5. The effects of bevacizumab on the developing human fetus are unknown. Angiogenesis is of critical importance to fetal development, and bevacizumab is likely to have adverse consequences in terms of fetal development. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 30 days after the last dose.