Swiss Experience in Therapy With Dual Bronchodilation in Chronic Obstructive Pulmonary Disease in Relation to Self-Reported Physical Functionality

Marc Spielmanns, Michael Tamm, Sebastian Schildge, Arschang Valipour

Abstract


Background: Medical therapy in chronic obstructive pulmonary disease (COPD) usually includes inhaled dual bronchodilation leading not only to an improvement in symptoms but also to an increase in physical performance. However, it remains unknown whether responder rates to dual bronchodilation differ between the Swiss subgroup in comparison to participants of other European countries.

Methods: The non-interventional OTIVACTO trial investigated changes in self-reported physical functioning in COPD patients treated with tiotropium/olodaterol 5/5 µg fixed dose combination for 6 weeks. The cut-off between responder and non-responder was defined as a minimum increase of 10 points using the 10-question physical functioning questionnaire (PF-10) score. We searched for patterns of the responder patient group and compared the results of the whole dataset with the subgroup of Swiss participants.

Results: Compared to the total cohort (n = 7,608), the Swiss participants (n = 94) were predominantly > 65 years of age and had significantly more comorbidities. There were no significant differences according to COPD stage, smoking status, exacerbation rate in the last 12 months and modified Medical Research Council questionnaire (mMRC) score between the total cohort and the Swiss collective. There were no significant differences between the Swiss subgroup and the total cohort with regard to response to the medication in the PF-10 score. In the intragroup comparison, patients with high mMRC score showed significantly higher values in the PF-10 in both groups. The number of exacerbations had no influence on the PF-10 score in the Swiss subgroup but in the total cohort.

Conclusion: In terms of age and number of comorbidities, significant differences were found between the overall patient population and the Swiss participants, having no influence on the success of the medication. The patients suffering from increased dyspnea benefited most from tiotropium/olodaterol treatment (Clinical Trials Registry NCT02720757).




J Clin Med Res. 2021;13(7):392-402
doi: https://doi.org/10.14740/jocmr4542

Keywords


COPD; Physical functioning; PF-10; Tiotropium bromide; Olodaterol

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