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Table 2 Summary of exposure-adjusted incidence rates of treatment-emergent adverse events during the core study and the core study + extension study (safety population)

From: Efficacy and safety during extended treatment of lesinurad in combination with febuxostat in patients with tophaceous gout: CRYSTAL extension study

System organ class

Preferred term [n (exposure-adjusted rate)]

Core study

Core + extension study

200CONT

(n = 64)

(PY = 59.4)

200CROSS

(n = 33)

(PY = 30.6)a

400CONT

(n = 65)

(PY = 60.2)

400CROSS

(n = 34)

(PY = 31.5)a

200CONT

(n = 64)

(PY = 173.6)

200CROSS

(n = 33)

(PY = 61.9)

400CONT

(n = 65)

(PY = 180.6)

400CROSS

(n = 34)

(PY = 61.7)

Any TEAE

54 (90.9)

20 (65.4)

56 (93.0)

29 (92.1)

59 (34.0)

28 (45.2)

62 (34.3)

33 (53.5)

Any serious TEAE

3 (5.1)

1 (3.3)

4 (6.6)

1 (3.2)

11 (6.3)

3 (4.8)

12 (6.6)

5 (8.1)

Any fatal TEAE

0

0

0

0

1 (0.6)

0

0

0

Any renal-related TEAE

4 (6.7)

3 (9.8)

6 (10.0)

0

17 (9.8)

2 (3.2)

17 (9.4)

8 (13.0)

Any serious renal-related TEAE

0

0

0

0

1 (0.6)

0

1 (0.6)

1 (1.6)

Any kidney stone AE

0

0

1 (1.7)

1 (3.2)

3 (1.7)

1 (1.6)

5 (2.8)

2 (3.2)

Any serious kidney stone AE

0

0

0

1 (3.2)

0

0

2 (1.1)

1 (1.6)

sCr elevation 1.5× baseline

3 (5.1)

0

7 (11.6)

2 (6.3)

10 (5.8)

6 (9.7)

18 (10.0)

7 (11.3)

sCr elevation 2.0× baseline

2 (3.4)

0

3 (5.0)

0

6 (3.5)

0

4 (2.2)

4 (6.5)

MACE

0

0

1 (1.7)

0

1 (0.6)

0

2 (1.1)

0

Adjudicated cardiovascular events

3 (5.1)

0

3 (5.0)

0

4 (2.3)

1 (1.6)

4 (2.2)

2 (3.2)

  1. Abbreviations: CONT Continuation of lesinurad treatment, CROSS Crossover from core study placebo to lesinurad treatment, MACE Major adverse cardiovascular event (nonfatal myocardial infraction, nonfatal stroke, cardiovascular death), PY Person-years of lesinurad exposure, sCr Serum creatinine, TEAE Treatment-emergent adverse event
  2. aPY are person-years of placebo (febuxostat) exposure