In addition, rosiglitazone was not genotoxic in a battery of in vivo and in vitro genotoxicity studies and there was no evidence of colon tumours in lifetime studies of rosiglitazone in two rodent species.
Desuden fandtes rosiglitazon ikke gentoxisk i en række af in vivo og in vitro genotoxicitetsstudier, og der var ikke nogen evidens på colontumorer i livstidsstudier af rosiglitazon hos to gnaverarter.