GDUFA Research Outcomes
Complex Routes of Delivery
The Generic Drug User Fee Amendments (GDUFA) science and research program facilitates patient access to high-quality generic drugs by advancing research in areas where generic product development has been limited or prevented due to knowledge gaps about the kind of evidence needed to demonstrate that a generic product is the same as its brand name reference listed drug product. Leaders and experts across the generic industry collaborate to establish GDUFA research priorities for the most pressing scientific challenges they face with generic product development. Scientists and clinicians from industry, academia, and the U.S. Food and Drug Administration (FDA) strategically design research in these areas so that the outcomes help to build scientific bridges across the knowledge gaps, thereby facilitating pharmaceutical manufacturers to develop generic drugs that were previously challenging or unfeasible to develop.
A major GDUFA science and research priority is to enhance the efficiency of bioequivalence (BE) approaches for complex routes of delivery, such as locally-acting gastrointestinal (GI), buccal, sublingual, inhalation, nasal, ophthalmic, otic, and topical dermatological, vaginal and rectal products. The advancement of research in this area focuses on understanding of how ingredients and other aspects of a formulation influence drug absorption via complex routes of delivery, building in vivo predictive models and identifying corresponding failure modes for BE, to support the development of efficient BE approaches for these products.
Outcomes including scientific publications, presentations, and posters arising from GDUFA-funded research in this priority area are available in this section.
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User Friendly Tools for Population PK and PBPK modeling
Bies, Robert S
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Generic MDI LGWP Propellant Transition: OGD Framework and Data Submission Considerations
Bielski, Elizabeth
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PBPK Modeling Approaches to the Female Reproductive Tract
Bies, Robert
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Recent Updates for the Use of Alternative Approaches for Demonstrating Bioequivalence with OIDPs
Bielski, Elizabeth
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FDA Recommendations for Alternative Bioequivalence Approaches: Design and Rationale for In Vitro and In Vivo Studies
Bielski, Elizabeth; Boc, Susan
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The Current Status and Considerations for Dissolution Testing of Orally Inhaled Drug Products (OIDPs)
Bielski, E
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Loxapine Inhalation Powder: OTR Research Conducted to Inform the PSG Recommendations
Bielski, Elizabeth; Reed, Nathan
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Emerging Concepts and New Technologies for Bioequivalence of Orally Inhaled and Nasal Drug Products
Bielski, Elizabeth
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Considerations and Challenges for Dissolution Testing of Orally Inhaled Drug Products (OIDPs)
Bielski, Elizabeth
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Scientific Careers at FDA: Where Science Meets Regulations and Public Health
Bielski, Elizabeth