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Table 2 Most frequent TEAEs in ≥5% of the safety population of any treatment groups a

From: Effect of prior exposure to dopamine agonists on treatment with gabapentin enacarbil in adults with moderate-to-severe primary restless legs syndrome: pooled analyses from 3 randomized trials

Adverse event, n (%)

DA-naive

DA-exposed

Placebo (n = 195)

GEn 600 mg (n = 133)

GEn 1200 mg (n = 217)

Placebo (n = 50)

GEn 600 mg (n = 30)

GEn 1200 mg (n = 52)

Any event

149 (76)

105 (79)

187 (86)

34 (68)

27 (90)

40 (77)

Somnolence

12 (6)

25 (19)

54 (25)

0

7 (23)

7 (14)

Dizziness

9 (5)

20 (15)

44 (20)

2 (4)

2 (7)

15 (29)

Headache

22 (11)

12 (9)

36 (17)

5 (10)

7 (23)

4 (8)

Nasopharyngitis

10 (5)

13 (10)

17 (8)

6 (12)

1 (3)

4 (8)

Nausea

8 (4)

5 (4)

15 (7)

4 (8)

4 (13)

4 (8)

Fatigue

10 (5)

5 (4)

15 (7)

1 (2)

3 (10)

3 (6)

Diarrhea

10 (5)

3 (2)

7 (3)

2 (4)

3 (10)

3 (6)

Upper respiratory tract infection

7 (4)

6 (5)

5 (2)

2 (4)

3 (10)

1 (2)

Dry mouth

4 (2)

4 (3)

11 (5)

1 (2)

1 (3)

1 (2)

Constipation

6 (3)

0

7 (3)

2 (4)

3 (10)

3 (6)

Insomnia

6 (3)

7 (5)

4 (2)

1 (2)

1 (3)

2 (4)

Irritability

3 (2)

2 (2)

8 (4)

0

4 (13)

3 (6)

Back pain

6 (3)

4 (3)

6 (3)

1 (2)

2 (7)

1 (2)

Sinusitis

5 (3)

2 (2)

6 (3)

1 (2)

3 (10)

1 (2)

Increased weight

3 (2)

2 (2)

7 (3)

2 (4)

2 (7)

2 (4)

  1. aAdditional AEs reported in ≥5% of the safety population (at an overall frequency lower than those shown in the table) were: flatulence, contusion, abnormal coordination, toothache, increased appetite, urinary tract infection, depression, viral gastroenteritis, neck pain.
  2. DA, dopamine agonist; GEn, gabapentin enacarbil; TEAE, treatment-emergent adverse events.