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.
-
Mechanistic Model of In Vitro Intraoral Absorption of Buprenorphine for the Buccal and Gingival Mucosa
Kalra, Priyata; Lukacova, Viera; Dwivedi, Pankaj; Alam, Khondoker; Tsakalozou, E; Pauletti, Giovanni; Zhou, Haiying
-
Ethanol Solubility of Rate Controlling Polymer in Modified Release Formulation Can Impact Alcohol Dose Dumping: An Assessment Through Principal Component Analysis
Badge, Shapali; Hossain, Md Nayeem; Boyce, Heather; Kim, Myong-Jin; Al-Ghabeish, Manar
-
Use of High-speed Particle Imaging to Delineate between Different Inhalation Powder Blends
Milton-Mcgurk, L; Mekonnen, TT; Kourmatzis, A; Tai, Waiting; Chan, Hak-Kim; Boc, Susan; Singh, Gajendra; Cheng, Shaokoon
-
Preclinical Evaluation of Brinzolamide Ophthalmic Suspensions with Variations in Critical Quality Attributes and Considerations for Pharmacokinetic and Pharmacodynamic Study Designs
O’Reilly Beringhs, Andre; Naageshwaran, Vatsala; Gum, Glenwood; Malla, Spundana; Vo, Anh; Smith, William; Tan, Ming-Lian; Babiskin, Andrew; Wang, Yan; Xu, Xiaoming; Kozak, Darby
-
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
-
Assessing the Influence of Quantitative Differences in Propylene Glycol on the Performance of Metronidazole Topical Gels
Rangappa, S; Phan, K; AL-Smadi, K; Zhu, J; Jiang, Y; Ghosh, P; Ramezanli, T; Raney, S G; Roberts, M; Mohammed, Y; Narasimha Murthy, S
-
A Clinical Dermal Open Flow Microperfusion Study to Assess Bioequivalence of Topically Applied Diclofenac Products Using Cutaneous Pharmacokinetic Endpoints
Tiffner, K; Ramezanli, Tannaz; Birngruber, T; Bodenlenz, Manfred; Teles, Felipe; Schwagerle, G; Raml, Reingard; Kainz, S; Raney, Sam G.; Sinner, F
-
Stimulated Raman Scattering (SRS) Microscopy and Deep Learning: Novel Pharmacokinetic Approach for Evaluation of Topical Bioequivalence
Iliopoulos, Fotis; Pence, I; Ghosh, Priyanka; Raney, Sam G.; Luke, Markham; Evans, Edith
-
Designing an In Vitro Study to Understand Release of API from the Dispersed Phase of Clobetasol Creams ��� Verification of the Mechanistic Emulsion Model in the MPML MechDermA
Clarke, James; Murthy, Narasimha; Zhang, Yanling; Paterson, Daniel; Dancik, Yuri; Djehizian, Alexandre; Tsakalozou, Eleftheria; Ghosh, Priyanka; Alam, Khondoker; Polak, Sebastian
-
How Comparative Clinical Endpoint Bioequivalence Studies Facilitate the Development of Generic Topical Drug Products
Kelchen, Megan; Xie, Lingxiao; Luke, Markham; Ghosh, Priyanka