3 I kliniske afprøvninger der involverede over 350 patienter er der ikke observeret induktion af human antimus antistof (HAMA) overfor antistof fragmenter, ej heller har der været nogen øgning af HAMA niveauet hos patienter med eksisterende HAMA.
In clinical trials involving over 350 patients, no induction of human anti-mouse antibody (HAMA) to antibody fragments has been observed nor has there been any elevation of HAMA levels in patients with pre-existing HAMA.