Mersana Therapeutics, Inc. is a biotechnology company that discovers, engineers, and develops antibody drug conjugates to cure various cancers. The company develops immune conjugate therapies to create drugs that enhance patients’ lives. It offers XMT-1522, a drug therapy for tumor models that express relatively low amounts of the HER2 protein; and human anti-HER2 antibody used in XMT-1522. Mersana Therapeutics, Inc. has strategic alliances with Takeda Pharmaceutical Company Limited; Merck Serono; and Asana BioSciences. The company was formerly known as Nanopharma Corp. and changed its name to Mersana Therapeutics, Inc. in November 2005. Mersana Therapeutics, Inc. was founded in 2001 and is based in Cambridge, Massachusetts.