This study shows that PK data for Asian (South Korean) patients were similar to those in non-Asian patients in a phase 1b/2 pola-BR cohort of patients with R/R DLBCL, with the overlapping distribution of exposure from a Japanese phase 1 study and global phase 1 study of pola monotherapy in B-NHL. The gene discussed is POLA1; the disease is diffuse large B-cell lymphoma.