The efficacy and safety of triple inhaled treatment in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis using Bayesian methods

Int J Chron Obstruct Pulmon Dis. 2015 Nov 3;10:2365-76. doi: 10.2147/COPD.S93191. eCollection 2015.

Abstract

Purpose: Although tiotropium (TIO) and inhaled corticosteroid (ICS)/long-acting β-agonists are frequently prescribed together, the efficacy of "triple therapy" has not been scientifically demonstrated. We conducted a systematic review and meta-analysis using Bayesian methods to compare triple therapy and TIO monotherapy.

Methods: We searched the MEDLINE, EMBASE, and Cochrane Library databases for randomized controlled trials comparing the efficacy and safety of triple therapy and TIO monotherapy in patients with chronic obstructive pulmonary disease (COPD). We conducted a meta-analysis to compare the effectiveness and safety of triple therapy and TIO monotherapy using Bayesian random effects models.

Results: Seven trials were included, and the risk of bias in the majority of the studies was acceptable. There were no statistically significant differences in the incidence of death and acute exacerbation of disease in the triple therapy and TIO monotherapy groups. Triple therapy improved the prebronchodilator forced expiratory volume in 1 second (mean difference [MD], 63.68 mL; 95% credible interval [CrI], 45.29-82.73), and patients receiving triple therapy showed more improvement in St George Respiratory Questionnaire scores (MD, -3.11 points; 95% CrI, -6.00 to -0.80) than patients receiving TIO monotherapy. However, both of these differences were lower than the minimal clinically important difference (MCID). No excessive adverse effects were reported in triple therapy group.

Conclusion: Triple therapy with TIO and ICSs/long-acting β-agonists was only slightly more efficacious than TIO monotherapy in treating patients with COPD. Further investigations into the efficacy of new inhaled drugs are needed.

Keywords: chronic obstructive pulmonary disease (COPD); inhaled corticosteroids (ICSs); inhaled long-acting muscarinic antagonists (LAMAs); inhaled long-acting β2-agonists (LABAs).

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't
  • Review
  • Systematic Review

MeSH terms

  • Administration, Inhalation
  • Adrenal Cortex Hormones / administration & dosage*
  • Adrenal Cortex Hormones / adverse effects
  • Adrenergic beta-2 Receptor Agonists / administration & dosage*
  • Adrenergic beta-2 Receptor Agonists / adverse effects
  • Bayes Theorem
  • Bronchodilator Agents / administration & dosage*
  • Bronchodilator Agents / adverse effects
  • Cholinergic Antagonists / administration & dosage*
  • Cholinergic Antagonists / adverse effects
  • Drug Combinations
  • Forced Expiratory Volume
  • Humans
  • Lung / drug effects*
  • Lung / physiopathology
  • Odds Ratio
  • Pulmonary Disease, Chronic Obstructive / diagnosis
  • Pulmonary Disease, Chronic Obstructive / drug therapy*
  • Pulmonary Disease, Chronic Obstructive / physiopathology
  • Recovery of Function
  • Surveys and Questionnaires
  • Tiotropium Bromide / administration & dosage*
  • Tiotropium Bromide / adverse effects
  • Treatment Outcome

Substances

  • Adrenal Cortex Hormones
  • Adrenergic beta-2 Receptor Agonists
  • Bronchodilator Agents
  • Cholinergic Antagonists
  • Drug Combinations
  • Tiotropium Bromide