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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The Influence of Secondary Processing on the Structural Relaxation Dynamics of Fluticasone Propionate
Depasquale, Roberto; Lee, Sau; Saluja, Bhawana; Shur, Jagdeep; Price, Robert
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Investigating the Microstructure of Breo� Ellipta� Using Orthogonal Analytical Approaches
Farias, Goncalo; Penas, Abel Gracia; Pinto, Sara; Silva, Lucas; Price, Robert; Shur, Jagdeep
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Computational Analysis of a 3D Mucociliary Clearance Model Predicting Nasal Drug Uptake
Chari, Sriram; Sridhar, Karthik; Walenga, Ross; Kleinstreuer, Clement
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Identification of Non-Reported Bupropion Metabolites in Human Plasma
Connarn, Jamie; Luo, Ruijuan; Windak, Jim; Zhang, Xinyuan; Babiskin, Andrew; Kelly, Marisa; Harrington, Gloria; Ellingrod, Vicki; Kamali, Masoud; Mcinnis, Melvin; Sun, Duxin
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Scientific and Regulatory Activities Initiated by the U.S. Food and Drug Administration to Foster Approvals of Generic Dry Powder Inhalers: Bioequivalence Perspective
Newman, Bryan; Babiskin, Andrew; Bielski, Elizabeth; Boc, Susan; Dhapare, Sneha; Fang, Lanyan; Feibus, Karen; Kaviratna, Anubhav; Li, Bing V; Luke, Markham; Ma, Tian; Walenga, Ross; Wang, Zhong; Zhao, Liang; El-Gendy, Nashwa; Bertha, Craig; El-Shafy, Mohammed; Gaglani, Dhaval
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Analytical Method Development for Characterizing Ingredient-Specific Particle Size Distributions of Nasal Spray Suspension Productsset facetvaluestring
Thomas, Brandon; Absar, Mohammad; Delvadia, Renishkumar; Conti, Denise; Witzmann, Kimberly; Guo, Changning
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LC-MS/MS method for simultaneous quantification of dexamethasone and tobramycin in rabbit ocular biofluids
Meng, Tuo; Kosmider, Leon; Chai, Guihong; Raynold, Aji Alex Moothedathu; Pearcy, Adam; Qin, Bin; Wang, Yan; Lu, Xiuling; Halquist, Matthew; Xu, Qingguo
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Bioequivalence Testing: Can Systemic Pharmacokinetic Profiles from Corticosteroid Nasal Sprays be Used to Elucidate Local Drug Deposition within the Nose?
Longest, Worth; Rygg, Alex; Hindle, Michael
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Effect of Particle Size and Viscosity of Suspensions on Topical Ocular Bioavailability of Budesonide, a Corticosteroid
Vooturi, Sunil; Bourne, David; Jyoti Panda, Jiban; Choi, Stephanie; Kim, Hyewon; Yandrapu, Sarath; Kompella, Uday
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Development and Validation of an Ion Chromatography Method for the Determination of Phosphate-Binding of Lanthanum Carbonate
Samy, Raghu; Faustino, Patrick; Adams, Wallace; Yu, Lawrence; Khan, Mansoor; Yang, Yongsheng