Abstract
An excessive postoperative inflammatory response is correlated with the development of pneumonia and an unfavourable prognosis in patients undergoing esophagectomy for esophageal cancer. We assessed the influence of OSK-0028, a synthetic human ghrelin on inflammatory response and energy metabolism, on the postoperative course of patients following radical esophagectomy. Esophageal cancer patients were randomly assigned to low-dose (LD; 0.25 μg/kg/h) or high-dose (HD; 0.5 μg/kg/h) intravenous OSK-0028 or placebo for 7 days after esophagectomy. The primary endpoint was serum interleukin-6 level on postoperative day (POD) 3. A total of 75 patients were enrolled (23 LD, 26 HD, 26 placebo). The median interleukin-6 levels on POD 3 were 40.95, 35.85, and 64.50 pg/ml in the placebo, LD, and HD groups, respectively, with no significant differences (p=0.78). Postoperative complications did not differ between groups. Bodyweight loss was significantly lower in patients receiving OSK-0028 than in those receiving placebo (-0.17% vs. 1.78%, p=0.043). Although OSK-0028 did not attenuate inflammatory response after esophagectomy, it prevented postoperative bodyweight loss.
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