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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Impact of Formulation and Manufacturing on Drug Delivery from Topical Drug Products Applied to the Skin
Kelchen, Megan; Xie, Lingxiao; Ramezanli, Tannaz; Jiang, Ying; Luke, Markham; Ghosh, Priyanka
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A Hybrid CFD-PBPK Approach to Simulate Deposition, Absorption, and Bioavailability of Corticosteroid Nasal Sprays
Schroeter, Jeffry; Garcia, Guilherme; Rose, Morgan; Kimbell, Julia; Walenga, Ross
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Method for Exploring the Evaporation of pMDI Propellant Droplets with Microsecond Time Resolution
Hardy, Daniel; Legh-Land, Victoria; Haddrell, Allen; Ganley, William; Paul, Aurore; Deraime, Gregoire; Han, Liangfeng; Bielski, Elizabeth; Newman, Bryan; Shur, Jag
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Mechanistic Evaluation of Microstructure and Performance Attributes of Medicated Topical Shampoos
Liyanage, Ishanka; Kelchen, Megan; Ramezanli, Tannaz; Ghosh, Priyanka; Ashraf, Muhammad; Zidan, Ahmed
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Characterization of Spray-dried Phospholipid Porous Particles for Inhalation Drug Delivery
Boc, Susan; Wanasathop, Apipa; Sonju, Jafrin Jobayer; Mohan, Abhinav; Dhapare, Sneha; Bielski, Elizabeth; Newman, Bryan; Ashraf, Muhammad; Xu, Xiaoming; Wang, Yan
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Assessing Q1/Q2 Sameness of Polyethylene Glycol Star Polymers as Polymeric Excipients in Dexamethasone Ophthalmic Inserts
Plavchak, Christine; Smith, William; Vandenberg, Michael; Zaman, Rokon; O’Reilly Beringhs, Andre; Wang, Yan; Xu, Xiaoming
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Enhanced Understanding of Structure Performance Relationship Using Modeling and Simulation- A Case Study with Dapsone Topical Gel
Tsakalozou, Eleftheria; Ramezanli, Tannaz; Raney, Sam G; Zhao, Liang; Luke, Markham C; Ghosh, Priyanka
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Development of an In Vitro Method for In Vivo Prediction of Regional Deposition of Nasal Powders
Holtgrewe, Nicholas; Walenga, Ross; Bielski, Elizabeth; Guo, Changning
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Mechanistic In Vitro Oral Absorption Model to Predict Mucosal Permeability of Oral Cavity Drug Products
Kalra, Priyata; Lukacova, Viera; Dwivedi, Pankaj; Khondoker, Alam; Tsakalozou, E; Pauletti, Giovanni; Zhou, Haiying
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Influence of Quantitative Differences in Propylene Glycol on the Performance of Diclofenac Sodium Topical Gels
Rangappa, S; Phan, K; AL-Smadi, K; Zhu, J; Jiang, Y; Ghosh, P; Ramezanli, T; Raney, SG; Roberts, M; Mohammed, Y; Narasimha Murthy, S