The invention relates to a composition comprising exogenous
alpha-fetoprotein, a first compound reversibly bound to exogenous
alpha-fetoprotein in vitro, and an unbound second compound wherein the
first and second compound are anticancer drugs or combinations of
anticancer drugs and wherein the second compound reversibly binds to
recycled exogenous alpha-fetoprotein in vivo. A process for the butanol
extraction of alpha-fetoprotein obtained from porcine blood and amniotic
fluid during early embryogenesis and a process for the in vitro binding
of alpha-fetoprotein and a first compound are also described. The
invention also relates to a method of using these compositions to
prevent, treat or inhibit a malignant neoplasm expressing an
alpha-fetoprotein receptor.