highly significantp < 0.0001
Post hoc pairwise t tests using CAR-T monotherapy as the reference revealed no significant difference for CAR-T + aPD-L1, a statistically significant reduction for CAR-T + TGF-βi ( p < 0.05), and a highly significant effect for the CAR-T + dual TGF-βi/aPD-L1 ( p < 0.0001).