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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Transport and Deposition of Beclomethasone Dipropionate Drug Aerosols with Varying Ethanol Concentration in Severe Asthmatic Subjects
Rajaraman, Prathish; Choi, Jiwoong; Babiskin, Andrew; Walenga, Ross; Lin, Chinglong
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In Vitro-In Vivo Correlation of Buprenorphine Transdermal Systems Under Normal and Elevated Skin Temperature
Stinchcomb, A; Thomas, Sherin
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In vitro Performance of Composition-equivalent PLGA Microspheres Encapsulating Exenatide Acetate by Solvent Evaporation
Chandrashekar, Aishwarya; Beig, Avital; Wang, Yan; Schwendeman, Steven
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Drug Release Mechanisms of High-Drug-Load, Melt-Extruded Dexamethasone Intravitreal Implants
Costello, Mark; Liu, Joseph; Chen, Beibei; Wang, Yan; Qin, Bin; Xu, Xiaoming; Li, Qi; Lynd, Nathaniel A; Zhang, Feng
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Product Quality Research for Developing and Assessing Regulatory Submissions for Generic Cyclosporine Ophthalmic Emulsions
Belenos, Avery; Wood, Erin; Hu, Meng; Kozak, Darby; Xu, Xiaoming; Fisher, Adam
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Quantification of Chemical Uptake into the Skin by Vibrational Spectroscopies and Stratum Corneum Sampling
Maciel-Tabosa, MA; Vitry, P; Zarmpi, P; Bunge, AL; Belsey, NA; Tsikritsis, D; Woodman, TJ; Jane White, KA; Begona Delgado-Charro, M; Guy, R H
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Mechanistic Modeling of Ophthalmic, Nasal, Injectable, and Implant Generic Drug Products: a Workshop Summary Report.
Tan, Ming-Liang; Chandran, Sajeev; Jereb, Rebeka; Alam, Khondoker; Bies, Robert; Kozak, Darby; Walenga, Ross; Le Merdy, Maxime; Babiskin, Andrew
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Clinical Ocular Exposure Extrapolation for Ophthalmic Solutions Using PBPK Modeling and Simulation
Le Merdy, Maxime; Alqaraghuli, Farah; Tan, Ming Liang; Walenga, Ross; Babiskin, Andrew; Zhao, Liang; Lukacova, Viera
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The Role of Capsule Aperture Size on the Dispersion of Carrier-based Formulation at Different Air Flowrates
Tang, Patricia; Kakhi, Maziar; Albariqi, Ahmed; Behara, Srinivas; Walenga, Ross; Yang, Runyu; Chan, Hak-Kim
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Sensitivity of Pharmacokinetics to Differences in the Particle Size Distribution for Formulations of Locally Acting Mometasone Furoate Suspension-Based Nasal Sprays
Amini, Elham; Berger, Simon; Schilling, U; Jiao, Y; Chen, M J; Bachhav, Sagar; Baumstein, S; Tang, Y; Al-Humiari, M; Leon Astudillo, C; Drescher, S; Iley, T; Shur, J; Price, R; Carrasco, Cynthia; Conti, Denise; Delvadia, RR; Oguntimein, O; Witzmann, Kim; Absar, M; Luke, Markham; Boc, Susan; Dhapare, S; Saluja, B; Bielski, Elizabeth; Newman, Bryan; Bulitta, J; Hochhaus, G