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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Navigating Formulation Assessments: General Q1/Q2 Inquiries to Supporting Complex Excipient Sameness
Kozak, Darby
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GDUFA��Regulatory��Science��Research on��In��Vitro��Bioequivalence��Methods
Kozak, Darby
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Advantages and Challenges in Implementing New Analytical Methods that Arise from Regulatry Science Initiatives
Kozak, Darby
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Advantages and Challenges in Implementing New Analytical Methods that Arise from Regulatry Science Initiatives
Kozak, Darby
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In Vitro Bioequivalence Testing for Topical Ophthalmic Suspension Products
Kozak, Darby
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Laser and Optical Diagnostics for Characterization of DPIs
Kourmatzis, A
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On the Importance of Liquid Motion in Nasal Spray Delivery
Kolanjiyil, A; Golshahi, L; Longest, W
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Assessment of Fluticasone Propionate/Salmeterol Xinafoate/Lactose Particle Sizes and Co-Associations in Pharmaceutical Dry Powder Inhalation Products: A Photothermal Nanospectroscopic Study
Khanal, Dipesh; Haque, Sheikh Tanzina; Joseph, Blessy; Bielski, Elizabeth; Newman, Bryan; Yilmaz, Huzeyfe; Ahmed, Snober; Boc, Susan; Chan, Hak-Kim; Holl Banaszak, Mark
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Optical Photothermal Infrared Spectroscopic Assessment of Fluticasone/Salmeterol/Lactose Co-Association in Advair Diskus 100/50 and Wixela Inhub 100/50
Khanal, Dipesh; Haque, Sheikh Tanzina; Joseph, Blessy; Bielski, Elizabeth; Newman, Bryan; Yilmaz, Huzeyfe; Ahmed, Snober; Boc, Susan; Chan, Hak Kim; Holl, Mark Banaszak
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Development and Status of Product-Specific Guidances for Topical Products
Kelchen, Megan