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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Considerations for Pre-ANDA Meeting Requests for Orally Inhaled and Nasal Drug Products
Conti, Denise
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Overview of Complex Generic Inhalation, Nasal and Auto-Injector Drug-Device Combination Products
Conti, Denise
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Emerging Concepts and New Technologies for Bioequivalence of Orally Inhaled and Nasal Drug Products
Conti, Denise
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Current Product-specific Guidances and Common Questions in Pre-ANDA Communications
Conti, Denise
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Emerging Technologies for Bioequivalence of Generic Complex Drug-Device Combination Products
Conti, Denise
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Post-Approval Impact of Generic Fluticasone Propionate & Salmeterol Inhalation Powder
Clerman, Andrew
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Emerging Concepts and New Technologies for Bioequivalence of Orally Inhaled Drug Products
Clerman, Andrew
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Novel Method for Aerodynamic Particle Size Distribution Measurements from Respimat Inhalers
Chopski, Steven; Hu, Meng; Walenga, Ross; Boc, Susan; Newman, Bryan; Kakhi, Maziar; Zhao, Liang; Guha, Suvajyoti
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Physiologically Based Pharmacokinetic Modeling of Naloxone Hydrochloride Nasal Sprays
Chopski, Steven; Al Ghabeish, Manar; Babiskin, Andrew; Zhao, Liang; Walenga, Ross
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Assessment of Effects of Selective Airway Luminal Expansion on Inhaled Particle Deposition in Severe Asthmatic Human Lungs – A Numerical Study
Choi, Jiwoong; Choi, Sanghun; Hoffman, Eric; O’Shaughenessy, Patrick; Castro, Mario; Delvadia, Renishkumar; Walenga, Ross; Babiskin, Andrew; Lin, Ching-Long