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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Development of a Stochastic Individual Path (SIP) Model for Predicting the Deposition of Pharmaceutical Aerosols: Effects of Turbulence, Polydisperse Aerosol Size, and Evaluation of Multiple Lung Lobes
Longest, Worth; Tian, Geng; Delvadia, Renishkumar; Hindle, Michael
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The Impact of Actuation Force on Droplet Size Distribution Spray Duration of Three Commercially Available Nasal Sprays
Schroeter, Jeffry; Kimbell, Julia; Saluja, Bhawana; Delvadia, Renishkumar; Vallorz, Ernest; Sheth, Poonam
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In Vitro and Ex Vivo Correlation of Drug Release from Ophthalmic Ointments
Bao, Quanying; Newman, Bryan; Wang, Yan; Choi, Stephanie; Burgess, Diane
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Regulating Generic Ophthalmologic Drug Bioequivalence���Envisioning Accessibility for Patients
Kozak, Darby
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The Effects of Formulation Factors and Actuator Design on Mometasone Furoate Metered Dose Inhaler In Vitro Aerosolization Performance
Bielski, Elizabeth; Conti, Denise; Oguntimein, Oluwamurewa; Sheth, Poonam; Hallinger, Madeline; Svensson, Marten; Sandell, Dennis; Bulitta, Jurgen; Hochhaus, Guenther
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Application of Mechanistic Ocular Absorption Modeling and Simulation to Understand the Impact of Formulation Properties on Ophthalmic Bioavailability in Rabbits: a Case Study Using Dexamethasone Suspension
Le Merdy, Maxime; Fan, Jianghong; Bolger, Michael; Lukacova, Viera; Spires, Jessica; Tsakalozou, Eleftheria; Patel, Vikram; Xu, Lin; Stewart, Sharron; Chockalingam, Ashok; Narayanasamy, Suresh; Rouse, Rodney; Matta, Murali; Babiskin, Andrew; Kozak, Darby
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Exploring the Relationship Between Suspension and Solution Metered Dose Inhaler Formulation Variables and Predicted Lung Deposition
Schroeter, Jeffry; Sheth, Poonam; Hickey, Anthony; Asgharian, Bahman; Price, Owen; Holt, Jay; Conti, Denise; Saluja, Bhawana
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Recent Advances in Topical Ocular Drug Delivery
Palakurthi, Srinath
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Influence of Formulation Factors on the Aerosol Performance of Suspension and Solution Metered Dose Inhalers: A Systematic Approach
Sheth, Poonam; Sandell, Dennis; Conti, Denise; Holt, Jay; Hickey, Anthony; Saluja, Bhawana
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Fluticasone Pharmacokinetics: Meta-Analysis and Models
Sakagami, Masahiro