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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In Vivo Evaluation of Lidocaine Bioavailability from Two Topical Patch Products by Pharmacokinetic and Skin (Tape) Stripping Analyses
Shukla, Sagar; Thomas, Sherin; Hammell, Dana; Bunge, Annette; Hassan, Hazem; Stinchcomb, Audra
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Evaluation Of Two Lidocaine Topical Patch 5% Products By Cutaneous Pharmacokinetic Methods: In Vitro Tape Stripping And In Vitro Permeation Testing
Shukla, Sagar; Raney, Sam; Ghosh, Priyanka; Hassan, Hazem; Bunge, Annette; Stinchcomb, Audra
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Evaluation of Level A In Vitro-In Vivo Correlations (IVIVC) for Nicotine and Fentanyl Transdermal Delivery Systems with Transient Heat Exposure by Using Multiple Approaches
Shin, Soohyeon; Yu, Mingming; Thomas, Sherin; Hammell, Dana; Ghosh, Priyanka; Raney, Sam; Hassan, Hazem; Stinchcomb, Audra
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Evaluation Of Flector And Lidoderm Topical Formulations By Dermal Pharmacokinetic Methods: In Vitro Tape Stripping And In Vitro Permeation Testing (Ivpt)
Shukla, Sagar; Hassan, Hazem; Raney, Sam; Newman, Bryan; Ghosh, Priyanka; Bunge, Annette; Stinchcomb, Audra
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Level A In Vitro/In Vivo Correlations (IVIVC) for Nicotine and Fentanyl Transdermal Delivery Systems with Transient Heat Exposure, Evaluated using Multiple Approaches
Shin, Soohyeon; Yu, Mingming; Thomas, Sherin; Hammell, Dana; Hassan, Hazem; Stinchcomb, Audra
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Evaluation of Level A In Vitro In Vivo Correlations (IVIVC) for Nicotine and Fentanyl Transdermal Delivery Systems
Shin, Soohyeon; Yu, Mingming; Thomas, Sherin; Hammell, Dana; Ghosh, Priyanka; Raney, Sam; Hassan, Hazem; Stinchcomb, Audra
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Effect Of Heat On Nicotine And Fentanyl Transdermal Delivery Evaluated In Vitro Using Different Skin/Membranes
Shin, Soohyeon; Ghosh, Priyanka; Raney, Sam; Hammell, Dana; Hassan, Hazem; Stinchcomb, Audra
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In Vitro and In Vivo Evaluation of Three Fentanyl Transdermal Delivery Systems In Conjunction With Transient Heat Exposure
Shin, Soohyeon; Yu, Mingming; Quarterman, Juliana; Hammell, Dana; Hassan, Hazem; Stinchcomb, Audra
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Assessing Bioavailability And Estimating Bioequivalence Of Acyclovir Creams By In Vitro Permeation Tests With Excised Human Skin
Shin, Soohyeon; Raney, Sam; Rantou, Elena; Newman, Bryan; Ghosh, Priyanka; Hassan, Hazem; Stinchcomb, Audra
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In Vitro/In Vivo Correlation (IVIVC) Of Bioavailability from Nicotine Transdermal Drug Delivery Systems under the Influence of Heat
Shin, Soohyeon; Thomas, Sherin; Aballah, Inas; Raney, Sam; Ghosh, Priyanka; Newman, Bryan; Hammell, Dana; Hassan, Hazem; Stinchcomb, Audra