No anti-drug antibodies detected in marmoset or mouse surrogate toxicity studies
“Regarding toxicokinetics, exposure to canakinumab or 01BSUR was demonstrated in each study. With the analysis method used, no anti-drug antibodies were detected.”
Small volume of distribution, low clearance; half-life 4-7 days in marmosets vs 17.4 days rhesus, 14.5 days mice
“Of note, with 4-7 days the elimination half-life of canakinumab in marmosets was shorter than in rhesus monkeys (17.4 days), mice (14.5 days) and humans (26 days).”
Immunosuppression/infection risk from IL-1 blockade, including in utero exposed infants
“Because IL-1 blockade may interfere with immune response to infections, risks and benefits should be considered prior to administering live vaccines to infants who were exposed to ILARIS in utero”
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