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 Hygroscopic Particles in Asthmatic Subjects with and without Airway Narrowing
Rajaraman, Prathish; Choi, Jiwoong; Hoffman, Eric; O’shaughnessy, Patrick; Choi, Sanghun; Delvadia, Renishkumar; Babiskin, Andrew; Walenga, Ross; Lin, Chinglong
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Quality by Design Approach for Understanding the Critical Quality Attributes of Cyclosporine Ophthalmic Emulsion
Rahman, Ziyaur; Xu, Xiaoming; Katragadda, Usha; Krishnaiah, Yellela; Yu, Lawrence; Khan, Mansoor
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Validating CFD Predictions of Highly Localized Aerosol Deposition in Airway Models: In Vitro Data and Effects of Surface Properties
Longest, Worth
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Analytical Considerations for Measuring the Globule Size Distribution of Cyclosporine Ophthalmic Emulsions
Petrochenko, Peter; Pavurala, Naresh; Wu, Yong; Wong, Sook Yee; Parhiz, Hamideh; Chen, Kang; Patil, Sharadrao; Qu, Haiou; Buoniconti, Patrick; Muhammad, Absar; Choi, Stephanie; Kozak, Darby; Ashraf, Muhammad; Cruz, Celia; Zheng, Jiwen; Xu, Xiaoming
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Characterization of Temperature Profiles in Skin Transdermal Delivery System When Exposed to Temperature Gradients In Vivo In Vitro
Zhang, Qian; Murawsky, Michael; Lacount, Terri; Hao, Jinsong; Kasting, Gerald; Newman, Bryan; Ghosh, Priyanka; Raney, Sam; Li, Kevin
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Absorption and Clearance of Pharmaceutical Aerosols in the Human Nose: Effects of Nasal Spray Suspension Particle Size and Properties
Rygg, Alex; Hindle, Michael; Longest, Worth
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Effects of Subject-Variability on Nasally Inhaled Drug Deposition, Uptake, and Clearance
Chari, Sriram; Sridhar, Karthik; Kleinstreuer, Clement
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Systematic Evaluation of the Effect of Formulation Variables on In Vitro Performance of Mometasone Furoate Suspension-Metered Dose Inhalers
Bachhav, Sagar; Sheth, Poonam; Sandell, Dennis; Svensson, Marten; Bhagwat, Sharvari; Conti, Denise; Oguntimein, Oluwamurewa; Dhapare, Sneha; Saluja, Bhawana; Winner, Lawrence; Bulitta, Jurgen; Hochhaus, Gunther
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A quasi-3D model of the whole lung: airway extension to the tracheobronchial limit using the constrained constructive optimization and alveolar modeling, using a sac���trumpet model
Kannan, Ravishekar; Singh, Narender; Przekwas, Andrzej; Zhou, Xianlian; Walenga, Ross; Babiskin, Andrew
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A Sensitive UPLC-APCI-MS/MS Method for the Determination of Dexamethasone and its Application in an Ocular Tissue Distribution Study in Rabbits Following Topical Administration
Matta, Murali; Narayanasamy, Suresh; Thomas, Christopher; Xu, Lin; Stewart, Sharron; Chockalingam, Ashok; Patel, Vikram; Rouse, Rodney