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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Breast Cancer Res Treat. 2020 Aug 14;184(1):53–62. doi: 10.1007/s10549-020-05817-w

Table 3.

Treatment-Related Adverse Events Occurring in > 10% of Patients

Dose Escalation Sequential Overall
Cohort 1 Cohort 2 Cohort 3 Cohort 4 Cohort 5 Cohort 6 Cohort 7
Term 3.5 mg/kg Q2W (N=3) 7.0 mg/kg Q2W (N=3) 14.0 mg/kg Q2W (N=5) 3.0 mg/kg Q4W (N=8) 5.0 mg/kg Q4W (N=10) 8.0 mg/kg Q4W (N=9) 8.0 mg/kg Q4W (N=10) All Grade (N=48) Grade 1/2 (N=48) Grade 3/4 (N=48)
Vantictumab-Related AEs
Patients with at least one 2 (66.7%) 2 (66.7%) 3 (60%) 5 (62.5%) 7 (70%) 6 (66.7%) 4 (40%) 29 (60.4%) 24 (50.0%) 5 (10.4%)*
Fatigue 0 0 2 (40%) 3 (37.5%) 1 (10%) 5 (55.6%) 1 (10%) 12 (25%) 12 (25%) 0
Nausea 1 (33.3%) 0 0 3 (37.5%) 2 (20%) 3 (33.3%) 2 (20%) 11 (22.9%) 11 (22.9%) 0
Constipation 1 (33.3%) 1 (33.3%) 2 (40%) 1 (12.5%) 2 (20%) 0 1 (10%) 8 (16.7%) 8 (16.7%) 0
Diarrhea 0 1 (33.3%) 0 4 (50%) 0 0 0 5 (10.4%) 5 (10.4%) 0
Any Study Treatment-Related AEs
Patients with at least one 3 (100%) 3 (100%) 3 (60%) 6 (75%) 10 (100%) 9 (100%) 10 (100%) 44 (91.7%) 25 (52.1%) 19 (39.5%)
Nausea 1 (33.3%) 1 (33.3%) 1 (20%) 6 (75%) 5 (50%) 5 (55.6%) 7 (70%) 26 (54.2%) 25 (52.1%) 1 (2.1%)
Alopecia 1 (33.3%) 2 (66.7%) 2 (40%) 3 (37.5%) 6 (60%) 7 (77.8%) 4 (40%) 25 (52.1%) 24 (50.0%) 1 (2.1%)
Fatigue 1 (33.3%) 0 2 (40%) 4 (50%) 3 (30%) 6 (66.7%) 7 (70%) 23 (47.9%) 23 (47.9%) 0
Neuropathy peripheral 3 (100%) 1 (33.3%) 2 (40%) 2 (25%) 7 (70%) 4 (44.4%) 2 (20%) 21 (43.8%) 18 (37.5%) 3 (6.3%)
Neutropenia 0 2 (66.7%) 1 (20%) 3 (37.5%) 3 (30%) 3 (33.3%) 3 (30%) 15 (31.3%) 5 (10.4%) 10 (20.1%)
Constipation 1 (33.3%) 1 (33.3%) 2 (40%) 2 (25%) 4 (40%) 2 (22.2%) 2 (20%) 14 (29.2%) 14 (29.2%) 0
Anemia 1 (33.3%) 0 1 (20%) 2 (25%) 2 (20%) 3 (33.3%) 3 (30%) 12 (25%) 11 (22.9%) 1 (2.1%)
Diarrhea 2 (66.7%) 1 (33.3%) 0 5 (62.5%) 1 (10%) 0 2 (20%) 11 (22.9%) 11 (22.9%) 0
Myalgia 1 (33.3%) 0 0 1 (12.5%) 4 (40%) 1 (11.1%) 3 (30%) 10 (20.8%) 10 (20.8%) 0
Peripheral sensory neuropathy 0 0 0 1 (12.5%) 0 1 (11.1%) 6 (60%) 8 (16.7%) 7 (14.6%) 1 (2.1%)
Decreased appetite 0 1 (33.3%) 0 2 (25%) 1 (10%) 2 (22.2%) 1 (10%) 7 (14.6%) 7 (14.6%) 0
Dysgeusia 0 0 0 1 (12.5%) 1 (10%) 2 (22.2%) 3 (30%) 7 (14.6%) 7 (14.6%) 0
Gastroesophageal reflux 1 (33.3%) 0 0 2 (25%) 2 (20%) 1 (11.1%) 1 (10%) 7 (14.6%) 7 (14.6%) 0
Rash 0 0 0 1 (12.5%) 12 (20%) 1 (11.1%) 2 (20%) 6 (12.5%) 6 (12.5%) 0
Stomatitis 0 1 (33.3%) 0 2 (25%) 1 (10%) 2 (22.2%) 0 6 (12.5%) 6 (12.5%) 0
Vomiting 0 0 0 2 (25%) 2 (20%) 1 (11.1%) 1 (10%) 6 (12.5%) 5 (10.4%) 1 (2.1%)
Arthralgia 0 0 0 1 (12.5%) 0 1 (11.1%) 3 (30%) 5 (10.4%) 4 (8.3%) 1 (2.1%)
Chills 0 0 0 1 (12.5%) 2 (20%) 0 2 (20%) 5 (10.4%) 5 (10.4%) 0
*

No ≥ grade 4 vantictumab-related AEs were observed