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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
04 Oct 2020
Obesity does not appear to be strongly correlated with an increased risk for febrile neutropaenia during levofloxacin prophylaxis in patients with haematological malignancies receiving intermediate-risk myelosuppressive chemotherapy, suggests a study.
Roshini Claire Anthony, Yesterday

Initiation or switch to the single-tablet regimen of bictegravir/emtricitabine/tenofovir alafenamide (TAF) led to low HIV-1 RNA viral load in people living with HIV (PLHIV), according to the BICSTaR study presented at HIV Glasgow 2020.

09 Nov 2020
Use of corticosteroids appears to be an effective treatment for paediatric drug reaction with eosinophilia and systemic symptoms (DRESS), suggest the results of a recent study. In severe cases, corticosteroids used in conjunction with intravenous immunoglobulin result in fast clinical improvement.
07 Aug 2020
Concomitant treatment with a nonsteroidal anti-inflammatory drug (NSAID) following myocardial infarction (MI) is associated with a higher risk of cardiovascular and bleeding events, a study has shown.