Association between hemoglobin, calcium, and lactate dehydrogenase variability and mortality among metastatic renal cell carcinoma.

PURPOSE: There are no robust data on hemoglobin (Hb), lactate dehydrogenase (LDH), and calcium variability for overall survival (OS) in patients with metastatic renal cell carcinoma (mRCC) treated with vascular endothelial growth factor (VEGF)-targeted therapy. We aim to evaluate prognostic implications of Hb, LDH, and calcium variability and establish a novel risk stratification model in RCC patients receiving targeted therapies. METHODS: We retrospectively studied an unselected cohort of patients with mRCC, who were treated with tyrosine kinase inhibitors. We assessed LDH variability, Ca variability, and Hb variability with various methods using standard deviation and fluctuation across thresholds. Kaplan-Meier and log-rank analyses were employed on OS and multivariate Cox proportional hazard model analyzed clinical parameters for their prognostic relevance. RESULTS: A total of 59 patients intermediate-risk group according to the Memorial Sloan-Kettering Cancer Center with mRCC who had early progressed after first-line therapy with interferon-α were included in this retrospective single-center study conducted between February 2008 and December 2011. The mean Hb was 12.4 g/dl (min-max 9.1-15.2) throughout the study. Multivariable-adjusted Cox regression showed that patients in the consistently low-Hb group and patients in the low-amplitude and high-amplitude groups had a statistically significant increase in risk compared with patients who were consistently on target (HR 4.1; 95 % CI 1.3-12.9 and HR 2.9; 95 % CI 1.05-8.1 and HR 4.4; 95 % CI 1.7-11.1, respectively). On the other hand, the higher mean LDH (LDH more than 1 >upper limit of normal) was associated with OS. LDH variability and Ca variability were not associated with mortality. CONCLUSIONS: In patients with mRCC treated with VEGF-targeted therapy, Hb variability and mean LDH level might be associated with OS. This should be investigated prospectively.

Results of adjuvant FOLFOX regimens in stage III colorectal cancer patients: retrospective analysis of 667 patients.

OBJECTIVE: The aim of this study was to assess the use of 5-fluorouracil (5-FU), leucovorin and oxaliplatin (FOLFOX) regimens in clinical practice according to their efficacy and toxicity. METHODS: Patients who received oxaliplatin-containing regimens after curative resection for colorectal carcinoma from 10 different oncology centers between May 2004 and December 2009 were included in the study. All patients were treated with FOLFOX regimens. Patients with rectal carcinoma were also treated with chemoradiotherapy with 5-FU after 2 cycles of a FOLFOX regimen. RESULTS: The median age of the patients was 56 years (range 17-78). Of the total 667 patients, 326 were given FOLFOX-4, 232 were given modified FOLFOX-4 and 109 were given FOLFOX-6. The distribution according to disease stage was 33 patients with stage IIIA colorectal cancer, 382 patients with stage IIIB and 252 patients with stage IIIC. The most common adverse events were neutropenia (54%), nausea (36.9%), neuropathy (38.2%) and anemia (33.1%) for all grades. The median follow-up time was 23 months (range 1-79). Three-year disease-free survival and overall survival were 65 and 85.7%, respectively. CONCLUSION: The different oxaliplatin-containing 5-FU-based adjuvant chemotherapy regimens in patients with stage III colorectal cancer seemed to be at least equal in terms of efficacy regardless of the method of 5-FU administration or oxaliplatin dose.

Efficiency and side effects of sorafenib therapy for advanced hepatocellular carcinoma: a retrospective study by the anatolian society of medical oncology.

BACKGROUND: Inoperable and metastatic hepatocellular carcinoma (HCC) is associated with a poor prognosis and low chemotherapeutic efficiency. Sorafenib is an oral multi-kinase inhibitor exerting its effects via the RAF/ MEK/ERK pathway, vascular endothelial growth factor receptor (VEGFR) and platelet derived growth factor receptor beta (PDGFR-ß) tyrosine kinases. Randomized studies have shown a significant contribution of sorafenib to life expectancy and quality of life of cancer patients. The aim of the present study is to evaluate the efficacy and side effects of sorafenib therapy in Turkey. MATERIALS AND METHODS: Data for 103 patients (82 males, 21 females) receiving sorafenib therapy in 13 centers from February 2008 to December 2012 were evaluated. Median age was 61 years and median ECOG performance status was 1 (range: 0-2). 60 patients (58%) had hepatitis B, 15 patients (15%) had hepatitis C infection and 12 patients (12%) had a history of alcohol consumption. All of the patients had Child scores meeting the utilization permit of the drug in our country (Child A). RESULTS: A total of 571 cycles of sorafenib therapy were administered with a median of four per patient. Among the evaluable cases, there was partial response in 15 (15%), stable disease in 52 (50%), and progressive disease in 36 (35%). Median progression-free survival was 18 weeks and median overall survival was 48 weeks. The dose was reduced only in 6 patients and discontinued in 2 patients due to grade 3-4 toxicity, 18 patients (17%) suffering hand-foot syndrome, 7 (7%) diarrhea, and 2 (2%) vomiting. CONCLUSIONS: This retrospective study demonstrated better efficacy of sorafenib therapy in patients with advanced HCC compared to the literature while progression-free survival and overall survival findings were comparable. The side effect rates indicate that the drug was tolerated well. In conclusion, among the available treatment options, sorafenib is an efficient and tolerable agent in patients with inoperable or metastatic HCC.

Adjuvant chemoradiation for gastric cancer: multicentric study of the Anatolian Society of Medical Oncology.

BACKGROUND/AIMS: The aims of this study were to report the clinical outcomes of adjuvant chemo-radiotherapy after curative resection in 637 patients with gastric cancer. METHODOLOGY: The retrospective analysis included 637 patients with resectable gastric cancer and stage IB-IV (M0) from 8 medical centers between 2003 and 2010. The patients were treated with 5FU-leucovorin and radiotherapy according to Schema for INT-0116. RESULTS: Of the 637 patients, the median of overall survival (OS) was 43.7 months and relapse free survival (RFS) was 36.6 months. OS rates were 84%, 45%, 40% while RFS rates were 81%, 45% and 35% at 1, 3 and 5-years, respectively. Hematological and gastrointestinal toxicities (grade 1-4) were observed in 35% and 36.5% of patients, respectively. In univariate analysis, according to the Lauren classification, tumor grade, T stage, N stage, type of operation (total gastrectomy or subtotal) and surgery resection margin (R0 or R1) were found as prognostic factors on RFS and OS (p<0.05). In multivariate analysis, T stage, N stage and surgical margins were found as effective factors on OS. T stage, N stage and Lauren classification were factors affecting RFS. CONCLUSIONS: Adjuvant chemo-radiotherapy after curative resection of gastric cancer was feasible, with acceptable toxicities in the Turkish population.

The results of three different treatment modalities in patients with locally advanced nasopharyngeal carcinoma.

The aim of the study was to evaluate the toxicity and efficacy of 62 patients with locally advanced nasopharyngeal carcinoma (NPC) (stage III, IVA, IVB) treated by three different modalities. Cisplatin was given weekly 35 mg/m(2)/day or every 3 weeks 100 mg/m(2)/day during radiotherapy (RT) in all patients. Patients were classified into following three groups: The patients in the group 1 (n=23) were treated only with concurrent chemoradiotherapy (CCRT). In the group 2 (n=15), before the CCRT, neoadjuvant chemotherapy, consisting of intravenous cisplatin and docetaxel on day 1, every 3 weeks treatment cycles was administered. In the group 3 (n=24), adjuvant chemotherapy, consisting of cisplatin on day 1 and 5-fluorouracil on day 1 to 5 every 3 weeks was used after CCRT. Three arms were treated with the same RT technique and dose. There was no difference for age, sex, and stage among the groups. Radiotherapy was administered in planned dose for all patients. A total of 82% patients completed planned chemotherapy concurrent with RT. The treatment related adverse effects were mild or moderate in intensity. There was no statistical difference between the groups regarding the treatment responses. Complete response rate of RT was 73.9%, 86.7%, and 87.5%, respectively. Median progression free survival (PFS) and overall survival (OS) were 13, 12, 9 months and 22, 20, 15 months for groups 1, 2, 3, respectively. No difference was observed in median OS and PFS among three groups. In our study, the efficacy and toxicity of neoadjuvant and/or adjuvant chemotherapy with CCRT and CCRT alone were found similar.