The companies have commenced the work at CMC Biologics’ Bothell manufacturing facility.
Daiichi Sankyo Biopharmaceutical Technology Research Laboratories vice president Junichi Koga said CMC Biologics is known for its experience and excellent quality.
"Together we have created a responsive working relationship to bring best-in-class biologics to patients in need," Koga added.
The financial terms of the deal have not been disclosed.