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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In Vitro – Ex Vivo Correlation of Drug Release from Semisolid Ophthalmic Ointments
Bao, Quanying; Newman, Bryan; Wang, Yan; Choi, Stephanie; Burgess, Diane
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Impact of Excipient Sources on In Vitro Drug Release Characteristics of Semisolid Ophthalmic Ointments
Bao, Quanying; Shen, Jie; Newman, Bryan; Wang, Yan; Choi, Stephanie; Burgess, Diane
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Manufacturing Differences on Physicochemical and In Vitro Release Characteristics of Semisolid Ophthalmic Ointments
Bao, Quanying; Shen, Jie; Newman, Bryan; Wang, Yan; Choi, Stephanie; Burgess, Diane
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Impact of Excipient Sources on In Vitro Drug Release Characteristics of Semisolid Ophthalmic Ointments
Bao, Quanying; Shen, Jie; Newman, Bryan; Wang, Yan; Choi, Stephanie; Burgess, Diane
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Sustained Release Dexamethasone Implants For In-Vitro Vivo Correlations
Bai, Yunpeng; Bourne, David; Wang, Yan; Choi, Stephanie; Kompella, Uday
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In Vitro Deposition of a Nasal Spray Product using Two Realistic Airway Models
Azimi, Mandana; Hindle, Michael; Longest, Worth
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Comparison of the in Vitro Deposition of Nasonex(R) Nasal Spray Product in Two Realistic Nasal Airway Models
Azimi, Mandana; Hindle, Michael; Longest, Worth; Walenga, Ross
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Integrating Drug Product Quality Attributes in a Bottom-Up Physiologically Based Pharmacokinetic (PBPK) Model to Simulate In Vitro Skin Permeation of Acyclovir Commercial Formulations
Arora, Sumit; Polak, Sebastian; Jamei, Masoud; Tsakalozou, Eleftheria; Ghosh, Priyanka; Alam, Khondoker; Liu, Xin; Namjoshi, Sarika; Grice, Jeffrey; Mohammed, Yousuf; Roberts, Michael
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Simulating the Effect of Propylene Glycol on Acyclovir (Zovirax� Cream, 5%) Permeation Across the Skin Using a Physiologically Based Pharmacokinetic (PBPK) Model of In Vitro Flow-through Skin Permeation
Arora, S; Patel, N; Polak, S; Jamei, M; Tsakalozou, E; Ghosh, P; Alam, K; Liu, X; Namjoshi, S; Grice, J; Mohammed, Y; Roberts, M
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Evaluation Of Water Activity (Aw) As A Critical Quality Attribute Of Topical Dosage Forms
Murthy, Narasimha