3. Women of childbearing potential (WOCBP), expected to be using an acceptable method of contraception (sexual abstinence, implants, IUD, injectables, vasectomised partner or association of condom + spermicide, diaphragm + spermicide, diaphragm + condom) for a period of at least 1 month before and after dose administration. WOCBP were expected to have a negative pregnancy test (serum beta-human chorionic gonadotropin [β-HCG]) result within 48 hours before the start of the first IMP administration. Hormonal contraceptives were not allowed because the effect of BIA 9-1067 on the metabolism of oral contraceptives and vice versa is not yet known,