Background-Clear strategies to optimise the use of corticosteroids in
ulcerative colitis are lacking, Aim-A meta-analysis was undertaken to
examine critically the role of rectal corticosteroids in the managemen
t of active distal ulcerative colitis. Methods-All reported randomised
controlled trials were retrieved by searching the Medline and EMBASE
databases and the bibliographies of relevant studies. Trials which met
inclusion criteria were assessed for scientific rigour. Data were ext
racted by two independent observers according to predetermined criteri
a. Results-Of 83 trials retrieved, 33 met inclusion criteria. Pooled o
dds ratios (FOR) showed conventional rectal corticosteroids and rectal
budesonide to be clearly superior to placebo. In seven trials, rectal
5-aminosalicylic acid (5-ASA) was significantly better than conventio
nal rectal corticosteroids for inducing remission of symptoms, endosco
py, and histology with POR of 2.42 (95% confidence interval (CI) 1.72-
3.41), 1.89 (95% CI 1.29-2.76), and 2.03 (95% CI 1.28-3.20), Methods r
espectively. Rectal budesonide was of Relevant comparable efficacy to
conventional corticosteroids but produced less endogenous cortisol sup
pression. Side effects, although inconsistently reported, were general
ly minor. A cost comparison of rectal preparations showed 5-ASA to be
less expensive than corticosteroids. Conclusions-Rectal 5-ASA is super
ior to rectal corticosteroids in the management of distal ulcerative c
olitis.