Table 2.

AE during the 24-week placebo-controlled and 52-week apremilast-exposure periods. Placebo-controlled period includes data through Week 16 for patients initially receiving placebo who escaped, and data through Week 24 for all other patients. Apremilast-exposure period includes all apremilast-exposure data, regardless of when the apremilast exposure started (weeks 0, 16, or 24).

CharacteristicsWeeks 0 to 24Weeks 0 to 52
ApremilastApremilast
Placebo, n =16820 mg BID, n = 16830 mg BID, n = 16820 mg BID, n = 24530 mg BID, n = 245
Patients, n (%)
  ≥ 1 AE81 (48.2)101 (60.1)103 (61.3)164 (66.9)174 (71.0)
  Any serious AE7 (4.2)8 (4.8)9 (5.4)14 (5.7)19 (7.8)
  Any severe AE6 (3.6)8 (4.8)11 (6.5)15 (6.1)15 (6.1)
  AE leading to drug withdrawal8 (4.8)10 (6.0)12 (7.1)16 (6.5)23 (9.4)
  Death0 (0.0)1 (0.6)*0 (0.0)1 (0.4)0 (0.0)
Frequent AE, ≥ 5% in any treatment group, n (%)
  Diarrhea4 (2.4)19 (11.3)32 (19.0)27 (11.0)47 (19.2)
  Nausea11 (6.5)16 (9.5)31 (18.5)24 (9.8)35 (14.3)
  Headache8 (4.8)17 (10.1)18 (10.7)22 (9.0)24 (9.8)
  URTI6 (3.6)10 (6.0)7 (4.2)19 (7.8)14 (5.7)
  Nasopharyngitis5 (3.0)6 (3.6)8 (4.8)17 (6.9)16 (6.5)
Select laboratory assessments
Marked abnormalities, n/m (%)§
  ALT > 150 U/l0/167 (0.0)0/166 (0.0)2/168 (1.2)0/243 (0.0)2/245 (0.8)
  Creatinine, male > 156, female > 126 μmol/l0/167 (0.0)1/166 (0.6)0/168 (0.0)1/243 (0.4)0/245 (0.0)
  Hemoglobin, male: decrease > 2.0 and value < 10.5 g/dl; female: decrease
  > 2.0 and value < 10.0 g/dl0/167 (0.0)0/166 (0.0)1/168 (0.6)0/243 (0.0)2/245 (0.8)
  Leukocytes < 2.0, 109/l0/167 (0.0)0/166 (0.0)0/168 (0.0)0/243 (0.0)0/245 (0.0)
  Neutrophils < 0.75, 109/l0/167 (0.0)0/166 (0.0)0/168 (0.0)0/243 (0.0)0/245 (0.0)
  Platelets < 75, 109/l0/166 (0.0)0/166 (0.0)0/168 (0.0)0/243 (0.0)0/245 (0.0)
Select laboratory shifts from normal to > upper limit of normal, n/m (%)§
  ALT, U/l20/150 (13.3)12/146 (8.2)12/155 (7.7)29/215 (13.5)28/222 (12.6)
  Creatinine, μmol/l3/159 (1.9)7/151 (4.6)10/158 (6.3)14/222 (6.3)16/228 (7.0)
Select laboratory shifts from normal to < lower limit of normal, n/m (%)§
  Leukocytes, 109/l1/155 (0.6)4/155 (2.6)2/159 (1.3)5/227 (2.2)6/232 (2.6)
  Neutrophils, 109/l2/146 (1.4)2/145 (1.4)5/151 (3.3)3/213 (1.4)8/221 (3.6)
  Platelets, 109/l0/146 (0.0)0/142 (0.0)1/151 (0.7)1/208 (0.5)1/221 (0.5)
  Hemoglobin, g/dl8/148 (5.4)7/149 (4.7)14/153 (9.2)22/220 (10.0)26/224 (11.6)
  • * Multiorgan failure considered by investigator to be unrelated to study medication.

  • § Represents patients with ≥ 1 occurrence of the abnormality (n)/patients with a baseline value of normal and ≥ 1 post-baseline value for criteria requiring baseline or with ≥ 1 post-baseline value for criteria requiring baseline (m). AE: adverse event; URTI: upper respiratory tract infection; ALT: alanine transaminase.