Eiger BioPharmaceuticals, Inc.’s peginterferon lambda, Gilead Sciences, Inc.’s magrolimab, Takeda Pharmaceutical Co. Ltd.’s TAK-994 and Bavarian Nordic A/S’s RSV vaccine are the latest entrants to the small group of products that received breakthrough therapy designations but went on to struggle with clinical failure, changing strategic priorities, and regulatory missteps.
Breakdowns In The Breakthrough Lane: When Recipients Of FDA Expedited Designation Fall Short
Safety signals were the most common cause of discontinued candidates in the breakthrough therapy designation program in 2023.

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Sanofi’s Dupixent, Amgen’s Uplizna, and Bristol’s Opdivo seek new indications, while J&J hopes to start a franchise with nipocalimab and Stealth’s day of reckoning approaches.
March features nearly 20 user fee goal dates, including a crowd of novel candidates for crowded areas like hemophilia, heart disease and urinary tract infections, as well as the potentially first therapies for a rare eye disease and hyperphagia of Prader-Willi syndrome.
The US FDA approval of new meningococcal and chikungunya vaccines arrived in time for the 26-28 February meeting of the CDC’s Advisory Committee On Immunization Practices, if political developments allow.
The US FDA is receiving more requests for regenerative medicine advanced therapy designation and granting more of them, according to recently reported agency data.
More from Regulatory Trackers
The European Medicines Agency is set to issue opinions this week on whether pan-EU marketing approval should be granted to a number of new products.
The US FDA approval of new meningococcal and chikungunya vaccines arrived in time for the 26-28 February meeting of the CDC’s Advisory Committee On Immunization Practices, if political developments allow.
Two investigational products have made it onto the European Medicines Agency’s priority medicines scheme so far this year. Meanwhile, of the 14 products that entered the scheme last year, six were advanced therapies.