Opportunity Information: Apply for RFA FD 21 021
This grant opportunity, titled "Renewal - Elucidating the Sensorial and Functional Characteristics of Compositionally Different and Differently Aged Topical Formulations (U01) Clinical Trial Required," is a U.S. Food and Drug Administration (FDA) cooperative agreement focused on topical semisolid drug products such as creams, ointments, gels, and similar formulations. The central aim is to generate research that clarifies how measurable product quality attributes connect to real-world functional performance, meaning therapeutic behavior and patient-relevant use characteristics. A key theme is that two topical products can look similar on paper, or even deliver the same active ingredient, but still differ in how they feel on the skin and possibly how they perform clinically. The FDA is seeking research that helps translate laboratory characterization into credible predictions about whether a "test" product and a "reference" product will be comparable in ways that matter to patients and, potentially, to therapeutic equivalence.
A major emphasis of the funding opportunity is understanding the relationship between physicochemical and structural properties of semisolid formulations and the sensory experience patients perceive during use. The announcement highlights sensorial attributes such as grittiness, silky-smoothness, and cooling sensation, which are not just cosmetic preferences but can influence adherence and perceived effectiveness. If a product feels gritty, overly greasy, or unexpectedly cooling or warming, patients may apply it differently, use less than prescribed, or stop using it, all of which can affect outcomes. The FDA is therefore interested in research that can rigorously characterize these sensory attributes and link them to underlying formulation features, with the broader objective of predicting patient experience from objective, reproducible measurements.
Another central component is product aging. Topical semisolid products can change over time due to physical instability (for example, phase separation, crystal growth, changes in droplet size distribution), chemical degradation, changes in viscosity or spreadability, or shifts in microstructure. Even subtle aging-related changes can alter how a product spreads, how it deposits on skin, and how it is perceived sensorially. This opportunity supports studies that investigate how aging influences both measurable quality attributes and functional properties, and how those changes might affect comparisons between products that are compositionally different. In other words, the work is aimed at understanding not only "what is the product like when fresh" but also "how does it evolve and does that evolution matter for performance and patient experience."
The project described is positioned to support regulatory science needs around evaluating whether test and reference topical products are likely to be therapeutically equivalent, even when they are not compositionally identical. The language about compositionally different products reflects real challenges in topical drug development and generic competition, where different excipients, manufacturing processes, or microstructures can still potentially yield comparable clinical performance, but only if the critical quality attributes are aligned. By improving the ability to characterize and predict sensorial and functional outcomes, the research could help build a stronger scientific basis for assessing equivalence, reducing uncertainty, and potentially improving the efficiency and confidence of regulatory decision-making for topical semisolid products.
From an administrative standpoint, this is a discretionary funding opportunity offered by the Department of Health and Human Services (HHS), specifically the FDA, using a cooperative agreement mechanism (U01). A cooperative agreement generally means substantial scientific or programmatic involvement from the funding agency compared with a typical grant, so the FDA may collaborate closely on priorities, study design considerations, milestones, or data-sharing expectations. The opportunity is labeled as "Clinical Trial Required," indicating that the supported research is expected to include a clinical trial component as defined by the funding agency, which aligns with the focus on patient sensory experience and functional outcomes.
Key details provided include the funding opportunity number RFA-FD-21-021, with an original close date of March 18, 2021, and a creation date of January 14, 2021. The award ceiling is listed as $500,000, with one expected award, suggesting a single, focused project rather than a broad multi-award program. The activity category is aligned with consumer protection and science and technology research and development, and it is listed under CFDA number 93.103. Eligibility is noted as "Others (see text field entitled Additional Information on Eligibility for clarification)," implying that applicants should consult the full announcement for precise eligibility rules and any special constraints.
Overall, the opportunity is best understood as targeted FDA regulatory science funding intended to strengthen the evidence base for how topical semisolid products should be characterized and compared. It prioritizes practical, patient-centered endpoints like sensory perceptions alongside rigorous physicochemical and structural analyses, with special attention to how products change with age. The expected output is not just descriptive data, but a clearer, predictive understanding of which quality attributes truly govern sensorial and functional performance, and how those attributes can be used to judge comparability between different formulations over the product lifecycle.Apply for RFA FD 21 021
- The Department of Health and Human Services, Food and Drug Administration in the consumer protection, food and nutrition, science and technology and other research and development sector is offering a public funding opportunity titled "Renewal - Elucidating the Sensorial and Functional Characteristics of Compositionally Different and Differently Aged Topical Formulations (U01) Clinical Trial Required" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.103.
- This funding opportunity was created on Jan 14, 2021.
- Applicants must submit their applications by Mar 18, 2021. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- Each selected applicant is eligible to receive up to $500,000.00 in funding.
- The number of recipients for this funding is limited to 1 candidate(s).
- Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
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