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Table 5 Discontinuation rates 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

 

OLZ LAI (N = 404)

Oral Study 1 (N = 335)

Oral Study 2 (N = 431)

Oral Study 3 (N = 152)

 

PLC (n = 98)

OLZ LAI (n = 306)a

PLC (n = 68)

HAL (n = 68)

OLZ (n = 198)a

1 mg (n = 88)

HAL (n = 81)

OLZ (n = 262)a

PLC (n = 50)

1 mg (n = 52)

OLZ (n = 50)

Discontinued (%)

           

All Causeb

42.9

31.0

67.6

56.5

56.1

44.3

46.9

37.8

80.0

76.9

62.0

Lack of Efficacy

24.5

11.4

47.1

27.5

32.3

18.2

19.8

14.1

74.0

61.5

56.0

Patient Decision

9.2

11.8

2.9

10.1

10.6

9.1

7.4

7.3

5.8

2.0

2.0

Adverse Event

5.1

4.2

10.3

8.7

5.1

11.4

14.8

10.7

0.0

9.6

4.0

Lost at Follow- up

1.0

0.7

1.5

7.2

3.0

1.1

2.5

1.5

4.0

0.0

0.0

  1. a Therapeutic dose groups were pooled
  2. b All-cause percentages also include discontinuations for reasons other than those shown
  3. Abbreviations: 1 mg: 1 mg/day non-therapeutic dose of olanzapine; HAL: haloperidol; OLZ: olanzapine; LAI: long-acting injection; PLC: placebo