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. 2021 Sep 2;42(3):301–313. doi: 10.1093/asj/sjab329

Table 3.

Summary of AEs in the DBPC Period (Safety Population) and LTA Cycles (LTA Population)

n (%) DBPC period LTA perioda
AboBoNT-A solution 50 U (N = 126) Placebo (N = 64) Cycle 1 (N = 595) Cycle 2 (N = 558) Cycle 3 (N = 486) Cycle 4 (N = 319) Cycle 5 (N = 89)
Any TEAEs 51 (40.5) 24 (37.5) 270 (45.4) 211 (37.8) 162 (33.3) 70 (21.9) 19 (21.3)
Nasopharyngitis 13 (10.3) 8 (12.5) 70 (11.8) 79 (14.2) 53 (10.9) 18 (5.6) 8 (9.0)
Headache 13 (10.3) 4 (6.3) 78 (13.1) 39 (7.0) 27 (5.6) 15 (4.7) 2 (2.2)
Hematoma 5 (4.0) 0 8 (1.3) 2 (0.4) 5 (1.0) 1 (0.3) 1 (1.1)
Pharyngitis 3 (2.4) 0 6 (1.0) 0 0 1 (0.3) 0
Vertigo 3 (2.4) 0 5 (0.8) 1 (0.2) 0 0 0
Back pain 2 (1.6) 1 (1.6) 13 (2.2) 7 (1.3) 4 (0.8) 2 (0.6) 0
Any severe TEAEs 0 1 (1.6) 12 (2.0) 17 (3.0) 9 (1.9) 4 (1.3) 0
Any related TEAEs 15 (11.9) 4 (6.3) 75 (12.6) 34 (6.1) 22 (4.5) 8 (2.5) 4 (4.5)
Headache 5 (4.0) 3 (4.7) 32 (5.4) 16 (2.9) 8 (1.6) 3 (0.9) 0
Hematoma 5 (4.0) 0 7 (1.2) 2 (0.4) 4 (0.8) 0 1 (1.1)
Eyelid edema 2 (1.6) 0 7 (1.2) 3 (0.5) 2 (0.4) 1 (0.3) 1 (1.1)
Eyelid ptosis 0 0 8 (1.3) 4 (0.7) 2 (0.4) 1 (0.3) 0
Any TEAEs leading to withdrawal 0 0 2 (0.3) 2 (0.4) 0 0 0
Any serious AEs 1 (0.8) 2 (3.1) 9 (1.5) 13 (2.3) 5 (1.0) 7 (2.2) 0

AboBoNT-A, abobotulinumtoxinA; AE, adverse event; DBPC, double-blind placebo-controlled; LTA, long-term analysis; TEAE, treatment-emergent adverse event (TEAEs are reported for any events that occurred in ≥2% of patients at any treatment cycle; related TEAEs are reported for any events that occurred in ≥1% of patients at any treatment cycle).

aThis population of 595 patients consisted of 185 patients from the DBPC period (n = 126 treated with aboBoNT-A solution; n = 59 receiving placebo) and 410 additional patients recruited into open-label Cycle 1.