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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Evaluation of In Vitro/In Vivo Correlations for Three Fentanyl Transdermal Delivery Systems Using In Vitro Skin Permeation Testing and Human Pharmacokinetic Studies under the Influence of Transient Heat Application
Shin, Soo Hyeon; Yu, Mingming; Hammell, Dana; Ghosh, Priyanka; Raney, Sam; Hassan, Hazem; Stinchcomb, Audra
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The Effects of Upper Airway Tissue Motion on Airflow Dynamics
Zhao, Yongling; Raco, Joel; Kourmatzis, Agisilaos; Diasinos, Sammy; Chan, Hak Kim; Yang, Runyu; Cheng, Shaokoon
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Evaluation of heat effects on transdermal nicotine delivery in vitro and in silico using heat-enhanced transport model analysis
La Count, Terri; Zhang, Qian; Murawsky, Michael; Hao, Jinsong; Ghosh, Priyanka; Dave, Kaushalkumar; Raney, Sam; Talattof, Arjang; Kasting, Gerald; Li, Kevin
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Understanding Drug Distribution and Release in Ophthalmic Emulsions through Quantitative Evaluation of Formulation-Associated Variables
Dong, Yixuan; Hengst, Leanna; Hunt, Robert; Patel, Deval; Vo, Anh; Choi, Stephanie; Ashraf, Muhammad; Cruz, Celia; Xu, Xiaoming
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On the Importance of Liquid Motion in Nasal Spray Delivery
Kolanjiyil, AV; Golshahi, L; Longest, P
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Engineering the Properties of Polymer Photonic Crystals with Mesoporous Silicon Templates
Wang, Joanna; Lee, Gha; Kennard, Rhiannon; Barillaro, Giuseppe; Bisiewicz, Rachel; Cortez Lemus, Norma; Cao, Xiaoyu; Anglin, Emily; Park, Jennifer; Potocny, Andrea; Bernhard, Drew; Li, Jianlin; Sailor, Michael
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Multilinear Calibration Of Lattice Boltzmann Pmdi Spray Simulation
Mitran, Sorin; Hickey, Anthony; Holt, Jay
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iBCS: 1. Principles and Framework of an Inhalation-Based Biopharmaceutics Classification System
Hastedt, Jayne; Backman, Per; Cabal, Antonio; Clark, Andy; Ehrhardt, Carsten; Forbes, Ben; Hickey, Anthony; Hochhaus, Gunther; Jiang, Wenlei; Kassinos, Stavros; Kuehl, Philip; Prime, David; Son, Yoen-Ju; Teague, Simon; Tehler, Ulrika; Wylie, Jennifer
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A Fully Validated LC-MSMS Method for Simultaneous Determination of Nicotine its Metabolite Cotinine in Human Serum its Application to a Pharmacokinetic Study after Using Nicotine Transdermal Delivery Systems with Stard Heat Application in Adult Smokers
Abdallaha, Inas; Hammell, Dana; Stinchcomb, Audra; Hassan, Hazem
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Mechanistic Fluid Transport Model to Estimate Gastrointestinal Fluid Volume and Its Dynamic Change over Time
Yu, Alex; Jackson, Trachette; Tsume, Yasuhiro; Koenigsknecht, Mark; Wysocki, Jeffrey; Marciani, Luca; Amidon, Gordon; Frances, Ann; Baker, Jason; Hasler, William; Wen, Bo; Pai, Amit; Sun, Duxin