HEAL Initiative: Oral Complications Arising from Pharmacotherapies to Treat Opioid Use Disorders (R21 Clinical Trial Not Allowed) | RFA DE 23 016

Opportunity Information: Apply for RFA DE 23 016

The HEAL Initiative funding opportunity titled "Oral Complications Arising from Pharmacotherapies to Treat Opioid Use Disorders (R21 Clinical Trial Not Allowed)" (RFA-DE-23-016) is a National Institutes of Health (NIH) discretionary grant program designed to support early-stage, developmental, and exploratory research. Its central focus is on understanding oral health problems that may be linked to medications used to treat opioid use disorder (OUD). Using the R21 mechanism, the announcement is aimed at generating foundational evidence, clarifying biological mechanisms, and producing preliminary data that can support larger future studies, but it does not permit clinical trials under this specific solicitation.

The scientific purpose is twofold. First, it seeks research that clarifies the biology, natural history, and directionality of oral complications associated with OUD pharmacotherapies. In practical terms, this means projects can investigate what oral conditions emerge, how they progress over time, and whether medication exposure is plausibly contributing to the onset or worsening of dental and oral disease versus simply being correlated with existing risk factors. Studies may look at mechanisms that connect these pharmacotherapies to oral outcomes, including how they might affect saliva, oral microbiology, inflammation, immune responses, pain perception, dietary patterns, hygiene behaviors, or other pathways that could influence tooth decay, periodontal disease, oral infections, mucosal conditions, and broader oral health decline.

Second, the FOA supports research that examines access to dental and oral health care, along with other real-world barriers that may drive the development or progression of oral disease among people with OUD. This part of the opportunity recognizes that oral health outcomes are shaped not only by biology and pharmacology, but also by structural and social factors. Projects can explore challenges such as limited availability of dental services, affordability and insurance coverage gaps, transportation issues, stigma in healthcare settings, fragmented care between addiction treatment and dentistry, and other obstacles that prevent timely prevention or treatment. The goal is to better understand how these barriers interact with OUD treatment and recovery, and how they may contribute to worse oral health trajectories.

Eligibility is broad and includes many U.S.-based entity types commonly allowed under NIH grant programs. Eligible applicants include state, county, and local governments; 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; Native American tribal organizations that are not federally recognized; public housing authorities and Indian housing authorities; nonprofit organizations with or without 501(c)(3) status (as long as they are not institutions of higher education); for-profit organizations (other than small businesses); and small businesses. The FOA also explicitly highlights additional eligible applicant categories 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, eligible federal agencies, regional organizations, U.S. territories or possessions, and Indian/Native American Tribal Governments that are not federally recognized.

At the same time, the opportunity is explicit about geographic and foreign participation restrictions. Non-domestic (non-U.S.) entities and foreign institutions are not eligible to apply. Non-domestic components of U.S. organizations are not eligible to participate, and foreign components as defined by the NIH Grants Policy Statement are not allowed. In short, the work must be fully anchored within eligible U.S.-based applicant organizations and cannot include foreign components under NIH definitions.

From an administrative standpoint, the program is a grant (Funding Instrument Type: Grant) in the education and health activity category, associated with CFDA numbers 93.121, 93.213, and 93.279. The application closing date listed for this particular announcement was February 14, 2023, and the opportunity record was created on August 3, 2022. The award ceiling is stated as $250,000. The FOA emphasizes developmental and exploratory research through the R21 mechanism, and because it is labeled "Clinical Trial Not Allowed," applicants must design studies that do not meet NIH’s definition of a clinical trial for this solicitation.

Overall, this HEAL Initiative FOA targets an important but often overlooked intersection between addiction treatment and oral health. It aims to generate clearer scientific understanding of how OUD pharmacotherapies relate to oral complications over time, while also examining the care access and systemic barriers that can accelerate dental and oral disease in people with OUD. The expected outcome is stronger evidence to guide future research and, ultimately, better-integrated approaches to prevention and care that address both OUD treatment needs and oral health burdens.

• The National Institutes of Health in the education, health sector is offering a public funding opportunity titled "HEAL Initiative: Oral Complications Arising from Pharmacotherapies to Treat Opioid Use Disorders (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, 93.213, 93.279.
• This funding opportunity was created on 2022-08-03.
• Applicants must submit their applications by 2023-02-14. (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 $250,000.00 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.

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