The number of new prescriptions written for biosimilar versions of the Humira rheumatoid arthritis treatment, one of the best-selling medicines in the U.S., surged to 36% from just 5% during the first week of April, thanks to the expanding reach that CVS Health has over the prescription drug market.
The big jump was attributed to one particular biosimilar called Hyrimoz, which is manufactured by Sandoz, a former unit of Novartis that is a leading supplier of generic and biosimilar medicines. However, Hyrimoz is jointly marketed with Cordavis, a new subsidiary that CVS created last August specifically to sell any number of biosimilar medicines in the U.S.
This connection is crucial to the sudden jump in Hyrimoz prescriptions. How so? On April 1, CVS Caremark, which is one of the largest pharmacy benefit managers in the U.S., removed Humira from its major national formularies for health plans that cover about 30 million lives. Then, Hyrimoz was added to the formularies, which are the lists of medicines that are covered by health insurance.
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