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Randomised trials of proton pump inhibitors for gastro-oesophageal reflux disease in patients with asthma: an updated systematic review and meta-analysis.


ABSTRACT:

Objective

Asthma often coexists with gastro-oesophageal reflux disease (GERD). The effect of proton pump inhibitors (PPIs) treatment on asthma concomitant with GERD was inconsistent. This study aimed to assess whether PPIs treatment improved morning peak expiratory flow (mPEF) in asthma patients with GERD.

Data sources

PubMed, MEDLINE, EMBASE, Web of Science, Cochrane Library and ClinicalTrials.gov; hand searching for reference lists; contacted with authors if necessary.

Study selection

All eligible trials were randomised clinical trials comparing PPIs with placebo in asthma patients accompanying with GERD.

Results

Fourteen randomised clinical trials (2182 participants) were included. Overall, PPIs versus placebo did not affect mPEF in patients with asthma having GERD (weighted mean difference 8.68 L/min, 95% CI -2.02 to 19.37, p=0.11). Trial sequential analysis (TSA) further confirmed this finding (TSA adjusted 95% CI -1.03 to 22.25). Subgroups analyses based on the percentage of patients with symptomatic GERD≥95%, treatment duration >12 weeks also found no statistically significant benefit on mPEF. Similarly, analyses of secondary outcomes (evening PEF, forced expiratory volume in 1 s, asthma symptoms score, asthma quality of life score and episodes of asthma exacerbation) did not show significant difference between PPIs and placebo.

Conclusion

In this meta-analysis, PPIs therapy did not show a statistically significant improvement on mPEF in asthma patients having GERD, neither in subgroup with symptomatic GERD nor in subgroup with treatment duration >12 weeks. This analysis does not support a recommendation for PPIs therapy as empirical treatment in asthma patients with GERD.

Prospero registration number

CRD42020177330.

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC8356177 | biostudies-literature |

REPOSITORIES: biostudies-literature

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