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Original Research

A Preference Study of Two Placebo Dry Powder Inhalers in Adults with COPD: ELLIPTA® Dry Powder Inhaler (DPI) versus DISKUS® DPI

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Figures & data

Figure 1.  Inhalers used in the study: a) DISKUS DPI, b) ELLIPTA DPI.

Figure 1.  Inhalers used in the study: a) DISKUS DPI, b) ELLIPTA DPI.

Figure 2.  Study design schematic. BID, twice daily; DPI, dry powder inhaler; QD, once daily.

Figure 2.  Study design schematic. BID, twice daily; DPI, dry powder inhaler; QD, once daily.

Figure 3.  CONSORT diagram.

Figure 3.  CONSORT diagram.

Table 1.  Patient demographics, COPD history, and tobacco use

Table 2.  Exposure and inhaler use compliance (ITT population)

Table 3.  Analysis of inhaler attribute and dose regimen preference (PP population)

Table 4.  Adverse events occurring in more than one patient (ITT Population)

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