Part 2 – Hatch-Waxman and BPCIA Fundamentals: Understanding Follow-On Products and the Rules for Generic Entry

March 19, 2025 3:15pm

Naomi Birbach
Partner
Goodwin Procter LLP

Drugs

  • Overview of Hatch-Waxman and reforms
    • 30-month stay; patent extensions
    • ANDA filer patent challenge and competitive generic therapy 180-day exclusivities
  • Comparing the NDA, 505(b)(2), and ANDA (Abbreviated New Drug Application) drug approval routes and reviewing fundamentals of applications
  • Exploring the ANDA Paragraph IV Certification, and response to Notice Letters
  • Examining ANDA Standards for approval and the concepts of sameness and bioequivalence
  • Special considerations: local acting drugs, labeling carve outs and other nuances
    • Understanding the role of the Orange Book in the drug approval process
    • listings, de-listings and use codes
  • Market exclusivities and protection
  • Identifying the different types of exclusivities
    • Regulatory exclusivity (FDA)/ (data) exclusivity, such as: NCE (new chemical entity); indication (new indication or use); NDF (new dosage formulation); ODE (orphan drug exclusivity); and PED (pediatric exclusivity)

Biologics

  • Overview of biosimilar legislation and regulations, i.e., Biologics Price Competition and Innovation Act of 2009 (BPCIA)
  • Understanding the rationale for safety and efficacy concerns surrounding second generation biologics
  • Exploring the concepts of “biosimilarity” or “interchangeability”
  • FDA rule-making and guidance relative to biosimilars
  • Other points for consideration: substitution, naming, patents, and additional nuances
  • Examining biosimilar exclusivities
  • “Shall we dance” — weighing the pros and cons of participating in the patent dance
  • Deciding when to provide notice of commercial marketing