NCIt definition : A synthetic mustard compound with potential antineoplastic activity. An active metabolite
of ifosfamide covalently linked to the amino acid lysine for stability, palifosfamide
irreversibly alkylates and cross-links DNA through GC base pairs, resulting in irreparable
7-atom inter-strand cross-links; inhibition of DNA replication and cell death follow.
Unlike ifosfamide, this agent is not metabolized to acrolein or chloroacetaldehyde,
metabolites associated with bladder and CNS toxicities. In addition, because palifosfamide
does not require activation by aldehyde dehydrogenase, it may overcome the tumor resistance
seen with ifosfamide.;