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Purpose <p>This article aims to explore the implications of Paragraph IV certification on generic drug market entry while innovators’ patents are still active. It also examines the challenges posed by patent settlements, the BLOCKING Act, and the FDA’s decision-making process regarding generic applications. The objective is to shed light on the complexities of pharmaceutical market dynamics, regulatory practices, and the balance between innovation and accessibility.</p> Methods <p>The study involves a detailed analysis of the USFDA’s recently published Para IV certification list and application statuses from 2020 to 2024. It reviews litigation trends among top generic manufacturers and scrutinizes the impact of patent disputes on market entry. The study also evaluates the potential effects of the BLOCKING Act on the 180-day exclusivity period and generic drug market dynamics.</p> Results <p>The analysis reveals that nearly half of the ANDA applications submitted through Paragraph IV certification are deemed ‘Eligible,’ with significant portions either deferred or extinguished. A peak in eligible ANDA submissions was observed in 2023. Litigation trends show active patent challenges by leading generic companies like Teva, Apotex, and Actavis. The study highlights the FDA’s role in facilitating first ANDA approvals, emphasizing the importance of providing safe and effective generic alternatives.</p> Conclusion <p>The study concludes that while the FDA supports generic companies in their application processes, patent litigation remains a significant hurdle, delaying the availability of cost-effective generic drugs. The BLOCKING Act, if enacted, is likely to disrupt the 180-day exclusivity incentive, reducing the predictability and value of generic drug market entry.</p>

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Unlocking Generic Market Access: A Retrospective Analysis of USFDA Paragraph IV Filings (2020–2024)

  • 期刊论文

  • 发表日期：

    2025年7月14日

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  • Kajal Gandhi,
  • Ramesh Joga,
  • M Sowndharya,
  • Gadekar Kailas Vijay,
  • Sonali Waiker,
  • Sravani Yerram,
  • Rajeev Singh Raghuvanshi,
  • Saurabh Srivastava

摘要

Purpose

This article aims to explore the implications of Paragraph IV certification on generic drug market entry while innovators’ patents are still active. It also examines the challenges posed by patent settlements, the BLOCKING Act, and the FDA’s decision-making process regarding generic applications. The objective is to shed light on the complexities of pharmaceutical market dynamics, regulatory practices, and the balance between innovation and accessibility.

Methods

The study involves a detailed analysis of the USFDA’s recently published Para IV certification list and application statuses from 2020 to 2024. It reviews litigation trends among top generic manufacturers and scrutinizes the impact of patent disputes on market entry. The study also evaluates the potential effects of the BLOCKING Act on the 180-day exclusivity period and generic drug market dynamics.

Results

The analysis reveals that nearly half of the ANDA applications submitted through Paragraph IV certification are deemed ‘Eligible,’ with significant portions either deferred or extinguished. A peak in eligible ANDA submissions was observed in 2023. Litigation trends show active patent challenges by leading generic companies like Teva, Apotex, and Actavis. The study highlights the FDA’s role in facilitating first ANDA approvals, emphasizing the importance of providing safe and effective generic alternatives.

Conclusion

The study concludes that while the FDA supports generic companies in their application processes, patent litigation remains a significant hurdle, delaying the availability of cost-effective generic drugs. The BLOCKING Act, if enacted, is likely to disrupt the 180-day exclusivity incentive, reducing the predictability and value of generic drug market entry.