- Not pregnant and not breastfeeding; 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 and for the duration of study participation; patient must have documented negative urine pregnancy test must be resulted within 7 days before initiating protocol therapy; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately; breastfeeding should be discontinued if the mother is treated with triapine; potential risks may also apply to other agents used in this study