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Annals of Gastroenterology 2020Curcumin, an active ingredient of the Indian herb turmeric (Curcuma longa), has shown promising anti-inflammatory properties. Studies of its potential benefits in...
BACKGROUND
Curcumin, an active ingredient of the Indian herb turmeric (Curcuma longa), has shown promising anti-inflammatory properties. Studies of its potential benefits in treating patients with ulcerative colitis (UC) are limited. We performed a systematic review and meta-analysis of human randomized placebo controlled trials to evaluate the efficacy of adjunctive therapy with curcumin in treating patients with UC.
METHODS
We conducted a search of several databases (from January 2000 to September 2018). A random-effects model was used for analysis. We assessed heterogeneity between study-specific estimates using the Cochran Q statistical test, 95% prediction interval (PI) and I statistics. The outcomes assessed were the pooled odds of clinical response and remission as well as the endoscopic response.
RESULTS
A total of 7 studies with 380 patients (curcumin n=188; placebo n=190) were included in the final analysis. The pooled odds ratio for clinical remission with curcumin use was 2.9 (95%CI 1.5-5.5, I=45, P=0.002), clinical response was 2.6 (95%CI 1.5-4.5, I=74%, P=0.001), and endoscopic response/remission was 2.3 (95%CI 1.2-4.6, I=35.5%, P=0.01).
CONCLUSIONS
Based on our study, combined mesalamine and curcumin therapy was associated with roughly threefold better odds of a clinical response compared to placebo, with minimal side effects. This response was statistically significant, albeit with heterogeneity, probably due to the different severity scoring indices, curcumin dosages and routes of drug delivery used.
PubMed: 31892798
DOI: 10.20524/aog.2019.0439 -
Journal of Gastroenterology and... May 2020Aminosalicylic acids are recognized to be the first-line treatment options for ulcerative colitis. Currently, the effectiveness of curcumin as an adjuvant treatment in... (Meta-Analysis)
Meta-Analysis
BACKGROUND AND AIM
Aminosalicylic acids are recognized to be the first-line treatment options for ulcerative colitis. Currently, the effectiveness of curcumin as an adjuvant treatment in ulcerative colitis has been investigated, which was still controversial. This study aimed to systematically review and meta-analyze the efficacy and safety of curcumin as an adjuvant treatment in ulcerative colitis.
METHODS
The PubMed, EMBASE, and Cochrane Library databases were searched from original to July 2019, and relevant randomized controlled clinical trials were enrolled and analyzed. The primary outcomes were clinical and endoscopic remission; meanwhile, the secondary outcomes were clinical and endoscopic improvement. Subgroup analyses of doses, delivery way, form, and intervention time of curcumin were also conducted.
RESULTS
Six randomized controlled clinical trials with a total of 349 patients were included. Eligible trials suggested that adjuvant curcumin treatment in ulcerative colitis was effective in inducing clinical remission (odds ratio [OR] = 5.18, 95% confidence interval [CI]: 1.84-14.56, P = 0.002), endoscopic remission (OR = 5.69, 95% CI: 1.28-25.27, P = 0.02), and endoscopic improvement (OR = 17.05, 95% CI: 1.30-233.00, P = 0.03), but not in clinical improvement (OR = 4.79, 95% CI: 1.02-22.43, P = 0.05). We can see the potential advantages in large dosage, topical enema, special drug form, and longer duration from the enrolled studies. There were no severe side effects reported.
CONCLUSIONS
Curcumin, as an adjuvant treatment of mesalamine, was proved to be effective and safe in ulcerative colitis. Better efficacy can be achieved with suitable dose, delivery way, formation, and intervention time, which needs further study to verify.
Topics: Chemotherapy, Adjuvant; Colitis, Ulcerative; Curcumin; Dosage Forms; Phytotherapy; Randomized Controlled Trials as Topic; Treatment Outcome
PubMed: 31696975
DOI: 10.1111/jgh.14911 -
British Journal of Clinical Pharmacology Oct 2019The comparative efficacy, safety and tolerability of budesonide-MMX and oral mesalamine in active, mild-to-moderate ulcerative colitis (UC) are unclear. We conducted a... (Comparative Study)
Comparative Study Meta-Analysis
AIMS
The comparative efficacy, safety and tolerability of budesonide-MMX and oral mesalamine in active, mild-to-moderate ulcerative colitis (UC) are unclear. We conducted a network meta-analysis to fill this evidence gap.
METHODS
We searched PubMed, Scopus, Embase, the Cochrane Library, clinical trial registries, regulatory agencies' websites and international conference proceedings, up to July 2018, to identify randomized controlled trials of adult patients with active, mild-to-moderate UC, comparing budesonide-MMX or mesalamine against placebo, or against each other, or different dosing strategies, for induction of remission. Two reviewers independently abstracted study data and outcomes, and assessed each trial's risk-of-bias.
RESULTS
We identified and synthesized evidence from 15 eligible trials including 4083 participants. Budesonide-MMX 9 mg/day and mesalamine >2.4 g/day had similar efficacy for induction of clinical and endoscopic remission (OR = 0.97; 0.59-1.60), both showing superiority over placebo (OR = 2.68; 1.75-4.10, and OR = 2.75; 1.94-3.90, respectively). Furthermore, mesalamine >2.4 g/day was more efficacious than mesalamine 1.6-2.4 g/day (odds ratio = 1.27; 1.03-1.56). Secondary analyses showed that mesalamine >2.4 g/day ranks at the top among comparator treatments regarding safety (serious adverse events; surface under the cumulative ranking area [SUCRA] 79.2%) and tolerability (treatment discontinuations or withdrawals from the study due to adverse events; SUCRA 96.7%). There was no evidence of inconsistency, while heterogeneity between studies and risk of publication bias were low.
CONCLUSION
Budesonide-MMX and mesalamine >2.4 g/day had similar efficacy for induction of clinical and endoscopic remission in active, mild-to-moderate UC; however, mesalamine >2.4 g/day showed better tolerability. Further high-quality research is warranted.
Topics: Adult; Anti-Inflammatory Agents, Non-Steroidal; Budesonide; Colitis, Ulcerative; Delayed-Action Preparations; Glucocorticoids; Humans; Mesalamine; Randomized Controlled Trials as Topic; Severity of Illness Index; Treatment Outcome
PubMed: 31269287
DOI: 10.1111/bcp.14051 -
Digestion 2020Oral 5-aminosalicylic acid (5-ASA, mesalazine) is the first choice therapeutic agent for treating mild-to-moderate ulcerative colitis (UC). Unfortunately a significant...
Does the 5-Aminosalicylate Concentration Correlate with the Efficacy of Oral 5-Aminosalicylate and Predict Response in Patients with Inflammatory Bowel Disease? A Systematic Review.
BACKGROUND
Oral 5-aminosalicylic acid (5-ASA, mesalazine) is the first choice therapeutic agent for treating mild-to-moderate ulcerative colitis (UC). Unfortunately a significant group of patients fail to respond. Therapeutic drug monitoring might help to maintain or induce remission by providing a tool for optimization of 5-ASA therapy. However, plasma and urine concentrations of 5-ASA reflect systemic uptake and are not useful to evaluate therapeutic effect.
OBJECTIVES
To explore if mucosal and faecal 5-ASA values correlate with disease activity and/or therapeutic effects in patients with inflammatory bowel disease, especially UC.
METHOD
We identified studies that analysed 5-ASA in faeces or mucosa of humans using an oral 5-ASA formulation, using PubMed and Embase.
RESULTS
In total, 39 studies (n = 939) were included, 27 on faecal 5-ASA, 9 on mucosal concentrations, and 3 on both faecal and mucosal values. We included 33 cross-sectional studies, 3 randomised clinical trials, 2 longitudinal cohorts and 1 randomized cross-over study. Mucosal 5-ASA concentrations in healthy subjects and patients on equivalent doses of 5-ASA were not found to differ remarkably. In the sub-analysis of mucosal 5-ASA concentrations in patients with active or quiescent UC, a higher concentration was seen during remission. Faecal concentrations were associated with 5-ASA doses but not with disease activity. Differences in faecal or mucosal 5-ASA values could not be ascribed to different 5-ASA formulations.
CONCLUSIONS
An increase of the mucosal 5-ASA concentrations was observed during remission in patients with UC. No clear relationship between the faecal 5-ASA excretion and the therapeutic efficacy was identified.
Topics: Administration, Oral; Anti-Inflammatory Agents, Non-Steroidal; Biological Availability; Colitis, Ulcerative; Colon; Drug Monitoring; Feces; Humans; Intestinal Mucosa; Mesalamine; Treatment Outcome
PubMed: 31013494
DOI: 10.1159/000499331