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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Computational Fluid Dynamics (CFD) Modeling for Product Development of Generic OINDPs and for Supporting Novel BE Approaches
Walenga, Ross
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Impact of Orally Inhaled and Nasal Drug Product PBPK Models on Product Development and Regulatory Decision Making
Walenga, Ross
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In Silico QbD for Dermal Topical Formulations via TCAT Model Simulations
Spires, Jessica
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Bioequivalence Assessment for Complex Ophthalmic Products
Urtti, Arto
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Dual Modality Monitoring of Topical Formulations within Human Skin using Stimulated Raman Scattering (SRS) Microscope
Tu, Dandan; Lemberger, Nick Sidney; Wallmeier, Kristin; Riseman, Jackson; Kuzma, Benjamin A; Wei, Yuxiao; Khoo, Ting Chean; Fallnich, Carsten; Evans, Conor L
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Enhanced Understanding of Structure Performance Relationship Using Modeling and Simulation ��� A Case Study with Dapsone Topical Gel
Tsakalozou, Eleftheria
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Applications of Mechanistic Modeling and Simulation Tools on the Performance of Locally Acting Complex Drug Products
Tsakalozou, Eleftheria
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Mechanistic Modeling and Simulation Approaches for Performance Prediction of Locally Acting Complex Drug Products
Tsakalozou, Eleftheria
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Physiologically-Based Pharmacokinetic Modeling to support Bioequivalence and Drug Approval
Tsakalozou, Eleftheria
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Dermal PBPK Modeling for a Transdermal Delivery System to Assess the Impact of the Application Site on In Vivo Performance
Tsakalozou, Eleftheria