Table 3 Maintenance of device mastery and inhalation errors after 12 weeks in the longitudinal phase

 Patients without errors (inhalations 1 & 2) (co-primary endpoint), n (%)

89 (58.9)

82 (53.2)

1.26 (0.80–1.98)^c

0.316

 Patients without errors related to dose preparation (inhalation 1), n (%)

128 (84.8)

111 (72.1)

2.16 (1.22–3.80)^c

0.007

 Patients without errors related to the inhalation maneuver (inhalation 1), n (%)

117 (77.5)

116 (75.3)

1.13 (0.66–1.92)^c

0.657

 Number of HCP-observed errors per patient, mean (SD)

0.50 (0.67)

0.81 (1.10)

0.61 (0.44–0.84)^d

0.003

 n^b

119

124

–

–

 Total number of errors observed by video expert

56

124

–

–

 Patients without errors (inhalations 1 & 2), n (%)

79 (66.4)

60 (48.4)

2.11 (1.25–3.54)^c

0.005

 Number of video expert assessed errors per patient, mean (SD)

0.47 (0.78)

1.00 (1.26)

0.47 (0.34–0.64)^d

< 0.001