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Table 4 Olanzapine plasma concentrations at study endpoint for the olanzapine long-acting injection and olanzapine oral studies

From: Efficacy of olanzapine long-acting injection in patients with acutely exacerbated schizophrenia: an insight from effect size comparison with historical oral data

Study and Treatment

n

Mean at endpoint (ng/mL)

SD

Minimum

Maximum

OLZ LAI Study

     

405 mg/4 weeks olanzapine LAI

39

13.4

7.8

5.9

56.0

210 mg/2 weeks olanzapine LAI

55

18.3

9.4

5.5

44.7

300 mg/2 weeks olanzapine LAI

56

24.3

11.6

9.3

87.6

Oral Study 1

     

5 ± 2.5 mg/day olanzapine

63

10.3

8.0

0.4

36.9

10 ± 2.5 mg/day olanzapine

62

18.4

12.1

0.4

63.2

15 ± 2.5 mg/day olanzapine

63

30.6

22.7

0.5

108.1

Oral Study 2

     

1 mg/day olanzapine

75

1.7

1.9

0.3

16.0

5 ± 2.5 mg/day olanzapine

78

9.1

5.9

0.5

37.0

10 ± 2.5 mg/day olanzapine

76

16.8

11.5

0.3

64.3

15 ± 2.5 mg/day olanzapine

75

26.9

19.2

1.2

99.8

Oral Study 3

     

1 mg/day olanzapine

51

1.5

0.8

0.0

3.2

10 mg/day olanzapine

48

20.7

17.1

0.3

93.0

  1. Abbreviations: n: number of patients with evaluable samples; OLZ LAI: olanzapine long-acting injection; SD: standard deviation