Guinea pig EAE (MS model): natalizumab 3 mg/kg s.c. had beneficial effects on active EAE
“The studies in the guinea pig EAE model on the efficacy of natalizumab were performed at 3 mg/kg dose (MAD) administered s.c. on day 7 and 14 days after EAE induction. Natalizumab induced beneficial effects on active EAE, as a model of MS.”
Natalizumab binds guinea pig lymphocytes with affinity similar to human (Kd 0.3 nM); rodents such as rat are non-reactive
“The affinity of AN100226m and AN100226 (the humanized form of the antibody) for guinea pig lymphocytes was very similar to that for human lymphocytes (Kd = 0.3 nM).”