Decreased T and B lymphocytes; suppressed T-dependent IgM and IgG antibody responses
“Immunotoxicity assessment revealed the expected pharmacological action of decreased T- and B-lymphocyte counts and an inhibitory effect on primary and secondary T-dependent IgM and IgG antibody responses.”
Radioactivity persisted in hippocampus and uveal tract at final time point; BLQ in all other tissues
“At the final time point, radioactivity was still detected in the hippocampus and uveal tract; radioactivity was BLQ in all other tissues.”
✓ VerifiedFDA pharmacology/toxicology review, p. 37Source ↗
Modality-specific risk
Disproportionate human metabolites (CC112273, CC1084037) insufficiently covered in toxicology studies
“Consequently, clinically relevant exposure levels (AUC0- t/AUC0-24) of CC112273 CC1084037 were not attained at the NOAEL in the toxicology program of ozanimod”