On Oct. 15, the U.S. Food & Drug Administration (FDA) approved the first interchangeable biosimilar product to treat certain inflammatory diseases. Cyltezo (adalimumab-adbm), originally approved in August 2017, is both biosimilar to and interchangeable with (i.e, may be substituted for) its reference product Humira (adalimumab) for Cyltezo’s approved uses. Cyltezo is the second interchangeable biosimilar…