NCIt definition : A 6-maleimidocaproyl hydrazone derivative prodrug of the anthracycline antibiotic
doxorubicin (DOXO-EMCH) with antineoplastic activity. Following intravenous administration,
aldoxorubicin binds selectively to the cysteine-34 position of albumin via its maleimide
moiety. Doxorubicin is released from the albumin carrier after cleavage of the acid-sensitive
hydrazone linker within the acidic environment of tumors and, once located intracellularly,
intercalates DNA, inhibits DNA synthesis, and induces apoptosis. Albumin tends to
accumulate in solid tumors as a result of high metabolic turnover, rapid angiogenesis,
hypervasculature, and impaired lymphatic drainage. Because of passive accumulation
within tumors, this agent may improve the therapeutic effects of doxorubicin while
minimizing systemic toxicity.;