Results
A total of 1,681 AE reports associated with capecitabine were included (632 cases in Cohort 1, 816 cases in Cohort 2, 189 cases in Cohort 3, and 44 cases in Cohort 4). The outcomes of AEs were predominantly other medical events, hospitalization or prolonged hospitalization, and death. Gastrointestinal disorders, general disorders and administration site conditions were the most frequently affected SOCs. The most frequent AEs in Cohort 1 were death (n = 83), diarrhea (n = 75), and nausea (n = 73), whereas the strongest signal was palmar-plantar erythrodysaesthesia syndrome (n = 43, ROR = 4.62). In Cohort 2, diarrhoea (n = 160), vomiting (n = 146), and nausea (n = 143) were the most frequently reported AEs, whereas palmar-plantar erythrodysaesthesia syndrome showed the strongest signal (n = 95, ROR = 6.69). In Cohort 3, leukoencephalopathy exhibited the strongest signal (n = 7, ROR = 21.79). In Cohort 4, sleep disorder (n = 5, ROR = 95.98, 95% CI: 33.54-274.69), dry mouth (n = 5, ROR = 35.98, 95% CI: 13.89-93.18), and inappropriate schedule of product administration (n = 5, ROR = 28.78, 95% CI: 11.25-73.59) appeared as novel, robust signals.