Table 2– Adenosine monophosphate (AMP) provocative concentration causing a 20% fall in forced expiratory volume in 1 s (PC20) for the different particle sizes, measuremed at baseline and after treatment with ciclesonide or fluticasone
All subjectsSubjects with baseline PC20 <640 mg·mL−1
CiclesonideFluticasonep-valueCiclesonideFluticasonep-value
Subjects n19181112
Baseline PC20 DD
 Standard-particle AMP4.2±2.83.5±2.10.41
 Large-particle AMP4.9±3.33.8±3.20.303.7±2.63.0±2.40.44
 Small-particle AMP6.8±3.66.6±2.70.874.9±3.75.2±2.10.81
Post-treatment PC20 DD
 Large-particle AMP4.8±2.74.5±2.30.774.5±2.3#4.3±2.40.89
 Small-particle AMP7.4±2.06.7±2.80.426.6±2.06.0±2.7#0.53
  • Data are presented as mean±sd, unless otherwise stated. Values are 2log PC20 values. Between-group differences were tested with t-test. The 23 subjects at the right part of the table are those subjects who reach a PC20 <640 mg·mL−1 with the the small- and large-particle AMP protocol at baseline. DD: doubling dose. # p = 0.17 within group;: p = 0.03 within group.