Immunosuppression and severe infections from lymphocyte depletion limited achievable exposure margins
“evaluating doses corresponding to a 10-fold exposure margin when compared to the exposure in the MS patients would not be feasible due to immunosuppression and severe infections.”
In vitro whole-blood cytokine release far below alemtuzumab/TGN1412 controls; no effects on monkey TDAR, lymphocyte subsets or serum cytokines; ADA in some monkeys