ABCG2 and Thrombocytopenia: Based on the results, we found that compared with the C allele, the ABCG2 rs2231142 A allele was significantly associated with an increased risk of sunitinib-induced thrombocytopenia in Asians (ES = 1.65, 95% CI = 1.15–2.36, p = 0.006; Figure 2), while there were no significant associations between the A allele and C allele in sunitinib-induced hypertension, HFS, or neutropenia (ES = 1.09, 95% CI = 0.69–1.73, p = 0.701; ES = 1.40, 95% CI = 0.94–2.08, p = 0.094; ES = 0.87, 95% CI = 0.57–1.31, p = 0.501; Figure 2).