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Table 2 Primary PK evaluation (PK analysis set)

From: Pharmacokinetics and bioequivalence evaluation of two oral formulations of cotrimoxazole tablets in healthy Chinese volunteers under fasting conditions

Parameter (units)

Sulfamethoxazole

Trimethoprim

mean ± SD (% CV)

mean ± SD (% CV)

Test (N = 25)

Reference (N = 25)

Test (N = 26)

Reference (N = 25)

Tmax (h)*

2.5 (0.75,4.00)

1.5 (0.75,5.00)

0.75 (0.33,2.00)

1.00 (0.33,3.50)

Cmax (ng/mL)

29,500 ± 5800 (19.7)

27,100 ± 5620 (20.7)

894 ± 208(23.2)

863 ± 163 (18.9)

AUC0 − t (ng·h/mL)

330511.74 ± 44951.68 (13.6)

323200.10 ± 38368.41 (11.87)

8362.34 ± 1999.94 (23.92)

8120.30 ± 2042.16 (25.15)

AUC0−∞ (ng·h/mL)

339444.27 ± 47932.52 (14.12)

331787.30 ± 40534.69 (12.22)

8536.13 ± 2059.01 (24.12)

8286.28 ± 2095.23 (25.29)

λz (1/h)

0.08 ± 0.01 (13.11)

0.08 ± 0.01 (13.35)

0.10 ± 0.01 (14.67)

0.10 ± 0.02 (15.76)

T1/2z (h)

8.74 ± 1.15 (13.11)

8.80 ± 1.12 (12.76)

7.17 ± 1.11 (15.49)

7.18 ± 1.18 (16.47)

  1. Tmax, time to reach maximum concentration, shown as median (min, max); Cmax, maximum plasma drug concentration; AUC0 − t, area under the plasma concentration-time curve from time 0 to the last measurable concentration; AUC0−∞, area under the plasma concentration-time curve from time 0 to infinity; PK, pharmacokinetic; T1/2z, elimination half life
  2. * Median (Min, Max)