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Ha Kung Wong: The Biosimilar Manufacturer's Approach to the Patent Dance


Ha Kung Wong, JD, partner at Fitzpatrick, Cella, Harper and Scinto, discusses how manufacturers now approach the "patent dance" in light of Sandoz v Amgen.


Have drug makers decided whether is it better for a biosimilar manufacturer to disclose more information upfront, or to abstain from the "patent dance" entirely?

I don’t think we can say that there has been any one consolidated or consistent decision among biosimilar manufacturers as a whole, as far as whether to engage in the patent dance or how far to proceed into it, as there are so many factors that go into the equation making each situation really unique.

However, we can use the data we have collected for BiologicsHQ to look at what has happened particularly since the Sandoz v Amgendecision last June though. Out of all the complaints filed related to proposed biosimilars of CDER-listed reference products, all but 2 of them have stated that the parties at least began the patent dance.

Only 2 of these complaints alleged that the biosimilar manufacturer refused to participate in the patent dance all together, and 1 of those noted that while the biosimilar manufacturer refused to participate in the patent dance, it did later provide access to its [Abbreviated Biologics License Application, aBLA] pursuant to an agreement, although not the patent dance provisions.

Therefore, we are seeing that overall biosimilar manufacturers, generally speaking, have been choosing to disclose at least some information up front. There have been a number of disputes over providing “other” information besides the aBLA and over how quickly and how completely biosimilar manufacturers have given over their aBLAs though.

In fact while most biosimilar manufacturers are providing their aBLAs, few have been willing to turn over all the “other” information about manufacturing the innovators have requested.

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