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.
-
IVRT Method Development, Validation, and Transfer Theoretical Principles and Practical Challenges
Ramezanli, Tannaz
-
In Vivo Dermal Microperfusion & Microdialysis Bioequivalence Approaches
Ramezanli, Tannaz
-
Best Practices & Efficient Strategies for Generic Topical Product Development
Ramezanli, Tannaz
-
How to Structure Efficient Development Programs for Generic Topical Drug Products
Ramezanli, Tannaz
-
Bioquivalence of Topical Products Scientific Consideration
Ramezanli, Tannaz
-
Topical Dermatological Drug Products Complex Generic Drug Products (CGDPs) with a locally-acting route of delivery
Ramezanli, Tannaz; Simamora, Pahala; Babiskin, Andrew; Luke, Markham
-
Product Development Considerations for Transdermal/Topical Delivery Systems
Ramezanli, Tannaz
-
Regulatory Uses of IVRT Studies on Complex Generic Ophthalmic, Injectable, Implantable, and Inserted Products
Qin, Bin
-
PBPK Modeling of Transdermal Selegiline Disposition Discrepancy in Special Populations
Puttrevu, Santosh Kumar
-
Dissolution and Beyond: The Use of Advanced Structural Characterization Tool for Demonstrating Pharmaceutical Equivalence of Orally Inhaled Drug Products
Price, Robert