B-cell depletion causing immunosuppression (dose-related skin ulceration and early deaths in transgenic mice)
“In the longer duration studies (3 and 6 months) a dose-related increase in skin ulceration was observed and was the reason for multiple early deaths. This finding was considered related to the immunosuppression resulting from the B-cell depletion induced by inebilizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 38Source ↗
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