Polymeric diet alone versus corticosteroids in the treatment of active pediatric Crohn's disease: a randomized controlled open-label trial. A placebo-controlled, double-blind, randomized trial of cyclosporine therapy in active chronic Crohn's disease. Budesonide prolongs time to relapse in ileal and ileocaecal Crohn's disease. A placebo controlled one year study. Steroid-sparing properties of sargramostim in patients with corticosteroid-dependent Crohn's disease: a randomised, double-blind, placebo-controlled, phase 2 study. Antimycobacterial therapy in Crohn's disease: results of a controlled, double-blind trial with a multiple antibiotic regimen. European trial of cyclosporine in chronic active Crohn's disease: a 12-month study. The European Study Group. A controlled double blind multicenter study of the effectiveness of 5-aminosalicylic acid in patients with Crohn's disease in remission. National Cooperative Crohn's Disease Study: results of drug treatment. Bone mineral density in relation to efficacy and side effects of budesonide and prednisolone in Crohn's disease.
Nutritional therapy has been reported to have an almost equivalent efficacy of corticosteroids in achieving clinical remission in active Crohn's disease (CD). However, the effects of both treatments on intestinal mucosal inflammation rarely are reported. In a randomized controlled trial in children with active CD we compared the efficacy of nutritional therapy alone or corticosteroids on clinical variables and intestinal mucosal healing.
                In a prospective, 10-week open-label trial, children with active, naive CD were randomized to orally polymeric formula alone or oral corticosteroids. The clinical activity index and nutritional and activity serum variables were evaluated at week 0 and then every 2 weeks; intestinal mucosal inflammation was assessed through endoscopy and histology at weeks 0 and 10. Primary efficacy outcomes were clinical remission and mucosal healing.
                Of the 37 children randomized, 19 received polymeric formula and 18 received corticosteroids. At week 10, on an intention-to-treat basis, the proportion of patients achieving clinical remission was comparable between the 2 groups (polymeric formula: 15/19 [79%; 95% confidence interval (CI), 56%-92%]; corticosteroid group: 12/18 [67%; 95% CI, 44%-84%]; P = .4; not significant). On the contrary, the proportion of children showing mucosa healing was significantly higher in the polymeric (14/19; 74%; 95% CI, 51%-89%) than the corticosteroid group (6/18 [33%; 95% CI, 16%-57%]; P < .05). At week 10 both endoscopic and histologic scores significantly decreased only in the polymeric group (P < .001).
                In children with active and recently diagnosed CD, a short course of polymeric diet is more effective than corticosteroids in inducing healing of gut inflammatory lesions. We randomly assigned 71 patients with active chronic Crohn's disease who were resistant to or intolerant of corticosteroids to treatment with oral cyclosporine (5 to 7.5 mg per kilogram of body weight per day) or placebo for three months. Disease activity was assessed on a clinical grading scale without knowledge of the treatment given. At the end of the treatment period, 22 of the 37 cyclosporine-treated patients (59 percent) had improvement, as compared with 11 of the 34 placebo-treated patients (32 percent) (P = 0.032). During cyclosporine treatment, there was significant improvement in plasma orosomucoid levels (P = 0.0025) and the Crohn's Disease Activity Index (P = 0.00012). The effect of treatment became evident after two weeks. In the subsequent three months, during which the patients were gradually withdrawn from treatment, the improvement continued in 14 of the 37 patients (38 percent) in the cyclosporine group and in 5 of the 34 (15 percent) in the placebo group (P = 0.034). No serious adverse events were observed. We conclude that cyclosporine has a beneficial therapeutic effect in patients with active chronic Crohn's disease and resistance to or intolerance of corticosteroids. To evaluate the efficacy and safety of the topical corticosteroid budesonide, given in an oral controlled release formulation for maintenance of remission in patients with ileal and ileocaecal Crohn's disease (CD).
                Out of 176 patients with active CD who had achieved remission (CD activity index score < or = 150) after 10 weeks' treatment with either budesonide or prednisolone, 90 were randomised to continue with once daily treatment of 6 mg budesonide, or 3 mg budesonide or placebo for up to 12 months in a double blind, multicentre trial. Time to symptomatic relapse was calculated using Kaplan-Meier estimates. Morning plasma cortisol was measured at clinic visits and a corticotropin stimulation test was performed after three months of treatment.
                Thirty two patients were allocated to the 6 mg budesonide group, 31 to the 3 mg group, and 27 to the placebo group. After three months, 19 per cent of the patients in the 6 mg group had relapsed, compared with 45 per cent in the 3 mg group and 44 per cent in the placebo group (p = 0.047). The corresponding results after 12 months was 59 per cent in the 6 mg budesonide group, 74 per cent in the 3 mg group, and 63 per cent in the placebo group (p = 0.44). The median time to relapse or discontinuation was 258 days in the 6 mg group, 139 days in the 3 mg group, and 92 days in the placebo group (p = 0.021). Mean morning plasma cortisol values increased from entry in all three groups with no statistically significant differences at 12 months. All 13 patients remaining in the placebo group after three months had a normal corticotropin stimulation response, compared with 18 of 23 patients in the 6 mg, and 19 of 21 in the 3 mg budesonide groups (p = 0.14). Acne and moon face were slightly more common in the budesonide groups.
                6 mg budesonide once daily is significantly more efficacious than placebo in prolonging time to relapse in CD, and causes only minor systemic side effects. Although treatment with corticosteroids induces remission in Crohn's disease, prolonged exposure to corticosteroids is undesirable. This randomised clinical trial evaluated the efficacy of recombinant human granulocyte-macrophage colony-stimulating factor (sargramostim), an activator of innate immunity, in corticosteroid-dependent patients with Crohn's disease.
                Patients were randomised in a 2:1 ratio, to sargramostim 6 microg/kg subcutaneously once daily or placebo for up to 22 weeks. The study consisted of (1) an adjunctive phase (weeks 1-4) in which patients received study drug plus corticosteroid therapy; (2) a forced corticosteroid tapering phase (weeks 4-14); and (3) an observation phase (4 weeks) in which patients received study drug plus prednisone < or =7.5 mg. The primary endpoint was corticosteroid-free remission (Crohn's Disease Activity Index (CDAI) < or =150) 4 weeks after corticosteroid elimination. Secondary endpoints were corticosteroid-free response (CDAI decreased by > or =100) and induction of remission in patients who reduced the dose of corticosteroid to 2.5-7.5 mg.
                Eighty-seven patients were randomised to sargramostim and 42 to placebo. Significantly more sargramostim-treated patients than placebo patients achieved corticosteroid-free remission (18.6% vs 4.9%; p = 0.03). Similar differences were seen for corticosteroid-free response and in patients who tapered corticosteroids to 2.5-7.5 mg/day. Sargramostim treatment was also associated with significant improvements in health-related quality of life. Patients who received sargramostim were more likely to experience musculoskeletal pain, injection site reactions and dyspnoea.
                Sargramostim was more effective than placebo for inducing corticosteroid-free remission in patients with Crohn's disease with corticosteroid dependence. Sargramostim may provide significant benefit in this population if these findings are confirmed. Several recent reports have suggested an association of atypical mycobacteria with Crohn's disease.
                The goal of this double-blind, placebo-controlled trial was to determine the efficacy of treatment with antimycobacterial drugs in maintaining clinical remission and in reducing active inflammatory lesions.
                Forty patients (15 male) with refractory, steroid-dependent Crohn's disease were randomized to receive 2 months of tapering steroids plus either a 9-month regimen of ethambutol, clofazimine, dapsone and 1-day dose only of rifampicin (n = 22), or identical placebo.
                Three patients (two on active drug) were unable to discontinue steroids, and one patient on active drug was withdrawn for side effects during the first 2 months. Three of the remaining 19 patients on active drug relapsed during the study period, compared with 11 of 17 on placebo (log likelihood ratio = 4.6; p = 0.03). Another patient was withdrawn in remission at 5 months for anemia related to dapsone. Nine patients whose disease relapsed or persisted on placebo were crossed over to active drug; five achieved sustained remission, two failed, and two were withdrawn for side effects. Substantial endoscopic or radiologic healing did not occur.
                This study suggests that the treatment regimen with rifampicin, ethambutol, clofazimine, and dapsone is effective in relief of symptoms and maintenance of remission in some Crohn's disease patients. The role of cyclosporine in Crohn's disease is controversial. This study aimed to delineate the long-term effect of cyclosporine in chronic active Crohn's disease.
                One hundred eighty-two patients from 33 European centers were included. The patient cohort was stratified at entry into a stratum with low Crohn's Disease Activity Index (CDAI) ( < 200) and high CDAI ( > 200). The low-activity group continued to receive the pretrial steroid dose for 2 months, and the high-activity group received 1 mg.kg-1.day-1 prednisone initially. During months 3 and 4, the dose of steroids was reduced stepwise to 5 mg/day in all patients. Placebo and cyclosporine (5 mg.kg-1.day-1) were administered throughout the 12-month study period. The main parameter of efficacy was the CDAI, and the main end point was the number of patients in remission at month 12.
                During cyclosporine therapy, 35% (95% confidence interval [95% Cl], 25%-46%) of the patients achieved a full remission (CDAI, < 150) after 4 months compared with 27% (95% Cl, 18%-38%) in the placebo group (P > 0.05). At month 12, only 20% (95% Cl, 12%-31%) vs. 20% (95% Cl, 12%-31%) of the patients had maintained a continuous remission. No major differences between treatment groups were found within each of the two strata.
                The long-term treatment of chronic active Crohn's disease with cyclosporine plus low-dose steroids does not offer an advantage compared with low-dose steroids alone. We evaluated the efficacy of an oral formulation of 5-amino-salicylic acid in lowering the relapse rate after remission of Crohn's disease. Included were 59 patients who had proven Crohn's disease of at least 1 year's duration, and who had been in continuous remission for at least 6 months, while taking only 5-aminosalicylic acid or no therapy at all. Remission was defined as a Harvey Bradshaw index score (Softley-Clamp modification) of < 4. Patients were given coded mesalzaine 250 mg or placebo tablets (2 x 2 day). They were seen at 0, 1, and 2 months, and then every 2 months until the end of the study. Trial endpoints were 1 year of follow-up, or clinical relapse results. After randomization, 31 patients were included in the placebo arm, and 28 in the treatment arm. There were no significant differences between the two groups at entry. Ten patients were withdrawn from the trial because of noncompliance, loss of follow-up, or headache. There were more clinical relapses in the placebo arm (15 patients, 55%) than in the treatment arm (6 patients, 27%) (p < 0.05). Mesalazine had a significant advantage over placebo (p < 0.05) only in the subgroups of patients with ileal Crohn's disease and in those older than 30 years. We conclude that mesalazine has a moderate but significant benefit in preventing relapse in Crohn's disease in remission; this occurred only in patients with small-bowel involvement or in those older than 30 years. The response of active and quiescent Crohn's disease to prednisone, sulfasalazine, or azathioprine has been studied in 569 patients in a placebo-controlled, randomized, multicenter cooperative trial. The response of active symptomatic disease to prednisone or sulfasalazine was significantly better than to placebo. Response to azathioprine was better than to placebo, but the difference did not reach conventional levels of statistical significance. Patients with colonic involvement were especially responsive to sulfasalazine, and those with small bowel involvement were especially responsive to prednisone. Patients' drug therapy immediately before entry to the study significantly affected subsequent response. For patients with quiescent disease, none of the drugs was superior to placebo in prophylaxis against flare-up or recurrence. There is less than a 5% risk that a clinically significant prophylactic effect of any of the drug regimens was missed. Osteoporosis frequently occurs in Crohn's disease, often because of corticosteroids. Budesonide as controlled release capsules is a locally acting corticosteroid with low systemic bioavailability. We investigated its effects on bone compared with prednisolone.
                In 34 international centers, 272 patients with Crohn's disease involving ileum and/or colon ascendens were randomized to once daily treatment with budesonide or prednisolone for 2 years at doses adapted to disease activity. One hundred eighty-one corticosteroid-free patients had active disease (98 had never received corticosteroids, corticosteroid naive; 83 had received corticosteroids previously, corticosteroid exposed), and 90 had quiescent disease, receiving long-term low doses of corticosteroids, corticosteroid-dependent; in 1 patient, no efficacy data were obtained. Bone mineral density and fractures were assessed in a double-blinded fashion; disease activity, side effects, and quality of life were monitored.
                Neither the corticosteroid-free nor the corticosteroid-dependent patients treated with budesonide differed significantly in bone mineral density from those receiving prednisolone. However, corticosteroid-naive patients receiving budesonide had smaller reductions in bone mineral density than those on prednisolone (mean, -1.04% vs -3.84%; P = .0084). Treatment-emergent corticosteroid side effects were less frequent with budesonide. Efficacy was similar in both groups.
                Treatment with budesonide is associated with better preserved bone mass compared with prednisolone in only the corticosteroid-naive patients with active ileocecal Crohn's disease. In both the corticosteroid-free and corticosteroid-dependent groups, budesonide and prednisolone were equally effective for up to 2 years, but budesonide caused fewer corticosteroid side effects.
The use of conventional systemic corticosteroids in patients with clinically quiescent Crohn's disease does not appear to reduce the risk of relapse over a 24 month period of follow-up. An updated literature search performed in July 2008 did not identify any new trials.