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Table 3 Mean flea counts in control and lotilaner-treated animals and % efficacy at 8 hours post-treatment and 8 hours after weekly infestations (Study 2)

From: Laboratory evaluation of the efficacy and speed of kill of lotilaner (Credelio™) against Ctenocephalides felis on cats

 

Number of animals, day of infestation and flea count

n

0

n

7

n

14

n

21

n

28

n

35

Control

Arithmetic mean ± SD

8

82.4 ± 8.1

7

79.6 ± 12.7

7

82.7 ± 15.6

6

83.7 ± 7.7

7

85.6 ± 13.5

7

81.6 ± 9.7

Geometric mean

82.0

78.7

81.4

83.4

84.7

81.1

Lotilaner

Arithmetic mean ± SD

8

2.1 ± 3.6

8

1.0 ± 1.4

8

1.9 ± 0.1

8

0.1 ± 0.4

8

1.9 ± 1.5

8

6.9 ± 7.1

Efficacy (%)

97.4

98.7

97.7

99.9

97.8

91.6

Geometric mean

1.0

0.7

1.7

0.1

1.5

4.5

Efficacy (%)

98.8

99.2

97.9

99.9

98.3

94.5

Comparison

 

t(6) = 11.3, P < 0.0001

 

t(5) =17.9, P < 0.0001

 

t(5) = 25.0, P < 0.0001

 

t(4) = 42.7, P < 0.0001

 

t(5) = 15.4, P < 0.0001

 

t(5) = 7.3, P = 0.0008

  1. Abbreviation: SD standard deviation