Fig. 1

Patient flow through the study. ^aReasons for screening failures: three patients tested positive for Hepatitis B core antibody, two patients did not meet inclusion criteria number 1 (histologically documented CD20⁺ malignant disease), one patient did not meet inclusion criteria number 2 (relapsed/refractory CLL, FL, or DLBCL), one patient had positive hepatitis serology, and one patient had a hemoglobin value of 56 g/L. ^bReasons for discontinuation during treatment: AE (pneumonia), n = 1; PD, n = 9; protocol violation, n = 1; withdrawal by the patient, n = 3; physician decision, n = 6. ^cReasons for discontinuation during follow-up: death, n = 2; withdrawal by the patient, n = 4; PD, n = 1; physician decision, n = 2; other, n = 2 (patient could not visit due to poor physical condition, progression of disease confirmed in another hospital). CLL chronic lymphocytic leukemia, DLBCL diffuse large B-cell lymphoma, FL follicular lymphoma