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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Dexamethasone Degradation During In Vitro Release From An Intravitreal Implant
Matter, Brock; Ghaffari, Alireza; Bourne, David; Wang, Yan; Choi, Stephanie; Kompella, Uday
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Multi-phase Multi-layer MechDermA model: Development, Verification and Application of a PBPK-PD Model of Dermal Absorption for Transdermal Product Assessment
Martins, Frederico; Patel, Nikunjkumar; Salem, Farzaneh; Jamei, Masoud; Polak, Sebastian
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Mechanistic Physiologically-Based Pharmacokinetic Modelling for Prediction of Dermal Absorption in Psoriatic Patients
Martins, Frederico; Patel, Nikunjkumar; Jamei, Masoud; Polak, Sebastian
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Multi-phase Multi-layer MechDermA model: Development, Verification and Application of a PBPK-PD Model of Dermal Absorption for Transdermal Product Assessment
Polak, Sebastian; Patel, Nikunjkumar; Martins, Frederico; Salem, Farzaneh; Jamei, Masoud; Rostami-Hodjegan, Amin
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Development And Validation Of Dermal Pbpk Model Towards Virtual Bioequivalence Assessment: Prediction Of Dermal Drug Absorption Of Various Ibuprofen Formulations Using Simcyp MechdermA model
Martins, Frederico; Patel, Nikunjkumar; Cristea, Sinziana; Polak, Sebastian
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In Vitro Investigation of Regional Nasal Drug Delivery using Two Glucocorticoid Nasal Spray Products and Twenty Anatomical Nasal Replicas
Manniello, Michele; Hosseini, Sana; Hindle, Michael; Schuman, Theodore; Longest, Worth; Sandell, Dennis; Golshahi, Laleh
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Microstructural Mapping of Dry Powder Inhalers (DPIs) Using Morphologically Directed Raman Spectroscopy (MDRS): A Novel Analytical Tool for DPI Characterization
Mangal, Sharad; Conti, Denise; Delvadia, Renishkumar; Oguntimein, Oluwamurewa; Shur, Jagdeep; Price, Robert
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Raman Spectroscopic Assessment of Topical Drug Bioavailability in the Skin
Maciel Tabosa, M M; Vitry, P; Belsey, N A; Tsikritsis, D; Woodman, T J; Woodman, T J; bBunge, A L; Charro, Delgado; Guy, R H
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Microstructural Mapping of Dry Powder Inhalers (DPIs) Using Morphologically Directed Raman Spectroscopy (MDRS): A Novel Analytical Tool for DPI Characterization
Mangal, Sharad; Conti, Denise; Delvadia, Renishkumar; Oguntimein, Oluwamurewa; Shur, Jagdeep; Price, Robert
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Micro-imaging and Microanalysis of PLGA Complex Drug Products by Scanning Electron Microscopy (SEM)
Liang, Jing; Wang, Yan; Qin, Bin; Zhou, Jia; Schwendeman, Steven; Zheng, Jiwen