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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Correlation of Physico-Structural (Q3) Properties of Lidocaine/Prilocaine Topical Products with Product Performance In Vitro and In Vivo
Ramezanli, Tannaz; Jiang, Ying; Ghosh, Priyanka; Dabbaghi, Maryam; Tiffner, Katrin; Mohammed, Yousuf; Namjoshi, Sarika; Birngruber, Thomas; Bodenlenz, Manfred; Roberts, Michael; Sinner, Frank; Raney, Sam
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Correlation of Physical and Structural (Q3) Properties of Lidocaine/Prilocaine Topical Products with Product Performance In Vitro and In Vivo
Ramezanli, Tannaz; Jiang, Ying; Dabbaghi, Maryam; Tiffner, Katrin; Mohammed, Yousuf; Namjoshi, Sarika; Birngruber, Thomas; Bodenlenz, Manfred; Raney, Sam; Roberts, Michael; Sinner, Frank
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Developing In Vitro-In Vivo Correlations (IVIVCs) for In Vitro Permeation Test and In Vivo Pharmacokinetic Studies to Evaluate the Effects of Heat on Nicotine Transdermal Delivery Systems
Ramezanli, Tannaz; Ghosh, Priyanka; Zhang, Yi; Luke, Markham; Shin, Soohyeon; Hassan, Hazem; Stinchcomb, Audra; Zhang, Qian; Raney, Sam
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Asymmetric Flow Field Flow Fractionation as an Analytical Tool for the Size Based Separation and Characterization of Complex Ophthalmic Emulsions
Qu, Haiou; Wang, Jiang; Wu, Yong; Zheng, Jiwen; Yellela, Krishnaiah; Absar, Mohammad; Choi, Stephanie; Ashraf, Muhammad; Cruz, Celia; Xu, Xiaoming
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Asymmetical-flow Field Fractionation to Assess the Impact of Manufacturing Process Variables on the Globule Size of Distribution of Cyclosporine Emulsions
Qu, Haiou; Patel, Deval; Kozak, Darby; Walenga, Ross; Choi, Stephanie; Ashraf, Muhammad; Faustino, Patrick; Cruz, Celia; Xu, Xiaoming
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Determination of Globule Size Distribution of Cyclosporine Ophthalmic Emulsions using Asymmetric Flow Field Flow Fractionation
Qu, Haiou; Wang, Jiang; Wu, Yong; Zheng, Jiwen; Yellela, Krishnaiah; Absar, Mohammad; Choi, Stephanie; Ashraf, Muhammad; Cruz, Celia; Xu, Xiaoming
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Drug Particle Characterization Inside Long-Acting Intrauterine Systems with 3D Imaging Analytics
Qin, Yuri; Bao, Quanying; Wang, Yan; Zhu, Aiden; Burgess, Diane; Zhou, Liping; Shawn, Zhang
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Development of an In Vitro Permeation Test to Predict the In Vivo Performance of Naloxone Hydrochloride Nasal Spray Products
Qarterman, Juliana; Al Ghabeish, Manar; Newman, Bryan; Walenga, Ross; Chopski, Steven; Zidan, Ahmed; Pavuluri, Venkateswara; Shakleya, Diaa; Li, Min; Ashraf, Muhammad
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Clinical Ocular Exposure Extrapolation Using PBPK Modeling and Simulation: Gatifloxacin Solution Case Study
Qaraghuli, Farah Al; Tan, Ming Liang; Walenga, Ross; Babiskin, Andrew; Zhao, Liang; Lukacova, Viera; Lemerdy, Maxime
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Predicting Diclofenac Systemic and Synovial Fluid Concentrations after Dermal Application using the Multi-Phase Multi-Layer MechDermA PBPK model
Polak, Sebastian; Patel, Nikunjkumar; Martins, Frederico; Salem, Farzaneh; Jamei, Masoud; Rostami-Hodjegan, Amin