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. 2025 May 31;43(22):2502–2514. doi: 10.1200/JCO-25-00748

TABLE 3.

Treatment-Related Adverse Events Occurring in ≥5% of All the Treated Participants

Adverse Event Lenvatinib + Pembrolizumab + Chemotherapy (n = 441), No. (%) Chemotherapy (n = 429), No. (%)
Any Grade ≥3 Any Grade ≥3
Treatment-related eventsa 430 (97) 288 (65) 394 (92) 208 (48)
 Neutrophil count decreased 203 (46) 105 (24) 194 (45) 97 (23)
 Nausea 171 (39) 10 (2) 173 (40) 5 (1)
 Diarrhea 169 (38) 20 (5) 109 (25) 9 (2)
 Hypertension 140 (32) 49 (11) 0 0
 Decreased appetite 130 (29) 11 (2) 79 (18) 4 (1)
 Hypothyroidism 121 (27) 2 (<1) 0 0
 Platelet count decreased 117 (27) 21 (5) 172 (40) 35 (8)
 Fatigue 103 (23) 14 (3) 61 (14) 6 (1)
 WBC count decreased 102 (23) 15 (3) 89 (21) 14 (3)
 Anemia 101 (23) 17 (4) 109 (25) 25 (6)
 PPES 95 (22) 14 (3) 59 (14) 7 (2)
 Proteinuria 92 (21) 9 (2) 1 (<1) 0
 AST increased 81 (18) 11 (2) 75 (17) 5 (1)
 Vomiting 79 (18) 10 (2) 92 (21) 8 (2)
 ALT increased 70 (16) 16 (4) 57 (13) 5 (1)
 Weight decreased 70 (16) 9 (2) 43 (10) 6 (1)
 Peripheral neuropathy 69 (16) 1 (<1) 100 (23) 13 (3)
 Stomatitis 64 (15) 7 (2) 40 (9) 2 (<1)
 Peripheral sensory neuropathy 54 (12) 2 (<1) 81 (19) 6 (1)
 Asthenia 51 (12) 6 (1) 54 (13) 1 (<1)
 Mucosal inflammation 51 (12) 9 (2) 26 (6) 2 (<1)
 Lipase increased 46 (10) 12 (3) 27 (6) 8 (2)
 Rash 44 (10) 1 (<1) 10 (2) 0
 Pruritus 42 (10) 1 (<1) 6 (1) 0
 Constipation 41 (9) 0 40 (9) 0
 Amylase increased 40 (9) 6 (1) 19 (4) 1 (<1)
 Blood thyroid-stimulating hormone increased 37 (8) 0 2 (<1) 0
 Blood bilirubin increased 35 (8) 6 (1) 32 (7) 6 (1)
 Abdominal pain 32 (7) 3 (1) 19 (4) 3 (1)
 Hyperthyroidism 30 (7) 1 (<1) 4 (1) 0
 Hypokalemia 27 (6) 6 (1) 16 (4) 3 (1)
 Paraesthesia 26 (6) 1 (<1) 36 (8) 3 (1)
 Dysgeusia 25 (6) 0 38 (9) 0
 Blood alkaline phosphatase increased 24 (5) 4 (1) 28 (7) 3 (1)
 Dry mouth 24 (5) 0 5 (1) 0
 Arthralgia 23 (5) 3 (1) 4 (1) 0
 Dysphonia 22 (5) 0 3 (1) 0

Abbreviation: PPES, palmar-plantar erythrodysesthesia syndrome.

a

Treatment-related events with incidence ≥5% in any group. Treatment-related grade 5 events included autoimmune hemolytic anemia, cardiac arrest, myocarditis, gastric hemorrhage (n = 2), gastric perforation (n = 3), gastric ulcer perforation, gastrointestinal hemorrhage, immune-mediated enterocolitis, intestinal ischemia, acute pancreatitis, upper gastrointestinal hemorrhage (n = 3), death, aseptic meningitis, sepsis, urosepsis, pulmonary embolism, intracranial hemorrhage, and malignant neoplasm progression and encephalitis in the lenvatinib plus pembrolizumab and chemotherapy group in one participant each unless otherwise indicated and gastrointestinal hemorrhage and hepatic failure in one participant each in the chemotherapy group.