Journal
JOURNAL OF CLINICAL GASTROENTEROLOGY
Volume 49, Issue 7, Pages 582-588Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MCG.0000000000000319
Keywords
ulcerative colitis; infliximab; low dose
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Goal:To evaluate the efficacy of low-dose (3.5 mg/kg) infliximab for induction and maintenance treatment in Chinese patients with ulcerative colitis.Background:Treatment with 4 to 5 mg/kg of infliximab also proved to be effective in treating moderate to severe ulcerative colitis. At present there is no relevant study on the effectiveness of infliximab doses lower than 4 mg/kg in patients with ulcerative colitis.Study:A prospective, randomized, double-blind, placebo-controlled, and single-centered study was designed. A total of 123 patients (from 17 provinces of China) with moderate to severe active ulcerative colitis despite treatment with concurrent drugs received placebo or low-dose (3.5 mg/kg) or standard-dose (5 mg/kg) infliximab intravenously at weeks 0, 2, and 6 and then every 8 weeks through week 22. Patients were followed up for 30 weeks.Results:Overall, 73% and 78% of patients who received low-dose (3.5 mg/kg) and standard-dose (5 mg/kg) infliximab, respectively, had clinical responses at week 8, as compared with 37% of patients who received placebo (P<0.01 for both comparisons with placebo). The number of patients who received low-dose (3.5 mg/kg) or standard-dose (5 mg/kg) infliximab with a clinical response at week 30 (63% and 66%, respectively) was more than the patients who received placebo (27%, P<0.01 for both comparisons).Conclusions:Chinese patients with moderate to severe active ulcerative colitis treated with low-dose (3.5 mg/kg) or standard-dose (5 mg/kg) infliximab at weeks 0, 2, and 6 and every 8 weeks thereafter were more likely to have a clinical response at weeks 8 and 30 than those who received placebo.
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