title: 5-Aminosalicylic acid enemas: effective agent in maintaining remission in left-sided ulcerative colitis.
abstract: The efficacy of 5-aminosalicylic acid enemas in maintaining remission in left-sided ulcerative colitis was studied. Twenty-five patients in remission for at least 2 mo were randomized to receive either 1-g 5-aminosalicylic acid or placebo enemas daily and were followed up for 1 yr. Eleven of 13 patients randomized to placebo relapsed after a mean of 16 wk. Nine of 12 patients randomized to 5-aminosalicylic acid remained in remission for 1 yr, 2 others in remission withdrew by request, and 1 relapsed at 10 wk. The difference between relapse rate on 1-g 5-aminosalicylic acid versus placebo was significant (p less than 0.005). Seven patients entered the blinded trial a second time. Three of 4 patients randomized to 5-aminosalicylic acid remained in remission and 1 relapsed. Three randomized to placebo relapsed at a mean of 14 wk. One-gram 5-aminosalicylic acid enemas are safe and effective in maintaining remission in patients with left-sided ulcerative colitis.
authors.affiliation: Division of Gastroenterology, University of Kansas Medical Center, Kansas City.
authors.forename: W L
authors.initials: WL
authors.lastname: Biddle
authors.forename: N J
authors.initials: NJ
authors.lastname: Greenberger
authors.forename: J T
authors.initials: JT
authors.lastname: Swan
authors.forename: M S
authors.initials: MS
authors.lastname: McPhee
authors.forename: P B
authors.initials: PB
authors.lastname: Miner
mesh_terms: D000636:Aminosalicylic Acids / Q000008:administration & dosage / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003093:Colitis, Ulcerative / Q000188:drug therapy*; D004311:Double-Blind Method; D004733:Enema; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D019804:Mesalamine; D011897:Random Allocation; D013997:Time Factors
chemical_list: D000636:Aminosalicylic Acids; D019804:Mesalamine