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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Predicting, Measuring, and Optimising Drug Delivery to the Skin
Guy, Richard
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Analytical Method Development for Ingredient-Specific Particle Sizing of Nasal Spray Suspensions
Guo, Changning
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Considerations for FEV1-based Comparative Clinical Endpoint or Pharmacodynamic Bioequivalence Studies for Orally Inhaled Drug Products
Gong, Yuqing
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Alternative Model-Based Data Analysis Approach to Demonstrate Bioequivalence
Gong, Yuqing
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Leveraging In Vitro Bioequivalence Tests for Locally-Acting Suspension Nasal Sprays with Three Anatomically-Correct Replicas of Human Nasal Airways Representing Intersubject Variability
Golshahi, L; Alfaifi, A; Hosseini, S; Esmaeili, A; Hindle, M; Longest, W; Schuman T
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Pathways to Establish Bioequivalence and Facilitate Development of Innovative and Generic Intranasal Drug Delivery Products: In vitro Anatomically Correct Nasal Models
Golshahi, Laleh
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In Vitro Bioequivalence Testing of Nasal Sprays Using Multiple AnatomicallyCorrect Nasal Airway Models
Golshahi, L; Manniello, M; Hosseini, S; Alfaifi, A; Schuman, T; Hindle, M; Longest, W; Sandell, D
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Analysis of ANDA Approval and Major Deficiencies – A Case Study with Topical Products
Ghosh, Priyanka
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Role of Regulatory Science Research Topical Product Development
Ghosh, Priyanka
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Impact of GDUFA Regulatory Science and Research Program on Topical Product Availability
Ghosh, Priyanka