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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Design Considerations for Alternative Bioequivalence Approaches for Generic Orally Inhaled Drug Products
Newman, Bryan
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Designing Alternatives to Comparative Clinical Endpoint and Pharmacodynamic Bioequivalence Studies – Does One Approach Fit All for Generic Orally Inhaled Drug Products?
Newman, Bryan
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Nasal Products: Current Landscape and Recent Advancements
Newman, Bryan
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Overview of Complex Generic Orally Inhaled Drug Products
Newman, Bryan
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Overview of Complex Generic Inhalation and Nasal Drug-Device Combination Products
Newman, Bryan
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Addressing the Challenges with Orally Inhaled and Nasal Drug Products (OINDPs) Through the Pre-ANDA Meeting Process
Newman, Bryan; Dhapare, Sneha; Walenga, Ross; Feng, Kairui
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PSG Recommendations and Updates for OINDPs
Newman, Bryan
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Effect of excipients on the in vitro permeation of drugs from topical products
Murthy, Narasimha
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Role of Excipients in Dermal and Transdermal Delivery of Drugs
Murthy, Narasimha
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Advanced Characterization Approaches for Topical Formulations
Murthy, Narasimha