

Die komplette chirurgische Entfernung von Lebermetastasen bietet Patienten nach kolorektalem Karzinom die einzige kurative Chance. Es gibt jedoch eine, anscheinend unbegrenzte, Anzahl an Parametern, die die Prognose dieser Patienten bestimmen und damit den Sinn dieser Therapie vorhersagen können. Zu den am häufigsten diskutierten und am einfachsten zu bestimmenden Parametern gehört die Anzahl der Metastasen. Ziel dieser Studie war es daher die Wertigkeit dieses Parameters in der Literatur zu reflektieren und unsere eigenen Patientendaten zu evaluieren. Insgesamt konnte von 302 Patienten ein komplettes Follow-up erhoben werden. Die gebildeten Patientengruppen wurden mit Hilfe einer Kaplan Meier Analyse und konsekutivem log rank Test untersucht. Die Literatur wurde bis Dezember 1998 revidiert. Die Anzahl der Metastasen bestätigte sich als ein prognostisches Kriterium. Lagen drei oder mehr Metastasen vor, so war nicht nur die Wahrscheinlichkeit einer R0 Resektion deutlich geringer (17.8% versus 67.2%) sondern auch das Überleben der Patienten nach einer R0 Resektion tendenziell unwahrscheinlicher. Das 5-Jahres Überleben betrug bei > 2 Metastasen 9% bei > 2 Metastasen 36%. Das 10-Jahres Überleben beträgt bislang bei > 2 Metastasen 0% bei > 2 Metastasen 18% (p < 0.07). Die Anzahl der Metastasen spielt in der Prognose der Patienten mit kolorektalen Lebermetastasen eine Rolle. Selbst bei mehr als vier Metastasen ist jedoch gelegentlich eine R0 Resektion möglich. In diesen Fällen kann der Patient auch langfristig von einer Operation profitieren. Das wichtigere Kriterium einer onkologisch sinnvollen Resektabilität ist die Frage ob technisch und funktionell eine R0 Resektion durchführbar ist. Ist das der Fall, so sollte auch einem Patienten mit mehreren Metastasen die einzige kurative Chance einer Resektion nicht vorenthalten bleiben.

Survival Outcomes for Induction vs Adjuvant Chemotherapy in Squamous Cell Carcinoma of the Maxillary Sinus

2018 ◽  
Vol 160 (4) ◽  
pp. 658-663 ◽  
Author(s):  
Phoebe Kuo ◽  
Sina J. Torabi ◽  
Dennis Kraus ◽  
Benjamin L. Judson
Keyword(s):  
Overall Survival ◽  
Adjuvant Chemotherapy ◽  
Maxillary Sinus ◽  
Induction Chemotherapy ◽  
Squamous Cell ◽  
Cox Regression ◽  
Rank Test ◽  
Controlled Clinical Trial ◽  
Log Rank Test ◽  
Kaplan Meier

Objective In advanced maxillary sinus cancers treated with surgery and radiotherapy, poor local control rates and the potential for organ preservation have prompted interest in the use of systemic therapy. Our objective was to present outcomes for induction compared to adjuvant chemotherapy in the maxillary sinus. Study Design Secondary database analysis. Setting National Cancer Database (NCDB). Subjects and Methods In total, 218 cases of squamous cell maxillary sinus cancer treated with surgery, radiation, and chemotherapy between 2004 and 2012 were identified from the NCDB and stratified into induction chemotherapy and adjuvant chemotherapy cohorts. Univariate Kaplan-Meier analyses were compared by log-rank test, and multivariate Cox regression was performed to evaluate overall survival when adjusting for other prognostic factors. Propensity score matching was also used for further comparison. Results Twenty-three patients received induction chemotherapy (10.6%) and 195 adjuvant chemotherapy (89.4%). The log-rank test comparing induction to adjuvant chemotherapy was not significant ( P = .076). In multivariate Cox regression when adjusting for age, sex, race, comorbidity, grade, insurance, and T/N stage, there was a significant mortality hazard ratio of 2.305 for adjuvant relative to induction chemotherapy (confidence interval, 1.076-4.937; P = .032). Conclusion Induction chemotherapy was associated with improved overall survival in comparison to adjuvant chemotherapy in a relatively small cohort of patients (in whom treatment choice cannot be characterized), suggesting that this question warrants further investigation in a controlled clinical trial before any recommendations are made.

scholarly journals Lymphopenia Is Associated with Gross Target Volumes and Fractions in Hepatocellular Carcinoma Patients Treated with External Beam Radiation Therapy and Also Indicates Worse Overall Survival

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Hai-Ge Zhang ◽  
Ping Yang ◽  
Tao Jiang ◽  
Jian-Ying Zhang ◽  
Xue-Juan Jin ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Overall Survival ◽  
Cox Regression ◽  
External Beam Radiation ◽  
Rank Test ◽  
Beam Radiation ◽  
Kaplan Meier ◽  
Target Volumes ◽  
The Relationship

Purpose. To investigate whether lymphocyte nadir induced by radiation is associated with survival and explore its underlying risk factors in patients with hepatocellular carcinoma (HCC). Methods. Total lymphocyte counts were collected from 184 HCC patients treated by radiotherapy (RT) with complete follow-up. Associations between gross tumor volumes (GTVs) and radiation-associated parameters with lymphocyte nadir were evaluated by Pearson/Spearman correlation analysis and multiple linear regression. Kaplan–Meier analysis, log-rank test, as well as univariate and multivariate Cox regression were performed to assess the relationship between lymphocyte nadir and overall survival (OS). Results. GTVs and fractions were negatively related with lymphocyte nadir (p<0.001 and p=0.001, respectively). Lymphocyte nadir and Barcelona Clinic Liver Cancer (BCLC) stage were independent prognostic factors predicting OS of HCC patients (all p<0.001). Patients in the GTV ≤55.0 cc and fractions ≤16 groups were stratified by lymphocyte nadir, and the group with the higher lymphocyte counts (LCs) showed longer survival than the group with lower LCs (p<0.001 and p=0.006, respectively). Patient distribution significantly differed among the RT fraction groups according to BCLC stage (p<0.001). However, stratification of patients in the same BCLC stage by RT fractionation showed that the stereotactic body RT (SBRT) group achieved the best survival. Furthermore, there were significant differences in lymphocyte nadir among patients in the SBRT group. Conclusions. A lower lymphocyte nadir during RT was associated with worse survival among HCC patients. Smaller GTVs and fractions reduced the risk of lymphopenia.

scholarly journals A Proposal of a Personalized Surveillance Strategy for Gastric Cancer: A Retrospective Analysis of 9191 Patients

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Si-wei Pan ◽  
Peng-liang Wang ◽  
Han-wei Huang ◽  
Lei Luo ◽  
Xin Wang ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Rank Test ◽  
Surveillance Strategy ◽  
Risk Of Death ◽  
Kaplan Meier ◽  
Advanced Stages ◽  
Personalized Cancer

Background. In gastric cancer, various surveillance strategies are suggested in international guidelines. The current study is intended to evaluate the current strategies and provide more personalized proposals for personalized cancer medicine. Materials and Methods. In the aggregate, 9191 patients with gastric cancer after gastrectomy from 1998 to 2009 were selected from the Surveillance, Epidemiology, and End Results database. Disease-specific survival was analyzed by Kaplan-Meier method and the log-rank test. Cox proportional hazards regression analyses were used to confirm the independent prognostic factors. As well, hazard ratio (HR) curves were used to compare the risk of death over time. Conditional survival (CS) was applied to dynamically assess the prognosis after each follow-up. Results. Comparisons from HR curves on different stages showed that earlier stages had distinctly lower HR than advanced stages. The curve of stage IIA was flat and more likely the same as that of stage I while that of stage IIB is like that of stage III with an obvious peak. After estimating CS at intervals of three months, six months, and 12 months in different periods, stages I and IIA had high levels of CS all along, while there were visible differences among CS levels of stages IIB and III. Conclusions. The frequency of follow-up for early stages, like stages I and IIA, could be every six months or longer in the first three years and annually thereafter. And those with unfavorable conditions, such as stages IIB and III, could be followed up much more frequently and sufficiently than usual.

Effects of electrical stimulation in the treatment of osteonecrosis of the femoral head

2017 ◽  
Vol 28 (4) ◽  
pp. 434-441
Author(s):  
Salvador Fornell ◽  
Juan Ribera ◽  
Mario Mella ◽  
Andrés Carranza ◽  
David Serrano-Toledano ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Retrospective Study ◽  
Femoral Head ◽  
Core Decompression ◽  
Rank Test ◽  
Time To Recurrence ◽  
Log Rank Test ◽  
Kaplan Meier

Introduction: The aim of this study was to examine whether the use of an internal electrostimulator could improve the results obtained with core decompression alone in the treatment of osteonecrosis of the femoral head. Methods: We performed a retrospective study of 41 patients (55 hips) treated for osteonecrosis of the femoral head between 2005 and 2014. Mean follow-up time was 56 (12-108) months. We recorded 3 parameters: time to recurrence of pain, time to conversion to arthroplasty and time to radiographic failure. Survival was estimated using the Kaplan-Meier method. The equality of the survival distributions was determined by the Log rank test. Results: Implanted electrostimulator was a factor that increased the survival of hips in a pre-op Steinberg stage of II or below, while it remained unchanged if the stage was III or higher. Conclusions: The addition of an internal electrostimulator provides increased survival compared to core decompression alone at stages below III.

Novel Agents Overcome the Adverse Prognosis Imparted by Compromised Renal Function in Patients with Multiple Myeloma

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 2726-2726 ◽  
Author(s):  
Mehul Patel ◽  
Taimur Sher ◽  
Sikander Ailawadhi ◽  
Terry Mashtare ◽  
Wei Tan ◽  
...  
Keyword(s):  
Renal Function ◽  
Renal Impairment ◽  
Serum Creatinine ◽  
Median Survival ◽  
Impaired Renal Function ◽  
Pegylated Liposomal Doxorubicin ◽  
Novel Agents ◽  
Rank Test ◽  
Log Rank Test ◽  
Kaplan Meier

Abstract INTRODUCTION: Impaired renal function in patients with multiple myeloma (MM) is associated with adverse clinical outcome. Historically, the renal status is reported as serum creatinine (SCr) only. Introduction of novel agents (thalidomide, lenalidomide, bortezomib and pegylated liposomal doxorubicin) in MM therapeutics has improved clinical responses and overall survival. An important question that remains largely unanswered is if these agents deliver equal benefit to patients with impaired renal function. Thus we investigate the overall benefit of novel agents in MM patients with renal impairment. METHODS: All MM patients treated between January 2000 and December 2007 at Roswell Park Cancer Institute (RPCI) where included in this analysis. Extent of disease was assessed based on the Durie-Salmon staging system. We determined glomerular filtration rate (GFR) to asses renal function more accurately. GFR was calculated utilizing the Modification of Diet in Renal Disease (MDRD) equation. Patient cohorts were defined based on severity of renal impairment per the National Kidney Foundation-Kidney Disease Outcomes Quality Initiative (NKD-KDOQI) guidelines based on the GFR value into normal &gt;90, mild 60–89, moderate 30–59, severe 15–29 and kidney failure &lt;15 ml/min/1.73m^2. Because there were only few patients in the last two groups (GFR of 15–29 =11 and GFR &lt;15 =13), they were combined into a single cohort of severe renal impairment (GFR &lt;30=24). We also defined patient cohorts based on a previously reported classification in MM wherein patients were divided based on severity of renal impairment into normal &gt;80, mild 50–80, moderate 30–49 and severe &lt;30 ml/min/1.73m^2. Survival curves and median survival were calculated by Kaplan-Meier method. Survival differences were calculated using a log-rank test. A 0.05 nominal significance level was used in all statistical testing. RESULTS: A total of 175 patients (M=88, F=87) with a median age 60 years (range 34–88) were evaluated. Majority of patients had stage III disease (64%), 57.1% had IgG myeloma and lytic bone disease present in 67.4% of the patients. Median values for SCr, serum calcium, blood urea nitrogen, serum albumin and hemoglobin were 1.1mg/dl (range-0.5–10.3), 9.5 mg/dl (range-7.5- 7.2), 18 mg/dl (range-5–107), 4.0 g/dl (range-2.2–5.5) and 11.5 g/dl (range-6.8–17.1) respectively. SCr &gt;2 mg/dl was seen in only 16% patients and 41.1% patients had GFR in the range of 60–89 ml/min/1.73m^2. Patients received an average of 2 treatments. Use of at least one of the novel agent was seen in 86.3% patients (Immunomodulatory drugs =130, Bortezomib = 97, Pegylated liposomal doxorubicin =65). Median survival for patients with SCr &lt;2.0 and SCr&gt;2.0 was 67.4 months (45.4 – 92.7 months) and 38.4 months (15.3 months – not reached) respectively. Median survival for patients with normal GFR and mild, moderate and severe renal impairment based on the NKD-KDOQI guidelines was 76.1 months (37.5 months – not reached), 55.32 months (34.8 months – not reached), 67.4 months (45.4 months – not reached) and 24.9 months (15.3 months – not reached) respectively. Median survival for patient cohorts defined based on a previously reported classification in MM was similar to that seen with the NKD-KDOQI classification. We noted no significant survival advantage of normal renal function over renally impaired patients (Figure 1 & 2) despite evaluations based either by using the traditional approach of SCr (p=0.15; log rank test) or by more sensitive renal function assessment by GFR (p=0.21; log rank test). CONCLUSIONS: We conclude that in MM patients the previously reported and commonly perceived adverse prognosis imparted by impaired renal function can no longer be validated and that routine incorporation of novel agents has overcome this adverse prognosis. These findings are consistent with the impact of novel agents reported in context with MM with aggressive molecular profiles. Figure 1: Kaplan-Meier curve for survival by serum creatinine (SCr) Figure 1:. Kaplan-Meier curve for survival by serum creatinine (SCr)

The role of serum carcinoembryonic antigen in predicting objective responses to chemotherapy and overall survival in patients with non-small cell lung cancer.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e18084-e18084
Author(s):  
Hongbing Liu
Keyword(s):  
Protective Factor ◽  
Cox Regression ◽  
Rank Test ◽  
Small Cell Lung ◽  
Baseline Serum ◽  
Log Rank Test ◽  
Kaplan Meier ◽  
Serum Cea ◽  
Nsclc Patients

e18084 Background: Previous studies indicated the carcinoembryonic antigen (CEA) could predict the therapeutic objective response (OR) and overall survival (OS) of patients with cancers, including non-small cell lung cancer (NSCLC). However, the role it could play in evaluating therapeutic responses and OS in patients with NSCLC requires further elucidation. Herein, we investigated the potential role of CEA in predicting OR and OS in patients with NSCLC. Methods: 689 patients with NSCLC were enrolled between January 2000 and August 2011. The correlations between the CEA levels and OR or OS were examined via statistical analyses including the chi-squared test, logistical regression, paired-samples t-test, receiver operator characteristic curve, Kaplan-Meier survival analysis, log-rank test and Cox regression model. Results: The calculated cut-off for predicting an OR to chemotherapy in patients with NSCLC was a reduction of 5.28% in serum CEA. This value demonstrated a sensitivity of 61.3% and a specificity of 62.4%. Serum CEA levels significantly decreased after two cycles of chemotherapy in NSCLC patients (t = 2.196, P = 0.031). The Kaplan-Meier survival analysis indicated no significant correlation between baseline CEA and OS (log rank test =0.079). However, according to the Cox regression analysis the number of distant metastatic organs (=1 and ≥2) was the independent risk factor of the OS (P = 0.026; P =0.003), and the cycle numbers of chemotherapy was the protective factor for OS in patients with NSCLC (P=0.011).More importantly, baseline serum CEA was significantly associated with lung adenocarcinoma and adenosquamous subtypes (P = 0.014; P = 0.017, respectively). Conclusions: Our study shows that baseline serum CEA was significantly associated with lung adenocarcinoma and adenosquamous subtypes. While the baseline level of serum CEA was not a prognostic factor, the post-treatment reduction of serum CEA level can predict the OR in patients with NSCLC,. The number of chemotherapy cycles was the independent protective factor, while the numbers of distant metastatic organs was the independent risk factor for NSCLC patients’ OS.

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