The sample size of 15 patients per group accorded with
previous phase 2 studies allowing for up to three drop-outs
per group.19 The primary effi cacy endpoint was the EBA
over 14 days measured by the daily rate of change of
log10CFU in sputum (EBACFU0–14). The slopes could be
described by linear, bilinear, or multiple regression
depending on which method fi tted the data best. On the
basis of the slopes, the EBA parameters were established
as weighted averages over the study period for each
individual patient and then averaged to obtain the value for
each treatment group. In the case of dropouts, their data
were included in the analyses as long as enough points
were recorded to allow curve fi tting. Secondary endpoints
included the EBACFU days 0–2, EBACFU days 2–14, EBACFU
days 0–7, and EBACFU days 7–14. EBATTP was assessed in an
analogous fashion from the daily prolongation of TTP over
the relevant time period. The study was not powered for
diff erence testing; only exploratory comparisons between
experimental groups with one-way ANOVA were
attempted and no statistical comparison was made with
the EBA of the control group on standard treatment.
This trial is registered, NCT01215851.
The sample size of 15 patients per group accorded withprevious phase 2 studies allowing for up to three drop-outsper group.19 The primary effi cacy endpoint was the EBAover 14 days measured by the daily rate of change oflog10CFU in sputum (EBACFU0–14). The slopes could bedescribed by linear, bilinear, or multiple regressiondepending on which method fi tted the data best. On thebasis of the slopes, the EBA parameters were establishedas weighted averages over the study period for eachindividual patient and then averaged to obtain the value foreach treatment group. In the case of dropouts, their datawere included in the analyses as long as enough pointswere recorded to allow curve fi tting. Secondary endpointsincluded the EBACFU days 0–2, EBACFU days 2–14, EBACFUdays 0–7, and EBACFU days 7–14. EBATTP was assessed in ananalogous fashion from the daily prolongation of TTP overthe relevant time period. The study was not powered fordiff erence testing; only exploratory comparisons betweenexperimental groups with one-way ANOVA wereattempted and no statistical comparison was made withthe EBA of the control group on standard treatment.This trial is registered, NCT01215851.
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