Disclosed herein are methods for treating amyloiddisease in humans by clearing amyloid peptides from one or more bodily fluids such as, e.g., blood, of a patient. In particular, the methods are based on the administration capable of binding to amyloid-beta (Aβ) or on dialysis of blood or plasma exchange in order to remove Aβ peptides from the blood circulation, and / or brain or other affected organs.
Monoclonalantibody 9TL and antibodies derived from 9TL directed against amyloid-beta peptide and methods of using same for diagnosing and treatment of Alzheimer's disease and Aβ peptide associated diseases are described. Methods of using antibodies directed against amyloid-beta peptide having impaired effector function for treatment of Alzheimer's disease and Aβ peptide associated diseases are also described.