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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Formulation Effects of Marketed Oral Cavity Products on In Vitro Buccal Permeability
Dwivedi, Pankaj; Alam, Khondoker; Tsakalozou, Eleftheria; Al Ghabeish, Manar; Pauletti, Giovanni
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Comparison of Generic and Brand Name Dry Powder Inhalers: Advanced Insights Using Optical Photothermal Infrared Microscopy
Haque, Sheikh Tanzina; Joseph, Blessy; Bielski, Elizabeth; Newman, Bryan; Yilmaz, Huzeyfe; Ahmed, Snober; Boc, Susan; Khanal, Dipesh; Chan, Hak-Kim; Holl Banaszak, Mark
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Understanding Critical Quality Attributes of Gelatin Coated Miconazole Nitrate Vaginal Inserts and Suppositories
Chauhan, Anjali; Xie, Lingxiao; Kelchen, Megan; Ghosh, Priyanka; Shen, Jie
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Novel Method for Droplet Size Distribution Measurements from Respimat Inhalers
Chopski, Steven; Hu, Meng; Walenga, Ross; Boc, Susan; Newman, Bryan; Kakhi, Maziar; Zhao, Liang; Guha, Suvajyoti
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Bioequivalence Approaches Utilized in Generic Drug Applications for Topical Drug Products Applied to the Skin
Xie, Lingxiao; Kelchen, Megan; Luke, Markham C; Ghosh, Priyanka
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Comparing the Performance of Metronidazole Topical Gels with Variant Concentrations of Polyethylene Glycol (PEG) 400 in the Formulation
Rangappa, S; Phan, K; AL-Smadi, K; Zhu, J; Jiang, Y; Ghosh, P; Ramezanli, T; Raney, SG; Roberts, M; Mohammed, Y; Narasimha Murthy, S
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Assessment of Drug Permeability Using a Lung Microphysiological System
Geiger, Robert M; Rahman, Shekh; Roni, Md Shadiqur Rashid; Tariq, Isra; Ismaiel, Omnia; Shea, Katherine; Matta, Murali; Ribeiro, Alexandre; Jiang, Wenlei; Walenga, Ross; Newman, Bryan; Ford, Kevin
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Exploring the Influence of Drug Substance Solid-State Properties on the In Vitro Drug Release Performance of Dexamethasone Ophthalmic Ointments
O’Reilly Beringhs, Andre; Mekjarusku, Catheleeya; Qin, Bin; Lu, Xiuling; Wang, Yan
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Assessment of In Vitro Skin Permeation of Ruxolitinib of OPZELURA (Ruxolitinib Phosphate) Topical Cream, EQ 1.5% Base to Support a Demonstration of Bioequivalence
Kamal, Nahid; Ali, Muhammad; Sultana, Tasmin Ara; Srinivasan, Priyanka; Russo, Jackson; Jiang, Ying; Ghosh, Priyanka; Ashraf, Muhammad; Zidan, Ahmed
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Irritation and Sensitization Potential of Approved Topical and Transdermal Delivery Systems ��� A Retrospective Study
Russo, Jackson; Jiang, Ying; Ghosh, Priyanka; Luke, Markham C