Abstract: Antibody capable of mediating effector function which specifically binds to a multiple membrane spanning antigen or to an antigen which forms dimers or multimers (i) for use in combination with a cholesterol-increasing agent in the treatment of a disease or disorder associated with said antigen, wherein antibody-induced effector function has a beneficial effect on said disease or disorder or (ii) for use in the treatment of such disease or disorder, wherein the antibody is to be administered to a subject undergoing therapy with a cholesterol-lowering agent, such as a statin, and wherein the subject is withdrawn from treatment with the cholesterol-lowering agent prior to the administration of the antibody. Furthermore, a kit of parts comprising such antibody as well as a cholesterol-increasing agent.