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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On the Road to Development of an in Vitro Permeation Test (IVPT) Model to Compare Heat Effects on Transdermal Delivery Systems: Exploratory Studies with Nicotine and Fentanyl
Shin, Soo Hyeon; Ghosh, Priyanka; Newman, Bryan; Hammell, Dana; Raney, Sam; Hassan, Hazem; Stinchcomb, Audra
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A Quasi-3D Wire Approach to Model Pulmonary Airflow in Human Airways
Kannan, Ravishekar; Chen, Zhijian; Singh, Narender; Przekwas, Andrzej; Delvadia, Renishkumar; Tian, Geng; Walenga, Ross
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Statistical Considerations and Impact of the FDA Draft Guidance for Assessing Adhesion with Transdermal Delivery Systems and Topical Patches for ANDAs
Sun, Wanjie; Grosser, Stella; Kim, Carol; Raney, Sam
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Importance of Cloud Motion and Two-way Momentum Coupling in the Transport of Pharmaceutical Nasal Sprays
Kolanjiyil, Arun; Hosseini, Sana; Alfaifi, Ali; Hindle, Michael; Golshahi, Laleh; Longest, Worth
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Anatomically Realistic Nasal Replicas Capturing the Range of Nasal Spray Drug Delivery in Adults
Alfaifi, A; Hosseini, S; Esmaeili, A; Walenga, R; Babiskin, A; Schuman, T; Longest, W; Hindle, M; Golshahi, L
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Particle-based coarse-grained approach for simulating dry powder inhaler
Liu, Xiaoyu; Sulaiman, Mostafa; Kolehmainen, Jari; Ozel, Ali; Sundaresan, Sankaran
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Effects of Device and Formulation on In Vitro Performance of Dry Powder Inhalers
Adams, Wallace; Lee, Sau; Plourde, Robert; Lionberger, Robert; Bertha, Craig; Doub, William; Bovet, Jean Marc; Hickey, Anthony
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Modren Analytics For Synthetically Derived Complex Drug Substances: NMR, AFFF-MALS, and MS Tests For Glatiramer Acetate
Rogstad, Sarah; Pang, Eric; Sommers, Cynthia; Hu, Meng; Jiang, Xiaohui; Keire, David; Boyne II, Michael
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Near-Infrared Spectrometry for the Quantification of Dermal Absorption of Econazole Nitrate and 4-Cyanophenol
Medendorp, Joseph; Yedluri, Jhansi; Hammell, Dana; Ji, Tao; Lodder, Robert; Stinchcomb, Audra
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In Vitro Tests for Aerosol Deposition. IV: Simulating Variations in Human Breath Profiles for Realistic DPI Testing
Delvadia, Renishkumar; Wei, Xiangyin; Longest, Worth; Venitz, Jurgen; Byron, Peter