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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Potential Impact of Gastric pH on Generic Drug Bioequivalence Evaluation
Fan, Jianghong
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PK and PD Tomography: Imaging and Quantifying Skin Pharmacology
Evans, Conor L
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Advanced Techniques for Measuring Cutaneous Pharmacokinetics Using Pharmacokinetic Tomography
Evans, Conor
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Cutaneous Pharmacokinetic and Pharmacodynamic imaging with Coherent Raman Scattering
Evans, Conor
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SRS Pharmacokinetic Tomography
Evans, Conor
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Multiphoton Chemical Imaging to Assess Dermal Pharmacokinetics and Pharmacodynamics
Evans, Conor
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Imaging and Quantifying Topical Drug Uptake in Human Tissue
Evans, Conor
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In Vitro Evaluation of Regional Drug Deposition in Nasal Airways of Children Using Realistic Anatomical Replicas
Esmaeili, A; Hosseini, S; Wilkins, J; Alfaifi, A; Dhapare, S; Walenga, R; Newman, B; Schuman, T; Edwards, D; Longest, W; Hindle, M; Golshahi, L
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Development of a CFD PK Nasal Spray Model with In Vivo Human Subject Validation
Dytta, R; Kolanjiyil, A; Golshahi, L; Longest, W
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Characterizing the time-course of lung absorption via Population Pharmacokinetic Modeling
Drescher, Stephanie