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Meta-analysis pinpoints effective treatments for functional dyspepsia

10 Oct 2020

In managing functional dyspepsia, itopride and acotiamide, tricyclic antidepressants (TCAs), histamine‐2 receptor antagonists (H2RAs), proton pump inhibitors (PPIs), and the antipsychotic sulpiride or levosulpiride all prove to be more effective than placebo, according to the results of a meta-analysis.

Researchers looked for multiple online databases for randomized controlled trials (RCTs) evaluating the efficacy of drugs vs placebo in adults with functional dyspepsia. The search yielded 83 articles, of which 71 separate RCTs were included in the meta-analysis.

The total study population comprised 19,243 patients, among whom 12,535 received a drug and 6,708 a placebo. Drugs examined were H2RAs, acotiamide, itopride, standard/low/high-dose PPIs, TCAs, 5-HT1A-receptor agonists, antipsychotics, tegaserod, H2RAs, selective serotonin reuptake inhibitors (SSRIs), serotonin–norepinephrine reuptake inhibitors (SNRIs), mirtazapine, and mosapride. Trials lasted 2 weeks. Risk of bias across all domains was low among 20 RCTs reported in 18 articles.

Pooled data revealed that antipsychotics, TCAs, H2RAs, standard- and low-dose PPIs, itopride and acotiamide were all superior to placebo.

In the network meta-analysis, TCAs were ranked second for efficacy (relative risk [RR], 0.71, 95 percent confidence interval [CI], 0.58–0.87; surface under the cumulative ranking curve [SUCRA], 0.87). However, they placed first when only low bias risk trials were included.

Meanwhile, sulpiride or levosulpiride was ranked first for efficacy (RR, 0.49, 95 percent CI 0.36–0.69, SUCRA 0.99), but the quality was low and only 86 patients received active therapy.

In addition, the following drugs showed a statistically significant effect: H2RAs (RR, 0.81, 95 percent CI, 0.73–0.90; SUCRA, 0.72), standard-dose PPIs (RR, 0.84, 95 percent CI, 0.77–0.91; SUCRA, 0.65), and low-dose PPIs (RR, 0.86, 95 percent CI, 0.79–0.94; SUCRA, 0.54).

When evaluating comparative efficacy, antipsychotics showed superiority to all other agents, except TCAs and mirtazapine. H2RAs and PPIs (low and standard dose) had comparable effects.

Adverse events occurred more frequently with TCAs than with placebo, but most RCTs of TCAs involved patients who were refractory to other drugs.

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Most Read Articles
Roshini Claire Anthony, 09 Oct 2020

The risk of falls and subsequent injuries (eg, fractures) may be elevated in individuals with diabetes compared with the general population, according to a nationwide cohort study from Denmark.

Audrey Abella, 10 Sep 2020
Interim results of REGENERATE* trial highlight the ability of experimental noninvasive tests to evaluate treatment response in adults with NASH** and advanced liver fibrosis who are receiving obeticholic acid (OCA).
Rachel Soon, 28 Aug 2020
MOH Director-General Tan Sri Dato' Seri Dr Noor Hisham Abdullah speaks about NHMS 2019 and pharmacists' roles in combating NCDs among Malaysians.
Jairia Dela Cruz, 23 Sep 2020
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