Tuvonralimab (PSB-205; QL1706) is a dual immune checkpoint blockade containing a mixture of anti-PD-1 IgG4 and anti-CTLA-4 IgG1 antibodies, Iparomlimab and Tuvonralimab[1].
References
[1] Ian Wilkinson, et al. Systematic analysis of the varied designs of 819 therapeutic antibodies and Fc fusion proteins assigned international nonproprietary names. MAbs. 2022 Jan-Dec;14(1):2123299. DOI:10.1080/19420862.2022.2123299