Women with antiphospholipid syndrome and lupus anti-coagulant are at high risk of developing adverse pregnancy outcomes (APO). Usual care includes low molecular weight heparin (LMWH) and low dose aspirin (LDA). Despite these therapies, APO have been reported up to 40%. An important question is whether add-on immunosuppressive therapy could improve APO. Studies in animals suggest that TNF is a critical effector of placental dysfunction and foetal death, thus a logical target.