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Table 3 Descriptive analysis of the kinetics of serum Neopterina and serum β2-microglobulin increments.

From: Pharmacokinetic and pharmacodynamic comparison of two "pegylated" interferon alpha-2 formulations in healthy male volunteers: a randomized, crossover, double-blind study

Variable

Formulation A N = 15

Formulation B N = 15

p

90% CI

Neopterin

    

AUEC (ng.h/mL)

500 ± 332

474 ± 257

0.75

(0.71 - 1.26)

Rmax (ng/mL)

3.6 ± 1.9

3.8 ± 2.1

0.79

(0.75 - 1.48)

T(Rmax) (h)

48 ± 24

48 ± 24

0.19

(0.61 - 1.00)

MET (h)

104 ± 36.5

108 ± 34.2

0.66

(0.88 - 1.24)

RAV

0.010 ± 0.007

0.009 ± 0.003

0.865

(0.76 - 1.20)

β2-microglobulin

    

AUEC (μg.h/mL)

211 ± 145

190 ± 95

0.50

(0.70 - 1.16)

Rmax (μg/mL)

1.2 ± 0.5

1.2 ± 0.5

0.99

(0.83 - 1.22)

T(Rmax) (h)

72 ± 72

72 ± 24

0.10

(0.58 - 1.00)

MET (h)

131 ± 43

161 ± 63

0.09

(1.01 - 1.50)

RAV

0.008 ± 0.005

0.006 ± 0.001

0.37

(0.71 - 1.11)

  1. Data are reported as mean ± standard deviation, except for T(Rmax) expressed as median ± quartile range.
  2. CI: confidence intervals of the mean Test/Reference ratio
  3. One volunteer (#13) was excluded from the pharmacodynamic comparison (see text)
  4. p: Paired t test between groups, except for T(Rmax) (Wilcoxon's test)