TABLE 2.
Double‐blind studies | OLEx studies | ||||||
---|---|---|---|---|---|---|---|
Placebo (n = 39) | Perampanel | Perampanel (n = 110) | |||||
2 mg/day (n = 12) | 4 mg/day (n = 9) | 8 mg/day (n = 54) | 12 mg/day (n = 14) | Total (n = 89) | |||
TEAEs, n (%) | 21 (53.8) | 7 (58.3) | 2 (22.2) | 35 (64.8) | 8 (57.1) | 52 (58.4) | 92 (83.6) |
Treatment‐related TEAEs, n (%) | 15 (38.5) | 3 (25.0) | 1 (11.1) | 25 (46.3) | 6 (42.9) | 35 (39.3) | 65 (59.1) |
Serious TEAEs, n (%) | 1 (2.6) | 2 (16.7) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 2 (2.2) | 9 (8.2) |
TEAEs leading to study‐drug withdrawal, n (%) | 0 (0.0) | 1 (8.3) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (1.1) | 8 (7.3) |
Most common (≥4%) TEAEs, n (%) | |||||||
Dizziness | 2 (5.1) | 0 (0.0) | 0 (0.0) | 7 (13.0) | 3 (21.4) | 10 (11.2) | 23 (20.9) |
Pyrexia | 2 (5.1) | 3 (25.0) | 0 (0.0) | 5 (9.3) | 0 (0.0) | 8 (9.0) | 24 (21.8) |
Headache | 3 (7.7) | 2 (16.7) | 0 (0.0) | 5 (9.3) | 1 (7.1) | 8 (9.0) | 15 (13.6) |
Somnolence | 0 (0.0) | 1 (8.3) | 0 (0.0) | 5 (9.3) | 0 (0.0) | 6 (6.7) | 16 (14.5) |
Eosinophilia | 3 (7.7) | 0 (0.0) | 0 (0.0) | 4 (7.4) | 0 (0.0) | 4 (4.5) | 17 (15.5) |
Weight increased | 1 (2.6) | 0 (0.0) | 0 (0.0) | 3 (5.6) | 1 (7.1) | 4 (4.5) | 11 (10.0) |
Convulsion | 3 (7.7) | 0 (0.0) | 0 (0.0) | 1 (1.9) | 0 (0.0) | 1 (1.1) | 11 (10.0) |
Decreased appetite | 1 (2.6) | 0 (0.0) | 0 (0.0) | 1 (1.9) | 2 (14.3) | 3 (3.4) | 7 (6.4) |
Upper respiratory tract infection | 0 (0.0) | 0 (0.0) | 0 (0.0) | 2 (3.7) | 0 (0.0) | 2 (2.2) | 10 (9.1) |
Aggression | 1 (2.6) | 0 (0.0) | 0 (0.0) | 3 (5.6) | 0 (0.0) | 3 (3.4) | 5 (4.5) |
Ataxia | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (1.9) | 0 (0.0) | 1 (1.1) | 10 (9.1) |
Nasopharyngitis | 0 (0.0) | 1 (8.3) | 0 (0.0) | 1 (1.9) | 0 (0.0) | 2 (2.2) | 8 (7.3) |
Nausea | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 2 (14.3) | 2 (2.2) | 6 (5.5) |
Vomiting | 1 (2.6) | 0 (0.0) | 0 (0.0) | 2 (3.7) | 0 (0.0) | 2 (2.2) | 5 (4.5) |
Gamma‐glutamyltransferase increased | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (7.1) | 1 (1.1) | 6 (5.5) |
Balance disorder | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (7.1) | 1 (1.1) | 5 (4.5) |
Fall | 1 (2.6) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 6 (5.5) |
Head injury | 1 (2.6) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 5 (4.5) |
Vertigo | 1 (2.6) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 5 (4.5) |
Abbreviations: AE, adverse event; OLEx, open‐label extension; TEAE, treatment‐emergent adverse event.
A TEAE is defined as an AE with an onset date, or a worsening in severity from baseline, on or after the first dose of study drug up to 30 days following study‐ drug discontinuation. A patient with ≥2 AEs in the same system organ class or with the same preferred term is counted only once for that system organ class or preferred term.