Background: To investigate the compliance to self-monitoring of blood glucose (SMBG) among patients with type 2 diabetes mellitus (T2DM) and its influential factors. Methods:The real-world SMBG use over 90 days among 415 T2DM patients were recorded by using a blood glucose monitoring platform (TDF-I, Tencent, China). Clinical features including age, sex, duration of diabetes, insulin treatment or not, and use of oral antidiabetic drugs were collected. Poor compliance was defined as the average frequency of weekly SMBG use over 90 days was below the criteria established by the physicians, and otherwise the patients were regarded as with good compliance. Factors affecting the SMBG compliance were analyzed by using independent sample t-test, Mann-Whitney U test, and multivariate logistic regression analysis.Results: Only 57.6% of patients in the study cohort had good compliance to SMBG. Multivariate logistic regression models showed that only the duration of T2DM and the use of oral antidiabetic agents were independently associated with SMBG compliance; more specifically, patients with longer course of disease had poorer SMBG compliance, and those had used oral antidiabetic agents had poorer SMBG compliance.Conclusions: SMBG compliance in T2DM patients needs to be further improved. For patients with a longer course of disease and/or under oral antidiabetic medication, interventions such as patient education should be adopted to increase the SMBG compliance.Keywords: Type 2 diabetes mellitus (T2DM); self-monitoring of blood glucose (SMBG); compliance; crosssectional study; real world study 87-91% of all diagnosed cases of diabetes. Diabetes kills over 5 million people every year, and most of them died of diabetic complications (3). Some studies including the UK Prospective Diabetes Study (UKPDS) and the Diabetes Control and Complications Trial (DCCT) have confirmed that good blood sugar control could effectively reduce the risk of diabetic complications (4,5). Thus, blood glucose monitoring has become essential for evaluating diabetic patients, developing a reasonable hypoglycemic regimen, reflecting the effectiveness of hypoglycemic treatment, and guiding treatment adjustment. Self-monitoring of blood glucose (SMBG) has been recommended for all diabetic patients in guidelines released by IDF, American Diabetes Association (ADA), and many other organizations (6,7).Studies have revealed that SMBG can significantly improve metabolic control in T2DM patients and may reduce diabetes-related endpoint events (6,8). However, the SMBG implementation is far from satisfactory worldwide. For instance, the International Diabetes Management Practices Study (IDMPS) found that the rate of SMBG use was only 29.7%, 35.7%, and 38.5% among T2DM patients in Asia, Eastern Europe, and Latin America (9). Patients' SMBG compliance is an important factor in determining the performance of SMBG. Thus, it is particularly important to identify the patients' SMBG compliance and its influential factors. Although a number of previous studies have...

4033 Background: Patients with esophageal cancer undergoing CCRT are at high risk of malnutrition. The aim of this study was to investigate the influence of enteral nutrition on nutritional status, treatment tolerance and outcomes in esophageal cancer patients undergoing CCRT. Methods: Patients with inoperable esophageal cancer were randomly assigned (2:1 ratio) to the enteral nutrition group (EN group) or the control group. Patients in the EN group were supported with individual enteral nutrition intervention according to the nutritional status assessment results. The control group was treated with conventional diet guidance. The primary endpoint was the change in body weight from baseline after treatment. Secondary endpoints were nutrition related blood parameter changes, treatment tolerance and outcomes. Results: Between Mar. 2015 and Jan. 2017, 158 patients from ten hospitals were randomised into the EN group (n = 106) and the control group (n = 52). Following CCRT, patients in EN group lost only 0.72±3.27 kg of body weight compared with 2.10±2.89 kg in the control group (P < 0.001). Participants who received EN had less decline than controls in serum albumin (2.66±5.05 g/L and 4.75±4.94 g/L, P < 0.001) and hemoglobin (10.29±15.78 g/L and 18.48±14.66 g/L, P < 0.001). Grade 3/4 leukopenia in the control group was significantly more frequent than the EN group (33.3% vs. 20.0 %, P = 0.011). Patients supported on EN experienced greater chemoradiotherapy completion rates (92.5% vs. 67.3%, P = 0.001) and lower infection rates (18.8% vs 31.7%, P = 0.021). There was significant difference in tumor response between two groups (EN group: 81.1%, control group: 67.3%, P = 0.004). The 1- and 2-year OS rates in the EN group were significantly greater (89.6% and 75.4%, respectively) compared with the control group (78.5% and 57.9%, respectively). Conclusions: Enteral nutrition may be advantageous in patients with esophageal cancer undergoing CCRT by improving nutritional status, treatment tolerance and outcomes. Clinical trial information: NCT 02399306.

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4073 Background: In China more than 90% of esophageal malignancies are of squamous cell carcinoma (SCC). We conducted this Chinese multicenter trial to determine the efficacy and safety of the addition of cetuximab with paclitaxel, cisplatin, and concurrent radiation for patients with esophageal SCC and to determine whether KRAS status predicts response. Methods: Patients with unresectable locally advanced cervical, upper or mid-esophageal SCC without distant metastasis were eligible for this open-label phase II trial. All patients received cetuximab (400 mg/m2 day 1 before chemoradiotherapy and 250 mg/m2 q1w × 7 weeks), paclitaxel (45 mg/m2 q1w × 7 weeks) and cisplatin (20 mg/m2 q1w × 7 weeks) with 59.4 Gy of radiation. The primary end point was response rate. Second end points included toxicity, overall survival (OS), progression-free survival (PFS), and KRAS mutation status. Results: Fifty-five patients were enrolled and evaluable to safety. Non-hematological adverse events were generally grade 1 or 2, and were most often rash (94.5%), mucositis (58.2%), fatigue (45.5%), nausea (41.8%) and hepatic dyfunction (40%). Hematologic adverse events included grade 3 neutropenia (32.7%) and grade 3 anemia (1.82%). Ten patients did not complete the protocol therapy (6 for chemotherapy dose delays, 1 for paciltaxel hypersensitivity, 1 by the treating physicians for unstated reasons, 1 for concurrent unrelated infection, and 1 for tracheo-esophageal fistula). The response rate was 97.7%. The 1-year OS and median OS was 87.3% and 16.8 months, the 1-year PFS and median PFS was 30.4% and 13.9 months, respectively. No mutations were detected at KRAS codons 12 or 13 in the 52 available specimens. Conclusions: Cetuximab can be safely administered with chemoradiation for Chinese patients with esophageal cancer and may improve the clinical response rate. KRAS mutations were too rare to be analyzed as a predictor of response.

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e15030 Background: This multicenter phase II trial investigated cetuximab add to concurrent chemoradiotherapy for Chinese patients with esophageal squamous cell carcinoma (ESCC). Methods: Patients with unresectable locally advanced cervical, thoracic upper or mid-ESCC were eligible for this phase II trial. All patients received cetuximab (400 mg/m2 day 1 before chemoradiotherapy and 250 mg/m2 q1w × 7 weeks), paclitaxel (45 mg/m2 q1w × 7 weeks) and cisplatin (20 mg/m2 q1w × 7 weeks) with 59.4 Gy of radiation (1.8Gy/33f). The primary end point was response rate. Second end points included toxicity, overall survival (OS), progression-free survival (PFS), and KRAS mutation status. Results: Forty-five previously untreated patients (36 men, 9 women; median age, 59 year; performance status 0 or 1) with ESCC were treated and evaluated for clinical and radiographic response. After therapy, 29 patients (65%) achieved a complete response, and 15 (33%) patients achieved a partial response, the response rate was 97.7%. Non-hematological adverse events were generally grade 1 or 2, and were most often rash (94.5%), mucositis (58.2%), fatigue (45.5%), nausea (41.8%) and hepatic dyfunction (40%). Hematologic adverse events included grade 3 neutropenia (32.7%) and grade 3 anemia (1.82%). The 1-year PFS and OS rates were 87.3% and 91.1%, 2-year OS were 83.02%, respectively. No mutations were detected at KRAS codons 12 or 13 in all specimens. Conclusions: Cetuximab can be safely administered with chemoradiation for Chinese patients with esophageal cancer and may improve the clinical response rate. KRAS mutations were too rare to be analyzed as a predictor of response. Clinical trial information: NCT00815308.

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