TABLE 3

Average percentages of urinary and fecal metabolites of CP-122,721 in EM and PM human subjects following administration of a 30-mg (free dose) oral dose


Metabolite

m/z

Description

Percentage Dose for EMa (Mean ± S.D., n = 4)

Percentage Dose for PMa (Mean, n = 2)
Urine
Feces
Urine
Feces
M16 409 Piperadinedione 2.3 ± 0.3 N.D. 2.5 N.D.
M1 475 Hydroquinone + Gluc 4.1 ± 5 N.D. N.D. N.D.
M17 384 Desmethyl + N-dealkyl + Gluc 4.5 ± 1 N.D. 3.1 N.D.
M18 402 Desmethyl + oxidative deamination + Gluc 10.9 ± 2 N.D. 9.5 N.D.
M12 288 Desmethyl + N-dealkyl + sulfation 2.9 ± 1 N.D. 0.8 N.D.
M2 573 OH + Gluc 7.3 ± 2 N.D. 2.7 N.D.
M3 559 Desmethyl + OH + Gluc 5.5 ± 1 N.D. 6.8 N.D.
M14 559 Desmethyl + OH + Gluc 5.3 ± 1 N.D. 10.7 N.D.
M19 557 Desmethyl + lactam + Gluc 6.3 ± 2 N.D. 17.2 N.D.
M4 543 Desmethyl + Gluc 27.5 ± 9 N.D. N.D. N.D.
M20 573 Desmethyl + lactam + OH + Gluc 7.3 ± 3 N.D. 2.7 N.D.
M15 (TFMSA) 221 Trifluoromethyoxy salicylic acid 1.4 ± 0.2 N.D. 3.5 N.D.
M7 383 Desmethyl + OH N.D. 6.1* N.D. N.D.
M8 367 Desmethyl N.D. 3.4* N.D. N.D.
CP-122, 721 381 Parent 0.4 ± 0.3 N.D. 1.9 4.63
M9 381 Desmethyl + lactam N.D. N.D. N.D. 2.27
Totals


95.2
68.4
  • N.D., not detected.

  • * Detected in two subjects.

  • a Percentage dose is calculated based on total percentage 14C excreted from urine and feces of each subject shown in Table 1 (% dose Mx = % radioactivity Mx · total % 14C excreted).