Assessment of Patient Experiences with Respimat ^® in Everyday Clinical Practice

Abstract

Introduction

Chronic obstructive pulmonary disease (COPD) is a progressive disease requiring maintenance therapy. According to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) strategy report, bronchodilation with long-acting muscarinic antagonists (LAMAs) and long-acting β ₂-agonists (LABAs), administered via inhalers, is currently the mainstay of COPD treatment. Combined LAMA/LABA therapies have been shown to improve patient health status, lung function and breathlessness. Here, we wanted to report patient satisfaction with the Respimat ^® Soft Mist™ inhaler (SMI).

Methods

This was a pooled analysis of SPIRIT ^® (NCT02675517) and OTIVACTO ^® (NCT02719639), two open-label, single-arm, non-interventional studies of physical function in patients with COPD. Patients were treated with tiotropium/olodaterol 5/5 μg for approximately 6 weeks via the SMI. SPIRIT was conducted in Germany; OTIVACTO was conducted in nine European countries. The primary endpoints have been reported previously. Here, we assess patient satisfaction with inhalation and handling, and patient adherence to treatment with the tiotropium/olodaterol SMI in patients with COPD. These were assessed through self-reported questionnaires and physician general assessments.

Results

Baseline data were collected from 9180 patients from the SPIRIT and OTIVACTO studies. The majority of patients were GOLD group A (25.59%) or B (46.12%). After 6 weeks of treatment with tiotropium/olodaterol, 85.78% of patients were ‘satisfied’ or ‘very satisfied’ with inhaling from the device, and 84.33% of patients were ‘satisfied’ or ‘very satisfied’ with the handling of the inhaler. Treating physicians reported patient adherence as ‘high’ during the study, with 98.57% of patients regularly using the tiotropium/olodaterol SMI. Furthermore, 95.45% of patients expressed a willingness to continue using the tiotropium/olodaterol SMI at the end of the observation period.

Conclusion

In this study, over 9000 patients reported satisfaction with respect to inhalation and handling of the Respimat SMI, and patient adherence was high.

Trial registration

ClinicalTrials.gov: NCT02675517 (SPIRIT) and NCT02719639 (OTIVACTO).

Plain Language Summary

Inhalation devices are the main method of delivering treatments to patients with chronic obstructive pulmonary disease (COPD). However, there are many devices available, which can lead to confusion and poor inhaler technique. To help doctors decide which device to give to their patients, they consider whether the patient would be happy with the device and whether they can use it correctly. This study pooled data from two large real-life studies to assess patient satisfaction with the Respimat ^® Soft Mist™ inhaler. Patients assessed their satisfaction and willingness to continue using the device at the end of the study period.

The pooled data included over 9000 patients on a range of baseline therapies. After 6 weeks of using the trial device, over 85% of patients were satisfied or very satisfied with inhaling from the device, and over 84% were satisfied with the handling of the device. Physicians reported that nearly 99% of patients regularly used their device. Also, over 95% of the patient population reported that they continued using the inhaler at the end of the study.

Overall, these results support the view that many patients with COPD across a wide range of severities and baseline characteristics demonstrated satisfaction with the Respimat ^® Soft Mist™ inhaler to control their disease.