Table 2.
Pharmacokinetic data of diclofenac in the 20 male study participants classified by CYP2C9 genotype.
| Diclofenac | 4′-OH Diclofenac | |||||||
|---|---|---|---|---|---|---|---|---|
| CYP2C9 genotype | Code | Clearance/F(L h−1) | tlag(h) | Cmax(µg L−1) | t1/2(h) | AUC last(µg h L−1) | tmax(h) | Cmax(µg L−1) |
| *1/*1 | 1 | 17.1 | 1.08 | 3124 | 0.89 | 321 | 2.33 | 96 |
| 16 | 19.2 | 0.55 | 1797 | 1.8 | – | – | – | |
| 25 | 24.4 | 1.62 | 1473 | 0.77 | 423 | 3.1 | 122 | |
| Mean | 20.2 | 1.08 | 2131 | 1.2 | 372 | 2.7 | 109 | |
| *1/*2 | 2 | 23.6 | 1.00 | 2331 | 0.42 | 126 | 2.50 | 94 |
| 22 | 32.5 | 0.53 | 910 | 1.3 | 402 | 2.03 | 100 | |
| 23 | 24.2 | 0.58 | 1719 | 1.2 | 34 | 2.53 | 29 | |
| 24 | 34.8 | 1.2 | 1034 | 1.2 | 266 | 3.17 | 89 | |
| Mean | 28.8 | 0.83 | 1498 | 1.0 | 207 | 2.56 | 78 | |
| *1/*3 | 7 | 31.3 | 3.18 | 1151 | 0.65 | 102 | 5.17 | 80 |
| 11 | 16.7 | 0.58 | 2462 | 1.4 | 502 | 2.08 | 102 | |
| 12 | 22.7 | 1.03 | 1498 | 0.98 | 86 | 2.57 | 39 | |
| 20 | 18.8 | 0.02 | 2604 | 1.2 | 210 | 1.53 | 142 | |
| Mean | 22.4 | 1.20 | 1929 | 1.1 | 225 | 2.84 | 91 | |
| *2/*2 | 3 | 26.7 | 1.07 | 1554 | 1.1 | 380 | 2.10 | 101 |
| 18 | 21.3 | 1.52 | 2963 | 1.1 | 342 | 2.52 | 116 | |
| 33 | 41.5 | 0.58 | 1405 | 0.27 | 221 | 2.08 | 205 | |
| Mean | 29.8 | 1.06 | 1974 | 0.81 | 314 | 2.23 | 141 | |
| *2/*3 | 4 | 71.5 | 1.55 | 278 | 1.5 | 281 | 6.05 | 98 |
| 9 | 32.6 | 4.07 | 734 | 0.85 | 813 | 5.03 | 540 | |
| 19 | 18.5 | 1.02 | 2229 | 0.91 | 267 | 2.02 | 125 | |
| Mean | 40.9 | 2.21 | 1081 | 1.1 | 453 | 4.37 | 254 | |
| *3/*3 | 5 | 25.7 | 1.05 | 1418 | 0.97 | 306 | 2.57 | 119 |
| 5 | 25.7 | 1.05 | 1418 | 0.97 | 306 | 2.57 | 119 | |
| 13 | 17.1 | 0.6 | 1650 | 1.1 | 841 | 2.10 | 99 | |
| 14 | 26.5 | 1.57 | 1764 | 1.3 | 181 | 2.58 | 58 | |
| Mean | 23.1 | 1.07 | 1610 | 1.1 | 442 | 2.42 | 92 | |
| All | Mean (95%CI) | 27.3 (21.5–33.1) | 1.2 (0.8–1.7) | 1704 (1360–2050 | 1.0 (0.88–1.2) | 321 (217–425) | 2.8 (2.3–3.4) | 124 (72–176) |
**4′-OH diclofenac could not be analysed in this subject.