- Patients must be able to provide written informed consent. Patients with the potential for pregnancy or impregnating their partner must agree to follow acceptable birth control methods (described in detail under thalidomide drug information section) to avoid conception. Women of child-bearing potential must have a negative pregnancy test prior to treatment on this protocol. Men taking thalidomide must agree to use latex condoms every time they have sex with women since it has been shown that thalidomide is found in semen. All patients must agree to participate in the S.T.E.P.S.® program (System for Thalidomide Education and Prescribing Safety). All patients must be educated under the requirements of the S.T.E.P.S.® program. Patients are required to complete a S.T.E.P.S.® survey and sign and additional consent form indicating that they understand all information provided to them as part of the S.T.E.P.S.® educational counseling.