“…Currently, just eight case reports of individuals developing TLS while receiving treatment with ICIs or co-chemotherapy have been reported in the PubMed database (Masson Regnault et al, 2017;Fa'ak et al, 2019;Carrier et al, 2020;Magara et al, 2020;Narukawa et al, 2020;Shah et al, 2020;Sugimoto et al, 2020;Yen et al, 2020). All cases involved solid tumors-three cases of metastatic melanoma (Masson Regnault et al, 2017;Magara et al, 2020;Sugimoto et al, 2020), three cases of genitourinary malignancies (Fa'ak et al, 2019;Narukawa et al, 2020;Shah et al, 2020), one case of hepatocellular carcinoma (Yen et al, 2020), and one case of metastatic triple-negative breast cancer (Carrier et al, 2020). CTLA-4, cytotoxic T lymphocyte antigen-4; PD-1, programmed death receptor-1; PD-L1, programmed cell death 1 ligand 1; N, number of cases; ROR, reporting odds ratio; CI, confidence interval; PRR, proportional reporting ratio; χ2, chi-squared; IC, information component; IC025, the lower limit of the 95% two-sided CI of the IC; EBGM, empirical Bayesian geometric mean; EB05, the lower 90% one-sided CI of EBGM.…”