ArticleMultidisciplinary respiratory medicine2017
Effects of combination therapy indacaterol/glycopyrronium versus tiotropium on moderate to severe COPD: evaluation of impulse oscillometry and exacerbation rate.
Article in Multidisciplinary respiratory medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 16 citations in OpenAlex.
- Correlation Between Body Plethysmography and Impulse Oscillometry Across Obstructive and Restrictive Lung Diseases: Evidence from an Adult Pilot Study Cohort.Diagnostics (Basel, Switzerland) · 2025Article
- Managing Small Airways Dysfunction in COPD Patients in Real Life Under Fixed Triple Combination of Beclomethasone/Formoterol/Glycopyrronium: The MASCOT Real World Evidence Study.International journal of chronic obstructive pulmonary disease · 2025Observational
- Reference equations using segmented regressions for impulse oscillometry in healthy subjects aged 2.7-90 years.ERJ open research · 2023Article
- Oscillometry in Lung Function Assessment: A Comprehensive Review of Current Insights and Challenges.Cureus · 2023Review
- Clinical significance and applications of oscillometry.European respiratory review : an official journal of the European Respiratory Society · 2022Review
- COPD beyond proximal bronchial obstruction: phenotyping and related tools at the bedside.European respiratory review : an official journal of the European Respiratory Society · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSmall airways are considered the major site of airflow limitation in COPD. Impulse oscillometry (IOS) is a forced oscillation technique, which provides passive measurement of lung mechanics. It can differentiate small airway from large airway obstruction and is more sensitive than spirometry for peripheral airway disease. In this study the efficacy of the combination of Indacaterol/Glycopirronium (IND/GLY) versus Tiotropium on airway resistance (R5, R20, R5-20), lung reactance (X) and resonant frequency in moderate to severe COPD patients has been evaluated. We also evaluated inspiratory capacity (IC), forced expiratory volume in 1 s (FEV
methodsForty patients were monitored with forced oscillation technique and spirometry. Patients were randomized in 2 groups: 20 received fixed dose once daily Indacaterol/Glycopyrronium (Group A) and 20 received single Tiotropium (Group B). The oscillometry parameters were the measure of resistance in the airways at 5 Hz (R5), at 20 Hz (R20) and the lung reactance (X).
resultsThere was a statistically significant difference between pre-dosing at V
conclusionsThe "new" bronchodilator combination LABA/LAMA significantly reduces bronchial obstruction in small airways too. The oscillometry demonstrated greater sensitivity compared with spirometry for monitoring outcome measures of airway obstruction and the effect of long-term therapy.
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Registered trials
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