[Effect of an oral nutritional supplementation on nutritional status and quality of life in patients with colorectal cancer and postoperative adjuvant chemotherapy: A multi-center prospective randomized control trial].

To evaluate the effect of oral nutritional supplementation (ONS) on the nutritional status and quality of life in patients with colorectal cancer and postoperative adjuvant chemotherapy. This study was registered in the Chinese Clinical Trial Registry (ChiCTR-TRC-13003798). A multi-center randomized controlled trial was conducted. Colorectal cancer patients who underwent radical surgery and postoperative adjuvant chemotherapy, and had nutritional risk (nutrition risk screening 2002 score ≥3) when discharge from hospital in six hospitals (Beijing Hospital, Peking University Third Hospital, Guangzhou Nanfang Hospital, Shanghai Xinhua Hospital, Shanghai Ruijin Hospital, and Shanghai The Sixth People's Hospital) from June 2013 to August 2015 were prospectively enrolled. These patients were randomly divided into the ONS group and control group. Patients in the ONS group received dietary guidance and oral nutritional supplements (2092 kJ/day, whole protein enteral nutrition) for 90 days after discharge from hospital, while patients in the control group only received dietary guidance. Anthropometric measurements (body weight, body mass index [BMI], upper arm circumference, gripping power of the dominant hand, triceps skin fold), nutrition-related laboratory tests (hemoglobin, albumin, prealbumin, total cholesterol, triglyceride), gastrointestinal function scores and quality of life (evaluated by EuroQol five dimensions questionnaire) were collected and compared at baseline (at discharge), and at 30-day, 60-day and 90-day after discharge. A total of 90 patients were included into this multi-center study, of whom 5 patients dropped out, 43 patients were assigned to the ONS group and 42 patients to the control group. Compared with baseline, the body weight of patients in the ONS group increased by (1.523±0.525) kg at 60-day and (1.967±0.661) kg at 90-day, which were significantly higher than those of patients in the control group [60-day: (-0.325±0.518) kg, =0.015; 90-day: (-0.224±0.705) kg, =0.027, respectively]. A similar pattern was observed for BMI, the ONS group increased by (0.552±0.203) kg/m(2) at 60-day and (0.765±0.205) kg/m(2) at 90-day, which were significantly higher than those of patients in control group [60-day: (-0.067±0.202) kg/m(2), =0.034; 90-day: (0.022±0.210) kg/m(2), =0.013]. No significant differences of other anthropometric measurements and nutrition-related laboratory tests were found between the two groups (all >0.05). Furthermore, there were no significant differences of improvement in gastrointestinal function and quality of life between two groups (all >0.05). Oral nutritional supplements can improve the body weight and BMI of colorectal cancer patients with nutritional risk receiving postoperative adjuvant chemotherapy, though it does not improve the quality of life.