Biologic Factors Underlying Dental, Oral, and Craniofacial Health Disparities (R21 - Clinical Trial Not Allowed) | PA 18 874

Opportunity Information: Apply for PA 18 874

The National Institutes of Health (NIH) funding opportunity PA 18 874, titled "Biologic Factors Underlying Dental, Oral, and Craniofacial Health Disparities (R21 - Clinical Trial Not Allowed)," supports early-stage, exploratory research aimed at clarifying how biology contributes to persistent oral health disparities. The central idea is that major differences in dental, oral, and craniofacial (DOC) disease burden across racial and ethnic groups are not explained by social, behavioral, or environmental factors alone. The FOA is designed to push the field toward a more complete understanding of biologic mechanisms that may influence why certain populations experience higher prevalence, greater severity, longer persistence, or faster progression of specific DOC conditions.

This opportunity focuses on diseases and conditions where disparities have been well documented, including oral and oropharyngeal cancers, early childhood caries (ECC), dental caries, and periodontitis. NIH is specifically encouraging projects that dig into the underlying biologic pathways that could help explain population-level differences in outcomes. The motivation is practical as well as scientific: when the biologic drivers are not well understood, it becomes much harder to design effective, targeted prevention strategies and treatments for the communities experiencing the greatest need. In other words, these projects are intended to generate the kinds of early, hypothesis-building results that can later support more definitive research programs and, ultimately, more tailored interventions.

The FOA uses the R21 mechanism, which is typically meant for exploratory and developmental work rather than large, long-term studies. It explicitly states that clinical trials are not allowed under this announcement, meaning the supported research should not be structured as an interventional clinical trial testing a treatment or preventive strategy in human participants. Instead, the emphasis is on foundational and mechanistic research that can reveal biologic factors associated with disparities, such as differences in susceptibility, host response, disease progression, or other biologic contributors that intersect with population characteristics.

In terms of funding details, the listed award ceiling is $200,000. The opportunity is categorized as a discretionary grant within the NIH health research portfolio and is associated with CFDA numbers 93.121 and 93.307. The original closing date provided in the source information is 2021-09-07, and the FOA creation date is 2018-07-25, which signals that the announcement reflects a specific application window and applicants would need to verify current availability or any reissued versions if pursuing a similar opportunity now.

Eligibility is broad and includes many types of U.S.-based organizations and government entities. Eligible applicants include state, county, city, and special district governments; independent school districts; public and state-controlled institutions of higher education; private institutions of higher education; federally recognized Native American tribal governments; tribal organizations that are not federally recognized; public housing authorities and Indian housing authorities; nonprofits with and without 501(c)(3) status; for-profit organizations other than small businesses; and small businesses. The FOA also highlights additional eligible applicant types such as Alaska Native and Native Hawaiian Serving Institutions, Asian American Native American Pacific Islander Serving Institutions (AANAPISISs), Hispanic-serving Institutions, Historically Black Colleges and Universities (HBCUs), Tribally Controlled Colleges and Universities (TCCUs), faith-based or community-based organizations, regional organizations, eligible federal agencies, and U.S. territories or possessions.

Foreign participation is handled in a nuanced way. Non-domestic (non-U.S.) entities (foreign organizations) and non-domestic (non-U.S.) institutions are not eligible to apply directly, and non-domestic components of U.S. organizations are also not eligible to apply. At the same time, the FOA allows "foreign components" as defined by the NIH Grants Policy Statement, meaning a U.S. applicant may, where justified and compliant with NIH policy, include certain foreign activities or collaborations as part of the overall project. This structure preserves the requirement that the applicant organization be eligible and primarily U.S.-based while still permitting international scientific elements when they are important for the research aims.

Overall, this grant opportunity is aimed at accelerating discovery in a specific gap area: the biologic underpinnings of DOC health disparities. By supporting short, exploratory projects under an R21 framework (and excluding clinical trials), NIH is signaling a priority for innovative, mechanism-focused research that can lay the groundwork for future studies and, eventually, help inform more effective and equitable approaches to preventing and treating oral diseases that disproportionately affect certain racial and ethnic populations.

• The National Institutes of Health in the health sector is offering a public funding opportunity titled "Biologic Factors Underlying Dental, Oral, and Craniofacial Health Disparities (R21 - Clinical Trial Not Allowed)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.121, 93.307.
• This funding opportunity was created on 2018-07-25.
• Applicants must submit their applications by 2021-09-07. (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 $200,000.00 in funding.
• Eligible applicants include: State governments, County governments, City or township governments, Special district governments, Independent school districts, Public and State controlled institutions of higher education, Native American tribal governments (Federally recognized), Public housing authorities/Indian housing authorities, Native American tribal organizations (other than Federally recognized tribal governments), Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education, Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education, Private institutions of higher education, For-profit organizations other than small businesses, Small businesses, Others.

Apply for PA 18 874

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