Rubio, King Push FDA on Advanced Drug Manufacturing

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Sens. Marco Rubio (R-FL) and Angus King (I-ME) are urging FDA to develop clear regulatory guidelines for advanced manufacturing technologies (AMT) for drugs. In a statement (contains the text of their letter to FDA commissioner Robert Califf), the senators say that with “insufficient levels of domestic pharmaceutical manufacturing, America’s public health and national security are dependent on our foreign adversaries. But the industry needs clear guidance when investing in domestic manufacturing.”

Rubio and King say that advanced manufacturing technologies, such as continuous manufacturing sites, provide a promising pathway to lower the cost of domestic drug manufacturing and accelerate the return to the U.S. of key active pharmaceutical ingredient production. “Yet,” they continue, “FDA has not yet invested sufficient resources toward developing clear regulatory guidelines for these innovative manufacturing tools. FDA must quickly finalize and implement the AMT Designation Program, as directed by Congress, to provide companies regulatory clarity as they evaluate whether to invest and seek approval of AMTs for their products.”

The senators ask for answers to these questions:

  • the strategies FDA has implemented to encourage greater investment by domestic drug manufacturers into AMTs;
  • how the agency is ensuring that the AMT Designation Program will benefit more domestic manufacturing facilities than foreign-based facilities;
  • the ratio of domestic to foreign-based applications in the current application pool for AMTs seeking approval through current active pathways;
  • whether FDA has received any new continuous manufacturing applications for generics, especially for those with domestic shortages;
  • how FDA is communicating about the AMT Designation Program to eligible entities and the public;
  • how FDA is ensuring timely approval of continuous manufacturing technologies;
  • whether FDA has seen continued growth in the number of approved continuous manufacturing products since 2022; and
  • the implementation status of the AMT Designation Program, including implementation progress since a draft guidance was issued, and whether the program has accepted any designation requests for new technologies.

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