Patent 8142784 was granted and assigned to Genentech on March, 2012 by the United States Patent and Trademark Office.
The present invention relates to antibody-drug conjugate compounds of Formula I:Ab-(L-D)p Iwhere one or more maytansinoid drug moieties (D) are covalently linked by L to an antibody (Ab) which binds to an ErbB receptor, or which binds to one or more tumor-associated antigens or cell-surface receptors. These compounds may be used in methods of diagnosis or treatment of cancer, and other diseases and disorders.