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. 2026 Aug 26;17:1844013. doi: 10.3389/fphar.2026.1844013

TABLE 2.

System organ classes (SOCs) for adverse events of different groups.

SOC Trastuzumab Trastuzumab + Lapatinib Trastuzumab + Neratinib Trastuzumab + Tucatinib
Neoplasms benign, malignant and unspecified (incl cysts and polyps) 89 2 2 2
Investigations 63 0 2 6
Cardiac disorders 53 0 0 0
Infections and infestations 30 2 1 6
General disorders and administration site conditions 27 2 4 3
Respiratory, thoracic and mediastinal disorders 27 0 2 2
Skin and subcutaneous tissue disorders 25 12 3 7
Nervous system disorders 23 3 4 9
Injury, poisoning and procedural complications 22 1 5 2
Blood and lymphatic system disorders 19 0 2 2
Hepatobiliary disorders 17 0 1 5
Gastrointestinal disorders 16 7 6 7
Reproductive system and breast disorders 14 0 0 0
Surgical and medical procedures 14 1 0 1
Vascular disorders 14 0 0 0
Musculoskeletal and connective tissue disorders 11 0 0 0
Eye disorders 9 0 1 1
Congenital, familial and genetic disorders 6 0 0 1
Metabolism and nutrition disorders 5 1 3 0
Immune system disorders 2 0 0 0
Renal and urinary disorders 2 0 1 0
Endocrine disorders 1 0 0 2
Pregnancy, puerperium and perinatal conditions 1 0 0 0
Psychiatric disorders 1 0 1 2
Product issues 0 1 0 0
Social circumstances 0 0 0 1