Follow-on Biologics Debate in the US: Innovator Companies Lose Round 2
A much-anticipated Federal Trade Commission (FTC) report was released on Wednesday that will likely help House Energy and Commerce Chairman Henry Waxman bolster support for his fledgling follow-on bio
By on Jun 13, 2009A much-anticipated Federal Trade Commission (FTC) report was released on Wednesday that will likely help House Energy and Commerce Chairman Henry Waxman bolster support for his fledgling follow-on biologics (FOB) bill. For those of you who havent been closely following the debate over proposed legislation to create a regulatory framework for approval of FOBs in the US, I provide a brief synopsis.
The Promoting Innovation and Access to Life-Saving Medicines Act (H.R.1427) introduced by US Representatives Henry Waxman (D-CA), Frank Pallone (D-NJ) and Nathan Deal (R-GA) calls for an abbreviated development pathway (at the discretion of the agency), the possibility of substitution or interchangeability (if the follow-on biologics manufacturer can prove a high degree of structurally similarity and an identical mode of action) and five years of data exclusivity. In contrast, The Pathways for Biosimilar Act (H.R. 1548) introduced by US Representatives Anna Eshoo (D-CA), Jay Inslee (D-WA) and Joe Barton(R-TX) requires clinical data, rigorous immunogenicity testing and limits on interchangeability and substitution provisions for follow-on biologics. Further, it calls for a minimum of 12 or up to 14 years of data exclusivity for innovator companiesa period during which FDA cant rely on innovator data to approve follow-on biologics. For example, if a biotechnology drug was approved in 2009, the earliest that FDA could consider and approve an application for a competing follow-on product is 2021.
The FTC report concluded that a 12- to 14-year wait is unnecessary because follow-on biologics will not be offered at the same steep discounts as traditional generic drugs. It also pointed out that no evidence exists that biologic patents will not hold up. The agency estimates follow-on biologics would be sold at discounts ranging from 10 percent to 30 percent. Not surprisingly, the FTC did not recommend a specific number of exclusivity years. This allows legislators to continue to squabble and debate the point ad nauseum, until concessions are made by both innovator and follow-on biologics proponents.
The measure by Eshoo and Barton has garnered 88 co-sponsors, while Waxman and Deal's bill has 11. In the Senate, the Health, Education, Labor and Pensions Committee reached a bipartisan compromise on follow-on biologics in 2007 that allowed for 12 years of exclusivity, but that deal seems unlikely. Democrats are trying to address generic firms' concerns that brand companies could make slight changes to their products and start the exclusivity period over again. Some senators introduced a more generic-friendly bill like Waxman's earlier this year.
Conventional wisdom suggests that the data exclusivity provisions in the final legislation will be five yearsa period identical to that provided stipulated in the 1984 Hatch Waxman Act, which created the US generic pharmaceutical industry.
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