<qa>  What is the effect of G-2535 on the developing human fetus at the- Women may not be pregnant or lactating; the effects of G-2535 on the developing human fetus at the recommended therapeutic dose are unknown; for this reason women of childbearing 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; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately 