For­get biosim­i­lars. Pe­ter Bach and Mark Trusheim be­lieve price con­trols are the bet­ter way to rein in bi­o­log­ics prices

The prover­bial so­cial con­tract that drug­mak­ers of­ten cite to de­fend pre­scrip­tion drug prices hinges on the im­age of a patent cliff: Af­ter a pe­ri­od of ex­clu­siv­i­ty that al­lows de­vel­op­ers to re­coup R&D costs, any treat­ment — even those with ex­or­bi­tant price tags — even­tu­al­ly suc­cumb to gener­ic com­pe­ti­tion that in­evitably brings down its cost, if not ren­der it ob­so­lete.

That mod­el has large­ly held true for small mol­e­cule drugs. But out­spo­ken pol­i­cy re­searchers Pe­ter Bach and Mark Trusheim, along with two of Bach’s as­so­ciates at the Memo­r­i­al Sloan Ket­ter­ing Can­cer Cen­ter, are ar­gu­ing that the new gen­er­a­tion of bi­o­log­ics may need an ex­tra push down that cliff, and the force of biosim­i­lars won’t be enough.

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