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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Evidence from In Vivo Skin Stripping Studies: Utility for Evaluating Topical Bioavailability
Bunge, Annette; Guy, Richard
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Improved Stratum Corneum Sampling In vivo Delivers Obvious Value for Topical Bioequivalence Assessment
Bunge, A
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Feasibility of Predicting Regional Lung Exposure from Systemic Pharmacokinetic (PK) Data of Generic OIDPs via Population PK
Bulitta, J
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Studies to Further Establish PK as Central Tool for a Streamlined Approval of Generic Inhalation Drugs
Bulitta, Jurgen; Hochhaus, Gunther
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Dermal Open-Flow Microperfusion Indicates Differences in Topical Drug Permeation Between Males and Females
Bodenlenz, M
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Developing PBPK for Ocular Delivery
Bolger, Michael
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Complex Nasal Suspension PSGs: Utilization of Newly Recommended In Vitro Only Bioequivalence Option
Boc, Susan
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Considerations for Conducting More Realistic Aerodynamic Particle Size Distribution Testing for Orally Inhaled Drug Products
Boc, Susan
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Alternative BE Approaches and Considerations for Nasal Products
Boc, S
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Product-Specific Considerations for Alternative Bioequivalence (BE) Approaches to Comparative Clinical Endpoint BE Studies
Boc, Susan