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. 2014 Apr 28;8:397–403. doi: 10.2147/DDDT.S62118

Table 2.

Geometric mean ratios for Cmax and AUC and Hodges–Lehman estimate for tmax and their corresponding 90% confidence intervals for the comparisons between test and reference formulations in studies I (N=19) and II (N=22)

PK variable Treatment comparison Geometric mean ratio or Hodges–Lehman estimate 90% confidence interval
Study I
Cmax A/C 0.85 0.69, 1.04
B/C 0.78 0.64, 0.95
D/B 0.81 0.56, 1.18
AUC0–∞ A/C 1.04 0.94, 1.14
B/C 0.93 0.85, 1.03
D/B 0.95 0.84, 1.07
tmax A/C 0.1 −0.05, 0.6
B/C 0.1 −0.5, 0.5
D/B −0.01 −0.4, 0.5
Study II
Cmax B/A 0.19 0.16, 0.19
C/A 0.36 0.31, 0.42
C/B 2.23 1.88, 2.66
AUC0–24h B/A 0.14 0.13, 0.16
C/A 0.32 0.29, 0.35
C/B 2.20 2.02, 2.40
tmax B/A 0.2 0.0, 0.4
C/A 0.1 −0.05, 0.2
C/B −0.1 −0.3, 0.1

Notes: Study I treatments: (A) a single 200 mg dose of a tablet formulation with increased crystal size administered as 2×100 mg, (B) a single 200 mg dose of a tablet formulation with increased crystal size and excipients in the extra-granular phase administered as 2×100 mg, (C) a single 200 mg dose of the old formulation used in previous studies administered as 2×100 mg, and (D) a single 200 mg dose of a tablet formulation with increased crystal size and excipients in the extra-granular phase administered as one 200 mg tablet. Study II treatments: (A) a single 200 mg dose of a tablet formulation with increased crystal size and excipients in the extra-granular phase administered as 2×100 mg (same as treatment B in study I); (B) 25 mg of a liquid-filled hard gelatin capsule; (C) 50 mg of a liquid-filled hard gelatin capsule administered as 2×25 mg capsules.

Abbreviations: AUC, area under the curve; Cmax, maximum concentration; PK, pharmacokinetics; tmax, the median time to the maximum concentration.