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Table 1 Mean ± standard deviation pharmacokinetic parameters of lotilaner in adult cats after either single administration at a target dose of 6 mg/kg orally to fasted cats orally to fed cats, or at a target dose of 3.0 mg/kg intravenously. All values (mean and standard deviation) are based on geometric summary statistics (corresponding to summary statistics of log-transformed values and then back-transformed), except for Tmax which is based on the median

From: Pharmacokinetics of lotilaner following a single oral or intravenous administration in cats

Parameter

Intravenous, 3 mg/kg

(n = 8)

Oral, fed 6 mg/kg

(n = 11) b

Oral, fasted 6 mg/kg

(n = 6)

Actual doses (mg/kg)

3.07 ± 0.07

7.52 ± 0.83

8.00 ± 0.70

Tmax (hours)

na

4 (range: 1–24)

2 (range: 1–4)

Cmax (ng/ml)

na

3004 ± 709

348 ± 249

AUClast (day*ng/ml)

13,238 ± 2839

33,907 ± 6611

2901 ± 2207

AUCinf (day*ng/ml)

23,776 ± 9131

68,418 ± 23,220

4876 ± 3610

Cmax (dose normalized) (ng/ml)a

na

403.4 ± 107.0

43.6 ± 28.6

AUClast (dose normalized) (day*ng/ml)a

4315 ± 862

4554 ± 762

364 ± 255

AUCinf (dose normalized) (day*ng/ml)a

7750 ± 2876

9188 ± 3632

612 ± 420

T1/2z (day)

28.6 ± 14.3

33.6 ± 22.0

27.1 ± 7.7

MRT (day)

41.6 ± 19.5

48.9 ± 30.7

38.6 ± 9.9

CL (l/kg/day)

0.13 ± 0.05

na

na

Vz (l/kg)

5.34 ± 1.49

na

na

Vss (l/kg)

5.37 ± 1.37

na

na

Bioavailability (F%)

na

106

8.4

  1. aDose-normalized to 1 mg/kg
  2. aOne cat had an adverse event unrelated to the treatment (leg fracture) and was withdrawn from the study