The kinetics of T-cell subsets after iC9-T-cell infusion in patients not treated with AP1903. Counts of circulating CD3⁺ (A), CD4⁺ T cells (B) and CD8⁺ T cells (C) in 8 patients who did not receive AP1903. Black line with filled circle represents CD19⁺ T cells, and gray dashed line with diamond represents CD19⁻ T cells. The number of evaluable patients at each point is 8 (from 0 to month 1), 6 (months 2-4), 4 (months 5 and 6), 2 (month 7), and 1 (month 8, 9, and 12). Data show means ± standard error of mean of patients infused with iC9-T cells.