Disse virkninger omfattede bilateral degeneration af epitel i tubuli seminiferi med retention af spermatider og atrofi af interstitielle celler hos rotter ved meget høje eksponeringsniveauer af clofarabin (150 mg/ m2/ dag), og celledegeneration i epididymis samt degeneration af epitel i tubuli seminiferi hos hunde ved klinisk relevant eksponeringsniveauer (> 7, 5 mg/ m2/ dag).
These effects included bilateral degeneration of the seminiferous epithelium with retained spermatids and atrophy of interstitial cells in rats at exaggerated exposure levels (150 mg/ m2/ day), and cell degeneration of the epididymis and degeneration of the seminiferous epithelium in dogs at clinically relevant exposure levels (> 7.5 mg/ m2/ day clofarabine).